Serious Supercharger and Pulley Talk

[Maverick]

The G3 kit is running the Eaton M62 supercharger and comes with 3.15" pulley which max out at 9psi.

I am going to get a custom tune by Greg@ssptuning very soon therefore I am going to drop the pulley size.

here is the dilemma begins

I have read on mustang cobra forums, Eatoninside forums about the effiency of this particular SC.

the smallest pulley that is the most efficient is the 2.8" or 2.76" pulley, anything smaller than that will just generate too much heat and make the supercharger inefficient and decrease the life of the supercharger.
more boost isn't always good.

I have a snow performance stage III water/meth kit with a 2Bennett oil cooler. should I still fuck with 2.6" pulley or just do the 2.8" pulley?

I want to hear some expert's opinions

[AudiA4Turbo22]

i'd say trust the ones that r talking i'm sure they're running meth on some of their cars, and i don't think it would be worth it to experiment on a car u just spent ur heart and years of cash on. I say stick with a 2.8" pulley, ur already going to make some massive power.

[Maverick]

anyone else?

[PCYC]

i say stick with the 2.8" safe not sorry, I agree with ^^ post. I think consistent reliable power is better than inconsistent crazy power. Please get a good solid tune on your Current PES pulley for the rest of us haha. then go smaller...

what about an intercooler with a 2.6" pulley would the IC become efficient possibly? the G3 doesn't run an IC because its not worth it if i am not mistaken.

[2001S4NY]

sounds good when your drop off the car drop off 2 pulleys

[2001S4NY]

M62 will be "off map" after 5000rpm with this engine.
It's max flow is ~470cfm while engine "eats" 700cfm at red line

[Boosted3.0]

Mav: I don't know much about your set-up, but I know on stock internals with a smaller pulley on the G3 is almost 100% fatal. Even with meth. Unless your built I wouldn't touch the pulley reguardless of tune. Someone can chime in if I'm wrong...

[Maverick]

i say stick with the 2.8" safe not sorry, I agree with ^^ post. I think consistent reliable power is better than inconsistent crazy power. Please get a good solid tune on your Current PES pulley for the rest of us haha. then go smaller...

what about an intercooler with a 2.6" pulley would the IC become efficient possibly? the G3 doesn't run an IC because its not worth it if i am not mistaken.

IC is useless for a 3.0

DSMIC is too expensive. I asked Greg@DTH before

[Maverick]

Mav: I don't know much about your set-up, but I know on stock internals with a smaller pulley on the G3 is almost 100% fatal. Even with meth. Unless your built I wouldn't touch the pulley reguardless of tune. Someone can chime in if I'm wrong...

my internals are built

[Boosted3.0]

Oh then go 2.8 lol. I was in the market for a Cobra for about a year untill I settled on my A4 since I couldn't find a good one for a reasonable price. Anything smaller then a 2.8 is just overspinning it aaaalllllooooottttt. Even ported Eaton setups can't drop below a 2.8.

[Maverick]

ported blower doesnt meant it's more power, it may fuck up the air flow.

last question, do I need to get new Idler?

[Boosted3.0]

Yeah a ported blower won't increase boost, just cfm. I'm not sure about the idler pully on a 3.0. I don't recall the belt size, your just going to have to check it on the boost gauge about how many psi your putting out, or how loose the belt is. I believe a 2.8 on the G3 is 10psi? Check me on that tho.

[Ill 3.0]

IC is useless for a 3.0

DSMIC is too expensive. I asked Greg@DTH before

I don't think intercooling wouldn't be worthless, just not cheap to accomplish.

Can't wait to see where this goes though. So when are you dropping your car off at SSP? Are you going to have multiple files made (stock pulley, small pulley, water methanol on/off, etc.)?

[Maverick]

I don't think intercooling wouldn't be worthless, just not cheap to accomplish.

Can't wait to see where this goes though. So when are you dropping your car off at SSP? Are you going to have multiple files made (stock pulley, small pulley, water methanol on/off, etc.)?

nope, just a file that works with my setup

I would have multiple files made if I have money, lol.
It takes too much time and money to write a complete new software.

[smarrick]

I have no useful info at this time but I do have a question.

Porting the super charger? Just the inlet and outlets ports? Is there really much porting to do what are gains? I know that is will increase volume and such but how much does it actually help on blower like this?

[AudiA4Turbo22]

^^more air get sucked in, so essentially more power.

See if u run a 2.8" pulley it should yield u 10-12 PSI of boost. If u went any smaller u'd be spinning the supercharger to fast pushing it out of its efficiency range. I think that intercooling is necessary, what i would do is try and fit a 1.8T stock SMIC in the stock location, this way it costs nearly nothing. As for the idler i'd see if u can get one that would work that would be a little tougher because i'm sure it puts much more stress on it, that's my $0.02 though.

[PCYC]

good luck mavi when are you dropping it off?

[Ill 3.0]

what i would do is try and fit a 1.8T stock SMIC in the stock location, this way it costs nearly nothing.

I like this idea, there would still be a lot of custom work needed and would require a new hood, but if you had the right equipment and know-how it could work nicely. Also B5 S4/RS4 SMICs should be fairly readily available too.

