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      11-21-2008, 03:35 AM   #45
RED///M3
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Who did you hear that from? They said they were not going to look into doing a turbo kit for the E92 M3 for a while.
I was talking with 360 and tony was looking at doing a turbo kit and gave hp freaks a call and had a chat. They asked if he wanted his car to be the proto But tony didnt want to send his car so far away and be without it for that long. There is a few reputable shops in FL that are willing to do a turbo kit and active can tune it so....I would prefer a turbo over a SC but either would be awesome lol
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      11-21-2008, 03:54 AM   #46
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I was talking with 360 and tony was looking at doing a turbo kit and gave hp freaks a call and had a chat. They asked if he wanted his car to be the proto But tony didnt want to send his car so far away and be without it for that long. There is a few reputable shops in FL that are willing to do a turbo kit and active can tune it so....I would prefer a turbo over a SC but either would be awesome lol
It is going to have to be a manual car for turbos.
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      11-21-2008, 11:07 AM   #47
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Boost and a 12.0CR engine is NEVER a good idea..... especially with street gas.... maybe 7.5 psi is the most you could run.....but in theory that could be 200hp gain? But that would be pushing the limit of detonation in street gas....
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      11-22-2008, 05:27 PM   #48
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Boost and a 12.0CR engine is NEVER a good idea..... especially with street gas.... maybe 7.5 psi is the most you could run.....but in theory that could be 200hp gain? But that would be pushing the limit of detonation in street gas....
detonation? Like the cars gunna blow up
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      11-22-2008, 05:53 PM   #49
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detonation? Like the cars gunna blow up
no detonation is premature fuel burn inside the cylinder. basically, unburned fuel and air inside the cylinder can ignite under pressure and heat outside of the normal burn that occurs with each stroke. it can cause damage because of the added pressure detonation puts on the rods and crank. when he's talking about detonation of street gas he's talking about gases with lower octane ratings. the higher the octane rating, the more efficiently and evenly it burns, the less likely chance of detonation.
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      11-22-2008, 06:27 PM   #50
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I like the car non-boosted. I just left my torque pig 335xi for an M3. I like the M3 better, it is alive whereas the boosted car has no emotion.

Plus the guys are right, a 12:1 compression car should not be boosted, you are just going to tear it to pieces. On top of that you gonna need 100 octane fuel.

GL but I sure would like to see someone here run it for a while. This is way different than doing a stroker. The reasons why the stroker costs so much is because it is done right.
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      11-22-2008, 06:44 PM   #51
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I like the car non-boosted. I just left my torque pig 335xi for an M3. I like the M3 better, it is alive whereas the boosted car has no emotion.

Plus the guys are right, a 12:1 compression car should not be boosted, you are just going to tear it to pieces. On top of that you gonna need 100 octane fuel.

GL but I sure would like to see someone here run it for a while. This is way different than doing a stroker. The reasons why the stroker costs so much is because it is done right.
An 11.5:1 car should not be boosted either right? Ever take a look at the E46 M3 forced induction scene?

What about the 11.8:1 Carrera S? Several superchargers out for it making it quite formidable.

A high compression motor just won't take as much boost without detonating on pump gas, that is all. It is all in the tuning, it can and will be boosted and make incredible power at low PSI. You are not going to need 100 octane unless you want to push the limits.

With boost it is going to have emotion or whatever you call it. That is the beauty of it, you still have off boost power and response like you do now, but with an incredible top end. It is the best of both worlds.

Last edited by Sticky; 11-22-2008 at 08:51 PM.
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      11-22-2008, 08:48 PM   #52
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Originally Posted by Sticky View Post
An 11.5:1 car should not be boosted either right? Ever take a look at the E46 M3 forced induction scene?

What about the 11.8:1 Carrera S? Several superchargers out for it making it quite formidable.

A high compression motor just won't take as much boost without detonating on pump gas, that is all. It is all in the tuning, it can and will be boosted and make incredible power at low PSI. You are not going to need 100 octane unless you want to push the limits.

With boost it is going to have emotion or whatever you call it. That is the beauty of it, you still have off boost power and response like you do know, but with an incredible top end. It is the best of both worlds.
You took the words right out of my mouth... people are boosting e46's like crazy and they are holding up extremely well.

Like sticky said yes a motor with less compression is more ideal but with more compression you just cant turn up the boost as much as the same motor with lower compression.

Just because a motor is high compression doesnt mean it can't take boost.
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      11-22-2008, 10:00 PM   #53
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Any boosted E9x M3 should make a ridiculous amount of power. It will be interesting to see what is available in 2-3 years, maybe over 550whp.

IIRC, the first s/c kits for the E46 M3 were just over 330 whp. It took 3-4 years after the E46 M3 debut to break the 500hp barrier.

I can't wait to see this kit completed!
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      11-22-2008, 10:24 PM   #54
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I just got done doing this for 4 years with the 350Z platform..

You can boost any car and any motor... It comes down to tuning, you wont be able to run high boost on the stock block but i don't see why a conservative tune at lower PSI would not be reliable>> I ran 10psi on a stock Vq35 block for a year before I built it and never had a problem>> I am sure the M motor is alot more robust than the Nissan..
With more power more things need to be addressed.. Axles, drivetrain, clutches just to name a few.. It never stops, I have my 700hp monster already, and theres no way I;ll boost this motor.. there way to much to figure out about what this motor can put up with... Hell we cant even get the dam DCT to work right...

