First time with the car. PRC stage 1 heads, Torquer V2, Fast 92, 4.10 gears with 255/50/16 ET streets. Had a blast, learning to launch with drag radials takes some practice. Question tho, previous tuner has limiter set at 6500. Am I giving up any noticeable ET or MPH compared to say shifting at 7k? Really like to get an 11.25 out of this combo. Thanks.

Op u could be giving up some, Dyno it and see where your peak numbers are, and go from there as far as where you think your limiter and shift points should be

I do have a dyno sheet from previous owner. I can find peak numbers for sure but what should I be looking for shift wise? It's a manual vette with 4.10 gears. Thanks!

6800 to 7000k is a good rpm shift point in a manual ls1. Once you shift it really puts you back in the sweet spot. But just have to try and see what the car likes!

99blkfrc99, if you can post a clear pic of the said Dyno sheet we would be happy to help you furher. I checked your other thread on heads and mph, let’s start with improving you seat time and where you optimum shift points should be..

it appears they spun it to 6800 on the dyno but the limiter is at 6500 currently. What ya think? Thanks for the help.

Op IMO raise limiter to 7-7100 and shift that at 6700.. u can see it’s starting to lose power after that, give that combo a try before jumping the gun on mods. .since the limiter was at 6500 what were you shifting at?

Right so you get that limiter raised and run that out a little more before powers shifts and see where your at then should be going into fourth nicely before the traps with w.the 4.10,s

Thanks for the help. I only got 4 runs in that day. 2.4,2.2,2.0,1.8 60 foots with ET's accordingly. Just learning to launch a stick on DR's is interesting. I'll get to the tuner soon to raise my limiter, but I gotta wait until April to run again. Damn winter. 🙂