[AudiA4Turbo22]

^^why a new hood? see it would mount in the factory location, and the duct will be through ur driver's side fog light area, this way it'll sit low, and everything bolts up directly, only thing that he has to figure out is the hoses.

[Boosted3.0]

The design of the G3 and the manifold of the 3.0 doesn't have any room at all for an intercooler. That's why if you could rig something up you would need a higher hood. Someone did this on scaudi.com and the intercooler put the dyno up about 5hp. Not worth the money IMO. Meth is going to do the same thing.

[AudiA4Turbo22]

^^does the manifold cover the area where stock intercooler is written here?

[Ill 3.0]

. Someone did this on scaudi.com and the intercooler put the dyno up about 5hp. Not worth the money IMO. Meth is going to do the same thing.

I'm guessing this was with PES software which is designed for non-cooled use. With a built motor and custom tune (such as this) you could build that into your software for lots of potential gains.

[Maverick]

^^more air get sucked in, so essentially more power.

See if u run a 2.8" pulley it should yield u 10-12 PSI of boost. If u went any smaller u'd be spinning the supercharger to fast pushing it out of its efficiency range. I think that intercooling is necessary, what i would do is try and fit a 1.8T stock SMIC in the stock location, this way it costs nearly nothing. As for the idler i'd see if u can get one that would work that would be a little tougher because i'm sure it puts much more stress on it, that's my $0.02 though.

IC idea is good. or get a bottle!

[Maverick]

good luck mavi when are you dropping it off?

pusshing for next week

[Maverick]

thanks guys, I am not going to do anymore custom work.
I need to stop! it will be really stupid for me to push the envelop even more with custom IC and then smaller pulley again.

I am done for a while after this retune with bigger fuel pump and bigger injectors and custom tune. either 50 or 75 shot of nitrous will be on next year or so.

[AudiA4Turbo22]

i say do the pulley i mean that sounds kool.

[Boosted3.0]

a4turbo22. 3.0 doesn't have any IC. There is no room with the G3 and the intake manifold to run the piping without a raised hood. Theres plently of room to mount an IC but it can't connect to anything lol.
Ill3.0, it was with a custom tune. Just the charger and manifold combo, an IC doesn't really cool the intake charge at all on a 3.0 G3.

[skeeball]

Every other application of the M62 that I know of is using an intercooler. Decreasing pulley size will yield rapidly diminishing gains as you just push hot air around. And as others have pointed out, hood modifications would be necessary to squeeze a plate in there.

Someone needs to push the envelope though.

[smarrick]

^^does the manifold cover the area where stock intercooler is written here?

Wait what? Ya except the problem is stealing the hot air from blower that is directly mated to manifold.

And no one really answered question about porting the blower I know more air.....blah blah. I get how internal combustion engine works. Question is how much can you actually get out of doing that. I dont see alot of "porting" there would be to do.

[skeeball]

V8's with ported M112's see 10-20hp gain. I'm guessing the 3.0 wouldn't see more than a couple of HP if any. Inside the margin of error anyway.

[Boosted3.0]

skeeball-http://www.stiegemeier.com/home.html

smarrick-ported eaton cobras usually see around 60rwhp gain with a pully, some see closer to 100 at the wheels with the right tune.

[skeeball]

skeeball-http://www.stiegemeier.com/home.html

Yes. They rebuilt my blower.

smarrick-ported eaton cobras usually see around 60rwhp gain with a pully, some see closer to 100 at the wheels with the right tune.

Different size engine, different size blower. Call Stiegemeier and ask them what kind of HP gain you would get from porting an M62 on a 3.0 v6.

[Boosted3.0]

I'm sure it wouldn't be worth it lol.

[AudiA4_20T]

so just get a spare hood and throw a FMIC on this bish

[AudiA4Turbo22]

do what mtm did for the rs4 clubsport put a hood scoop

[Maverick]

MTM's kit is too pricey!!!!

I can't think of how you can put a FMIC on a 3.0

the intake manifold is right between the blower and the engine, there isn't much room at all. If there is a hood scoop, it would be too big!

besides, the engine bay would look funny because it's not clean looking anymore.

[nimski62]

MTM's kit is too pricey!!!!

I can't think of how you can put a FMIC on a 3.0

the intake manifold is right between the blower and the engine, there isn't much room at all. If there is a hood scoop, it would be too big!

besides, the engine bay would look funny because it's not clean looking anymore.

First of all.. if im not mistaken you have a tip. How the hell do you plan on pushing 400+ hp on that tranny? shit i just had the s/c and i was slipping all the time.

[Ill 3.0]

First of all.. if im not mistaken you have a tip. How the hell do you plan on pushing 400+ hp on that tranny? shit i just had the s/c and i was slipping all the time.

Something was probably not quite right with your setup. Dpatel has had a G3 on a TIP for a few years without major problems. Also, there are some BT guys here with TIPs that make a lot more torque and seem to be ok.

But I agree, the limit will probably be reached soon.

[PCYC]

so mavi are you doing the 2.8 pulley for sure?

[2001S4NY]

so mavi are you doing the 2.8 pulley for sure?

car was dropped off to me with a 2.8 Pulley tonite, 60Lb Injectors, and a Upgraded Bosch Fuel pump. All i have to wait for now is the stock airbox so we can start.