E46 M3 forced induction - Page 2

BLOWN3 · #16 (**permalink**) 07-13-2002, 09:49 PM

What you have i.e. the "GT Splitter" is $1099 (USD I presume). Yikes! My non-adjustable one is $690 AUD. I think I'll have to go with the non-adjustable one!

Is the "adjustment" on your spoiler basic sliding action? Or is it more complicated than that?

Thanks for the prompt reply!

Josh · #17 (**permalink**) 07-14-2002, 09:26 AM

Paddy Mack · #18 (**permalink**) 07-14-2002, 10:28 AM

Quote:

Originally posted by RacingDynamcs
KS made a supercharger for the e46 M3 goes from 333hp tooo... 525HP totaly insane...

you have a link?

love to come up to speed on this. Like most on this board, I've heard of nothing but engine failure on any FI for the E46.

BLOWN3 · #19 (**permalink**) 07-14-2002, 09:13 PM

Quote:

Originally posted by Josh
Here are some pics of it with the bumper cover removed. The two outer posts are spring loaded sliders and the center posts are used to lock the splitter in place.
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Cool! Thanks for the pics! But I think I'll just go for the fixed splitter that is available locally!

Your wheels are hot!

FaRTaLOTTT · #20 (**permalink**) 07-14-2002, 09:34 PM

Forced Induction will be possible. Look at the S2000. Isn't compression lke 12:1?? I might be wrong, it might be closer to 11.x:1 or something like that, but look at all the blowers available for that car and look at how many are advertised through shows and magazines. Weren't there many SC's available for the E36 Euro Spec motor as well too? There aren't many differences from the euro spec E36 motor and now current E46 M3 motor right? Compression should at least be....CLOSE to the same.....Just my o2 cents.....

2002 turbo · #21 (**permalink**) 07-14-2002, 10:16 PM

S50:
Do you really think after doing so much work, constant testing and development work that anyone would let the whole world know what their exact engine specs are!
Do you see Champ car teams advertising what turbo sizes and compressor trims they use, or camshaft profiles, don't thinks so!
If you consider the M12 motors racing history its no suprise that such a small motor can make so much power. Hell over 20 years ago BMW North America were running E21 320i turbos with this exact engine in IMSA and were producing over 600 bhp, with mechanical injection and older turbo technology! Do I have to mention the F1 power outputs too, you got to know about that!

BLOWN3 · #22 (**permalink**) 07-14-2002, 10:28 PM

Quote:

Originally posted by FaRTaLOTTT
Forced Induction will be possible. Look at the S2000. Isn't compression lke 12:1?? I might be wrong, it might be closer to 11.x:1 or something like that

Just confirming! It's 11.0:1 according to my S2000 Brochure (Australia Spec... maybe different for you guys?) whereas E46 M3 runs 11.5:1.

Some may say 0.5 isn't much different but imagine if the M3 ran 0.5 more? 12.0:1!

Have to run on aviation fuel all the time!

S50 · #23 (**permalink**) 07-15-2002, 10:09 AM

Quote:

Originally posted by 2002 turbo
S50:
Do you really think after doing so much work, constant testing and development work that anyone would let the whole world know what their exact engine specs are!
Do you see Champ car teams advertising what turbo sizes and compressor trims they use, or camshaft profiles, don't thinks so!
If you consider the M12 motors racing history its no suprise that such a small motor can make so much power. Hell over 20 years ago BMW North America were running E21 320i turbos with this exact engine in IMSA and were producing over 600 bhp, with mechanical injection and older turbo technology! Do I have to mention the F1 power outputs too, you got to know about that!

2002,

Easy mate.

IIRC I didn't ask for exact engine specs. I was simply curious to see what CR you are running, which grade of fuel, and what size turbo(T61, T66, etc....).

I did not ask what your cam profiles are, which valve springs you are running, the dome shape of your pistons, what headwork you have done, the a/r of the turbo, what trim wheels you're running, nor if it's a tangential or on-center turbine.

Again, just amazed as to how much power you're putting out and curious about some GENERAL questions.

Thanks anyways.

BLOWN3 · #24 (**permalink**) 07-15-2002, 08:59 PM

Quote:

Originally posted by S50

2002,

Easy mate.

IIRC I didn't ask for exact engine specs. I was simply curious to see what CR you are running, which grade of fuel, and what size turbo(T61, T66, etc....).

I did not ask what your cam profiles are, which valve springs you are running, the dome shape of your pistons, what headwork you have done, the a/r of the turbo, what trim wheels you're running, nor if it's a tangential or on-center turbine.

Again, just amazed as to how much power you're putting out and curious about some GENERAL questions.

Thanks anyways.

DOn't worry - 2002 turbo is just annoyed at non-believers. Don't take it personally

Just to clarify what 2002 turbo said, that same engine could deliver over 1000bhp in qualifying trim (using only 1.5L but a lot of boost) with old technology! Go BMW!

2002 turbo · #25 (**permalink**) 07-17-2002, 01:55 AM

Quote:

Originally posted by S50

2002,

Easy mate.

IIRC I didn't ask for exact engine specs. I was simply curious to see what CR you are running, which grade of fuel, and what size turbo(T61, T66, etc....).

I did not ask what your cam profiles are, which valve springs you are running, the dome shape of your pistons, what headwork you have done, the a/r of the turbo, what trim wheels you're running, nor if it's a tangential or on-center turbine.

Again, just amazed as to how much power you're putting out and curious about some GENERAL questions.

Thanks anyways.

Its all good mate, I am a bit short fused in that regard, if you knew how competitive our racing category you'd understand why I am quite guarded on the info. Hope you didn't take offence to the comments, they were a bit blunt.

I won't reveal the CR but the fuel we use is BP100 avaiation fuel,
we would like to use VP C16 but the cost is nearly 3 times as much as the stuff we use and its not as readily avaliable.
I must say I am suprised that you think its a heap of power, well ok it is heaps but what they did in F1 was plain crazy! With 1500cc they made 1350 bhp in qualifying trim, in 1986!