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      07-13-2013, 02:10 PM   #66
blutattoo
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Drives: 2012 135i
Join Date: Jun 2012
Location: Sacramento

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2012 BMW 135i  [0.00]
Quote:
Originally Posted by jbass524 View Post
Hey blutattoo,

I have a friend who runs a solid 1:53 in his Miata at Sears Point. It's a well built car but it's only mildly faster than a Spec Miata and doesn't have forced induction. I imagine you've run there. If so, what is your best time? This would give us all a good understanding of how hard you drive your 135.

This is important information as if you don't drive it hard enough to limp and continually have sessions and track days cut short then a lot of what you're saying is invalid. Or you may be able to get 2 really fast laps in before having to short shift and come in.

You may have some secret where you can drive it very fast with limited mods for full sessions full days without having the N54/55 gremlins rear their heads. If so, you should share that information as few people have been able to drive their 135/335's hard without significant reliability modifications.

I speak from experience coming from an E92 335.
I've run MRLS twice and my times where in the 1:49 -1:51 range with a fast lap of 1:47 prior to the addition of full race pads and better tires. I'll be there in August with BMWCCA with both full race pads and new tires combine that with more track knowledge and I should be 1:44 maybe 1:43. Monterey never gets that hot so limp mode really shouldn't be an issue even with a stock car. The real issue for long sessions with a 135 at MRLS seems to be the brakes more than anything else. That track eats street pads, even good ones. I believe Randy Pobst went 1:45 in a bone stock 135 around MRLS, so as you can see I have a lot of room to grow. He could probably be sub 1:40 in my car.

Contrary to other peoples experiences with limp mode I don't have that happen very often. The times I did have it happen it was due to the BMS intake I had on the car. I removed it and haven't had an issue since. I ran two days at Thunderhill two weeks ago with day time temps at 110 degrees without having limp mode raise its head. I do have a FMIC and oil coolers so those help tremendously. For comparison in the open group at Thunderhill Spec Miatas run in the 2:11-2:14 range. My 135 will run 2:08 lap after lap without limp mode, brake fade, etc.. The key might be that I only have a slight tune on the motor, guys with other tunes seem to have a lot more issues. Just a thought I'm not sure though.

I run in the open group and I have a bit of experience so that definitely helps keep my times down, but I'm not a pro. If you learn where to push and what the car is doing underneath you, fast times are readily available in a 1 series. Brakes, cooling, tires, and suspension all need to be addressed in order to be fast. For the money I've spent I could have made another car even faster, but the 1 series does double duty pretty well and this is still a car my wife drives to work every now and then so it can't be a total track rat.

Last edited by blutattoo; 07-13-2013 at 02:15 PM..
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