That's what I ran for Rockymountain Raceweek this last fall. I ran at five different tracks and definitely never had any issues, of course the car was turned way down to about 800whp to run the 10.0 index class.
I've ran the following and had success with them all.
325/50R15 ET-R
315/60R15 ET Pro
275/60R15 ET Pro
For a 15x9.33 I would probably run a 275/60R15 ET Pro personally.
Try dropping pressure some. Mickey Thompson recommends 14-18 psi.
The feathering like that is from regular street driving, just gripping uneven surface. If you plan to get aggressive with the car, a good burnout will clear them up and make them sticky again. Just realize doing this all the...
You can make over a 1000whp with the gen2 whipple still on a 6-rib. I'm on a 3.00 pulley and close to it if not over. Add the 20% lower and a 10 rib setup, you're in the 1200-1400whp range
i usually stick to 5-7 on compression and then 10-11 on rebound, but depends on the track, if it's sticky, I'll keep bumping it up, if I get some spin, i drop compression down quite a bit.
I’d be interested to see how it does as well. Plenty of people still on a stock converter on the 8’s. Just curious if the 3.55’s will make you shift to 7th at the top end.
The reason they don't whine as much is efficiency. Whine is a byproduct of restriction. The average user doesn't spin a whipple fast enough to get into a lot of restriction.
That being said, Foster makes a whine mod that taps into the airbox if you want the old school blower whine from a...
1.3 on the track, but I usually drop to a 275 for track stuff so it will fit in a class. The bigger tire will probably only hurt the 60ft on a well prepped track. I run the bigger tires on the street and can usually manage a 1.6/1.7 or so without getting serious about prep
Never an issue on the track, but on the street it's still a challenge with 1000whp.
I have ran up to a 315/60R15 ET Pro and have a weight bar that helps