JHM just acquired a 2005 S4 6-speed for more R&D and track abuse (build thread)

[GameBreaker]

This is very good to hear, I can't wait to see it in action!

[jfunkey]

You’ll be surprised at how much it’s going to run, I was disappointed to learn that JHM is reusing the OEM intake while charging a hefty price for basically a core based service.

while if I had an LSX engine, I can get a top of the line 102mm bran new completely revised intake manifold for sub $900. I’m not complaining, the reality is that we will always end up paying more because of the limited availability/production.

I have to say out of the box I kinda felt the same way. I liked the S8 intake manifold Idea. But inturn if your getting 20whp why bother looking a gift horse in the mouth. The cat backs don't give you 20whp and there over 1000$

Still depending on the final price when you look at an intake manifold for the say LS1 motors your looking at 1200+ a 400$ throttle body for about the same hp. No matter how you cut it as long as the hp is there and the price is reasonable its a win win.. I like the idea of something new but then again why spend money when you don't have to. Look at the Dp's spend a little moeny and get reat results

[AndyGs4]

You’ll be surprised at how much it’s going to run, I was disappointed to learn that JHM is reusing the OEM intake while charging a hefty price for basically a core based service.

While I feel the same way, we have to understand that there is limited parts availability for a reason.....Its a limited market.

You can find any number of fantastic intake manifolds for American V8s for sub $1000. But those manufactures sell thousands of them. I don't know what the S4 market cap will be for this part, but I would suspect that they will sell less than a few hundred the first year. Maybe two years. Low volume = fewer automated process = more man made labor = higher price.

I mean look at JHM headers; you can get some pretty damn supreme headers for many, many, many V8s in the sub $1000 range...but not for S4s. But those are all made on automated mandrel bending machines, and welded up production line style, hung on a moving rack and head right to ceramic coating or chrome plating. JHM has their headers built by hand, with few (if any??) automated processes. There isn't enough market in S4 parts to get a volume line setup. Most volume manufacturers will laugh you right out the door if you want less than 1000 pcs of something built. They make the money in the volume. They aren't interested of running small runs consisting of less than hundreds of pieces.

This makes us pay higher prices if we want these parts; but we have the added advantage of not having to see 20 other S4s on the way to work.

[jaybquick@JHM]

i am very glad to hear this! i wish i had headers on my car, but maybe someday! catless dp will do for now...but i like that the IM is on its way to release, can't wait to see it come out! so it looks like we will be reusing our stock intake manifolds huh? wouldn't there be better results with a custom built one? any idea of pricing as of yet?

We have put these on cars with catless piggies, headers and aftermarket downpipes and all have been very pleased.

Unfortunately in the performance industry you can always build a better part, but at what cost? Can you sell more than 3?? Also a custom built one would generally defeat the dual plenum design which maximizes low end torque which is what you feel 90% of the time when driving under 4700 or so RPM. If we did however want to want to make our custom intake manifold with flaps for the dual plenum design we would have to retail for well over $2,000 due to the expensive nature and low volume of sales we would have for the B6/B7 S4. Also with a pure race built intake it wouldn't look stock (big smog issue in some states) and would sacrifice low end torque. Based on our years of making parts for Audi owners with not so light 4 door sedans they tend to want torque and driveability and performance too. We have been talking to owners about such a product for a year prior to even starting our R&D and they didn't seem to keen to turn their German Sedan into a Camaro or Mustang. Plus until a lot of people start doing headwork and motor builds (very labor intensive and expensive on these cars) the top end gain wouldn't be so great for a manifold that would kill your low end torque. Try unplugging the vacuum hose from the black vacuum actuator on the front of your intake and then floor it at 2000rpm, that is how the car would feel but worse with the dual plenum design was defeated. It should be sub $1,000 depending on options.

a big part of modifying the stocker is retaining stock like tq production as opposed to just a top end only gain with losses in tq.
not to mention this option also helps with lower pricing...

