So close to a 10 second pass last night :(
- Thread starter SRT09
- Start date
King_
Enthusiast
Video or it didn't happen!
cerveza v10
Viper Owner
Sounds like you are not letting go of your clutch..... The motor has
No bog at all... Seems like you or the clutch is slipping too much ..
Lower your stage rpm and try to get the clutch out faster!
Just a thought.....
No bog at all... Seems like you or the clutch is slipping too much ..
Lower your stage rpm and try to get the clutch out faster!
Just a thought.....
What tires? If that's regular Street tires a dr should Definantly help you go 10s.
The launch looked good.
Ill try that I tried to release the clutch fast since im on 3.55's I'll try to lower the Rpm I was on Nitto Dr's and still could only cut a 1.79 60ft I think if I can get the 60ft down to at 1.6 I should be in business !
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cerveza v10
Viper Owner
You have to slip the clutch more with a 3:08 than a 3:55.....
Relax and enjoy!!! It is so nice to see vipers at the track.
You are working very ******* your car, it will pay off soon for sure!
Relax and enjoy!!! It is so nice to see vipers at the track.
You are working very ******* your car, it will pay off soon for sure!
King_
Enthusiast
Very nice!
Do you think lower pressures would help? Also this might sound weird. But 2nd gear burnouts? Get the tires hotter. When I was drag racing my 800 hp Honda it hooked way better with 3rd gear burnouts instead of 2nd. 3rd was geared to do 120ish of I remember right.
Just a suggestion. There will be differences between dr and full Slicks. But it might give you enough to break that last tenth.
Just a suggestion. There will be differences between dr and full Slicks. But it might give you enough to break that last tenth.
Pretty sure the red light is on every shift and my shifts didn't seem to slow to me???
Looked good to me. 60ft is the best way to drop ET.
I honestly thought the shifts seemed fine.
This is what I would do if it were my car:
1) play with tire pressures. I never 1/4 mile raced with DRs but a lot of people that I talked to ran really low pressures, in the mid teens to 20 psi range (not sure if that is ideal on a viper)
2) "faster" burn out. So possibly do 2nd gear burn outs to get the tires hotter and stickier.
I am no expert on drag racing a viper. I have yet to take mine to the track as our local track closed but I'm interested to see if that would help you get your 10 second pass.
3) You can always take weight out of the car. Make sure all the loose stuff is not in the car. Go extreme and pull the passenger seat
Hard to take out the passenger seat when my boy car seat was there as he rode to the track with me I corrected the time for sea level and came up with 10.67@135 so I think better air and a better 60ft and I'm there
I corrected the time for sea level and came up with 10.67@135 so I think better air and a better 60ft and I'm thereVIPER GTSR 91
Enthusiast
My understanding of redline in most cars is you are past the max HP and torque curves and just waisting time and effort? At least for road racing I set my shift light as close to the max HP and torque as possible.
Hard to take out the passenger seat when my boy car seat was there as he rode to the track with me
Nothing against corrections. But I don't live on corrections. To me it either ran out or it didn't. I understand how they work but when world records are set. .. They don't use correction factors. Just my opinion
Oh ya on the boy car seat. I was amazed to see the passenger seat had factory baby seat anchors and tethers
Missed the post with the in-car video. Yes, shifts look great.
345s-bspinnin
Enthusiast
To the OP, those are great runs. The lower '60 foot will come by with better throttle/clutch modulations. For me, I was doing 5,000 rpm clutch slips in order to get low 1.7 60' ft. Its tougher on our 3.07s, but its doable at the expense of a smoking clutch 
Your statement is true only in very small cases where power/torque drop off are significant. Any college mechanical engineering sophomore can solve this torque gearing example. I won't get into the math here, but send me a PM and I can send you some calculations.
Your statement is true only in very small cases where power/torque drop off are significant. Any college mechanical engineering sophomore can solve this torque gearing example. I won't get into the math here, but send me a PM and I can send you some calculations.
Malu59RT
Enthusiast
Run low 20's as far as tire pressure goes. If the car isn't bogging, slip the clutch faster, and if it starts to bog, raise your launch RPM. I've gone 1.75 60' on my 10 second pass, on street tires, and I launched at almost 5k rpm with my stock car. I also did 2nd gear burn outs. You are almost there, keep it up!!
Malu59RT
Enthusiast
Yeah, Invo's with over 20k miles of use. Long thread about it on here, happened back in 2010.
My guess is he slipped the heck out of the clutch to do so.
Malu59RT
Enthusiast
Yep! After every launch, you can see my clutch smoking. My 10.93 pass, I actually spun at the top of 1st gear and short shifted to 2nd.
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