In 1973 at Indy, some of the cars with that engine much have had 1200 hp on board during qualifying.Дonohue's 917/30 that year had 1100 and more hp too but with twice as much capacity and thrre times as much cylinders.ДЄ pioneering hallmark engine if it comes to turbocharged machinery: the Drake-Offy 159. That 2.65 liter four then produced more than 1400 bhp! On alcohol fuel but without intercooler or sophisiticated engine management etc.that made the 1986 F1 engines so powerful.

Hardly a sophisticated engine ad all but rugged, durable and fairly reliable, Dan Gurney once had one on the dyno and something went wrong with the popoff valve. I never found out how much boost they ran on exactly but another, high boost engine that `liked` the pressure was the old turbo-Offy at Indy. If so, then these were very crippled horses.ДЄnd there isn't much about the BRM V16's I believe in other than the negative tales about it and the fact that it has an engine noise that's worth to risk your eardrums. Yes, but they also claimed some 550 hp or thereabout. Not a turbo engine but I once read that the BRM V16 1.5 l. On race fuel 35psi on the bigger units going any higher is pointeless since you will just be heating the air more, not flowing more. If you have a high static CR and have 'wild' cams you can also go pretty high. They weren't the most powerfull turbo's though, cause they still had to work on 1.5L motors so they were fairly small, Turbonetcis have a Y2K unit that makes 2000hp on a petrol engine, some Big V8 run 2 of them 4000hp? Bob Norwood's team built a 4.2L 4 cylinder Funny car that ran 2 turbo's at around 60psi as well making 5000hp with top fuel.ДЄs for OE road cars, manufacturers don't like lag, so the general thinking is to put a small turbo on, this forces them to run mild cams, low stat CR's etc etc so generally a OE turbo system end up around 7-10psi maybe a bit more on some.ДЄs for a aftermarket turbo system, around 20-25psi on pump fuel, if you go low with the static CR(8:1) and have a decent motor to begin with and a good tuner, 30psi might just be possible. Thats the highest I have heard, Top Fuelers do around 60PSI If I remember correctly.

I will need to double check but the F1 cars did go to 58-73 psi.

What is turbo boost engine