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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > DP, Exhaust System, Procede, LSD, Air intake, Intercooler, and Oil Cooler replacement



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      06-30-2007, 09:16 PM   #1
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DP, Exhaust System, Procede, LSD, Air intake, Intercooler, and Oil Cooler replacement

Anyone would like to share their knowledge regarding to this combination. How much would gain from it? In my opinion, It would run pass M3 and going a little faster than a stock Z06. How it is truthly a beast.?? Anyone have any idea?Hey Shv any comment on this one? can your Procede v2 handle this much mod? DP, Exhaust System, Procede, LSD, Air intake, Intercooler, Oil Cooler replacement, and 104 octane mix with 91..
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      06-30-2007, 09:28 PM   #2
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From past experience there is a point of diminishing returns...otherwords If a Down pipe by it self adds 40 HP and a piggyback adds 40. Together you do not usually get 80 HP. The more you do the smaller the gains are.

Of course it depends on how well the parts work together.
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      06-30-2007, 11:04 PM   #3
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Quote:
Originally Posted by LACA335i View Post
Anyone would like to share their knowledge regarding to this combination. How much would gain from it? In my opinion, It would run pass M3 and going a little faster than a stock Z06. How it is truthly a beast.?? Anyone have any idea?Hey Shv any comment on this one? can your Procede v2 handle this much mod? DP, Exhaust System, Procede, LSD, Air intake, Intercooler, Oil Cooler replacement, and 104 octane mix with 91..
To be honest, we are still far from seing something like that. For that matter we don't even know how other components like the cooling system or the transmission or even the engine itself would handle such power.

So far I am confident that just about every member of this forum has done the simple math equation already: 100hp for the Procede V2.0, 15whp for the cat backs, 20-25whp for the dps etc but it is very very early to tell.

Some of the aftermarket parts has been tested individually but not as a bunch. Before we get to excited about the gains lets look at other facts, can the engine, cooling system and transmission handle that much power?

Then after that is taken care off Chapter II comes into the equation: upgraded tires with rims, clutches and rear LSDs

The more power you get the worst the traction it gets, since 99% of the BMW 335i owns a RWD car then this will become a big issue.

Botton line, step by step. We are far away from having the final picture done. Keep in mind that we are still dealing with the issues of stock fuel pumps and no oil coolers in at least 20% of the BMW 335I owners. Until we get pass that issue we will be in no shape of form ready to jump to the next performance level.my .2c

Last edited by Evo8MRto335I; 07-01-2007 at 01:21 AM..
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      06-30-2007, 11:41 PM   #4
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Wheel hop may be another potential problem. You don't want this to happen as it will eventually destroy the transmission. So we may find that some components of the rear suspension need modification to work correctly with the increased HP. There are so-called "launch kits" available for other cars.

With the limits on fuel delivery, stock turbo size, and the stock transmission, I don't see how we could get over, say, 450HP out of the 335i without serious cost. That is, spending over $10K.
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      07-01-2007, 12:23 AM   #5
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Quote:
Originally Posted by LACA335i View Post
In my opinion, It would run pass M3 and going a little faster than a stock Z06.
What?! A stock Z06 weighs only 3130 lbs but has 505 HP. A 335i would have to be making 570 HP to match that. Shouldn't it be obvious that this ain't gonna happen?
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      07-01-2007, 12:25 AM   #6
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well ive got two parts of that mod list left. and an lsd you left out. Ill find out for ya
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      07-01-2007, 12:50 AM   #7
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Originally Posted by zenmaster View Post
Wheel hop may be another potential problem. You don't want this to happen as it will eventually destroy the transmission. So we may find that some components of the rear suspension need modification to work correctly with the increased HP. There are so-called "launch kits" available for other cars.

With the limits on fuel delivery, stock turbo size, and the stock transmission, I don't see how we could get over, say, 450HP out of the 335i without serious cost. That is, spending over $10K.
well a 335 putting down 355 to the wheels makes around 415hp... shiv has posted dyno's with the new V2.0 which made over 376 to the wheels and 370whp is going to give you 439 crank hp....then you figure with downpipes youll gain great power, 100 octane is another good power gain.... so really i would say that for less than 2300 bucks you can get 450hp out of a 335 with stock turbos...