Yes with a car that we can't sell thousands of manifolds for, maybe a hundred or so (over time if we can even keep up) if we are lucky this is primarily the only option.

You defiantly can, some of the FAST intake manifolds for the domestic guys make power all around, not just trade low end for top end.

You’ll be surprised at how much it’s going to run, I was disappointed to learn that JHM is reusing the OEM intake while charging a hefty price for basically a core based service.

while if I had an LSX engine, I can get a top of the line 102mm bran new completely revised intake manifold for sub $900. I’m not complaining, the reality is that we will always end up paying more because of the limited availability/production.

Very true, with unlimited budgets you can build manifolds like this.

However you have to remember that their engines are a lot bigger (5.7l and up) than 4.2l as well and many of them will run lower gears to help compensate. Plus unfortunately the market is just too small for us to invest 10s of thousands of dollars into building a custom manifold. But at this point we appear to be the only ones willing to take such risks with even this offering for the B6/B7 S4 so we are not concerned about sales. It was not cheap to build and it took a long time to get it right after several ruined manifolds which are hard to find.

Cores are not easy to find and not many get them back in a timely matter. We would rather not have cores. But 90% of this market wants part throttle driveablitily and more performance and the mid range torque.

With that being said we plan on offering a complete flap delete setup that will drop the price for those who don't care about torque and just want top end for the lowest $$$ spent. Also with the time effort and energy to build these the profit % is not very good and we will have reseller complaints. But this is how we work, we price it is as fair as we can and deal with other shops complaints of "that is all I get for a discount". We are used to this and will continue to do our best to make products that innovate in a platform that was much neglected up until the last year plus and keep pricing items to make you the public happy and worry about the shops complaints later.

While I feel the same way, we have to understand that there is limited parts availability for a reason.....Its a limited market.

You can find any number of fantastic intake manifolds for American V8s for sub $1000. But those manufactures sell thousands of them. I don't know what the S4 market cap will be for this part, but I would suspect that they will sell less than a few hundred the first year. Maybe two years. Low volume = fewer automated process = more man made labor = higher price.

I mean look at JHM headers; you can get some pretty damn supreme headers for many, many, many V8s in the sub $1000 range...but not for S4s. But those are all made on automated mandrel bending machines, and welded up production line style, hung on a moving rack and head right to ceramic coating or chrome plating. JHM has their headers built by hand, with few (if any??) automated processes. There isn't enough market in S4 parts to get a volume line setup. Most volume manufacturers will laugh you right out the door if you want less than 1000 pcs of something built. They make the money in the volume. They aren't interested of running small runs consisting of less than hundreds of pieces.

This makes us pay higher prices if we want these parts; but we have the added advantage of not having to see 20 other S4s on the way to work.

Exactly. We do the best we can to keep the prices down for the public while upsetting resellers who are used to a larger industry markup %.






Thanks again everyone for your feedback and support. We always appreciate any feedback; good, bad or indifferent. This helps us serve you better with the products you want

[drew]

sounds great J. i am interested.

[beemercer]

You guys know I am a big time LSx guy, and my brother's LS3-powered T/A has a Wilson F.A.S.T. intake manifold. It's a terrific piece and makes a huge difference. But when you consider that he has 6.2L and a 4.11 rear end he has no need to worry about low end torque in everyday driving, but on the other hand I do.

To me a sheet metal intake/ short runner only setup makes sense if we really start digging into the heads for more power. I doubt the benefit of higher flow with a sheet metal intake would really be seen on the stock heads. So maybe later Jay and the guys could look into a sheet metal intake manifold, with bell mouths inlets and short/ tapered runners only. For now the JHM modded intake should provide plenty of extra power for the money, just remember some guys used to but $2k pre-cat DPs to get less power.

[Kookie]

Hey, a little off topic, but I have an extra manifold sitting here, it has a hole in it, but if you guys want, I'll ship it to you to help out.. dunno if it's of any use to you guys, but I don't need it... it's just sitting here.

