Originally Posted by sickem
those times are stupid, congrats. I'm struggling to get below a 2.0x 60' right now FBO with RFTs. Can anyone tell me...are the gear ratios (both tranny and diff) the same in a 6AT 135i as with a 6AT 335i? The 135i only weighs 1-200 lbs less than a 335i, right? Shouldn't make too much difference?
me and the OP both were cutting 1.8x avg 60fts that day. I have a 6at sedan and we both use the same launch technique. 2nd gear to roughly 3K. roll out and then hammer it. my best was 1.76 and 1.79 on street tires. you have to feel your track out. Our track changes daily and even hourly depending on the weather.