ANYONE,I need some shift point help!!!!
Thread Starter
Joined: Nov 2001
Posts: 7,303
Likes: 4
From: Delray Beach, Fl.
ANYONE,I need some shift point help!!!! I set my shifts using edit
I had 28 in slicks and 4.56 gears at the time.
Now I went to 4.10 and 26in slicks
I know my speedo and part throttle shifts will be off but how bad will my WOT shifts be off.
I'm going to correct it friday but was gonna race the car a couple times before I correct it.
Will I shift too early or hurt the trans by doing this?
Should I wait til I correct the shifts,speedo,
part throttles before racing the car?
JS
I had 28 in slicks and 4.56 gears at the time.
Now I went to 4.10 and 26in slicks
I know my speedo and part throttle shifts will be off but how bad will my WOT shifts be off.
I'm going to correct it friday but was gonna race the car a couple times before I correct it.
Will I shift too early or hurt the trans by doing this?
Should I wait til I correct the shifts,speedo,
part throttles before racing the car?
JS
Re: ANYONE,I need some shift point help!!!! JS,
Your WOT shifts may not be too far off. If anything, you may be short-shifting a little bit. As far as your pcm and tranny know, you're still running the 4.56 gears and taller tires. With less gear (and a slightly shorter tire) your rpms won't climb as fast, that's why I suspect that your shift points will be a little lower in the rpm range. You should be OK for some shakedown runs though.
Your WOT shifts may not be too far off. If anything, you may be short-shifting a little bit. As far as your pcm and tranny know, you're still running the 4.56 gears and taller tires. With less gear (and a slightly shorter tire) your rpms won't climb as fast, that's why I suspect that your shift points will be a little lower in the rpm range. You should be OK for some shakedown runs though.
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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.
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2023 Corvette 3LT Z51 soon to be modified.
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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.
Thread Starter
Joined: Nov 2001
Posts: 7,303
Likes: 4
From: Delray Beach, Fl.
Re: ANYONE,I need some shift point help!!!! Dave wins a cookie <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Terry,
I mean this in a nice way----->SHUT UP <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
JS
Terry,
I mean this in a nice way----->SHUT UP <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
JS
TECH Enthusiast
Joined: Nov 2001
Posts: 699
Likes: 0
From: Maryland
Re: ANYONE,I need some shift point help!!!! JS, I think I understand now. You're trying to run the new tire with the old program. I thought at first you were off after re-programming with Edit.....
