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 M3 Forum
 E46 M3 (2000-200?)
 TURBO M3
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invisible0624 Member Posts: 7 |
posted 10-06-2001 12:38 AM
  
does anyone know how many horsepowers can M3's engine and tranny handle ?? some people said they can handle over 500horsepowers, but i dont think so .....becuz i am trying to install a T66 or smaller turbo on my 02 M3,(but i am not sure any company or factory making turbo or supercharger for new M3, please let me know if anyone knows it) but i am not sure if M3 is that strong and able to handle that much power! also where can i get a very good and useful sports exchaust system and for 02 M3? ------------------ IP: Logged |
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Frank Administrator Posts: 206 |
posted 10-06-2001 10:26 AM
I think the E46 M3 has the 6spd from the M5 which has around 400hp...I think. You want to put a turbo in the new M3?? I thin there are a couple of tuners that have come out with exhaust for the E46 M3. I dont remember off hand but they are in the links section of the website. IP: Logged |
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Kalik314 Member Posts: 10 |
posted 10-06-2001 04:51 PM
WWW.TurnerMotorsports.com Turner Motorsports has an exhaust ready for the E46 M3 IP: Logged |
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invisible0624 Member Posts: 7 |
posted 10-07-2001 02:13 AM
thank u guys ! but i think E46 is pretty strong ...cuz the inline 6 engine is much more stronger than V6 engine ....so it's no problem to handle 500hps ....and i sitll thinking about if Nos is better than turbo for the engine ....cuz turbocharge hurts engine so bad sometimes ! IP: Logged |
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M3_Buyer Member Posts: 11 |
posted 10-08-2001 09:49 PM
quote: First - inline 6 versus V-6 makes no difference in engine strength by itself. What matters is the strength of the block and what components were used. A V-6 can be built to be stronger than an inline 6, and vice versa. Second - The E46 M3 motor has 11.5 to 1 compression ratio. This is way too high for any kind of forced induction due to massive detonation, unless you want to run 100+ octane race gas all the time. NOS would be the better of the two for the M3 engine due to its cooling properties, however having adequate fuel delivery with NOS is ESSENTIAL. Even one tiny little problem leading to even a split second of a too-lean condition, and good bye M3 motor! I would stay away from NOS and forced induction on the M3, unless you have plenty of money to burn on new M3 engines as they get lunched by detonation. Your better off spending money on exhaust and intake upgrades as they come out. IP: Logged |
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The M Project Member Posts: 6 |
posted 10-11-2001 02:53 AM
Yup, unfortunately the M3 block is pretty much tweaked out as it is, the most you'll see out of this block is around 385hp, give or take a couple horses. That's why I plan on dropping in the GTR V8 at some point if possible, but more likely the M5 V8. Hence the name "The M Project." BTW, multiple companies have produced exhausts for the M3. IP: Logged |
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ian840 Member Posts: 5 |
posted 10-19-2001 01:31 AM
Go to Nowack's webpage at www.m3-tuning.de They get 400hp+ out of the M3, I think 404hp to be exact. This is better and cheaper to do because it is lighter than a v8. Same HP of the M5's v8 in a I6 that revs to 8600rpm in Nowack form...sounds good to me. IP: Logged |
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M3_Buyer Member Posts: 11 |
posted 10-20-2001 08:49 AM
quote: I'm sure its missing the torque though of the M5's V-8. Impressive nonetheless, considering its only a 3.2 liter IP: Logged |
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Q-Ball unregistered |
posted 10-30-2001 05:06 PM
if you want to, you can lower your compression by adding a metal headgasket, a 3mm one would roughly lower it to 9.5:1 and the block is iron and the E36 has been known to handle 600rwhp daily driven, there's been a few guys in FL and NY. There's a guy building a pro-import one had turbo and NOS before he decided to build his tube frame E36. If you need a place to make a custom metal headgasket, it's called gasketworks.com ask for marti...he can make a custom gasket for you. Q-ball IP: Logged |
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invisible0624 Member Posts: 7 |
posted 11-02-2001 11:14 PM
wut about the computer chip ......anyone knows that where i can modify the computer of M3? i wanna reset the program , and able to take off the stock CAT , and not let the engine check light brights ? IP: Logged |
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WA 2 FST Member Posts: 5 |
posted 11-03-2001 12:08 AM
quote: I agree with the thought of a turbo/blower being a no-no on this motor...especially given the 11.5:1 CR. I've been tuning with centrifugal blowers on American V8s for the past 8-9 years. Gotta keep the base CR down if you want the power-adder to be effective. However, a well-thought-out nitrous setup would work. Granted, as stated above, fuel delivery is of paramount importance, but there are plenty of "safety measures" that can be built into a nitrous combination. Setting it up on this particular motor might be a bit cumbersome with the 6 individual throttle bodies, but if done right you could run a small 100hp shot and go from 13.1s/106+mph to 12.3/115-116mph (wheelspin being the only thing that would keep it out of the 11s)...and its there only when you want it. It's not causing any excess drag or wear on the motor in normal driving conditions...which is probably 95+% of the time. Anyone out there set up a small nitrous kit on this engine? IP: Logged |
