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First time at the track with the FRC

Old 10-08-2018, 08:40 AM
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Default First time at the track with the FRC



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.
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Old 10-08-2018, 08:53 AM
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I'd be shifting more like 6500-6700. If the limiter is at 6500 then you're probably shifting more like 6200-6300. I think you might be giving up a little
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Old 10-14-2018, 11:23 PM
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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
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Old 10-15-2018, 09:06 AM
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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!
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Old 10-15-2018, 09:16 AM
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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!
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Old 12-21-2018, 08:32 AM
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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..


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Old 12-21-2018, 05:52 PM
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it appears they spun it to 6800 on the dyno but the limiter is at 6500 currently. What ya think? Thanks for the help.
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Old 12-21-2018, 09:36 PM
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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?

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Old 12-21-2018, 10:18 PM
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As soon as the needle past 6k I would shift. I never hit the limiter in any of my runs so probably 6200 or 6300.
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Old 12-21-2018, 10:29 PM
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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
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Old 12-21-2018, 10:46 PM
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Get a shift light, shift at 6900.
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Old 12-22-2018, 01:06 AM
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I agree with the guys. Spin that thing a bit more & it should like it. Great job man! Def more room for improvement on getting the 60' down a bit more.
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Old 12-22-2018, 07:43 AM
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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. 🙂
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