[Kibwe Walker]

Jack also went 10's with 15g's with minimal mods+nitrous. He even had the stock DP and catback

The only thing more impressive than Jacks Times is Ray Pampena running 11 flat at 120 with 15g's without nitrous. I mean talk about your freak runs. All other times in that area have traps of 8-10 mph faster.

Still scratching my head over that one. As far as I know that car was stock weight with minimal mods and a hacked stock MAS, go figure.

As far as 13g's are concerned, I don't even need back to back, I am looking for a single dyno, anywhere on the planet where someone made 4xx to the wheels with 13g's and simple bolt ons. Just one as 13g's have been around for 10+ years while 13t's have been around for 3-4 years.

Great drivers aside 13t's and other 15g class turbos can and do make 4xx with minimal mods even at lower boost numbers. I mean the record for 13t's is 472 and that was running 22 psi on a stock engine. 20-22 psi is all it takes for 450ish WHP out of a 15g class setup and bolt ons (IC, FP, inj's, exhaust). 16-18 psi lands you in the 400-440 area based on other supporting mods.