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26" tire 3.73 rpm speeds

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Old 03-10-2015, 01:08 PM
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Default 26" tire 3.73 rpm speeds

I just picked up a set of Mickey Thompson 26x10.5" tires for the LS1 and will be running them this season on a stock motor, 3.73 gear and Yank SS3600 stalled car.

I am curious to know what other guys with a similar setup are turning RPM wise.

- 3.73 gears
- Yank SS3600 stall
- 4L60E transmission

I know where I roughtly sit using a gear calculator, but that doesn't account for converter slip. I want to make sure I am not over revving the stock engine.

I am shooting for an 11 second pass, so I am thinking traps will be in the range of 115-118mph.

Just looking to see what other guys are turning rpm / mph wise through the traps with similar setups.
Old 03-10-2015, 02:30 PM
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Unless you have a good bit of weight off of her and full bolt ons I don't see those mphs being achieved with just those 3 mods above so with that, is there anymore done to the car than just listed? Wish I could help my the trap rpm though, I haven't made it out yet with 3.70s and 26" tire.
Old 03-10-2015, 02:32 PM
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My wife runs that setup with a 4000 SS converter and I run that with 3.89 gears, you will be fine.
Old 03-10-2015, 03:09 PM
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Originally Posted by Firebirdmuscle
Unless you have a good bit of weight off of her and full bolt ons I don't see those mphs being achieved with just those 3 mods above so with that, is there anymore done to the car than just listed? Wish I could help my the trap rpm though, I haven't made it out yet with 3.70s and 26" tire.
Motor/drivestrain: SLP lid, 1 7/8th TSP LT headers, ORY, Corsa catback, Ford 8.8 rear end with 3.73 gears, SS3600 stall, stock LS6 intake manifold.

Suspension: Qa1's, SFCs, chassies mount torque arm, aluminum D/S.

I think that covers it. Esentially a bolt on/ stalled / geared car.
Old 03-10-2015, 03:54 PM
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Originally Posted by LETZRIDE
Motor/drivestrain: SLP lid, 1 7/8th TSP LT headers, ORY, Corsa catback, Ford 8.8 rear end with 3.73 gears, SS3600 stall, stock LS6 intake manifold.

Suspension: Qa1's, SFCs, chassies mount torque arm, aluminum D/S.

I think that covers it. Esentially a bolt on/ stalled / geared car.
That is essentially the same mods as my wifes's car and she has been 12.23. Although my car went 11.98 with the same mods but that was in very good air.118 trap is pretty high for a bolt on car.
Old 03-10-2015, 04:05 PM
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Originally Posted by nj02z
That is essentially the same mods as my wifes's car and she has been 12.23. Although my car went 11.98 with the same mods but that was in very good air.118 trap is pretty high for a bolt on car.
What were you turning going through the traps?

I should of rephrased the 115-118. I would be very suprised if I hit 118, actually I doubt I'll trap higher than 115, but trying to leave some leeway for the fact that I won't be coming off the throttle right away if that makes sense...
Old 03-10-2015, 04:15 PM
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Her car 5800 my car 6450 ( with cam)
Old 03-10-2015, 06:38 PM
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With my LT1, 3.70 gears, and a 4L60 and a 3600 RevMax converter my car trapped at 103 right at 5600-5700 in third gear. I was limited since my car was untuned, so I was working with the stock rev limiter. I know the LS1 rev limiter is higher than the LT1, so I would think you'll be just fine with a 26" tire.
Old 03-10-2015, 08:39 PM
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Alright, that is what I was looking to hear. Thanks!
Old 03-10-2015, 08:57 PM
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With a 26" tire, 3.73s and stock shift points your 3rd gear will get you to about 125 mph. So if your shooting for mid 11's you are good
Old 03-10-2015, 09:00 PM
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I also have 3.73's, yank 3600 and 26" drag radials
Ran 12.40@110 with plenty of room
Old 03-10-2015, 09:10 PM
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Originally Posted by 98CayenneT/A
With a 26" tire, 3.73s and stock shift points your 3rd gear will get you to about 125 mph. So if your shooting for mid 11's you are good
Mine goes through at 6500 at about 118. Converter slip is the unknown but yeah 125-130 is all your gonna get with about a high 6 or 7k redline.
Old 03-10-2015, 09:12 PM
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U should be in the 115 range with the mods mentioned. My Bolton car did 113 with 3.42's and stock stall @ 800' Da
Old 03-10-2015, 09:51 PM
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Originally Posted by 01ssreda4
Mine goes through at 6500 at about 118. Converter slip is the unknown but yeah 125-130 is all your gonna get with about a high 6 or 7k redline.
If I remember correct I think at 6100 rpm's I'm at 126mph
With my yank ss3600
Old 03-10-2015, 10:03 PM
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sweet, good to hear from more than one source.

I definitely do not want to be turning high 6k rpms right now. I'm not cammed and I don't have the valvetrain to support it. I'll float a valve for sure. Saving the higher revs for when I accomplish this goal first and then move on to cam only.



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