HRP in the viper

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Old 02-09-2009 | 10:04 AM
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Default HRP in the viper








11.8 @ 118 1.91 60ft on the 20in CCW's

I hit the rev limiter from 1st to 2nd with some wheel spin but I was happy to get into the 11's but was not happy about the trapspeed

I am confused with the mph compared to sealy (127-128) with the 12.0 run and a 2.3 60ft

Maybe hitting the rev limiter slowed down that much momentum?

Someone with more knowledge can chime in, just seems to be a big difference.

4th time down the track and I am really starting to get the feel for this car. No question I need some more seat time I think I can get it deep into the 11's with the 20in.

As soon as I hit that goal I am going to put the Bellengers and the new PCM on!

baby steps!
Old 02-09-2009 | 10:06 AM
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10mph loss seems very weird. I know the wind was blowing pretty hard this weekend, but wasn't it out of the south?

The car looks good with those wheels.
Old 02-09-2009 | 10:10 AM
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What is awkward is I went into 4th right pass the 1/4 mark. which is 130ish

- So I was deep into 3rd gear which I thought is at least 120-125mph redline in 3rd is 128

got me?
Old 02-09-2009 | 10:12 AM
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Originally Posted by G-Z06
What is awkward is I went into 4th right pass the 1/4 mark. which is 130ish

- So I was deep into 3rd gear which I thought is at least 120-125mph redline in 3rd is 128

got me?
The timer might have been off - its happened before.
Old 02-09-2009 | 10:13 AM
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Very possible.
Old 02-09-2009 | 10:25 AM
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car looks good...


wild how you lost 10mph in the traps though
Old 02-09-2009 | 10:38 AM
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car looks good! Almost don't care how fast it is
Old 02-09-2009 | 10:48 AM
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now i wish i would've went instead of disecting my car, oh well i'll be ther either fri. or sun. this week. very nice btw, probably the only car i like with all black wheels.
Old 02-09-2009 | 11:12 AM
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Did all 4 runs have low trap speeds? what about lanes, did the right land or left lane have a slower speed? Scan and post some of your slips if possible. We really don't have enough info to know if the timing equipment was not correct at HRP.

But in my opinion, with a 2.3x sixty at Seally and a 1.91 sixty here at HRP it seems possible to me that the rev limiter and wheel spin from 1st to 2nd might have slowed you down in your mph but since you had such a good launch 4-5 tenths better than Seally that the good launch made up for the 1st-2nd goof and you ended up running a better ET at a slower MPH.
The general rule of thumb is every .1 change in the 60' will be worth .2 seconds ET. Assuming that rule is true, you made up almost a second in the first 60' on the pass in HRP over the pass in Sealy.
Get your 60' down to 1.6-1.7 and run a clean race the down the rest of the track to trap 127-128mph and your looking at very low 11's.
Old 02-09-2009 | 11:54 AM
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Nice going Garett! I'm impressed
I think that maroon camaro beat you though, but we know why!!!
Old 02-09-2009 | 12:59 PM
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Hrm, timers for the lights could have been off. Done that before.
Old 02-09-2009 | 02:40 PM
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Looks good, is that Aarons GT in the back ground?
Old 02-09-2009 | 05:52 PM
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Looks good out there.
Old 02-09-2009 | 05:53 PM
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Nice viper
Old 02-10-2009 | 10:26 AM
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Cutting that much off your 60' without cutting much off your overall ET is why your mph is lower.

The timer could be off, but your MPH is averaged over the last 66' so I wouldn't try to compare where you are as you cross the 1/4 to what your official MPH on the slip is.

Viper looks good.

Next time you go to HRP drive 2 miles down to my house and take me for a ride.
Old 02-10-2009 | 10:34 AM
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Originally Posted by RoAdRaGe912
The timer could be off, but your MPH is averaged over the last 66' so I wouldn't try to compare where you are as you cross the 1/4 to what your official MPH on the slip is.
What the hell are you talking about?
Old 02-10-2009 | 11:11 AM
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Originally Posted by -Ross-
What the hell are you talking about?
I don't think he understand how short of a distance 60' is when you're going 120 mph
Old 02-10-2009 | 11:25 AM
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That is a damn good looking car. I love black cars with black wheels.
Old 02-10-2009 | 02:35 PM
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Originally Posted by -Ross-
What the hell are you talking about?
Your mph on the time slip is averaged over the last 66', not your speed as you cross 1320'.

Originally Posted by 2 SLOW
I don't think he understand how short of a distance 60' is when you're going 120 mph
Seems to me that 60' is the same at 120 mph as it is at 0 mph (discounting relativity). I simply pointed out that there is a discrepancy between instantaneous velocity across the 1/4 and what is averaged over the last 66'.

I also gave the real reason for the lowered trap speed, when most people suggested the timer.
Old 02-10-2009 | 02:50 PM
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Originally Posted by RoAdRaGe912
Seems to me that 60' is the same at 120 mph as it is at 0 mph (discounting relativity). I simply pointed out that there is a discrepancy between instantaneous velocity across the 1/4 and what is averaged over the last 66'.
I was just stating that I doubt the Viper is picking up much speed in the last 3/10s of a second at the end of the run.



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