Tire Help for Heads-up Manual Transmission Class

Stephen & Horace Johnson · 04-24-2023, 10:17 PM

Quote:

Originally Posted by 1347

why wouldn't you put a 30x9 bias tire the Stick stocker guys run? i know thats why you are asking what to use, but I would think a 30x9 would give a much better contact patch over a 26x10.

28s are the biggest they can run

James Hensler · 04-25-2023, 01:20 PM

I used to run the 28x10.5 Stiff in Renegade. Back then we had to weigh 3000 and made more HP 850 but with a single disk Ram and a adjustable pressure plate I 60 footed 1.25 and ran 9.0’s a DOHC 4.6

I know this isn’t your combo but it’s about as close as you’re going to get here!

Rich osmond · 04-25-2023, 01:37 PM

Thank you, James. This is very helpful and something I will consider. As you know, I will need to balance clutch slip, wheel speed, and rotating weight, so I will probably need to test with a short tire/gear package, vs a tall one. Thanks again.

Jim Caughlin · 04-25-2023, 04:50 PM

Stick to basic 'meat and potatoes' components that have been working for Stock class cars for years, Soft Lock, alum flywheel, G101 and the 10 x 28 should be plenty of tire to get you well into the 9 second range. Run the clutch as loose as you can get ways with and oh yeah, don't use the clutch to shift.

weedburner · 04-25-2023, 06:43 PM

Quote:

Originally Posted by Jim Caughlin

Stick to basic 'meat and potatoes' components that have been working for Stock class cars for years, Soft Lock, alum flywheel, G101 and the 10 x 28 should be plenty of tire to get you well into the 9 second range. Run the clutch as loose as you can get ways with and oh yeah, don't use the clutch to shift.

Coyote Stock is a sealed engine NMRA class that requires a minimum 10" dia single disc diaphragm clutch.

Grant

Rich osmond · 04-25-2023, 11:10 PM

Correct, and a “Diaphragm Pressure Plate assembly is required”.

04-25-2023, 01:20 PM	#2
James Hensler Member Join Date: Apr 2022 Location: Noblesville,In Posts: 108 Likes: 7 Liked 58 Times in 36 Posts	Re: Tire Help for Heads-up Manual Transmission Class I used to run the 28x10.5 Stiff in Renegade. Back then we had to weigh 3000 and made more HP 850 but with a single disk Ram and a adjustable pressure plate I 60 footed 1.25 and ran 9.0’s a DOHC 4.6 I know this isn’t your combo but it’s about as close as you’re going to get here! __________________ SS/AH 328X

04-25-2023, 01:37 PM	#3
Rich osmond Junior Member Join Date: Jan 2016 Posts: 5 Likes: 4 Liked 0 Times in 0 Posts	Re: Tire Help for Heads-up Manual Transmission Class Thank you, James. This is very helpful and something I will consider. As you know, I will need to balance clutch slip, wheel speed, and rotating weight, so I will probably need to test with a short tire/gear package, vs a tall one. Thanks again.

04-25-2023, 04:50 PM	#4
Jim Caughlin Senior Member Join Date: Mar 2002 Location: Woodburn, Or Posts: 685 Likes: 82 Liked 805 Times in 245 Posts	Re: Tire Help for Heads-up Manual Transmission Class Stick to basic 'meat and potatoes' components that have been working for Stock class cars for years, Soft Lock, alum flywheel, G101 and the 10 x 28 should be plenty of tire to get you well into the 9 second range. Run the clutch as loose as you can get ways with and oh yeah, don't use the clutch to shift.

04-25-2023, 11:10 PM	#6
Rich osmond Junior Member Join Date: Jan 2016 Posts: 5 Likes: 4 Liked 0 Times in 0 Posts	Re: Tire Help for Heads-up Manual Transmission Class Correct, and a “Diaphragm Pressure Plate assembly is required”. Last edited by Rich osmond; 04-25-2023 at 11:12 PM.