Re: Help me hook, please!!
[Re: Sammy]
#2662221
06/04/19 12:02 PM
06/04/19 12:02 PM
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Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
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So. Burlington, Vt.
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If you still have them, I’d start by putting the old tires back on.
Cal Tracs didn’t make my car any quicker, but it was consistently good.
I ran normal rear springs(xhd) with mine, CE shocks on all corners, bottom hole, almost no preload. 1.51 60’ @3670lbs with a 383(typically 1.54-1.57). 9x30 Hoosier radial slicks, 20-21psi.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Help me hook, please!!
[Re: fast68plymouth]
#2662231
06/04/19 12:32 PM
06/04/19 12:32 PM
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Joined: Jan 2005
Posts: 223 California
70Drop
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If you still have them, I’d start by putting the old tires back on.
Cal Tracs didn’t make my car any quicker, but it was consistently good.
I ran normal rear springs(xhd) with mine, CE shocks on all corners, bottom hole, almost no preload. 1.51 60’ @3670lbs with a 383(typically 1.54-1.57). 9x30 Hoosier radial slicks, 20-21psi. Unfortunately, I sold the old tires or I'd definitely put them back on, at least as a test. Those bias tires liked low pressure too (7-8 psi). I've heard the Hoosier radials would work well for my application. Someone said they don't have as stiff a sidewall as the Mickeys, but I don't know if that's true or not.
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Re: Help me hook, please!!
[Re: 70Drop]
#2662277
06/04/19 02:49 PM
06/04/19 02:49 PM
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Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,539
So. Burlington, Vt.
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Just to be clear, I was running radial drag slicks...... not any kind of dot drag radial.
What I ran previously were M/T 29.5x10.5 bias ply drag slicks..... at around 12-13lbs.
Those were with a different motor and no Cal Tracs(3400lb SS springs instead).
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Help me hook, please!!
[Re: b1dartsport]
#2662408
06/04/19 09:59 PM
06/04/19 09:59 PM
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Joined: Jan 2005
Posts: 223 California
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This guide was helpful to me That's really interesting
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Re: Help me hook, please!!
[Re: dvw]
#2662773
06/05/19 06:53 PM
06/05/19 06:53 PM
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Joined: Jan 2005
Posts: 223 California
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Are you saying the Calvert shocks are -7 clicks from full tight or full loose? If they're-7 from full tight they're too loose. Guaranteed the front is too loose. As stated here the air pressure is way to low. Doug 7 clicks from full loose. I think they can go up to 9, which would be full tight, if I understand correctly
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Re: Help me hook, please!!
[Re: BradH]
#2662913
06/06/19 01:41 AM
06/06/19 01:41 AM
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Joined: Jan 2005
Posts: 223 California
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I'm not patient enough to read what everyone else has stated above, but if you haven't figured it out already... radials can require a very different chassis setup than bias-plies.
Things I found critical getting my car to launch straight and stay hooked up: 1. Needed to lower my front ride height and cut down my upper control arm bumpers to get the 5+" free travel from static height; before that it would hook, then top out the front suspension and unload the rear tires 2. Only required about 1/3 turn additional pre-load on the passenger side to get it to go straight 3. My shocks are the OLD Ranchos that have 5 damping adjustments and mine are on 4 (one from stiffest)... and I'll probably need to upgrade to a decent DA in the future 4. Tire pressure... even 1/2 psi too low and my 275/60R15s would squish the sidewalls too much off the line; on skinny 8" rims they needed 17.5 psi to work OK and I've yet to try 'em out on the new 10" rims 5. Don't stage your car at such a high RPM that you're torqueing up the suspension; bias-plies can be a crutch for that, but radials need the pitch rotation to stick 6. Marginal tracks and radials don't get along well This is very useful info, Brad. I really appreciate it. Thanks to everyone
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