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Thread: Cory's new numbers

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Posts: 81-90 of 96
2009-07-21 21:13:57
#81
Originally Posted by snickers
On our turbo cars launching at about 7000rpm on a 2 step we will see about 8-10psi boost by itself. usually I will preload the clutch ( twin disk) to load the motor and it will build to about 20-22psi when launching.

We do the same with our NA cars. You should b able to preload the car at a high RPM at say 7500rpm and with it at the 2 step limiter the engine should make enough power so that the revs dont drop. it will just load the drivetrain and motor up more but the RPMs will still be the same. I think you arent loading it enough so when you let the clutch out all the way, there is still too much of an increase in HP too fast so the drive train gets shocked.

If you have real drag slicks, you should be able to preload the car enough to actually start to wrinkle the tires a lot so that everyone watching can see.



i totally agree. like i was saying im not pre loading it hard enough. i guess it just takes some practice to get it right. im loading it enough to where it would pull me forward with out the e brake but im going to go even harder next time, enough to get the car to squat a little.

im just going to sit at the light till i get it where it feels right and go, im not even going to pay attention to the rt or the lights till i get this right.
2009-07-21 21:15:19
#82
Originally Posted by snickers
On our turbo cars launching at about 7000rpm on a 2 step we will see about 8-10psi boost by itself. usually I will preload the clutch ( twin disk) to load the motor and it will build to about 20-22psi when launching.

We do the same with our NA cars. You should b able to preload the car at a high RPM at say 7500rpm and with it at the 2 step limiter the engine should make enough power so that the revs dont drop. it will just load the drivetrain and motor up more but the RPMs will still be the same. I think you arent loading it enough so when you let the clutch out all the way, there is still too much of an increase in HP too fast so the drive train gets shocked.

If you have real drag slicks, you should be able to preload the car enough to actually start to wrinkle the tires a lot so that everyone watching can see.

i just wish i could have you drive the damn thing so i could see it run mid 12s lol
2009-09-22 01:07:44
#83
went back to the track last weekend. bogging like crazy but still managed some decent times. 13.1@106 1.9 60ft. but like i said bogged real bad, ive got the vids. its pretty sad, the car almost came to a stop lol. i ran a few 107mphs too
2009-09-22 01:33:38
#84
Were you trying to lower your launch rpm to try and keep the axles from snapping, is that why you bogged?
2009-09-22 02:39:09
#85
Originally Posted by cory
went back to the track last weekend. bogging like crazy but still managed some decent times. 13.1@106 1.9 60ft. but like i said bogged real bad, ive got the vids. its pretty sad, the car almost came to a stop lol. i ran a few 107mphs too


When did it bog? at launch? 13.1 is great man Congrats
Is that with 22 or 23 slicks?
2009-09-22 02:42:01
#86
That is some good mph.
2009-09-22 04:33:57
#87
more info please cory.....was this car stripped much. what size tyres....wheres th vid
2009-09-22 16:07:22
#88
Originally Posted by THOR
more info please cory.....was this car stripped much. what size tyres....wheres th vid


There's a few vids floating around. Looks good Cory. At least you hooked and laid it down without snapping an axle. Its a very fast VE.
2009-09-23 02:03:13
#89
Originally Posted by jer_760
Were you trying to lower your launch rpm to try and keep the axles from snapping, is that why you bogged?


no, i was launching at 7700 i think. the track sucked early in the morning so i kept dropping the psi in the tires then when the track warmed up it was too much and i was bogging.. i kinda think maybe its hooking more now too cause im preloading it good.

Originally Posted by macakin
When did it bog? at launch? 13.1 is great man Congrats
Is that with 22 or 23 slicks?


just bogging off the line. 22in slick im hitting 9k right at the line and 23s im at around 8.6ish which is right where my car peaks.
2009-09-23 02:08:38
#90
its that a vzr exhaust j\w ?
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