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Go Back   Chevy and GMC Duramax Diesel Forum > Specialty Forums > Competition
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Competition Discuss Drag Racing, Sled Pulling, and Dyno Event setup, technique, and results.

 
       

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Old 09-04-2006, 03:30 AM   eBay Motors   #21 (permalink)
jon72
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Start turning that wheel speed into ground speed and you'll be flying.I seem to have a 2-3 mph faster ground speed than the auto's.
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Old 09-04-2006, 08:41 AM   eBay Motors   #22 (permalink)
05_LLY
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True iv noticed on some data logs that my wheel speed is at 26-27 mph while the autos are at 21-22mph!!!
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Old 09-06-2006, 12:15 AM   eBay Motors   #23 (permalink)
JOHNBOY
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But are you hooking up? My best pulls all log a wheel speed of 22mph. Both times I was told the sled speed was 19mph. That big wheel speed is a sign of lack of traction to me.
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Old 09-06-2006, 12:20 AM   eBay Motors   #24 (permalink)
JOHNBOY
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Max sled speed is not always where it is at. Dodges usually have high peak speed. They like to use more gear then we do. But here is the biggy we sustain the speed longer due to our wider powerband. You see a lot of Dodges loss speed and drop the turbo. While the Dmax will hold speed and spinout at the end. I have bogged and dropped the turbo but only on real high bit tracks.
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Macs Dual Disk Pulling Clutch, Holley HP150 lift pump and Wix Pre OEM filter, Summit Racing 4" exhaust, K@N FIPK, Autometer Gauges, Westin step bars, Rhinolined bed and rockers, 265 Goodyear Wrangler Silent Armour, Custom traction bars, pulling hitch, 10AN fuel pickup, Lift pump and filter mount.
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Old 09-06-2006, 03:12 AM   eBay Motors   #25 (permalink)
jon72
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Quote:
Originally Posted by JOHNBOY View Post
But are you hooking up? My best pulls all log a wheel speed of 22mph. Both times I was told the sled speed was 19mph. That big wheel speed is a sign of lack of traction to me.
I agree....
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Old 09-06-2006, 03:51 AM   eBay Motors   #26 (permalink)
jon72
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Quote:
Originally Posted by JOHNBOY View Post
Max sled speed is not always where it is at. Dodges usually have high peak speed. They like to use more gear then we do. But here is the biggy we sustain the speed longer due to our wider powerband. You see a lot of Dodges loss speed and drop the turbo. While the Dmax will hold speed and spinout at the end. I have bogged and dropped the turbo but only on real high bit tracks.
I've always thought a faster sled speed was the goal and with that came the distance?.
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Old 09-06-2006, 04:45 AM   eBay Motors   #27 (permalink)
05_LLY
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Not sure what the sled speed was on my last pull but i know watching the video, it was really moving at half track with very little being slun off the tires, but the sled had a real hard droping pan and after that it did just blow the tires off. but i dont expect to win with 265 street tires on?

I have a set on loan form a member that should help me hook up better but it needs to quit raining first!

Later
Caleb
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Old 09-06-2006, 08:44 AM   eBay Motors   #28 (permalink)
JOHNBOY
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Originally Posted by jon72 View Post
I've always thought a faster sled speed was the goal and with that came the distance?.
Yes sort of. If you have are faster than me at 100' but I faster at 200' who will go farther. High early speed is great if you have grunt to hold it. If your loosing rpms at 150'. Your big speed means little.
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Old 09-07-2006, 04:29 AM   eBay Motors   #29 (permalink)
jon72
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I see what you mean.That would be the difference between a Cummins and a Duramax.Have you ever tried pulling in 5th low?I've been very tempted but dont want to try it in front of a couple thousand people.
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Old 09-07-2006, 08:01 AM   eBay Motors   #30 (permalink)
JOHNBOY
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Hero Gear as we like to call it! No I have not. On loose tracks I have run 2nd high. On high bite tracks 4th works great.
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02 GMC Crewcab long bedLB7 ZF6
Alive with EFI Live
Macs Dual Disk Pulling Clutch, Holley HP150 lift pump and Wix Pre OEM filter, Summit Racing 4" exhaust, K@N FIPK, Autometer Gauges, Westin step bars, Rhinolined bed and rockers, 265 Goodyear Wrangler Silent Armour, Custom traction bars, pulling hitch, 10AN fuel pickup, Lift pump and filter mount.
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