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02-21-2013, 04:26 AM | #1 |
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GRAND-AM 128i Build Thread
It is a cross post, but I thought 128 family would be happy to see what can happen to a 128
http://forums.bimmerforums.com/forum....php?t=1955577 ali.
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02-21-2013, 10:39 AM | #2 |
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Certainly wouldn't mind some insights from them as to what they have done to the car enginewise.
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02-21-2013, 10:41 AM | #3 |
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Engine is a Dinan package. They are not allowed to do much on it. Improve reliability with a better radiator and oil cooler and rebuild the engine up to the maximum tolerances as rules allow. That's what I have been told by them.
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02-21-2013, 10:59 AM | #4 |
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I want those Rotors
Any idea where to get them from, or at least slats that look like that? Looks like they are using solid Subframe bushes
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff "The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is |
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02-21-2013, 11:02 AM | #5 |
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Not sure. I know that calipers wise they are allowed to run 330 calipers, and 330 transmission because they are beefier, but not sure if they are actually running them.
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02-21-2013, 11:47 AM | #7 |
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i spy m3 front control arms, at least the lower arm (what we wrongly call the wishbone)
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff "The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is |
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02-21-2013, 02:14 PM | #8 | |
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02-22-2013, 06:12 AM | #9 |
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larger, free flowing pipe typically removes the low end torque, and increases high end power, which you'd want on a racecar.
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02-24-2013, 10:35 AM | #10 | ||
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Guys, sorry it took me so long to post over here. I'll try to update this thread with some pictures if I'm allowed to, the account is new so I may need a certain post count. The build has been completed and the car is being loaded and off to Texas today. I was able to grab this pic yesterday of the vinyl being finished and about to be put on the scale pad.
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If you guys have any questions at all, feel free to ask or send me an e-mail and I'll respond as quickly as I can. Joey joey.atterbury86@gmail.com |
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02-24-2013, 11:31 AM | #11 |
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what a great link! Thanks! definitely going to watch grand am this season.
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2010 128i manual, sport package, performance exhaust, Vorshlag camber plates, Bilstein B6 struts/shocks, 245/40/17 ZIII square on et 40 with rolled rear fenders.
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02-24-2013, 01:43 PM | #12 | |
Vrooom :)
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02-24-2013, 03:01 PM | #13 |
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That is awesome. Glad to see some 128i love.
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02-24-2013, 09:03 PM | #14 | |
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Its nice that alot of the modifications ( brakes, exhaust, m3 parts) are what we are all slowly doing to the 128i's here If you can explain to us how the oil cooler is attached to the car. I've read that the n54 335i oil filter housing can be used and any n54 oil cooler set up. I'll email you in a few days regarding the rotors. I did discover that the 130i used 330i rotors with the 128i caliper, so I hope this confirms what i found.
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff "The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is Last edited by andrey_gta; 02-24-2013 at 09:10 PM.. |
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02-25-2013, 02:05 PM | #15 | |
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02-26-2013, 12:45 AM | #16 |
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Looking good. Post as much as you can here, we would love to see what you are doing.
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02-26-2013, 10:55 AM | #17 | |
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Might be beneficial for you guys as well. And, if you're going off book (non standard BMW setup or aftermarket), best to match the DSC coding to the closest BMW bias. How to calculate bias here: http://www.m3forum.net/m3forum/showthread.php?t=412927 example spreadsheet: http://www.m3forum.net/m3forum/showp...86&postcount=2
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02-26-2013, 09:20 PM | #18 |
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Seeing as there is a dealer recode for the BMW Performance(repainted 135i) BBK, I have no doubt that it is the same.
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02-27-2013, 12:33 AM | #19 |
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You guys are over thinking it. Also don't forget this car has Bosch Motorsport ECU. Everything is free for all.
330 calipers will not change braking bias as BBKs would.
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02-27-2013, 05:41 AM | #20 | |
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As in... more clamping force = altered bias larger pads = altered bias And, to the contrary, a well engineered BBK either shouldn't change the bias or should change it for the (experimentally tested by the BBK manufacturer) better. Either way, coding the car to know whats going on (or as close to that as possible) makes the entire system work better.
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02-27-2013, 06:58 AM | #21 | |
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Last edited by Evice; 02-27-2013 at 07:07 AM.. |
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02-27-2013, 08:31 AM | #22 |
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Larger pads don't change bias, just wear rate and heat capacity, surface area has no effect on the amount of friction force
Similarly changing the master will have no effect on bias as the ratio of front/rear piston sizes will still be the same, the master will only effect pedal travel/effort.
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