[beemercer]

Hey, a little off topic, but I have an extra manifold sitting here, it has a hole in it, but if you guys want, I'll ship it to you to help out.. dunno if it's of any use to you guys, but I don't need it... it's just sitting here.

Where's the hole?

[jaybquick@JHM]

Quick update guys. We went to the track last weekend (video, timeslips and pics coming soon) and we went 12.707 @ 111mph ALL MOTOR, about 2 mph and almost 3 tenths faster than our previous 12.97 @ 109.1mph. All we added was our new intake manifold and headers. The manifold will be officially released soon, however we are already selling them if you call. I think this is all that is in this car without tearing into the motor and doing head and/or cam work. We then proceeded to turn on our 70hp nitrous shot (system still in development) and went 12.29 @ 117.6mph. All great results.

Thanks again for all of your support.

Hey, a little off topic, but I have an extra manifold sitting here, it has a hole in it, but if you guys want, I'll ship it to you to help out.. dunno if it's of any use to you guys, but I don't need it... it's just sitting here.

That would be awesome. We have tons of spare parts and if we gather enough or get damaged core returns these parts may come in handy to make sure we send out premium parts. Email us at [email protected] and specify that you need us to send you a UPS label for your damaged intake manifold that Jason said we would like.

Thanks for the support.

[CRYA]

OOoh Excellent! Did you guys set the price on the manifold?

[pattrick02]

wow, great progress you guys! can't wait until the official release of the intake manifold...my next step is headers and manifold.....all in the right time! :D

any price set for the intake manifold??

[0000 V8]

Excellent work my friends. PLEASE release a 125 shot! PLEEEEEEASE

[CHECKERED]

We then proceeded to turn on our 70hp nitrous shot (system still in development) and went 12.29 @ 117.6mph.

So there will be a 70 and 100 shot?
Any reason for those two settings?

[drew]

Quick update guys. We went to the track last weekend (video, timeslips and pics coming soon) and we went 12.707 @ 111mph ALL MOTOR, about 2 mph and almost 3 tenths faster than our previous 12.97 @ 109.1mph. All we added was our new intake manifold and headers. The manifold will be officially released soon, however we are already selling them if you call. I think this is all that is in this car without tearing into the motor and doing head and/or cam work. We then proceeded to turn on our 70hp nitrous shot (system still in development) and went 12.29 @ 117.6mph. All great results.

Thanks again for all of your support.

awesome stuff as always. i love your integrity.....

so no hope for a ram air setup to get a bit more out of the motor without tearing into it?

[jfunkey]

awesome stuff as always. i love your integrity.....

so no hope for a ram air setup to get a bit more out of the motor without tearing into it?

yha. Good question. I was kinda liking the idea of the ram air. I would have to think there still going to keep going. they mentioned this in the oil cooler post

[0000 V8]

yha. Good question. I was kinda liking the idea of the ram air. I would have to think there still going to keep going. they mentioned this in the oil cooler post

ditto

[SpooldYou]

Where's the hole?

find yourself saying that much???

[jaybquick@JHM]

awesome stuff as always. i love your integrity.....

so no hope for a ram air setup to get a bit more out of the motor without tearing into it?

We are working on this now. Among other little tid bits to see if we have hit the wall yet with stock heads and cams.

So there will be a 70 and 100 shot?
Any reason for those two settings?

We have been playing with different jetting and will finalize this when the kit is released soon. Obviously the end user can run custom jetting as high as our plates will support of 300 plus, but the rods in our motors will not hold up to that. We will more than likely sell it with conservative jetting and advise customers who want to step it up more.

Excellent work my friends. PLEASE release a 125 shot! PLEEEEEEASE

Anyone can jet the kit to what they want. However we don't think the rods will hold up to a 125hp hit, they are very thin, on a built motor then it would be a different story of course. Heck it doesn't even look like we need 100hp to run 11s. With proper tuning and a well designed kit you can make more power with standard 70hp jetting. This is coming very soon officially.





