Pontiac - Race The next Level

          
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Old 08-29-2025, 09:44 AM
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VCho455 VCho455 is offline
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Default 16" drag slicks vs 15" drag slicks. Any opinions?

I may have to convert to 16" slicks to clear the rear disc brake set up I'm considering. Anything I should be aware of other than price?
Thanks in advance

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Old 08-29-2025, 06:13 PM
Steve C. Steve C. is offline
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For interest evaluate the two different tire's footprint, which is the actual area of the tire in contact with the ground.
The tire diameter affects its footprint by changing its overall size, but tire width is a more direct influencer of the footprint's contact area.

.

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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/

Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE

Last edited by Steve C.; 08-29-2025 at 06:19 PM.
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Old 08-29-2025, 06:47 PM
Steve C. Steve C. is offline
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Forgot this...

Keep in mind the difference in tire growth between bias ply and radial construction.


.

__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/

Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE
  #4  
Old 08-29-2025, 10:03 PM
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VCho455 VCho455 is offline
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Join Date: Aug 2003
Location: PDX OR
Posts: 539
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To be more specific I was thinking of going from a pair of bias 28 x 10.5 x 15 slicks to the same style tire in 28 x 10. x16 size.

https://www.summitracing.com/parts/HOO-18153

__________________
If it breaks. I didn't want it in the first place.
_____________________________________________
69 GTO \ 72 FIREBIRD \ 1/2 OF A 64 GTO \ 70 JAVELIN \ 52 FORD PU \ 51 GMC PU \ 29 FORD PU \ 85 ALFA ROMEO SPYDER \ A HANDFUL OF ODD DUCATI'S \ 88 S10 LT1 BLAZER & MY DAILY DRIVER 67 SUBURBAN.
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