High compression and turbo ?'s
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High compression and turbo ?'s
Hey guys, I was wanting to see what experience you know of running 8 - 10 psi max on compression ratios above 13:1 compression. Whats the kicker for a turbo vs running a good shot of N2O? It seem like the turbo might be easier vs the nitrous hits?

Tennessee Bullitt- Posts: 496
Join date: 2009-08-25
Location: Ft Knox
Re: High compression and turbo ?'s
street/strip or just race motor?

Northwest outlaw- Posts: 959
Join date: 2009-06-26
Age: 35
Location: Pinehurst Idaho
Re: High compression and turbo ?'s
Street/Strip, Take my motor for example, 13.37:1 on the compression to be exact. Running only 110, 112, 114 or more race gas. If you had 2 of them that were twins of each other, one had 150 shot of N2O and the other was running 6-8 psi on a 72 to a 76 mm turbo. Whats the difference?

Tennessee Bullitt- Posts: 496
Join date: 2009-08-25
Location: Ft Knox
Re: High compression and turbo ?'s
Tennessee Bullitt wrote:Street/Strip, Take my motor for example, 13.37:1 on the compression to be exact. Running only 110, 112, 114 or more race gas. If you had 2 of them that were twins of each other, one had 150 shot of N2O and the other was running 6-8 psi on a 72 to a 76 mm turbo. Whats the difference?
A 150 hp shot of nitrous vs adding a turbo to an aggressive street/strip engine is not an apples to apples comparison. I don't know your build, but adding a turbo to an aggressive (13+:1 cr) street/strip BBF will result in a much larger gain. Also, a BBF will need a lot more than a single 72 - 76 [mm] turbo. Finally, cost between the two is substantially different.
Have a good day!
Michael

96Mustang460cid- Posts: 108
Join date: 2009-07-10
Location: Tulsa, OK
Re: High compression and turbo ?'s
x2 on the single. With the CR so high i would go the NOS road. But if you were in the ball park of 10.1/11.1 i would say e85 and turbos and hold on for the ride.I hope this help with your ?. If not ill see if i can help out more .

Northwest outlaw- Posts: 959
Join date: 2009-06-26
Age: 35
Location: Pinehurst Idaho
Re: High compression and turbo ?'s
Thanks for the info. It was just a wild thought I had. For me I have the idea that later when I get some money for a good after market block I might drop the compression and add a procharger or possibly a turbo. I think with a procharger might be less hassle that trying to fab a turbo up with a non tubed front end. Nothing real crazy but something I can get the big HP #'s and still be more tamed for street driving that a turbo. A F1c or a F2 because I know I won't be lacking to much TQ vs running a 4.6 mod motor with one. I had a F1A and that thing laged bad but at 4,000rpm's it hit like a rocket. I had thought of the roots but it would be to much it seems for what I want. I don't know we will see. Atleast all I need now is the block and new pistons if I go that route.

Tennessee Bullitt- Posts: 496
Join date: 2009-08-25
Location: Ft Knox
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