AA Tuning E46 M3 Supercharger

[jmick5]

Ive looked all over the net regarding this aa sc and nobody seems to be willing to give the simple performance figures 0-60 0-100 1/4 mile etc.

Does anybody know ? even the guys at aa tuning.

I have a new m3 convertible and would love to have it perform in the same light as an sl55 AMG. Im not talking about performance of modified Skylines and Supras as Ive no wish to have that type of car at all. I had a TVR Cerbera 4.5 that would hit 60 in 3.7 secs and 100 in 8.9 and it had to go because it was just not practical. The M3 is in my eyes anyway is perfect except slightly underpowered.

Therfore Id like to rectify this and all I want to know is

The times stated above and will the aa sc give me the same kind of performance as a SL55?

If not Ill wait for the new M3/M4 in 2006, here in the UK ?


Ill be astounded if I get a straight forward answer to this.

PS

Stupid question I know but can you open the boot without having to press the button on the key. ?

[skyline_r34v]

Originally Posted by jmick5 Ive looked all over the net regarding this aa sc and nobody seems to be willing to give the simple performance figures 0-60 0-100 1/4 mile etc. Does anybody know ? even the guys at aa tuning. I have a new m3 convertible and would love to have it perform in the same light as an sl55 AMG. Im not talking about performance of modified Skylines and Supras as Ive no wish to have that type of car at all. I had a TVR Cerbera 4.5 that would hit 60 in 3.7 secs and 100 in 8.9 and it had to go because it was just not practical. The M3 is in my eyes anyway is perfect except slightly underpowered. Therfore Id like to rectify this and all I want to know is The times stated above and will the aa sc give me the same kind of performance as a SL55? If not Ill wait for the new M3/M4 in 2006, here in the UK ? Ill be astounded if I get a straight forward answer to this. PS Stupid question I know but can you open the boot without having to press the button on the key. ?

lmao are you serious? The M3 underpowered? Wtf are you smoking, the M3 is nothing but underpowered. It's a 3.2L I-6 making over 107hp/L, that's FAR from being underpowered. Most V8's alone don't even make the HP the M3 does with a low liter I-6.

Anyways like we have said before MANY times, we don't trust having even a supercharger strapped onto the E46 M3 because the compression is 11.5:1. That's just WAY to high for any type of FI, whether it be turbo, super or nitrous.

We don't think the engine will last very long but you can be the tester to see how long it actually lasts ;).
You'd have to put in alot of tune time on the dyno (which tuning costs $60-100/hour and running on the dyno usually runs $100/3 runs) which gets very expensive. It's not going to be a plug-and-play like they say it'll be. You're going to need to do every bit of tuning there is possible without blowing up your engine.

Also, I don't believe I know of a way to open the trunk without the push button, there's no keyhole there for the purpose of aerodynamic reasons, right??

[skyline_r34v]

If I were you, I either trade in your M3 for the E60 M5 or the new V8 M3 that's coming out in a few years.

[jmick5]

I thought as much no concrete figures. As for power , Im not stupid, of course the m3 has lots of power compared to most cars but when compared to the SL55 then I would like it to have more. I could buy a merc but I want the M3 as to me its a better car altogether and mercs have an old man image in the UK ( 500 BHP OR NOT )

I also don't want the m5 as its not for me. What I do want in an m3 with 450 bhp a 0-60 of around 4.2 secs and a top speed of 180 mph.

So therefore what to do

1. Wait for the next m3 to hit our shores and hope it delivers.

2. Go ahead and get aa tunning to sc the engine and hope it lasts.

Has anybody read the article in European Car magazine ? What does it say.

Also gladiator what is the 0-60 and top speed on your CSL ? Id love to see it against the AA red bmw from their web site. Do you think it would have a chance ?

Also would your CSK live with a sl55 AMG on a 1/4 mile ?

[SERGIOE34]

I think you should just call dinan,Im sure they can get very close to the power you want and still be safe on your engine.I think you get a waranty anyway.

[thepolarfoxqx]

supercharging just isn't a good solution for a number of reasons on an E46 M3, the engine's characteristics aren't suited very well at all to it. You should work off a car's natural characeteristics to enhance it. Dinan, schnitzer, a number of people have solutions for you. If you REALLY wanted to, a Hartge M3 with a schnitzer or Dinan engine kit would get you 470 naturally aspirated hp, but that would be very expensive.

[reggid]

i would wait for the E90 let BMW do all the tuning and R&D work for you. its much simpler this way and results are always better, maybe not as fun though. BMW have more skill and resources than any other aftermarket tuner so from the factory is best.

FI is possible on an M3 anyone who says it not is wrong, it just costs a lot. But why would you want to change the power delivery characteristics of an NA M engine. i drive a 2.5L i6 and its power delivery is much more enjoyable than any big V8 or SC engine even though it has far less power.

jmick5, you could get a coupe which is about 200kgs lighter which would feel like you've added another 30kw or 40hp to your converible. But you probably bought a convertible for a reason.

[thepolarfoxqx]

i didn't say it wasn't possible. i said it wasn't practical, nor was it a good idea. The M3's engine has been optimized in every way to be a high-winding, naturally aspirated motor. The valve angle, the manifold design, head shape, to get a supercharger on there, you'd have to get lower compression pistons (there isn't even a question there), the engine just wouldn't do as well supercharged. An engine that is left fairly unoptimized for one given thing will do any fairly well, an engine like one from saab or volvo or porsche that has been designed for a turbocharger on it will do better with a turbo, just how it is. You can put a supercharger on an M3, but it loses all it's top end, and will probably cut the engine's lifespan a lot. 400hp is possible naturally aspirated from the 3.2. It's hard, but it can be done, and it is a better solution, and also weight reduction is huge. The E90 will be lighter (we hope), and will be over 400hp, that might be a good solution.

I just don't know any credible tuners who know BMWs that put a blower on the E46 M3, and that says something to me.

But i'll agree, it can be done, i just think it's impractical and a bad idea. You have to rebuild to bottom end to get a blower on it.

[jmick5]

Its a bloody shame that the engine can't be modified to produce this kind of power, guess its because as you say the engine is already highly tuned.

This doesn't stop me dreaming however and Im sure this need is going to get the better of me sooner rather than later and Im going to get some mods.

thepolarfoxqx you seem to know what your talking about but seem to be at odds with what gladiator and aa tunning are saying. Why is this ? Have you worked for BMW or are you a mechanical engineer with experiance of this engine? Whay are your credentials ? I say this with respect.

What do you think the specs for power, 0-60, 1/4 mile etc are for his SC CSL. Theres a video on the site of his car beating a SL55 AMG. Do you think this is possible. It makes me very interested in SC my own car when I see this.

As he hasn't posted regarding my earlier question to him what in your opinion are the specs for his car and would it compete with a SC AA tunning car.


Anyway Im getting the European Car magazine delivered tomorrow that reviews the AA SC car. Ill scan it and post it if you want. In the snippets on the AA web site it states that the reviewer said

"AA has developed a supercharger system for the current generation BMW 3 Series that is quite possibly the best tuner program this writer has experienced. Powerful, smooth, quiet, AA's supercharger has the refinement BMW owners expect and deserve"... Les Bidrawn, EC

Its very difficult to know what to believe !!!

Wish I didn't like this car so much !!!!!!!

Apologies for the spelling its late and Im pissed.

[skyline_r34v]

Well paying $40-$60 for your M3 I'd surely hope you enjoy and love the hell out of your car. It would be a waste of money if you didn't.