**OFFICIAL** Life Beyond Stage II: the higher stage development thread

[Acejam]

Just upgraded from 181 to 187 received the CP and noticed some minor scratches bent like , would this be an issue down the line or it’s nothing to worry about

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My JHM 187 was perfect when I received it brand new but I dropped it during install and it ended up just like that, so I’m pretty comfortable in saying yours looks dropped too. Fortunately it’s the top of the ridge/outermost edge, and the belt does not directly contact that area despite how it looks. I’ve been running mine for almost a year now without any issues.

Wrap a belt around it and find out for yourself.

I also highly suggest using the stud trick when installing crank pulleys to help prevent issues like this.




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[evil35r]

That’s crazy my 180 cp was the same way a small scuff and slightly bent I’ve been running it for 1k miles and it’s fine. Contact cts they gave me a $200 refund to keep the pulley...

- - - Updated - - -

Like in the exact spot too that’s wierd thinking cts has qc issues. They also supply a belt to big.

[VNA4]

I bought it from ECS , did you buy it from CTS directly?


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[evil35r]

Yes I did cts directly.

[vpls4]

Bell Performance - Ethanol Defense. So I bought some of that...put about 1.2 oz to 12 gals of gas @ E32. Their website mentions 1oz to treat 10gals and also mentions importance of treating E10-15 gas.

So are you guys just going with the 1oz to 10g or are you compensating for the higher E you run?

Did you notice any hesitation or minimal loss of power? Only ran the car once since adding it...could've been weather cond's or imagination.

[WillS4]

Bell Performance - Ethanol Defense. So I bought some of that...put about 1.2 oz to 12 gals of gas @ E32. Their website mentions 1oz to treat 10gals and also mentions importance of treating E10-15 gas.

So are you guys just going with the 1oz to 10g or are you compensating for the higher E you run?

Did you notice any hesitation or minimal loss of power? Only ran the car once since adding it...could've been weather cond's or imagination.

I haven't used fuel additives since my first car...I never saw a single one that provided any benefit. Can't speak for others on here, but my guess is that most are just buying premium grade fuels (Shell, etc) and if are adding, it's only race fuel. I haven't seen any downside to running an ethanol mix other than needing to fill up a bit faster, using two pump nozzles, and now hitting the limits of my fuel pump with a 194pulley and cooler weather. (HPFP will hopefully correct).

[ModItNow]

Bell Performance - Ethanol Defense. So I bought some of that...put about 1.2 oz to 12 gals of gas @ E32. Their website mentions 1oz to treat 10gals and also mentions importance of treating E10-15 gas.

So are you guys just going with the 1oz to 10g or are you compensating for the higher E you run?

Did you notice any hesitation or minimal loss of power? Only ran the car once since adding it...could've been weather cond's or imagination.

I've been running Lucas ethanol condioner and now Starbrite. Never seen or felt any downsides. My lpfp was getting clogged recently from running full e85 and was bogging during acceleration. I added 1.5 oz of Starbrite and I was able to run a full tank without bogging, pretty amazing. I want to try Bell, I heard it doesn't use alcohol which is good for the long run.

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[konst86]

My logs with new pulley 194mm
A4 B8.5 3.0T s- tronic Revo st2 (93 File)
3rd/4th gear pull (97-200km/h= 60-125m/h)
14*C ambient
Dual pulley (194mm/57.65mm)
Custom chargecooler (water 95% + 5% motul mocool)
[IMG][/IMG]

[[waZZup]]

My logs with new pulley 194mm
A4 B8.5 3.0T s- tronic Revo st2 (93 File)
3rd/4th gear pull (97-200km/h= 60-125m/h)
14*C ambient
Dual pulley (194mm/57.65mm)
Custom chargecooler (water 95% + 5% motul mocool)

You've cut the most intriguing part of the log - pressure :)

[Johnson]

ModItNow, have you replaced your fuel filter? I haven't heard of anyone replacing it on the forums though so not sure it would help.

I've been running full E85 for some time now and think it's starting to cause some issues like long cranks, a p0087 code I got yesterday, and some pretty high fuel trims.

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[ModItNow]

ModItNow, have you replaced your fuel filter? I'm wondering if it would help.

I've been running full E85 for some time now and think it's starting to cause some issues like long cranks, a p0087 code I got yesterday, and some pretty high fuel trims.

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I haven't actaully replaced it yet, got stuck on removing the lid and trying to source a better tool. PITA. I got a flex fuel version pump, should make good difference.

Apprently your suppose to replace the filter every year or so when running high ethanol blends.

