et street to et slick problem

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et street to et slick problem

Postby badabill » Sat May 10, 2014 9:01 am

ok got car back on track this year for the first time ..with the et street slicks we ran 6.10 in 1/8 on pump gas this week wee put bead lock slicks on and ran 6.24 ..both sets of tires are 32x17.50x15 .....funny thing is we were spinning with the et streets on now were not and the car slowed down WTF lol any ideas...
64 vett 327 11.01 comp, hardened steel crank, wide beam rods,456 smooth cam, 205 double hump heads,with a 5 sped and a 343 posi.
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Re: et street to et slick problem

Postby Memphis » Sat May 10, 2014 10:01 am

badabill wrote:ok got car back on track this year for the first time ..with the et street slicks we ran 6.10 in 1/8 on pump gas this week wee put bead lock slicks on and ran 6.24 ..both sets of tires are 32x17.50x15 .....funny thing is we were spinning with the et streets on now were not and the car slowed down WTF lol any ideas...

Post all the information and split times from the time slips! It's all about wheel speed on the launch you may have to add a pound or two of air to get the 60' to improve... I'll need to see the split times and 60' to tell for sure what's happening. JD
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Re: et street to et slick problem

Postby badabill » Sat May 10, 2014 10:51 am

on the 6.10 run the 60 ft was 1.35....330 ft 3.90 and mph was 115.......on the 6.29 the 60 ft was 1.40....the 330 was 4.01and the mph 109 ..i did gain 30 lbs with the slicks bead locks and tubes added and I'm running 9 psi in the tires...normaly the car is real cosistant or it wouldnt bother me but i would have thought more traction better 30s and et
64 vett 327 11.01 comp, hardened steel crank, wide beam rods,456 smooth cam, 205 double hump heads,with a 5 sped and a 343 posi.
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Re: et street to et slick problem

Postby Memphis » Sat May 10, 2014 1:39 pm

badabill wrote:on the 6.10 run the 60 ft was 1.35....330 ft 3.90 and mph was 115.......on the 6.29 the 60 ft was 1.40....the 330 was 4.01and the mph 109 ..i did gain 30 lbs with the slicks bead locks and tubes added and I'm running 9 psi in the tires...normaly the car is real cosistant or it wouldnt bother me but i would have thought more traction better 30s and et

The bead locks are essentially killing the ability to get the wheel speed moving much like dead hooking kills. I'd start by bumping the pressure up to 10# if it improves start going up 1/2# until it blows the tires off or you can verify the 60' starts to fall off. Also< if the tire is "wadding" up to much it will kill the launch and may not be releasing that energy properly.

Since you changed those tires the chassis tuning starting with the air pressure starts over... ;) Good Luck! JD
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Re: et street to et slick problem

Postby bgblock427 » Sun May 11, 2014 7:54 am

sounds like the slicks are dead hooking, try bumping the air pressure to 11-12 psi. The bead lock is not the problem.
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Re: et street to et slick problem

Postby lowblazin94 » Sun May 11, 2014 6:23 pm

Agreed, dead hooking and killing you off the start.
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Re: et street to et slick problem

Postby badabill » Mon May 12, 2014 9:32 am

thx ill try that this weekend tyvm
64 vett 327 11.01 comp, hardened steel crank, wide beam rods,456 smooth cam, 205 double hump heads,with a 5 sped and a 343 posi.
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Im working on unhooking my battery cables.
 
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