Another Tire Thread

[DarkSide]

Since tires seem to be the topic of discussion as of late, I will ask my question.

After reading the 36's too big for an S4 thread and the 36's/35.5's on 8" wheel thread I have been pretty torn on tire selection.
My car is 2530lbs with a Fortin H pattern 4 speed. Twin turbo LS that I'm still waiting to get back on the dyno but for sake of the question, let's say 600 whp.
Current tire is 33 Blaster #2 on 17-8 Raceline wheel. Going to need tires soon since these are 2005 date stamped. I keep leaning towards the 36's but don't want to be under powered nor do I want to blow stuff up. LOL!
What are your thoughts on running the 36's with my setup?

On that note, I see a ton of "500hp" cars with S4's running 36's and 35.5's but I wonder how much performance is being lost or gained.

STU recommended WHP:
33 #2 500+ hp
36 #1 550-650 hp - #2 650+ hp
35.5 #1 750-900hp - #2 900+ hp

 

[lincster]

I think your weak link is the Fortin Wide Gear.
They don't like a ton of power and bigger tires will be even worse.

I ran the 4 speed for 17 years. Of those 17, I ran a 2600lb car with stock LS1.
Never broke anything, just wore out 2nd gear.
Once I boosted my LS1, I pulled that gear box 3 times in 1 season for different issues.
Enough of that.
I would stick with the 33 Blasters to help with the trans.

Call McMullen to discuss.
He is the local Fortin expert that has seen years and years of different combos with that.