i will let you know as soon as V2.0 is out!
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      07-01-2007, 01:10 AM   #8
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That faster than the Z06 is a little bit of an over statement.... unless you are talking about the C5
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      07-01-2007, 01:29 AM   #9
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Yea I dont see a 335 beating a z06 without SERIOUS modification.
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      07-01-2007, 02:03 AM   #10
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Originally Posted by Ryan(e92) View Post
Yea I dont see a 335 beating a z06 without SERIOUS modification.
how do u define serious modification? I have mention alot of Serious Modication on the 335i.. DP, Exhaust System, Procede, LSD, Air intake, Intercooler, and Oil Cooler .. detail plz?
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      07-01-2007, 03:00 AM   #11
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All of those bolt-on mods exists (IC should be ready as we speak). Put one more existing bolt on mod - turbos and you have more power than Z06. Z06 is a sports car though, so this does not mean you would be faster...
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      07-01-2007, 07:53 AM   #12
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its going to take SERIOUS mods to be faster than a Z06.....even the C5. People have dipped into the 11.8 class with a stock C5 Z06, dont kid yourself. the 335 is not in the same class speed/handling wise as those cars, its too heavy and too luxury based.

But, I would daily drive my 335 over a Z06 anyday. For a weekend car is a different story......Z06's rule.
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      07-01-2007, 09:18 AM   #13
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Originally Posted by CEA 3 View Post
well a 335 putting down 355 to the wheels makes around 415hp... shiv has posted dyno's with the new V2.0 which made over 376 to the wheels and 370whp is going to give you 439 crank hp....then you figure with downpipes youll gain great power, 100 octane is another good power gain.... so really i would say that for less than 2300 bucks you can get 450hp out of a 335 with stock turbos...

i will let you know as soon as V2.0 is out!
Sounds good. You are are probably right about the price to achieve 450hp/400whp. But what I was getting at was with the inherent limits of the various stock powertrain components, there will be a power-making point (ok 470hp) past which, you'll need to spend huge money. This has been discussed before, but the three biggest roadblocks are fuel flow (duty cycle limit of stock injectors and pump), transmission (torque limit), clutch (holding power).

How can fuel-flow rate be increased with the need for specialized fuel pump and specialized piezo injectors? Can the fuel system be upgraded without needing to touch ECU software? Where can one get a transmission upgrade? Clutch upgrade (maybe the flywheel too) should be relatively simple, but who sells one? And the first turbo kits (RD) will be $7600+core.
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      07-01-2007, 11:15 AM   #14
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Quote:
Originally Posted by zenmaster View Post
Sounds good. You are are probably right about the price to achieve 450hp/400whp. But what I was getting at was with the inherent limits of the various stock powertrain components, there will be a power-making point (ok 470hp) past which, you'll need to spend huge money. This has been discussed before, but the three biggest roadblocks are fuel flow (duty cycle limit of stock injectors and pump), transmission (torque limit), clutch (holding power).

How can fuel-flow rate be increased with the need for specialized fuel pump and specialized piezo injectors? Can the fuel system be upgraded without needing to touch ECU software? Where can one get a transmission upgrade? Clutch upgrade (maybe the flywheel too) should be relatively simple, but who sells one? And the first turbo kits (RD) will be $7600+core.
Agreed. I think unless you upgrade some of the other components of the 335i, especially the transmission, brakes, and possibly suspension, you could get into trouble. Meaning, we all know about the probable TQ limits of the 335i's ZF tranny, and just with the PROcede v1.4x, you're more than likely pushing the limit already (especially in the long run).

Hey, potentially more HP and more TQ is great for the 335i (and we all know it's possible with the right mods and $$), but there's a point where you must say to yourself, 'how much can I do without breaking the car?'

With all that said, I'd like to give a to Shiv and the guys at Vishnu Performance, all the tuners that either already came out with or are working on aftermarket exhausts for the 335i, the tuners that are coming out with an LSD for the 335i, and CEA 3 and the guys at Riss Racing for the down pipes for the 335i. It's cool that the 335i is becoming "the" tuner car for 2007 and probably the next few years. :rocks:
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      07-01-2007, 11:36 AM   #15
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Originally Posted by sflgator View Post
With all that said, I'd like to give a to Shiv and the guys at Vishnu Performance, all the tuners that either already came out with or are working on aftermarket exhausts for the 335i, the tuners that are coming out with an LSD for the 335i, and CEA 3 and the guys at Riss Racing for the down pipes for the 335i. It's cool that the 335i is becoming "the" tuner car for 2007 and probably the next few years. :rocks:
It's great to see all of these performance products so early on. It pays big to be first in this market. However, I really think the 135i will turn out to be "the" tuner car starting next year due to lower weight and price. I could be wrong, but I don't see where the 335i has the tuning advantage.

