Re: Best tire for 4 speed hemi
[Re: second 70]
#2083730
05/31/16 11:23 PM
05/31/16 11:23 PM
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Joined: Jun 2007
Posts: 209 Mesa, Arizona
6pak2go
enthusiast
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enthusiast
Joined: Jun 2007
Posts: 209
Mesa, Arizona
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I would suggest the bias ply tire. I couldn't get a set of M/T 325R50-15 radials to hook either. Put on a set of 28x13.5x15 M/T ET streets and went 10.90s from dismal 12.00s at 129mph, no other changes. Radials don't seem to recover from the violent hit a clutch car has. You might get the radials to work with an adjustable clutch but I think your tuning window will be very narrow and wear will be high. My 2 cents...
Robert R Mesa, AZ 70 Challenger R/T 440-6 4-Sp Cruiser 67 Barracuda FB 540 4-Sp Strip/Street and Drag Week
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Re: Best tire for 4 speed hemi
[Re: 6pak2go]
#2083738
05/31/16 11:38 PM
05/31/16 11:38 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I would suggest the bias ply tire. I couldn't get a set of M/T 325R50-15 radials to hook either. Put on a set of 28x13.5x15 M/T ET streets and went 10.90s from dismal 12.00s at 129mph, no other changes. Radials don't seem to recover from the violent hit a clutch car has. You might get the radials to work with an adjustable clutch but I think your tuning window will be very narrow and wear will be high. My 2 cents... Seems to be the normal thing with a stick car.. just cant take the shock on the hit.. thats why the bias work better.. on the street you might want the radials
Last edited by MR_P_BODY; 05/31/16 11:39 PM.
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Re: Best tire for 4 speed hemi
[Re: second 70]
#2083912
06/01/16 09:01 AM
06/01/16 09:01 AM
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Joined: Jan 2005
Posts: 4,243 Charlotte, North Carolina
sgcuda
master
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master
Joined: Jan 2005
Posts: 4,243
Charlotte, North Carolina
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You probably need different shock/air pressure settings for strip than street. Be careful how much bite you give the tires. I was breaking transmissions at 3,100 pounds and less than 600 hp with a 30 lb. flywheel, 5,000 rpm launch with too loose a shock setting. Ask Chip (an8sec70cuda) about his tire combo. He mentioned something once about mixing bias ply and radials giving him problems at the track. But I would probably go for a dedicated set of bias slicks for racing.
[image][/image]
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Re: Best tire for 4 speed hemi
[Re: second 70]
#2085105
06/03/16 11:09 AM
06/03/16 11:09 AM
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Joined: Jan 2003
Posts: 13,375 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,375
Marion, South Carolina [><]
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Good choice. The radials won't work well w/ the 4 speed.
No problems at the track w/ any mix of tires I've ever had. My only complaint is w/ bias ply FRONT tires on the street...they follow ruts like train tracks. Doesn't matter what's on the back.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Best tire for 4 speed hemi
[Re: second 70]
#2085203
06/03/16 01:28 PM
06/03/16 01:28 PM
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Joined: Jan 2003
Posts: 13,375 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,375
Marion, South Carolina [><]
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At your weight, I think the tubes would be good. Not to mention they keep the tires from leaking down. I used to run 28x12.5 ET Streets years ago and they'd lose a few lbs. overnight w/o tubes.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Best tire for 4 speed hemi
[Re: second 70]
#2085211
06/03/16 01:44 PM
06/03/16 01:44 PM
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Joined: Jan 2003
Posts: 13,375 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,375
Marion, South Carolina [><]
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OK, so one tube will easily keep you afloat in the pool. But for your car, I think 2 would be better.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Best tire for 4 speed hemi
[Re: second 70]
#2085249
06/03/16 02:41 PM
06/03/16 02:41 PM
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Joined: Jan 2003
Posts: 13,375 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,375
Marion, South Carolina [><]
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It gets better...if you run tubes, you have to either screw the tires to the rim or use beadlocks.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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