E46 M3 + 5.5psi =............................

[Prestige329i]

Here are the dyno charts (mustang) for the E46 M3 with the Rotrex blower. The car is running 5.5psi with STOCK INTERNALS (compression has not been touched ). The car has over 100+ dyno runs and we even took it up to Sebring this weekend for Winterfest. For those that don't know Florida, that is about 180 miles from AA. We went with about 12 BMWs and I don't mean easy driving. Highway 27 was OWNED by AA this Saturday.


THESE ARE PRELIMINARY DYNO RUNS, FINAL TUNING IS NOT DONE YET!


Note: the RPM signal was a bit off on both vehicles.


BTW, don't worry, I will be posting DYNOJET results for all you skeptics out there

[Prestige329i]

stay with me

[Prestige329i]

I hope I have not lost you yet............

[JazzM]

Prestige, is that the same rotrex SC as in the regular SC kit? or are you guys coming out with an update (T.U. ) of the SC kit... I know Karl mentioned something along those lines when I spoke with him last...

This looks really good... definately a good option for SC'ing the S54... hopefully it will hold up

Best regards,


T.

[M3TurboCa]

Prestige329i if its the same supercharger as what you are using now. How did you limit the boost to 5.5psi via pulley.

Very impressive numbers for 5.5 psi so is this setup with a intercooler setup too ? Solid increase in torque across the power band when on boost

Nice if you use the factor of 20% loss that 450crank hp.

You think in future the boost will be increased to 7 or 8 psi.

I like the graph on the af nice and flat.

[mpowerme]

E46 M3 drivetrain loss is about 16-17% which is still a healthy 420HP!

[CRISTIAN]

About E46 M3 US I know for sure have been dynoed at 282 whp @ 7900 rpm or 333 at crank. So, what car is that, maybe have low compression or something ?

So, what' up ? This wonderfull high rev M car have been detuned ?
So, where is the rev man ? There is no way to keep together the high rev Euro M Power and FI ? big shame. only my opinion. maybe I miss something? please explain me.

and BTW, the 1,17 factor is more realistic, is about 421 hp at crank.

[CRISTIAN]

mpowerme, you are right

[///MCubed]

From my understanding, it is a larger SC'er unit than the one currently available for the E36/E46.

[Borderline]

[RyanC]

About E46 M3 US I know for sure have been dynoed at 282 whp @ 7900 rpm or 333 at crank. So, what car is that, maybe have low compression or something ?

This is from a Mustang dyno, not a dynojet.

So, where is the rev man ?

Note: the RPM signal was a bit off on both vehicles.

[Kevlar]

You E46 M3 guys may want to put your name on this list...

http://www.aatuning.com/ProjectE46M3...SCwaitlist.cfm

I'm already on the list.

[DocWyte]

Wonder if AA has any plans on using the larger sc on the E36 M3's as well...

[///M3ryder NY]

hmmm, cool... Just enough power to give a "twin-screwed" e36 M3 a run for it's money....

[Barry]

Hey Guys, chill!! the final results are not out yet, Karl and I decided not to use the standard 8000 RPM rev limit, we dropped it to 7600 for now and may very well keep it there, our expectations of 100 flywheel HP over stock has been exceeded. The stock car made 265-266, so if you do the math you will see that the gain is approximately 35-36%, which would indicate 445-450 flywheel HP.This goal was to be achieved with as low a boost level as possible, remember the S54 has close to 11.5:1 compression and we still have to make the kits available to 91 octane customers.Another thing to remember is the reliability of the S54 is much better if the RPM's are kept lower.With forced induction, there is no need to rev the motor higher to make it breathe better. We will be taking the car over to a dynojet to get some numbers for the members who like to compare everything.

[stimpee]

: :

Nice job guys!!

It will be quite interesting to see how this holds up over the long haul. Sounds like you are doing your homework though!

Or is that Home"werk"...



Steve

[M3TurboCa]

Opps forgot about the high compression of that motor.

How much more power would it have made at 7600rpm as it looks to be climbing.

Quoted: Or is that Home"werk"... Steve

[JazzM]

no M3turboca, it's not Home"werk", nor Home"werke"... in German it's Hausaufgaben the literal traslation being House-tasks (Aufgabe means task).