UPDATE ABOUT THE MANIFOLD, OUR DYNO RESULTS AND OUR RECENT TRACK VISIT.
I figured I would follow up in this thread to clear things up about our intake manifold. Up front I would like to apologize for typos or rambling, I want to get this info out there and am putting some extra time here on Saturday to get this done.

We started on this project over a year ago and after lots of hard work and several configurations we got the results we were looking for. We confirmed them initially on 034s dyno back in early February of this year. Why didn't we post this info online? Well we wanted to install several more all over the country and on cars with different configurations. So we headed to Detroit Michigan in Late February to install 3 more of these manifolds on 91gl's car, beemercer's car and cabracco85s car among other things. We used VAST Performance's shop (thanks again guys) as the meeting place since Cabracco85 was coming from the Chicago area, beemercer was coming from MA and 91gl was coming from Jersey. We did also have Sakimano come down from Canada for the mods but he didn't get the manifold. The results were the same as what we saw on our car eariler that month. So with it proven on multiple cars we needed to get an automatic car under our belt and try our new gasket match tapered spacers since we had done our car and the three in Detroit by gasket matching the heads (which was a ton of work). So as you can see 10mpg's car did just as well as my car (see my dyno sheets below).

Then the next day after his dyno we headed back to the dragstrip to see how the 16whp we saw on my car equated to the quarter mile. Well we did very well once we got used to launching with our headers that bring a bunch more torque down low. We ended up with a best of 12.70 @ 111mph (with our new intake manifold and our headers) which was a strong improvement over our previous best of 12.97 @ 109mph (with a stock intake manifold and stock exhaust manifolds). We then turned on our 70hp shot of nitrous and went a best of 12.29 @ 117mph. A video and informational thread is coming soon. We will also do a full public release of our intake manifold and nitrous kit very soon as well.

So here are some pics that should clear things up. Once again we have kept the dyno sheets to ourselves since we felt it was irresponsiple and ignorant to sell products solely based on dyno sheets and peak numbers. Now that we have the times at the dragstrip we are ok with sharing our info. Also we are not concerned with peak numbers since we know we can see higher or lower numbers on other dynos and temperature, humidity, baro pressure, etc all play into the fact that we don't play the dyno game. This is also why my intake manifold and 10mpg's intake manifold were installed personally by me on 034s dyno right after some baseline pulls. Prior to each pull using my infrared temp gun I recorded the intake manifold temps and kept them consistent. Once completed with the swap I warmed the car up completely, then turned it off for the motor to heat soak the manifold, then started it up and waited until the temps stabilized within 5 degrees of the baselines. We know we can't learn anything if we don't keep the controls constant. On my car we even installed it without any of our optional heat shielding that we put on 10mpg's car.

With that all being said, ENJOY!


COMPLETELY Stock baseline (done when we got our car last year) vs. all our bolt ons. tune and headers and our new modifed intake manifold.



All the bolt ons and tune including headers and a STOCK intake manifold vs. our JHM modified intake manifold we swapped on while strapped to the dyno. I even got the new intake up to same temp as the previous runs. Unfortunately on the dyno the intake doesn't get to 100 F like it does while driving, so the peaks may have been better. I used an infared temp gun before every pull.



Our car on 91 octane vs. THE best RS4 dyno pull they have ever seen. Most of them put down less than 300whp on the 034 dyno due to their carbon buildup issues we don't have to deal with. This car had only 5k miles on it. As you can see we CRUSH the RS4 until the 6k range. I bet we could walk one shifting at 6500 rpm since we make way more power before then.