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invisible0624 Member Posts: 7 |
posted 11-03-2001 03:08 AM
i think Nos is saftier and easier than Turbo and supercharge, but it doesn't adding power as much as Turbo or superchrage does! cuz my friend has a S2000 with 75hps Nos kit, and he says it's no difference! the car doesn't go any faster ....and the Nos brings out of alot of problems ....so turbo will be the best choice for speeders ! IP: Logged |
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ziff Member Posts: 5 |
posted 11-03-2001 10:03 AM
Nitrous is probably not the way to go because of the everlasting issue of fuel delivery to match the introduction of the nitrous oxide gas. Tuning a nitrous system is a fine art and the variation of bottle pressure, bottle temperature, and fuel pressure on an additional fuel line for the nitrous system is too many variables to deal with unless you are setting the car up for race only. Street driven nitrous systems are very typically unreliable. I've been racing for 15 years. I currently run a 332ci v8 with a single large turbo. This is a 1100hp engine. In the past I've tried and seen all the combinations. For a street driven car like the m3, I would start with a 5-6lbs of supercharged boost. Because the M3 uses a mass air meter to contol it's fuel delivery, the computer could easily and safely remap the fuel and timing curve when it senses increased airflow produced by the blower. The mass air sensor would have no idea nitrous was in the motor, therefore the tuning would occur post exhast at the o2 sensors. To bring the A/F mixure in check, you have to introduce a secondary fuel source with the nitrous. The would require additional fuel lines run and fuel selinoids as well as tuning the two. The are many nitrous kits tuned for particular applications. No one makes one for the M3. You could tune one yourself, but the M3 engine is very expensive to fix should you damage a piston or other parts. A centrifical blower with modest boost will produce a 70-100 hp increase and the stock fuel and computer can accomodate the increased air flow with a corresponding increase in fuel to keep the A/F ratio in check. I am concerned with the high compression ratio. That is why 5lbs should be the limit. I agree that using a thicker head gasket would allow higher boost, however, that is a bandaid to a bigger issue. I would prefer to see the pistons replaced with lower compression units instead. Overall, the stock configuration of power, balance, drivability, comfort, handling, and braking is well balanced. I personally would leave the m3 alone and buy a cheap mustang or chevy for making mega power cheaply. My 01 m3 is my daily driver, not my race car. Good luck to all of you. IP: Logged |
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WA 2 FST Member Posts: 5 |
posted 11-03-2001 11:46 AM
invisible, If you're friend's S2000 isn't any faster (even with a small 75hp shot) then its not installed or tuned correctly...period. I'm not trying to be disrespectful, but something is amiss there. Also, in a high CR combination like the one involved here, you can run more nitrous safely than the comparable amount of boost it would take to make equal HP. However, ziff makes some excellent points regarding tuning the beast. He is correct, that there are lots of kits out there for other applications, and setting them up is a much more simple proposition compared to designing your own from scratch. The cost factor involved if you screw up is there as well (but also there if you decide to design your own turbo/blower application). The bottom line is that nitrous works great...but as with anything else, the tune is vital, and may be just too cumbersome in this application to make it _truly_ safe. FWIW, I'm a big fan of centrifugal supercharging. I have two cars with Vortech blowers on them (one is a street car that gets 22mpg on the highway and puts out 615rwhp). BUT...I also know its much easier to keep the pieces together when you're running lower base CR, especially when using pump gas (you never really know what you're getting). That being said, a modest amount of boost (can't imagine more than 6psi) should be pretty flexible and have a decent margin of safety built into it. I still haven't taken the plunge on the purchase of an M3, yet. It's b/w the M3 and a Z06. Neither car will be my daily driver. I'm self-employed and use a truck (F-150 Lightning) as my _everyday_ vehicle. But, if I could figure out a bona-fide way to get 400hp (flywheel) from the M3, that's the car I'd buy! IP: Logged |
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Beau Member Posts: 6 |
posted 11-04-2001 02:29 AM
Quite the opposite should be the result. A car running NOS should be significantly faster for the same amount of horsepower produced, it's a _constant_ addition rather than a measurement at peak. - Beau
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Beau Member Posts: 6 |
posted 11-04-2001 02:40 AM
This can potentially do more harm than good. Ever heard of quench? - Beau
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