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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 > Sedan Vs Coupe Performance



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      03-30-2008, 11:29 AM   #1
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Sedan Vs Coupe Performance

I know the coupe is supposed to be a little bit lighter and more rigid. And my car may be too new to tell, (86 miles), but I was just wondering if there are any performance advantages inherent with the sedan. (IE weight over the rear wheels for better launches?) If you look at the C/Driver test, the M3 sedan is the quickest M3 they have tested. And it supposedly weighs quite a bit more than the coupe they tested. (no carbon fiber roof, etc). If you look at the 335i times on drag times, the 3 quickest times are for sedans also. Is this just a coincidence? So far, the sedan seems more stable than my coupe, but maybe its just the new tires. At ultra high speeds the 06 M3 was definitely more stable on uneven surfaces on high speed curves, etc.

On a side note. Last night some guy in a loud, silver Audi Sedan was tormenting me in my new 335i coupe. I couldn't resist. The thing was pretty loud. Had a nice smooth exhaust tone like a motorcycle almost. I figured it was was a 4 cylinder. But it said S4, so maybe it was the 2.7L. It had pretty good power, pulled on me a little, especially top end by a couple of cars. However, I had a passenger, he did not. If I had any kind of a jump at all, it was difficult for him to pull even. We got off at the same off ramp, he rolled down his window. I said I was still breaking in my car. He said his car had 114,000 miles on it and ran 11.8's in the qtr mile. Being that he could barely pull on me on the fwy, I said "no way your car runs 11.8's".."With all your mods, show me a time slip, thats quicker than my slightly modded 335i 12.13 sedan." He then said, "lets race from a stand still." His Quattro against my bone stock new coupe..I said "no thanks." My gosh I wish I was in the my juiced sedan. That would have been awesome. No doubt I would have walked him easily. Over and over and over again. The guy was so cocky, passing, and then swerving in front of me, etc. He thought he owned every car on the road.
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      03-30-2008, 11:35 AM   #2
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The autos are always going to be better ET wise, of which every sedan on there is.
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      03-30-2008, 12:04 PM   #3
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Quote:
Originally Posted by hotrod182 View Post
I know the coupe is supposed to be a little bit lighter and more rigid. And my car may be too new to tell, (86 miles), but I was just wondering if there are any performance advantages inherent with the sedan. (IE weight over the rear wheels for better launches?) If you look at the C/Driver test, the M3 sedan is the quickest M3 they have tested. And it supposedly weighs quite a bit more than the coupe they tested. (no carbon fiber roof, etc). If you look at the 335i times on drag times, the 3 quickest times are for sedans also. Is this just a coincidence? So far, the sedan seems more stable than my coupe, but maybe its just the new tires. At ultra high speeds the 06 M3 was definitely more stable on uneven surfaces on high speed curves, etc.

On a side note. Last night some guy in a loud, silver Audi Sedan was tormenting me in my new 335i coupe. I couldn't resist. The thing was pretty loud. Had a nice smooth exhaust tone like a motorcycle almost. I figured it was was a 4 cylinder. But it said S4, so maybe it was the 2.7L. It had pretty good power, pulled on me a little, especially top end by a couple of cars. However, I had a passenger, he did not. If I had any kind of a jump at all, it was difficult for him to pull even. We got off at the same off ramp, he rolled down his window. I said I was still breaking in my car. He said his car had 114,000 miles on it and ran 11.8's in the qtr mile. Being that he could barely pull on me on the fwy, I said "no way your car runs 11.8's".."With all your mods, show me a time slip, that's quicker than my slightly modded 335i 12.13 sedan." He then said, "lets race from a stand still." His Quattro against my bone stock new coupe..I said "no thanks." My gosh I wish I was in the my juiced sedan. That would have been awesome. No doubt I would have walked him easily. Over and over and over again. The guy was so cocky, passing, and then swerving in front of me, etc. He thought he owned every car on the road.
If the Audi was an S4(my previous car) it could have would have been a V8 if it was an 04 or later model. 2.7tt if it was an earlier model . Actually the 2.7tt can be modded to be faster than the V8 since there are very few performance enhancing mods for the V8. BTW, his AWD would give him a big advantage from a stand still. Tour 335i would have a slight advantage over the V8 in mid range due to the turbo.