Enjoy...

T.

[Prestige329i]

Originally posted by stimpee

It will be quite interesting to see how this holds up over the long haul.

I am sure alot of people are curious about the same thing. What month is One Lap again?????

[CRISTIAN]

well, OK, OK, but the E46 M3 S54 crank is made for 8000 rpm. Also the lightweight aluminium pistons from S54 motor are again made for 8000 rpm. The S54 crank have a special quality, is the best balanced crank. also the pistons have a special quality for high revs. Maybe you don't understand me, to limit the RPM'S in S54 motor is a detuned operation very sure. So why we don't open the S54 motor, and change all the parts with cheap parts for SC purpose ? More revs means more energy, and more energy means more power. No one succed M3 revs, and we just kill that M. And I'm convinced that who will succed to use all the qualitys of this S54 engine and keep the 8000 rpm and tune the fuel there, will be the best tuner.

OK, good results, very good, but this M3 crank support very well 8000 rpm. Was made for that. I see tuners in Europe that use FI and 8000 rpm. Also is right here on the board one guy from Turkey with Euro S50B32 and 8000 rpm, mertdastan ?

I'm sure is more complicate to tune FI at 8000 rpm then say that is about reability...

And, in this situation with only 7200 rpm max. hp, than this car need another diff., something like the old one 3.23.

My opinion, I will wait until somebody will have ready a FI kit for my future E46 M3 with 8000 rpm.

[stimpee]

It is the very beginning of May.

Need someone to drive it?!?!?!?!

[Barry]

Karl is thinking of sending this car to the one lap with Catesby Jones at the wheel, but that is just a thought for now,Rotrex is pushing for us to do that, they want to sponsor the car. As for a stg2 for the e36 m3 using the C38, that is also a possibility, then again the E36 has been out of production for 5 years now and the market is getting a bit crowded. The E46 M3 sc project was basically my baby, Karl let me have my way with it and he just assisted me along the way.He is good about things like that, he allows me to use my know how and skills freely.

[M3TurboCa]

CRISTIAN I dont think what you are saying is correct that its harder to tune at 8000 vs 7200 all there is fueling and timing how much harder and complicated will that be.

Nick how much harder is it ?

Cristian obviously you know that the reason the stock motor turns over at 8000rpm is to gain hp.

Just like how the F1 engine gets high hp out of small displacement they use RPM!! and that is why the E46 M3 turns that high.

You think if Bmw could get the same power at 7400rpm they would not chose to do so?

Do you think that Honda would get 240hp out of that S2000 motor if it did not turn that high of a rpm. No they would not.

Why would anybody care if a sc kit came out and turned 400-500rpm lower and still produce over 100hp I know I would not.

Barry you bastard you have best of both worlds a Turbo E36 and now a SC E46/M3 :

I presume this is your car and you are letting someone drive it in a one lap race you are a brave man Anything can happend in a race even though you are a good driver.

[Prestige329i]

Originally posted by CRISTIAN
My opinion, I will wait until somebody will have ready a FI kit for my future E46 M3 with 8000 rpm.

If the engine is built to spin to 8000 rpm , then why are they spinning rod bearings on the M3 but the M Coupe with the same engine (7600 RPM Limit) is not having the bearing problems????

Originally posted by CRISTIAN
More revs means more energy, and more energy means more power.

I understand what you are saying, but remember, that also means more money. When we designed this kit, we did it to get good power but at a price that would be affordable. If you want we can totally build the motor add a large amount of boost and generate tons of power. But then again, how many people can afford to do that.

Originally posted by CRISTIAN
So why we don't open the S54 motor, and change all the parts with cheap parts for SC purpose ?

When you are building a car to have more than 450hp, there is no cheap way to go about it. There is only the right way, and unfortunately, that way tends to cost

[bimmerpwr]

My goodness, finally!

I wonder if AA is using stock injectors or bigger injectors? I get the impression that they are not using additional injectors or any piggy backs to make it work. I guess they successfully tuned S54's ECU to push more fuel. Cool!

Day of SCing S54s for more people is coming near, I can feel it.
Finally more option for S54 owners!