Here is the hail mary pull with a switch to our standard 93 octane tune and some race gas mixed in. We also cooled the intake manifold down really well. The better gas and 93 octane tune really as a TON of torque over our 91 octane and some HP up top. This was just for fun and for the info since we don't believe in using a hail mary pull to sell products. There was probably more in it if we put more race gas in it and got the manifold colder.



The latest time sheet.





And of course pics and info on our new manifold.













Regarding pricing and availability right now on the manifolds.

$950 is the base price which includes the JHM re-engineered manifold and a ported throttle body, then add $100 if you want our tapered gasket match spacers like we used on 10mpg's car. If you want the shielding installed add $30. We also offer a powdercoating service for $150 in a multitude of colors. For those who want the stock colors we will use high quality VHT engine paint in colors close to stock (since the manifolds get scratched cosmetically when performing all the work). If we send you a manifold and throttle body first there is a $500 core charge. If you send yours in, due to the back log it may take 3 to 5 weeks as of right now.

As of right now (4-17-10) we are back ordred by 5 manifolds. We are working on getting more cores and if you want to get in line and pre pay for yours call us at 209-968-0077 or email us at [email protected]

[beemercer]

Nice dyno sheets, that's some killer power .

Can't wait to see more N/A stuff.

[GameBreaker]

Must close... wallet...

[noznab]

Every time I read a post from JHM I can feel my wallet getting lighter and lighter

[SpeedETC]

Jay!! Thanks for sharing the information. I cannot wait for mine to ship .

[drew]

big thumbs up!

[pattrick02]

this is awesome! but i can't i can't i can't....JHM, you guys suck for shrinking my wallet! Just kidding, you guys are amazing!!!

[Dodge2Dub]

So as you can see 10mpg's car did just as well as my car (see my dyno sheets below).

10mpg, have you noticed any tranny slips since installing the current list of mods? Also, have you been able to get close to the 12.7 run on the 6 speed without NOS?

[bangoman]

Subscribed with great interest - thinking of getting a B6 S4 myself, possibly high miles. Looking at the options if the engine blows further down the road, much like in this thread: http://www.audizine.com/forum/showth...rebuild+v8+4.2

JHM's very informative R&D thread here will reveal the answers I'm sure.... and also highly amused that in between the abuse of testing runs, the B6 S4 is getting some love in the form of Jay's wife and kids! With the low end torque smashing the RS4 and the .56 6th gear, I think you have yourself the ultimate family cruiser.

Good work JHM!

[B00sted20VUSP]

Absolutely Amazing. Never thought the B6/B7 platform would come to this. As for JHM, i cant say enough. They have been answering and helping me everyday with my cars lean issue, reviewing my logs and helping me for 2 weeks now. Those guys are great. Answer every Email, and are gonna set up something for me at Vast to have my car looked at. Like i Said I cant say enough about Jay, Dan and the rest of the guys at JHM. Keep it up! I know the B6/B7 has been dubbed not being a tuner car, but all this has me questioning the latter. A mid 12's AWD Family Sedan is "Alright with me!"

[Dodge2Dub]

JHM, have the automatic cars been able to join the fun in the 12 second club?

[drew]

JHM, have the automatic cars been able to join the fun in the 12 second club?

pretty sure justin is sitting on a 13 flat right now...i don't see why not really soon

[Dodge2Dub]

pretty sure justin is sitting on a 13 flat right now...i don't see why not really soon

Ah, I thought he ran the 13 before the intake manifold.

[Phillyb7s4]

Nice

[jfunkey]

Ah, I thought he ran the 13 before the intake manifold.

Yes I don't think he had the intake yet. I think with the ram air and the intake he should be good. Ill tell yoiu what if you go for a ride its a 12 sec car all day long. he busted off a 111mph but his best pass was 13.00x @ 110

[jaybquick@JHM]

UPDATE 7-26-10: Here is the post from the video and timeslip release for our 12.70 @ 111mph all motor runs and 12.29 @ 117mph nitrous runs back in April. Plus a little surprise at the end of the video.