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[RWD2quattro]

ModItNow, have you replaced your fuel filter? I haven't heard of anyone replacing it on the forums though so not sure it would help.

I've been running full E85 for some time now and think it's starting to cause some issues like long cranks, a p0087 code I got yesterday, and some pretty high fuel trims.
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It’s easy to replace filter, I did replace mine thinking my shit was clogged up due to E. I cut apart the housing to expose filter and filter was clean and had no build up anywhere. Every 3k I run Liqui Moly fuel injector cleaner, even my valves looked great at 83k.
http://https://www.audizine.com/forum/showthread.php/611289-What-did-you-do-to-with-your-S4-today?p=13311458&viewfull=1#post13311458
http://https://www.audizine.com/forum/showthread.php/611289-What-did-you-do-to-with-your-S4-today?p=13300499&viewfull=1#post13300499

[ModItNow]

It’s easy to replace filter, I did replace mine thinking my shit was clogged up due to E. I cut apart the housing to expose filter and filter was clean and had no build up anywhere. Every 3k I run Liqui Moly fuel injector cleaner, even my valves looked great at 83k.
http://https://www.audizine.com/forum/showthread.php/611289-What-did-you-do-to-with-your-S4-today?p=13311458&viewfull=1#post13311458
http://https://www.audizine.com/forum/showthread.php/611289-What-did-you-do-to-with-your-S4-today?p=13300499&viewfull=1#post13300499

I tried that fuel injector cleaner when you recommended it to me last. I think that stuff works, one morning I blew some black smoke out on a cold start haha

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[RWD2quattro]

I tried that fuel injector cleaner when you recommended it to me last. I think that stuff works, one morning I blew some black smoke out on a cold start haha
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Same here 😁, I just installed the flex pump. I’ll log tomorrow and go from there.

[Johnson]

So replacing the in tank filter is a PITA? Is this the correct filter?
https://www.europaparts.com/fuel-fil...0201511ta.html
The price seemed too good to be true.

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[ModItNow]

So replacing the in tank filter is a PITA? Is this the correct filter?
https://www.europaparts.com/fuel-fil...0201511ta.html
The price seemed too good to be true.

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It seems to be easy but the cover to the tank is giving me issues. With the right tool it should be fine. That's a crazy low price, seems like the b8
filter price. When I was looking it was $270 so I decided to spend a little more and go with the whole new flex fuel version.

https://parts.audiusa.com/p/Audi__/F...0919051AN.html


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[whiped]

I used this to remove the LPFP last time, worked great!

https://www.amazon.com/gp/product/B00QL6HXJI/

[ModItNow]

I used this to remove the LPFP last time, worked great!

https://www.amazon.com/gp/product/B00QL6HXJI/

The teeth on that one look better than the one I got

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[RWD2quattro]

I used this to remove the LPFP last time, worked great!
https://www.amazon.com/gp/product/B00QL6HXJI/

That’s the one I bought and it works well.

[mia748sp]

I've been lurking on this thread and in the forum for quite awhile now. It's been a great resource/reference for me and thought I'd offer to make a few harnesses for the CWA100 if anyone is looking to go that route. I have a few of the connectors needed to make about 3 or 4 extra currently. I'll have to test it out when I'm back home. I've been in and out of town a lot lately but should be around a lot after mid October. The connectors are easily souced through electrical distributors. I contacted Tecomotive while researching and they had this to say about the swap:

The CWA50 uses a different internal control circuit than the CWA100.

To get a bit more technical....
The CWA50 has an internal pull up and the CWA100 an internal pull down
resistor.
So it really depends of the cars ecu controlling circuit.
So in not so technical terms ... It might work. But it might also not
work at all.
The signal GND of the CWA100 by the way is no problem. You could just
connect it to the cars ground.

[friskuh]

For anyone that knows about boost, DI engines, & volumetric efficiency; how much power do you think can be gained from not only porting the supercharger but also the heads, with 1mm oversized valves & possibly shaved down camshafts?

[cspcrx]

without knowing the flow of the stock heads its hard to say if valves would be enough with the stock cams. It may take new cams with longer duration to make the next large jump.

[friskuh]

without knowing the flow of the stock heads its hard to say if valves would be enough with the stock cams. It may take new cams with longer duration to make the next large jump.

that's why i said shaved cams,

[friskuh]

i'm not looking for accurate just approximate. if 20-30 whp was gained through supercharger how much would be gained from head porting, valve upgrade , & shaved down camshafts

[kelseysautobody]

i'm not looking for accurate just approximate. if 20-30 whp was gained through supercharger how much would be gained from head porting, valve upgrade , & shaved down camshafts

Not an apples to apples comparison but with head work and 7a cams the 20v 5 cylinder AAN sees 20-30whp gains. Maybe more depending on the build. It's obviously a much older motor but is capable of putting down some good numbers.

