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Old Dec 22, 2017 | 12:45 PM
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What kind of trap MPH should a 700 hp C5Z have?
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Old Dec 22, 2017 | 03:00 PM
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I’d say near 140 depending on how well you can get the power down.
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Old Dec 22, 2017 | 05:20 PM
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Crank or wheel?

I've never had a fantastic 60ft, but my car is around 750hp (638rwhp) and I trap 132mph like clockwork.

I agree with RonSSNova if you're talking wheel horsepower.

Last edited by Quickshift_C5; Dec 22, 2017 at 05:21 PM.
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Old Dec 22, 2017 | 08:47 PM
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Car makes 700 wheel, RXT and 26x10.5 MT ET. Hasn't been down the track yet but I was thinking it should be in the 142 area
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Old Dec 23, 2017 | 10:57 AM
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Yep... you're correct.

My car makes ~660rwhp SAE and has run 138-139.
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Old Dec 23, 2017 | 09:22 PM
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Originally Posted by Quickshift_C5
Crank or wheel?

I've never had a fantastic 60ft, but my car is around 750hp (638rwhp) and I trap 132mph like clockwork.

I agree with RonSSNova if you're talking wheel horsepower.
Seems low to me for that kind of power. I Plan on being around 130 with heads/cam/intake making under 500.
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Old Dec 24, 2017 | 10:07 AM
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Keep in mind a few things:

You need a tire to get any type of accurate reading.
Weight and track conditions will play a significant role.
MPH is significantly influenced by driver despite what people think.
PUC will have a much greater impact than peak hp on et and mph on a drag strip.
Clutch type can/will influence mph.

Many other factors play a role too and they all add up to make the difference.

That's why one car with 700whp may trap 130mph and another may trap 150mph.
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Old Dec 24, 2017 | 02:53 PM
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Originally Posted by robz
Keep in mind a few things:

You need a tire to get any type of accurate reading.
Weight and track conditions will play a significant role.
MPH is significantly influenced by driver despite what people think.
PUC will have a much greater impact than peak hp on et and mph on a drag strip.
Clutch type can/will influence mph.

Many other factors play a role too and they all add up to make the difference.

That's why one car with 700whp may trap 130mph and another may trap 150mph.
nailed it!
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Old Dec 24, 2017 | 04:07 PM
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I made 685 to the tire...... left on the foot brake at near 0 boost..


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Old Dec 24, 2017 | 04:31 PM
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Great slip! ^^^^

I can only dream of getting that kind of hook out of mine. Awesome pass!
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Old Dec 24, 2017 | 08:30 PM
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Originally Posted by WA 2 FST
Great slip! ^^^^

I can only dream of getting that kind of hook out of mine. Awesome pass!
Thx, When I can leave on boost and turn the ramp rate up, that bitch is gonna go 70’s all day.
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Old Dec 24, 2017 | 10:15 PM
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Originally Posted by junk c5
Thx, When I can leave on boost and turn the ramp rate up, that bitch is gonna go 70’s all day.
Easily.

Running a stick, I can't leave on boost (haven't been serious enough about it to run a 2-step), so that hurts me a bit.
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Old Dec 24, 2017 | 10:36 PM
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Originally Posted by WA 2 FST
Easily.

Running a stick, I can't leave on boost (haven't been serious enough about it to run a 2-step), so that hurts me a bit.

FLT level VI 4L65E . I’ve got a PTC converter that I can foot brake to 3800 and I had my tuner mess with the tune on the 2 step. I can build a few lbs on a cold tire on the street. I haven’t tried at the track with a sticky tire. I’d be content foot braking 5lbs of boost for me to leave with. I didn’t make it to the track this year with my most recent tune
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Old Dec 25, 2017 | 05:28 PM
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Better/bigger rear brakes will help on the foot brake.
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Old Dec 25, 2017 | 08:35 PM
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Originally Posted by RonSSNova
Better/bigger rear brakes will help on the foot brake.
I added a set of strange single caliper drag brakes. It did help a little but not like I was hoping. There’s not much for brakes for a 16” wheel. I haven’t been to the track yet to see the exact results. Just a little alley testing. I left the factory booster on. I do have the strange manual master but haven’t put it on

Last edited by junk c5; Dec 25, 2017 at 08:37 PM.
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Old Dec 25, 2017 | 08:55 PM
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Discs are tough.
They just don’t have the holding power of good old drum brakes.

Last edited by RonSSNova; Dec 25, 2017 at 08:56 PM.
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Old Dec 25, 2017 | 10:41 PM
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Originally Posted by RonSSNova
Discs are tough.
They just don’t have the holding power of good old drum brakes.
True. I’ve got a Ford 9” under my mustang, 1986, with old school 9” “Big Brakes” that stops at 164mph at 3200 lbs.
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