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more wheel spin

 
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dam
Newbie


Joined: 30 Jan 2006
Posts: 14
Location: Powell River, BC, Canada
504.58 points



PostPosted: Tue May 23, 2006 10:10 pm    Post subject: more wheel spin Reply with quote

Hey ; I have 31 - 13 mt slicks and I still spin off the line. what do you guys think timing retarders, u know, take abunch of timing out on the line and add it back as you get down the track. I have msd dist. coil and a digital 6 and I cant find what I need, what do you guys think? Dave
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jeep_406
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Joined: 12 Sep 2002
Posts: 1662
Location: Tewksbury, Mass 01876
53158.50 points


1972 Chevrolet Nova

PostPosted: Tue May 23, 2006 10:30 pm    Post subject: Reply with quote

Spinning those big meats makes me wonder if your chassis is working at all. Are you getting any weight transfer? Tell us more about your ride.
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dam
Newbie


Joined: 30 Jan 2006
Posts: 14
Location: Powell River, BC, Canada
504.58 points



PostPosted: Wed May 24, 2006 11:07 pm    Post subject: more wheel spin Reply with quote

hey ; the car is a 67 chevy II bbc, glide with a brake , it runs 10.45 @ 130 mph so on a good track it hooks but 1 track just sucks ,everyone has the slips,thats why I thought pulling some timing out for a few feet might help. I drive this car on the street to so theup isnt right on ether. Dave.
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Aerosmith
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Joined: 25 Dec 2002
Posts: 232
Location: Ohio
7771.70 points



PostPosted: Thu May 25, 2006 8:47 am    Post subject: Reply with quote

Does it always spin at that track or just sometimes? I'm wondering if track prep is the difference. We have well prepped tracks here(Norwalk) and good prepped tracks(National Trails) and so-so prepped(Kil-Kare).
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clay
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Joined: 24 Nov 2002
Posts: 3209
Location: South Carolina
318129.23 points


1972 Chevrolet Nova

PostPosted: Thu May 25, 2006 6:27 pm    Post subject: Reply with quote

I was thinking the Digital 6 has a retard built in. If so, you could put a microswitch on the shifter to retard in low gear only and a toggle switch to defeat it on a good track. Not the ideal setup, but cheap and quick and should help. Clay
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disturbthepeace1
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Joined: 14 Jun 2003
Posts: 303
Location: Stanton, CA
10195.60 points


1965 Volkswagen Beetle

PostPosted: Thu May 25, 2006 9:28 pm    Post subject: Reply with quote

a throttle stop sounds like a more consistant solution to your problem... JMO though....
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Big Dave
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Joined: 04 Dec 2005
Posts: 2662
Location: Tampa Florida
120504.72 points



PostPosted: Sat May 27, 2006 12:03 am    Post subject: Reply with quote

Why first attempt to build a car was a '67 Chevy II 2dr Cpe. with a 427. I beat on that thing for a year and a half fixing every part I broke (replaced half the car). Finally got it hook and it came close to going turtle; backed out of it as the bumper hit the asphalt, and it tore the right front wheel off when it came down. Put a Econoline Ford straight axle under it but it was too squirrelly to enjoy the ride. Pulled the motor and put it in a '70 Nova, much happier.

Learned that it is hard to get traction with 75% of the cars weight in front of the center of gravity. I miss that car now. 1960 pounds with an EconoThrift 194 six when I bought it new. About the same weight as Adams '33 Willys. Just no chassis to work with; by the time I had cut everything out to stuff the motor in. We all learn from our mistakes.


Big Dave
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dam
Newbie


Joined: 30 Jan 2006
Posts: 14
Location: Powell River, BC, Canada
504.58 points



PostPosted: Mon May 29, 2006 11:13 pm    Post subject: still spinning Reply with quote

hey ; I went to the slippery unpreped track on sunday . On a good track I have cut 1.47 60 foots , on this track , first run - 2.1 ,and thats trying to roll the gas on from idle. after 6 runs 1.81 - 60s by takeing 10 deg. of timing out with the msd for the first 30-- 40 ft. 20 deg. would be better I think . Best run 7.15 @ 104 mph in the 1/8th Glad we only run here twice a year but it is a good time , the record here is 156 mph.
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