Well we finally got the car to the track with our NEW Intake Manifold and Headers and a small shot with our nitrous system back in April and since we have been quite busy (the end of the video will clear that up). Hence the delay on getting the footage up for you guys. Thanks everyone.


Once again thanks for the support, it is because of your support of us we have been able to build you guys these parts and support you. Also I apologize if I have delayed on getting back to anyones PMs on here, I have been extremely busy with what you will see at the end of the video. I am working on the PMs now.


ALL MOTOR SLIPS



NITROUS SLIPS (didn't shift as quick, there is more in this setup)




MODS: JHM 100chp direct port Nitrous system (70 to 80whp and 70 to 80wtq), JHM tuning, JHM Intake Manifold, JHM Headers JHM Lightweight Flyhweel, JHM Stage 4 Clutch, JHM Lightweight Crank Pulley, JHM Lightweight front & rear rotors, JHM/FI 2.5” cat back with X-pipe, JHM shifter and linkage upgrades, Stock airbox with K&N filter and flapper mod and a COMPLETELY stock motor down to the heads, cams and block.



Here is what we found regarding the conditions using drag times Density Altitude calculator based on the time of 15:00 being stamped on the 12.70 @ 111mph timeslip.

Track Elevation: 30 ft

Air Temperature: 57 degrees F (the temps on my dash display were in the mid to high 60s after each pase so I am not sure how close the weather station drag times uses is to this track on the outskirts of town. This could be attributed for the heat coming from the track due to the sun being out.)

Barometric Pressure: 30.01 inches Hg

Relative Humidty: 45%

Density Altitude: -105 feet

Relative Density: 100.31 %



All in all I am trying to keep track of this so we can have good records of all the changes we make to the car. There was more in it since we didn't do much cooling down and got a ton of passes. (more fun that way though)




And of course the VIDEO


And for the YouTubers -> VIDEO ON YOUTUBE


Thanks again everyone.

[jaybquick@JHM]

Went to the stip on the 20th with our new supercharger setup and went 12.24 @ 117mph in almost 90f. Then trapped 119mph later in the night, but with the extra power we couldn't get the car to hook and better the time. Videos and info coming soon.

Thanks to everyone who has been following this thread and tbeating we have put this car through.

[Smylife]

IN for video of the pass!

[MD4Babes]

AWESOME!!

[jaspirr]

Just a completely random question: I'm close to buying a JHM intake manifold. Do I need to get the intake spacers as well or will I be fine without them?

[beemercer]

Went to the stip on the 20th with our new supercharger setup and went 12.24 @ 117mph in almost 90f. Then trapped 119mph later in the night, but with the extra power we couldn't get the car to hook and better the time. Videos and info coming soon.

Thanks to everyone who has been following this thread and tbeating we have put this car through.

Time to put in the signature Jay!

[beemercer]

Just a completely random question: I'm close to buying a JHM intake manifold. Do I need to get the intake spacers as well or will I be fine without them?

You really should get them. Besides the benefits of a much cooler intake tract and much more consistent performance due to a reduction in heat soak, if you get the tapered spacers they will gradually direct the flow from the gasket matched intake manifold port to the smaller head opening.

[jaybquick@JHM]

UPDATE 5-15-11. SUPERCHARGER KIT NEWS

First off I would like to thank each and every customer who has purchased a clutch kit, flywheel, shifter, headers, intake spacers, lightweight rotors, replacement rotors, brake pads, spark plugs, oil change kit, etc. Every purchase from us (no matter how small or large) counts. Without your support of purchasing our B6-B7 S4 parts this supercharger kit and this kind of power would not be possible. The bottom line, the more you buy from us the more money we use to develop new and innovative parts for your B6-B7 S4. Without your support for the past several years we would never have ran a 12.70 all motor, a 12.29 with nitrous and now a 11.96 with our supercharger kit. Our customers continue to drive us to bring more We appreciate your comments as well, weather you email or call I am always made aware of what our B6-B7 S4 customers want and continue to think of and develop new parts for the B6-B7 S4 on my personal 135k mile 05 S4 as the first guinea pig. Look for more power and quicker ETs with our new built engine program that should start showing results by late 2011.