BTW, the coupe is SLIGHTLY lighter, has a more rigid chassis. But given equally equipped cars with similar tires, the two cars should give very close drag times . However, you would need to take into consideration that within any group of identically built cars, some will be faster and some will be slower than average. Not sure what the standard deviation would be on the 335i.
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      03-30-2008, 12:12 PM   #4
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Originally Posted by A418t81 View Post
The autos are always going to be better ET wise, of which every sedan on there is.
Ahem...my E90 is a 6-sp.
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      03-30-2008, 02:43 PM   #5
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Quote:
Originally Posted by DrGP View Post
If the Audi was an S4(my previous car) it could have would have been a V8 if it was an 04 or later model. 2.7tt if it was an earlier model . Actually the 2.7tt can be modded to be faster than the V8 since there are very few performance enhancing mods for the V8. BTW, his AWD would give him a big advantage from a stand still. Tour 335i would have a slight advantage over the V8 in mid range due to the turbo.

BTW, the coupe is SLIGHTLY lighter, has a more rigid chassis. But given equally equipped cars with similar tires, the two cars should give very close drag times . However, you would need to take into consideration that within any group of identically built cars, some will be faster and some will be slower than average. Not sure what the standard deviation would be on the 335i.
It definitely wasn't a V8. In fact, it had the exhaust coming out of the left side only I believe. Did any S4s have exhaust coming out of one side? I am thinking maybe it was the four cylinder turbo from the way the thing sounded. It was night, so the S4 badge might have been some other badge he put on it. My GF thought she saw the "S4" emblem on it though. I want a rematch in "my sedan" LOL. I would like to see him produce his 11.8 sec 1/4 mile time slip also.
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      03-30-2008, 02:50 PM   #6
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Quote:
Originally Posted by hotrod182 View Post
I know the coupe is supposed to be a little bit lighter and more rigid. And my car may be too new to tell, (86 miles), but I was just wondering if there are any performance advantages inherent with the sedan. (IE weight over the rear wheels for better launches?) If you look at the C/Driver test, the M3 sedan is the quickest M3 they have tested. And it supposedly weighs quite a bit more than the coupe they tested. (no carbon fiber roof, etc). If you look at the 335i times on drag times, the 3 quickest times are for sedans also. Is this just a coincidence? So far, the sedan seems more stable than my coupe, but maybe its just the new tires. At ultra high speeds the 06 M3 was definitely more stable on uneven surfaces on high speed curves, etc.

On a side note. Last night some guy in a loud, silver Audi Sedan was tormenting me in my new 335i coupe. I couldn't resist. The thing was pretty loud. Had a nice smooth exhaust tone like a motorcycle almost. I figured it was was a 4 cylinder. But it said S4, so maybe it was the 2.7L. It had pretty good power, pulled on me a little, especially top end by a couple of cars. However, I had a passenger, he did not. If I had any kind of a jump at all, it was difficult for him to pull even. We got off at the same off ramp, he rolled down his window. I said I was still breaking in my car. He said his car had 114,000 miles on it and ran 11.8's in the qtr mile. Being that he could barely pull on me on the fwy, I said "no way your car runs 11.8's".."With all your mods, show me a time slip, thats quicker than my slightly modded 335i 12.13 sedan." He then said, "lets race from a stand still." His Quattro against my bone stock new coupe..I said "no thanks." My gosh I wish I was in the my juiced sedan. That would have been awesome. No doubt I would have walked him easily. Over and over and over again. The guy was so cocky, passing, and then swerving in front of me, etc. He thought he owned every car on the road.
Gotta love those kinda people... I doubt it but he may run 11.8s. Ive seen many a drag setup car that can run super ETs but past 1/4 they die. But thats why you build a drag car... for the 1/4. Then you have the flip side like the old Supras. They will cream you on the highway but get em at a drag strip and they will loose badly.

As for the coupe vs sedan 335. The difference aren't big enough to measure IMO. 25-50lbs? Not going to see a real difference.
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      03-30-2008, 03:05 PM   #7
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Quote:
Originally Posted by PresaMat View Post
Gotta love those kinda people... I doubt it but he may run 11.8s. Ive seen many a drag setup car that can run super ETs but past 1/4 they die. But thats why you build a drag car... for the 1/4. Then you have the flip side like the old Supras. They will cream you on the highway but get em at a drag strip and they will loose badly.

