If the car is properly built and has quality parts on it, I have zero issue tuning nearly every car that comes through here to at least 30 psi on pump gas, this includes DSM's, EVO's and GTR's. You'll also find I have a clean record concerning any cars blowing up being driven like this daily. The parts combination is critical to pulling this off however.
When I get a car in here with junk on it, it's no possible. Fuel throughout the country also varies, I've been able to pull it off on some cars running 91 octane from out west and others I can't get close on.
I've actually run as much as 40 psi on 93 octane on some huge builds we did in the EVO's, 42R turbo etc. I feel there is a trade off in turbo size and ET's at some point when it comes to pump gas.
I know for an absolute fact there have been a few of the two and three letter companies out there that have attempted to break into the 8's on 7.50, E85/race gas capable GTR's and have not been able to do it. Nick's GTR that we built here we ran 9.04 @ about 154 mph on pump gas over a year ago. A bunch of people popped out of the wood work down playing the accomplishment and said "just wait, just wait, just wait" they had a year and we were still waiting, figured we'd just finish the task. Anyway, Nick's car was tougher to do this on than my own car with the stock turbofolds. There are reasons for this comparing logs and data.
I'm not sure if we are going to run the car on pump gas again. Nick and I are discussing it and I think we may bring it out on slicks and actually push it a big this time. I think it will run 8.40-8.50's with the slicks and actually trying to lean on it. Remember, I was driving this around and on the 90+ mile poker run in the rain the day before. We left it just like that, diluted the fuel even further, never touched the fuel in the tune and drove it to the track too. This was a full interior, full exhaust, DOT Street tire set up.
BR160 package, stock turbofolds, firstname.lastname@example.org mph, E80 fuel.
BR160 package, stock turbofolds, email@example.com mph, 93 octane.
Standing 1/2 mile 199.29 mph
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