NOW ABOUT THE KIT AND THE TRACK RESULTS.
Well this was several months ago but we didn't want to release this video and information until we were closer to an official public release. We still need to finalize instructions and build up our stock of production parts. Look for the OFFICIAL release of this kit by summers end and we are currently doing LOCAL installs only. Please email [email protected] for more details.


THE TIMESLIP



THE VIDEO


We just started to migrate videos old personal account jaybquick and will be adding more videos to our jhmotorsportsinc account where this video is hosted. In the meantime if you wan to see a bunch of our old videos on you tube visit http://www.youtube.com/user/jaybquick

Windows media version for those who want to download it -> http://jhmtuning.com/videos/B6S4/Sup..._11s_Intro.wmv


WHERE CAN YOU SEE THE JHM RanD CAR WITH THIS KIT?1. I drive it daily to and from the shop so if you ever come by our location in northern califronia I will be more than happy to show you the car and give you a ride.
2. Also our supercharged car along with Dan's B7 RS4 will be at our booth at Infineon raceway for the 10th Anniversary Audizine meet on May 21st 2011.


PICTURES OF THE KIT ON MBGT72s car we did back east. Updates on our car shortly.









DETAILS OF THE KIT
HERE ARE THE DETAILS OF OUR STAGE 1 KIT FOR STOCK ENGINES – Estimated 80whp to 100whp increase over their current configuration – mod, dyno, temp, elevation and octane of gas dependent of course. Stage 2 and Stage 3 will make significantly more power and will require a BUILT engine. Details on this will come out as we build engines for this application and test out combinations. Ultimately our kit is limited by the rods and pistons in a stock engine, so you will be at the max power with this kit that you can safely run without significantly shortening engine life. Keep in mind this kit can grow with you to make 200plus whp more than your current configuration once you build your engine (inquire with us for details.)

OVERVIEW OF PARTS INCLUDED - Pricing and ordering details coming later this summer.

- Vortech Centrifugal Supercharger(Good for up to 800HP) – Self contained with Quiet Helical cut gears. Only noise heard is at idle, at wide open throttle you hear nothing.

-JHM Laser Cut Reinforced Steel Brackets, Powder coated black

-JHM 6 rib accessory belt conversion

-JHM 6 rib S/C Pulley (6 to 6.5 psi depending on exhaust and other misc mods)

-JHM 6 rib Supercharger specific Alternator pulley

-JHM 6 rib Supercharger specific Balanced Crank pulley

-JHM Belt tensioner and rollers

-JHM 1 Piece reinforced silicone Inlet hose

-JHM 1 Piece silicone Outlet hose

- Diverter valve

-JHM Crankcase Vent System

-K&N Conical Air filter

-JHM Oil Cooler/aux radiator removal kit

- JHM S/C Tune

-JHM DROP IN injectors (will support up to 800hp, so you won’t have to upgrade if you build your engine and step up to our stage 2 or stage 3 parts for your SC kit)

-Bosch spark plugs (supercharger specific for this engine as determined by JHM’s research and testing)

-A/C Relocation Kit with new receiver drier and hoses (we modify part of the OEM lines for our new lines to be an easy bolt on fit so a core charge is required)

-All bolts, hardware, clamps and misc for a 100% complete kit.


NOTE: Clearancing of the core support (1/4 of the lower portion to be removed) is required and as well some notching of the bumper support mount points at the frame rail. Clearancing for the inlet hose on the supercharger near the passenger sway bar mount point is also required. On B7 S4s, some trimming of the bumper near the factory fog light will be required as well.




Thanks again everyone and look for more from JHM for all Audi V8 engines in the coming years!