Quote:
Originally Posted by wnta1ss
Sorry, I saw 2023 10spd, post did not mention it was a 1LE. That means 2.85 rear instead of 2.77, however, it also means even more weight than a base SS (elsd plus larger front brakes). The LT1 is lighter than a regular SS by 66lbs according to GM, not sure how much compared to the SS/1LE, perhaps 80~100?
The reason that I focused on mph was because it should show power to weight. Ignoring for a moment that the SS/1LE mph was helped by the tune, and it would have been a little lower on mph with the locked tcm in my experience.
Also, it's not just these 2 cars that convinced me of the locked tcm issue. Multiple members have done bolt-on LT1s with the tcm still locked, and their ETs have been a little off relative to the mph IMO. Same thing that I had when my tcm was still locked. Now someone unlocks/tunes their A10 and it is quite noticeably quicker than a locked tcm, just like I had experienced with the A8.
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I looked it up and a 2SS 1LE stock curb weight is 142LBS heavier (1SS 1LE 7LBS lighter than 2SS) than the LT1. They appear to have roughly the same weight taken out. So yeah, that definitely means something also. 142LBS in my old LS1 car was worth about .2 in the 1/4 at 3400-3450 race weight.
One thing is for sure, I'll be able to test it out on my personal car after a tune