[bhvrdr]

Not an apples to apples comparison but with head work and 7a cams the 20v 5 cylinder AAN sees 20-30whp gains. Maybe more depending on the build. It's obviously a much older motor but is capable of putting down some good numbers.

Also not the same engine but when I built my 2.0T engine I did a 5 axial port and Polish one the heads and was able to run the 104 octane race file using only 93 octane fuel.

Apr resuts were VERY interesting as well...

https://www.goapr.com/news/2013/05/1...-head-porting/

[GandalfTheIbis]

Also not the same engine but when I built my 2.0T engine I did a 5 axial port and Polish one the heads and was able to run the 104 octane race file using only 93 octane fuel.

Apr resuts were VERY interesting as well...

https://www.goapr.com/news/2013/05/1...-head-porting/

I'll take 126hp. Happily. Even a 10% increase over a dual pulley setup would be worth it to me.

[nick0188]

Figured this may be the best place to ask this, since most in here have been around a while. I haven't found much of anything with people adding fans to the front of the HX? Pretty much all of supercharged vehicles replace the HX (bigger) and add fans, and in this platform we only replace the HX. I currently am dual pulley (57.5/183) with a porter Jokerz blower (new coolers), have the Merc HX and reservoir divorced with the pump mod and other basic bolt ons (gutted cats, DP's, AWE track rear, Autotech pump upgrade, IE intake) and am fighting IAT'S. From 60-120mph I watch them go from 40C to 75C via my P3 gauge. System is 50/50 G13/Distilled water (going to switch to a most water based mix after winter), been bled a billion times and I just don't see how they are still this high. They do recover VERY quick, going back down to 40C from 75C in about 5-10 seconds.

Back to my fan idea, they hover around 50C in the heat in traffic and I thought fans may help this and ever would on the highway. I was thinking 2 6" fans on the bottom of the HX under the crash bar. This is where hot coolant comes in so I figured I'd be most effective there.

Any help/suggestions?

[TruS4]

Same struggle man...but saw better iat when i was 70% water

[extratime]

Figured this may be the best place to ask this, since most in here have been around a while. I haven't found much of anything with people adding fans to the front of the HX? Pretty much all of supercharged vehicles replace the HX (bigger) and add fans, and in this platform we only replace the HX. I currently am dual pulley (57.5/183) with a porter Jokerz blower (new coolers), have the Merc HX and reservoir divorced with the pump mod and other basic bolt ons (gutted cats, DP's, AWE track rear, Autotech pump upgrade, IE intake) and am fighting IAT'S. From 60-120mph I watch them go from 40C to 75C via my P3 gauge. System is 50/50 G13/Distilled water (going to switch to a most water based mix after winter), been bled a billion times and I just don't see how they are still this high. They do recover VERY quick, going back down to 40C from 75C in about 5-10 seconds.

Back to my fan idea, they hover around 50C in the heat in traffic and I thought fans may help this and ever would on the highway. I was thinking 2 6" fans on the bottom of the HX under the crash bar. This is where hot coolant comes in so I figured I'd be most effective there.

Any help/suggestions?

I ran dual 7 inch fans for almost a year. They didn't do a thing. They do look good though.20170715_144410_resized.jpeg

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[nick0188]

I ran dual 7 inch fans for almost a year. They didn't do a thing. They do look good though.20170715_144410_resized.jpeg

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Thanks for that heads up. They have been removed from my list!

Speaking of this, I actually un-did the pump mod (hooked it back up to oem control) and have been seeing ridiculously better results (as crazy as that sounds). I did a pull from 60-150 a few days ago and ended at 75C. Another from 60-130 ended at 65C. Before I would hit 75C by 100mph.


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[PeteRock]

Thanks for that heads up. They have been removed from my list!

Speaking of this, I actually un-did the pump mod (hooked it back up to oem control) and have been seeing ridiculously better results (as crazy as that sounds). I did a pull from 60-150 a few days ago and ended at 75C. Another from 60-130 ended at 65C. Before I would hit 75C by 100mph.


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The fans definitely don’t work....I’ll actually be testing out an external spray system that was originally developed for the B5 S4 after the Winter is over here in Chicago

I picked up the kit when I purchased my Water/Meth kit because I can control the pump with the Cortex EBC Boost Controller and program it to only spray at certain times based on quite a few variables like IAT, RPM, Speed etc.