Just my 2cents
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      11-23-2008, 04:51 AM   #55
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Any boosted E9x M3 should make a ridiculous amount of power. It will be interesting to see what is available in 2-3 years, maybe over 550whp.

IIRC, the first s/c kits for the E46 M3 were just over 330 whp. It took 3-4 years after the E46 M3 debut to break the 500hp barrier.

I can't wait to see this kit completed!
They cracked 400 wheel with the first kits for the E46 M3.

I would expect 530 wheel on the E92 @ 5.5 psi, if not more. 5.5 psi is fine even on piss 91 octane.
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      11-23-2008, 03:18 PM   #56
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I still haven't figured out what I want to do. I'll see what these kits get priced at and make my decision from there. If they are too pricey I'll be looking to be around 400whp, all motor. If I go the FI route, I'd be happy with 500whp boosted, I just hate the torque curve of centrifugal superchargers. My buddy had a vortech 350z with around 400whp, and the power was so peaky it wasn't a "400whp" car until around 3rd or 4th gear.
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      11-23-2008, 04:58 PM   #57
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I still haven't figured out what I want to do. I'll see what these kits get priced at and make my decision from there. If they are too pricey I'll be looking to be around 400whp, all motor. If I go the FI route, I'd be happy with 500whp boosted, I just hate the torque curve of centrifugal superchargers. My buddy had a vortech 350z with around 400whp, and the power was so peaky it wasn't a "400whp" car until around 3rd or 4th gear.
You say you will be happy with 400 wheel NA, but it is never ending. 500 wheel and 400 wheel is a pretty big difference.

I don't know how you can hate the torque curve of a centrifugal, it makes power just like the factory curve.

Regardless, my goal is 400 wheel NA for now.
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      11-23-2008, 05:16 PM   #58
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Quote:
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An 11.5:1 car should not be boosted either right? Ever take a look at the E46 M3 forced induction scene?

What about the 11.8:1 Carrera S? Several superchargers out for it making it quite formidable.
The RS4 is another example. MTM does 5.8 psi on a 12.5:1!
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      11-24-2008, 03:42 AM   #59
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I hope they will have this ready by Jan. sometime
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      11-24-2008, 03:50 AM   #60
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I hope they will have this ready by Jan. sometime
Jan. 2010? That sounds about right.
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      11-24-2008, 03:52 AM   #61
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Jan. 2010? That sounds about right.
lol you think? How long did they say it would take? Im not sure how active's is comming along but they have been working on it for 5-7 months now and i heard it would take about 9 months or so?

I guess it gives me more time to save up
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      11-24-2008, 04:20 AM   #62
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lol you think? How long did they say it would take? Im not sure how active's is comming along but they have been working on it for 5-7 months now and i heard it would take about 9 months or so?

I guess it gives me more time to save up
I am sure they will have the supercharger mounted and the associated hardware fabricated within 6 months. I am sure they will have the car running and be working on the tuning in the months after that.

However, getting miles on the kit to test in various conditions before releasing it simply takes time, no way around it.

If we had a supercharger kit available for purchase within 1 year of the cars release that would be some kind of record.
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      11-24-2008, 08:22 PM   #63
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Quote:
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You say you will be happy with 400 wheel NA, but it is never ending. 500 wheel and 400 wheel is a pretty big difference.

I don't know how you can hate the torque curve of a centrifugal, it makes power just like the factory curve.

Regardless, my goal is 400 wheel NA for now.
It is a big difference in power, but so is the cost/work associated with supercharging. I just want a fairly reliable setup without being the guinea pig for the outer limits of the S65B40. After riding in a turbo 400whp and a supercharged 400whp, I prefer the punch of the turbo. Plus I like reaching 400whp at around 6500rpm rather than 8000rpm. I like top end power too, but centrifugals are too peaky for me. As far as the factory torque curve, I think it builds power in a nice progressive manor, and it doesn't feel that peaky to me. I owned an S2000 for a few years, and that is what I call peaky, not the ///M
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      11-25-2008, 04:13 AM   #64
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It is a big difference in power, but so is the cost/work associated with supercharging. I just want a fairly reliable setup without being the guinea pig for the outer limits of the S65B40. After riding in a turbo 400whp and a supercharged 400whp, I prefer the punch of the turbo. Plus I like reaching 400whp at around 6500rpm rather than 8000rpm. I like top end power too, but centrifugals are too peaky for me. As far as the factory torque curve, I think it builds power in a nice progressive manor, and it doesn't feel that peaky to me. I owned an S2000 for a few years, and that is what I call peaky, not the ///M
If you want power / torque down low, why get an M3?

The Centrifugal isn't peaky, don't know what you are talking about. It builds boost with revs, in a nice progressive manner.
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      11-25-2008, 10:43 AM   #65
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I prefer the punch of the turbo. Plus I like reaching 400whp at around 6500rpm rather than 8000rpm.
Then sell your M3 and buy a 335i. Problem solved.
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      11-25-2008, 04:20 PM   #66
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... The reasons why the stroker costs so much is because it is done right.
Um, not really. The reason it costs so much is because besides the parts, there is much (highly) skilled labor that goes into it. OTOH, the cost of a supercharger is mostly parts (and of course the engineering behind it), it can be bolted on by almost anyone with basic mechanical competence and can be done in a day. Contrast this with weeks for a stroker job.
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