If there is any videos, I have not seen them, just word of mouth. DPI is pretty secretive of a lot of his stuff as he does put a lot of time and investment into them, he's not going to give away all his secrets lol.
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Don't know what Josh does, but high-output PRV engines are possible. The highest I've ever heard of was over 900 bhp peak on a twin turbo.
http://www.ultimatecarpage.com/car/5...8-Peugeot.html
Agreed. Just search John Lane PRV. Here's a video of a Volvo 240 that he modified ...
https://m.youtube.com/watch?v=rz_VDwgLemU
I have not doubt about the PRV, but I'd like to see a 500 ft/lb launch using the stock transmission case.
Boost is solenoid controlled. Off the line and through the initial momentum shock she is dialed back heavily. As long as you stay away from 5th you are ok.