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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > What other mods can i do?



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      10-11-2016, 05:25 PM   #45
Zajac1
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Originally Posted by hassmaschine View Post
they don't stop any better than the tires you have on your car.

yeah, stock wheels are boat anchors though. I think the 162s are like 30lbs each.
So what bmw wheels are the lightest ??
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      10-11-2016, 05:34 PM   #46
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My Apex ARC-8 wheels are 16.5lbs each.
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      10-11-2016, 06:13 PM   #47
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Quote:
Originally Posted by Zajac1 View Post
So what bmw wheels are the lightest ??
none, they're all boat anchors and have been for years. I don't think there's much point in swapping unless you go aftermarket.
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      10-11-2016, 06:38 PM   #48
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These laat 2 post are correct.
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      10-11-2016, 07:02 PM   #49
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Quote:
Originally Posted by Zajac1 View Post
So what bmw wheels are the lightest ??
Personally think Japanese big brands wheels are strong and light. Like Rays, Works etc
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      10-11-2016, 07:27 PM   #50
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Quote:
Originally Posted by Blueeyesredpanda View Post
Personally think Japanese big brands wheels are strong and light. Like Rays, Works etc

Could be. If you find a set as light as mine let me know. I only went with Apex because of the weight savings, plus it only cost me 800+tax for a brand new set.
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      10-12-2016, 05:51 PM   #51
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Could be. If you find a set as light as mine let me know. I only went with Apex because of the weight savings, plus it only cost me 800+tax for a brand new set.
I bought Forgestar and they I light too : )
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      10-12-2016, 08:45 PM   #52
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I bought Forgestar and they I light too : )

The lightest forgestars I could find are 1 pound heavier and twice the price. But they sure are pretty.
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      10-13-2016, 02:26 AM   #53
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I found that changing to non run-flat tyres made a massive improvement to steering, handling and road noise.
Note that tyres weigh around 50% of the wheel weight, more for runflats. My Bridgestone runflats weighed 25lbs each.
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      10-13-2016, 10:03 AM   #54
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Quote:
Originally Posted by scanspeak View Post
I found that changing to non run-flat tyres made a massive improvement to steering, handling and road noise.
Note that tyres weigh around 50% of the wheel weight, more for runflats. My Bridgestone runflats weighed 25lbs each.
Non-RFTs weigh about the same.
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      10-13-2016, 10:29 AM   #55
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Non-RFTs weigh about the same.
Yeah, my 255 tires are about that weight.
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      10-16-2016, 11:48 AM   #56
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My 225/45R17 Michelin AS3s weigh 22lbs compared to 25lbs for the Continental run flats of the same size and tread. Actually made a noticeable difference in acceleration in addition to all the other benefits of ditching the run flats.
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      10-27-2016, 04:43 AM   #57
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If it's been proven that you can extract power with a single stage than a 3si,why spend the extra,install a simple nitrous system and headers. Custom tune for supporting the nos and always be a100 hp button away. Keeps cost down compared to a supercharger.
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      10-27-2016, 07:05 AM   #58
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If it's been proven that you can extract power with a single stage than a 3si,why spend the extra,install a simple nitrous system and headers. Custom tune for supporting the nos and always be a100 hp button away. Keeps cost down compared to a supercharger.
Proven by who?
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      10-27-2016, 07:25 AM   #59
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3lbs of rotational mass is equivalent to less than 1wtq of thrust. I'm impressed at your ability to notice that.
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      10-27-2016, 05:01 PM   #60
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Quote:
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If it's been proven that you can extract power with a single stage than a 3si,why spend the extra,install a simple nitrous system and headers. Custom tune for supporting the nos and always be a100 hp button away. Keeps cost down compared to a supercharger.
Cause not everyone likes nitrous, I'm not one to consider it as cheating, but something just wouldn't feel right if I win a race using it.... not sure why but I guess a lot of people do feel that way as well...
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      10-27-2016, 10:42 PM   #61
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Understandable,most believe no one wants to tune it,and it can be a fun and a safe way to extract more,considering the next step is a supercharger or engine swap. There is alot in interchangeably with the n54,what's cheaper? Nos or a supercharger? Whether you bet him wit tree h a nos kit or supercharger,a win is a win. A 300 kit is more tempting than shelling out 5k for a ess kit,with proper tuning,the nos will win. The turbo is a long way always.The proof is we like power on demand, the supercharger tie linear as treads say,and your limited to a stork motor,people hate it cause they never tried it. 220hp gets boring afterwhilei read one guy was putting down 375 whp,without a proper tune,I bet he could see 400 if he was tuned the correct way
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      10-29-2016, 01:41 AM   #62
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Quote:
Originally Posted by JuniorB View Post
Understandable,most believe no one wants to tune it,and it can be a fun and a safe way to extract more,considering the next step is a supercharger or engine swap. There is alot in interchangeably with the n54,what's cheaper? Nos or a supercharger? Whether you bet him wit tree h a nos kit or supercharger,a win is a win. A 300 kit is more tempting than shelling out 5k for a ess kit,with proper tuning,the nos will win. The turbo is a long way always.The proof is we like power on demand, the supercharger tie linear as treads say,and your limited to a stork motor,people hate it cause they never tried it. 220hp gets boring afterwhilei read one guy was putting down 375 whp,without a proper tune,I bet he could see 400 if he was tuned the correct way
Why not doing the old fashion way for supercharger, eg Toyota SC14, Eaton M90, etc, the SC itself is only $200, then some custom bracket and a tune, can easily get done ~$1.5k or less, if running stock pulley at 4-5psi, don't even need a tune, pretty easy to boost up 80bhp to 120bhp depends on setup
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      10-29-2016, 05:00 AM   #63
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Weight reduction would be my next step. Wheels, tires, battery ...... seats.

Then I would go all out on a brand new ///M steering wheel.
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      10-29-2016, 10:37 AM   #64
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Ya,I've seen tthose superchargers,wicked cheap,only if there was a custom setup option.to mount it
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      10-31-2016, 12:42 PM   #65
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Quote:
Originally Posted by JuniorB View Post
Ya,I've seen tthose superchargers,wicked cheap,only if there was a custom setup option.to mount it
Nobody is going to make an adapter for our car for a positive displacement supercharger. Making something that adapts the bolt pattern and has a flange/holes for the valvetronic motor would be a massive pain in the ass.
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      11-01-2016, 04:31 PM   #66
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Of course it would be, but with today's technology, a 3d printer and a cnc machine,anything is possible. Id still say headers,intake, and exhaust are about you best bet wit h less maintenance. These motors need a drastic change to make decent power.
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