As for the coupe vs sedan 335. The difference aren't big enough to measure IMO. 25-50lbs? Not going to see a real difference.
Yup, at Fontana I watched the red Supra run:

13.282 @ 111.57
13.665 @ 118.92
12.760 @ 120.84
12.569 @ 130.71

He would either bog, or spin his huge tires.
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      03-30-2008, 03:52 PM   #8
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lol? running a 12 somthing with a parachute? what was his trap?
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      03-30-2008, 06:29 PM   #9
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lol? running a 12 somthing with a parachute? what was his trap?
the traps are in written in the post
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      03-30-2008, 06:30 PM   #10
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130mph was the high
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      03-30-2008, 06:52 PM   #11
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I know the owner of that Supra. He is a bag of tools. Im pretty sure the owner of that car is some older guy. I have met him at a Cars & Coffee meet almost a year ago. He had a major attitude problem too while he told me he had 1200 RWHP.
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      03-30-2008, 10:05 PM   #12
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Okay, I just put the 19" CSL Reps w/265/30/19"s on my E92 Coupe. Maybe its my imagination, but the car actually feels a little quicker. Or maybe its just breaking in a little more. (I now have over 130 miles on it). Its probably adapting a little more now since my foray with the Audi last night. This combination did not rub at all on the sedan. On the coupe it does rub in the rear over some dips. I guess that means there is definitely less room to work with in the coupe. I would imagine with passengers in the back of the coupe, the problem would be even more pronounced. I guess I have to get the rear wheels with a different offset than in the E46 M3 application. And that damn TPM warning is constantly on now, till I go and buy the sensors.
Just for kicks I put the E92 wheels on the sedan. Its actually not that bad looking, LOL.
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      03-30-2008, 11:29 PM   #13
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nice wheels man, it probably is a little bit faster, the CSL reps weigh A LOT less then the stock rims. I think the 162's were 54 and 56 lbs with tires front and rear respectively
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      03-31-2008, 02:49 AM   #14
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Isn't it is just 22 lbs difference due to the fenders in the coupe being CF?
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      03-31-2008, 03:15 AM   #15
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Plastic dude. Plastic
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      03-31-2008, 11:29 AM   #16
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Quote:
Originally Posted by hotrod182 View Post
It definitely wasn't a V8. In fact, it had the exhaust coming out of the left side only I believe. Did any S4s have exhaust coming out of one side? I am thinking maybe it was the four cylinder turbo from the way the thing sounded. It was night, so the S4 badge might have been some other badge he put on it. My GF thought she saw the "S4" emblem on it though. I want a rematch in "my sedan" LOL. I would like to see him produce his 11.8 sec 1/4 mile time slip also.
Exhaust out of one side means it is a B4 model S4 - 6 cylinder twin turbo (2000-2002). About 250 HP stock. What they had going for them is the ability to easily swap in the European RS4 parts for more HP. There was one featured in Eurotuner with the RS4 parts swap, running about 400 HP. The original B4 RS4 would easily give the R34 Skyline a run for the money, while you race down the 'ring with your tea and crumpets.

His advantage would have been to race from a stop, as the AWD/quattro should give him a better launch. Assuming he knows how to drive stick.
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      03-31-2008, 11:47 AM   #17
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Quote:
Originally Posted by hotrod182 View Post
It definitely wasn't a V8. In fact, it had the exhaust coming out of the left side only I believe. Did any S4s have exhaust coming out of one side? I am thinking maybe it was the four cylinder turbo from the way the thing sounded. It was night, so the S4 badge might have been some other badge he put on it. My GF thought she saw the "S4" emblem on it though. I want a rematch in "my sedan" LOL. I would like to see him produce his 11.8 sec 1/4 mile time slip also.
2.7T engine is six cylinder in VWAG world. And the 2.7T can make a lot of trouble if they have BT setup...watch for sleepers.
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      03-31-2008, 02:58 PM   #18
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its actually the B5 s4 with the 2.7t. They can be very fast with turbo upgrades, last graph I looked at was an s4 with RS6 k04 turbos making 460awhp. Most stage 3 (bigger turboed) s4's do the quarter in the low 12's.
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      03-31-2008, 03:37 PM   #19
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If it was a B5 S4 it could easily be pulling low to high 11's in the 1/4 if it is modded right. You never know with those cars since there are a lot of people building them and go any where from 300whp all the way to 500whp... If it was a B6 or B7 S4 it was a V8 and those dyno around 240whp stock and cant make much more power than that since it is a N/A V8... A stock 335 will take any stock S4 (B5,B6,B7)...
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      03-31-2008, 04:16 PM   #20
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If it was a B5 S4 it could easily be pulling low to high 11's in the 1/4 if it is modded right. You never know with those cars since there are a lot of people building them and go any where from 300whp all the way to 500whp... If it was a B6 or B7 S4 it was a V8 and those dyno around 240whp stock and cant make much more power than that since it is a N/A V8... A stock 335 will take any stock S4 (B5,B6,B7)...
That's right. I always had a hard time keeping the B6/7 straight.
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