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      07-01-2007, 11:53 AM   #16
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It's great to see all of these performance products so early on. It pays big to be first in this market. However, I really think the 135i will turn out to be "the" tuner car starting next year due to lower weight and price. I could be wrong, but I don't see where the 335i has the tuning advantage.
You may be right about the 135i being a better tuner car due to lower weight, but overall the 335i will probably be more popular (at least here in the U.S.). Also, as small as the 135i is, it still weighs 3,438lbs. (that's only ~ 150lbs. less than the 335i); I would've thought it would be more like 3,200 lbs., and so far, BMW's "official" performance specs are nearly identical to the 335i. (whether that's true or not).
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      07-01-2007, 01:18 PM   #17
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Originally Posted by zenmaster View Post
Sounds good. You are are probably right about the price to achieve 450hp/400whp. But what I was getting at was with the inherent limits of the various stock powertrain components, there will be a power-making point (ok 470hp) past which, you'll need to spend huge money. This has been discussed before, but the three biggest roadblocks are fuel flow (duty cycle limit of stock injectors and pump), transmission (torque limit), clutch (holding power).

How can fuel-flow rate be increased with the need for specialized fuel pump and specialized piezo injectors? Can the fuel system be upgraded without needing to touch ECU software? Where can one get a transmission upgrade? Clutch upgrade (maybe the flywheel too) should be relatively simple, but who sells one? And the first turbo kits (RD) will be $7600+core.
Good Point!
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      07-01-2007, 01:20 PM   #18
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It's cool that the 335i is becoming "the" tuner car for 2007 and probably the next few years. :rocks:

Thats our Goal and, well it looks like its on its way!
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      07-02-2007, 07:06 PM   #19
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You may be right about the 135i being a better tuner car due to lower weight, but overall the 335i will probably be more popular (at least here in the U.S.). Also, as small as the 135i is, it still weighs 3,438lbs. (that's only ~ 150lbs. less than the 335i); I would've thought it would be more like 3,200 lbs., and so far, BMW's "official" performance specs are nearly identical to the 335i. (whether that's true or not).
It will be interesting to see which one is more popular. The 135i should weigh about 3250 lbs, or 300lbs less than the 335i.
July Car and Driver article:
"Packing a 300-hp twin-turbo inline-six, the 135i will weigh 300 fewer pounds than the 335i and will have a better power-to-weight ratio than the last M3. A 135i should be able to spring from 0-to-60 mph in about 4.5 seconds. Six-speed manual and automatic transmissions will be available."
Autoweek:
"Hot new 300 hp 135i resurrects spirit of original M3"
http://www.autoweek.com/apps/pbcs.dl.../70627003/1065
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      07-02-2007, 07:20 PM   #20
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It will be interesting to see which one is more popular. The 135i should weigh about 3250 lbs, or 300lbs less than the 335i.
July Car and Driver article:
"Packing a 300-hp twin-turbo inline-six, the 135i will weigh 300 fewer pounds than the 335i and will have a better power-to-weight ratio than the last M3. A 135i should be able to spring from 0-to-60 mph in about 4.5 seconds. Six-speed manual and automatic transmissions will be available."
Autoweek:
"Hot new 300 hp 135i resurrects spirit of original M3"
http://www.autoweek.com/apps/pbcs.dl.../70627003/1065
Here's a link with the official specs as of 6/30/07; unless they're incorrect, it says the 135i Coupe weighs 3,438 lbs, just 133 lbs. less than the 335i (3,571 lbs.).

http://www.rsportscars.com/eng/cars/bmw_135i.asp
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      07-02-2007, 07:31 PM   #21
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Originally Posted by sflgator View Post
Here's a link with the official specs as of 6/30/07; unless they're incorrect, it says the 135i Coupe weighs 3,438 lbs, just 133 lbs. less than the 335i (3,571 lbs.).

http://www.rsportscars.com/eng/cars/bmw_135i.asp
Damn, thats heavier than I thought it'd be. Still with lighter wheels/tires and exhaust you could bring that down to around 3350. I'd still like to see final production weight, but I guess its going to be closer to that.

One guy recently weighted his coupe and it was 3510 with less than a 1/4 tank. BMWs unladen would be slightly more than 1/4 tank, but still less than the 3582 listed for the auto. I'd be curious to see some more actual weights. It's should be hard to get the 335i coupe down to high 3400s.
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      07-02-2007, 07:35 PM   #22
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Damn, thats heavier than I thought it'd be. Still with lighter wheels/tires and exhaust you could bring that down to around 3350. I'd still like to see final production weight, but I guess its going to be closer to that.

One guy recently weighted his coupe and it was 3510 with less than a 1/4 tank. BMWs unladen would be slightly more than 1/4 tank, but still less than the 3582 listed for the auto. I'd be curious to see some more actual weights. It's should be hard to get the 335i coupe down to high 3400s.
Yeah, me too. I don't think the 135i will outperform the 335i; however, it's going to be a phenomenal bang for your buck in that car segment as it caters to a slightly different crowd. By bye Infiniti G37...the first punch from the 335i and the knockout from the 135i.
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