It taps right into the washer fluid reservoir and they just released a new design that allows you to string together multiple nozzles in a lot of different places and they can be stuck to the back of your grille with tabs that make them invisible

I have the KC and was actually thinking of spraying it and the AC condenser especially at low speeds and at idle

https://usrallyteam.com/index.php?ma...ro58d7usqtu5v4


Pete

[evil35r]

I thought the same thing. However with your mods your iats shouldn’t be that high I see the same iats but with stock sc and hx only thing I have is pump mod And meth. Merc is on order. I would think you should be below 65c as that is what I am expecting. I thought dual fans controlled by a switch would be pretty cool. Curious as to what others think

[nick0188]

I thought the same thing. However with your mods your iats shouldn’t be that high I see the same iats but with stock sc and hx only thing I have is pump mod And meth. Merc is on order. I would think you should be below 65c as that is what I am expecting. I thought dual fans controlled by a switch would be pretty cool. Curious as to what others think

The divorce of the loop doesn’t really do anything if you still run a 50/50 G13 mix, so I wouldn’t expect that to help. The ported blower I heard would help, but I haven’t seen much in that regard. I don’t believe it recovered as fast before though, so maybe there is where is it is helping.

I actually ran two switches last night, one to connect/disconnect PWM for the coolant pump (to do the pump mod on demand) and another for the fans I’m going to eventually do. Probably will wait until spring and swap out coolant for mostly distilled water and add the fans. Was just looked to see if anyone else had dabbled in that, as I couldn’t find anything!

Edit: I didn’t realize you’re post meant you have the stock HX too. Ugh.


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[evil35r]

Fwiw you can run 25% coolant to water yearly where you are located. I run 25% all year good for -10...

[BDP]

What I noticed most with divorced system is the onset of heat issues is just delayed. Once it get's heated up, it's back to the same ole rinse lather repeat process in getting temps to come back down. I also noticed my coolant in the lines doesn't get nearly as hot but the supercharger case can still cook an egg on it after a few pulls. I really think you can throw as much as you want at upgraded cooling but until you can mitigate the heat transfer from the block to the supercharger I don't see much success. I think it's why killer chiller systems work so well because you can actually cool the entire supercharger down and the coolant. I've yet to see that with standards means outside of an ice box.

[Jimcoily]

Questions for you guys mixing E85 and pump gas 91, 92, and 93 octane
1) Have you noticed a difference in MPG?
2) Are you running a 100 octane tune or using the E85 for cooling?

I plan on Ultracharging my S4 when I find some time, I'm debating if I should go with the 91 tune or the 100 tune. If I go with the UC 100 tune I plan on mixing 4 gallons of E85 and the rest 92.
I'm also planning on running meth in the future.
Thanks for the help

[cspcrx]

Specs in sig and my UC gets installed next week. I have been running stage 2 and DP APR 93 tune for a long time. I would not do their 91 tune if you have access to E85 or flex fuel. Yes my mpg dropped but really not that much.

I run a blend that gets me E28 which is 95 octane fuel on the APR 93 octane tune. I do not have access to E85 but Flex fuel which I have tested at my station is actually 51% ethanol or E51. To do this I run a 1.3 to 1 ratio of 91 octane to flex fuel (E51). Done this for several years and love it no issues.

This only answers part of your question as I have never tried the 100 octane tune.

[Jimcoily]

Thank you for the reply, I misunderstood E85 octane rating. I thought E85 was somewhere around 116 octane but its more like 100. I think ill go with the 93 UC tune.

Specs in sig and my UC gets installed next week. I have been running stage 2 and DP APR 93 tune for a long time. I would not do their 91 tune if you have access to E85 or flex fuel. Yes my mpg dropped but really not that much.

I run a blend that gets me E28 which is 95 octane fuel on the APR 93 octane tune. I do not have access to E85 but Flex fuel which I have tested at my station is actually 51% ethanol or E51. To do this I run a 1.3 to 1 ratio of 91 octane to flex fuel (E51). Done this for several years and love it no issues.

This only answers part of your question as I have never tried the 100 octane tune.

[IllusionalTA]

Octane rating isn’t as important in regards to ethonol, like it is for petroleum products, the E85 cools the air charge, and it is resistant to knock, due to this property, allowing more advance, and the by product is lower IAT’s in the chamber. I’ve made 1700hp on e70, in my firebird, sad we can’t run straight E85, but the gains and how cheap it is make it a wise choice for fueling these hot boxes..