Tranny doesn't shift at the track.
Tranny doesn't shift at the track. My trans shifts right at 6500-6600 on the street with no apearent problem.(On a 26 inch ET street). When I go to the track on the same tire the trans will sometimes hit the limiter on the 1-2 and 2-3 shift or shift just below the in the 6,800-6,900 range. My rev limiter is set at 7,000 rpm. I thought that the trans might be getting hot at the track. I have a big trans cooler. 32,000 GVW. I've made multiple runs back to back on the street with no problems. What do Ya Think?
Re: Tranny doesn't shift at the track. Could be one of two things. If you allow the tranny to cool down quite a bit between runs, it will shift at a higher rpm then it would fully warmed up on the street. Another thing: if you race in OD on the street and D at the track, the tranny will shift 100-200 rpms higher in D compared to OD.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Re: Tranny doesn't shift at the track. I do usually leave the car in D3 at the track. I'll try leaving it in D4. I thought the trans would shift higher if it was hot. Guess I was wrong. Thanks for the help.
Re: Tranny doesn't shift at the track. My setup makes max power at about 6300 rpm. I want it to shift at about 6700 rpm. I don't like hitting the rev limiter at 7,000 rpm. I drove the car last night. I made some runs on the street. I made about 10 passes with the car. On the first 5 runs or so the trans shifted at 6600-6700 rpm. The last couple run the trans was shifting at about 6800-6900. Kinda werid. I think I might get Jim at Speed Inc. lower the shift points a little. I don't want to spin the short block over 6800 rpm. All runs were in overdrive. Having the car in D4 did seem to help.
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On The Tree
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Re: Tranny doesn't shift at the track. can any one help my problem my trans weather manual shifting or leaving it in in d3 or d4 will stay or hitt rev limiter when racing on the 2-3 shifts why? full fluid and no slipping drives fine untill im racing then will hang up at top end and sometimes hit rev limit my car is all stock, it will sometimes do it when just flooring it and it shifts its self, is this the pcm or do i need a shift kit also its a 98 ta a4 thanks
