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Re: BMW 135i vs BMW M3 E92
1:16.1 at Hokenheim! This ECU upgrade is not even an aggresive one. What does M3 do at Hockenheim?
http://www.sportauto-online.de/test_U_technik/vergleichstest/hxcms_article_514582_14469.hbs
http://www.sportauto-online.de/test_U_technik/vergleichstest/hxcms_article_514582_14469.hbs
Re: BMW 135i vs BMW M3 E92
The 135i and 335i are great for autobahn blasting and with a chip are very fast in a straight line. The M3 is much faster on a track.
http://www.fastestlaps.com/index.php?page_id=compare&car1=458da72e81532&car2=46f388b437911
http://www.fastestlaps.com/index.php?page_id=compare&car1=473d6e85e5770&car2=46f388b437911
http://www.fastestlaps.com/index.php?page_id=compare&car1=458da72e81532&car2=46f388b437911
http://www.fastestlaps.com/index.php?page_id=compare&car1=473d6e85e5770&car2=46f388b437911
Re: BMW 135i vs BMW M3 E92
As an owner of a 135i, I can tell you that the 135i's main weakness is not the engine, but the softly sprung suspension that is designed to understeer (a lot actually), lousy RFT, and the lack of LSD. I have already chipped my car and add a set of free flowing downpipes. I have a set of KW clubsport suspension coming along with a set of wider wheels up front. Then I am putting in a LSD. Deciding between Quaife and Drexler at the moment. When I am done with it, I would dare say it will be as quick if not faster than a M3, for a lot less money!
Re: BMW 135i vs BMW M3 E92
Quote:
WAY said:
As an owner of a 135i, I can tell you that the 135i's main weakness is not the engine, but the softly sprung suspension that is designed to understeer (a lot actually), lousy RFT, and the lack of LSD. I have already chipped my car and add a set of free flowing downpipes. I have a set of KW clubsport suspension coming along with a set of wider wheels up front. Then I am putting in a LSD. Deciding between Quaife and Drexler at the moment. When I am done with it, I would dare say it will be as quick if not faster than a M3, for less money!
The consensus from USA owners seems to be that to achieve similar track times in a 135i as an M3 costs about the same in mods to the 135i as it would to buy an M3. And then you have no warranty in the 135i and no resale value for the mods.
If you just want straight line speed the 135i and 335i can equal or surpass an M3 for a less money. For a track car it is better to start with something designed for the track.
I am considering a 335i as a DD as my new commute is on an unrestricted autobahn with light traffic. But I would not bother with suspension and other upgrades as the stock car can handle autobahn bends adequately. Maybe just a chip and exhaust.
Re: BMW 135i vs BMW M3 E92
That may apply to the USA owners where car prices are so low, but not to me. Why? Because a 135i cost $72k and a M3 cost $163k. $91k is a lot of money for mods! lol. Mods cost the same whether in US or here, so I will end up spending $20k on mods which will make my car M3 quick.
Re: BMW 135i vs BMW M3 E92
Quote:
WAY said:
That may apply to the USA owners where car prices are so low, but not to me. Why? Because a 135i cost $72k and a M3 cost $163k. $91k is a lot of money for mods! lol. Mods cost the same whether in US or here, so I will end up spending $20k on mods which will make my car M3 quick.
Get a larger oil cooler, a Quaife differential from the UK, turboback exhaust, a front-mount IC and finally an ECU tune. 450 reliable PS. A nice suspension setup and perhaps a Brembo big brake kit will round it out nicely. A true M3 (and C63) killer for much less cash.
Re: BMW 135i vs BMW M3 E92
Quote:
WAY said:
That may apply to the USA owners where car prices are so low, but not to me. Why? Because a 135i cost $72k and a M3 cost $163k. $91k is a lot of money for mods! lol. Mods cost the same whether in US or here, so I will end up spending $20k on mods which will make my car M3 quick.
At those prices modding does make sense. Have fun!
Can you set some lap times and straight line times before and after modding?
Re: BMW 135i vs BMW M3 E92
Quote:
WAY said:
Everything you mentioned has been planned for except for the Brembo (already comes with 6 pot Brembo but Brembo has developed a BBK).
From what I understand the stock Brembos are useless on the track. BMW does offer a reasonably-priced performance brake kit for it, so perhaps that's better than standard. However, I'd still prefer monioblock Brembos if it were my own car to mod.
Re: BMW 135i vs BMW M3 E92
Quote:
AUM said:Quote:
WAY said:
That may apply to the USA owners where car prices are so low, but not to me. Why? Because a 135i cost $72k and a M3 cost $163k. $91k is a lot of money for mods! lol. Mods cost the same whether in US or here, so I will end up spending $20k on mods which will make my car M3 quick.
At those prices modding does make sense. Have fun!
Can you set some lap times and straight line times before and after modding?
No straightline times, but I have dyno figures to show before and after so far. And also track times. Once I have more data I will let you guys know. Next track day is 7th Sept (3rd one with the car). First track day was standard car and did 1.29.6 as the fastest time. Second track day with catless DP I did 1.28.7. Now I have a chip in there I will be keen to see the difference. In terms of dyno numbers, stock was 183kw atw, with DP was 192kw, and with a chip as well brings it to 240kw atw. Power wise the car is now a monster.
Re: BMW 135i vs BMW M3 E92
Quote:
WAY said:Quote:
AUM said:Quote:
WAY said:
That may apply to the USA owners where car prices are so low, but not to me. Why? Because a 135i cost $72k and a M3 cost $163k. $91k is a lot of money for mods! lol. Mods cost the same whether in US or here, so I will end up spending $20k on mods which will make my car M3 quick.
At those prices modding does make sense. Have fun!
Can you set some lap times and straight line times before and after modding?
No straightline times, but I have dyno figures to show before and after so far. And also track times. Once I have more data I will let you guys know. Next track day is 7th Sept (3rd one with the car). First track day was standard car and did 1.29.6 as the fastest time. Second track day with catless DP I did 1.28.7. Now I have a chip in there I will be keen to see the difference. In terms of dyno numbers, stock was 183kw atw, with DP was 192kw, and with a chip as well brings it to 240kw atw. Power wise the car is now a monster.
Catted or catless DPs?
Re: BMW 135i vs BMW M3 E92
Quote:
Crash said:Quote:
WAY said:
Everything you mentioned has been planned for except for the Brembo (already comes with 6 pot Brembo but Brembo has developed a BBK).
From what I understand the stock Brembos are useless on the track. BMW does offer a reasonably-priced performance brake kit for it, so perhaps that's better than standard. However, I'd still prefer monioblock Brembos if it were my own car to mod.
No, the BMW performance brakes has an identical caliper to the standard car (but painted yellow), with slotted and drilled rotors. It doesn't improve the performance unfortunately.
The problem with the standard brake is not it's braking ability, far from it. It bites hard and stops the car really well. However it only last about 3 laps. I have changed the fluid to Motul RBF600 and some semi-track pads, and it has improved the ability to run many more laps. Stainless steel braided brake lines is next, and race pads when somebody develops them. I am tempted with the Brembo BBK, but it cost about $3.5k (just for the fronts) which is a lot given the marginal improvement you are going to get.
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