How much HP can the 5L TPI handle?
05-06-2006, 01:08 PM
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How much HP can the 5L TPI handle?
Been looking at the stage 2 intercooled D1SC Procharger kit. I was going to do heads but i can always do that later. How much power can the 5L handle? Will running 10 Psi be pushing the stock bottom end?
05-06-2006, 03:28 PM
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Car: 89 Camaro IROC-Z
Engine: Intercooled Twin Turbo LQ4
Transmission: Tremec TKO 600
I think 10psi will be fairly safe on the stock bottom end with a good tune. I would consider the pistons as the weak link, as the cast pistons can break if they are exposed to detonation. I'm a big advocate of seeing how far the stock stuff can go. Some people like to build everything right away, which is fine if you have the money. But a 305 isn't worht anything, so why not push it until it breaks? I bet you could run 10psi for a long time before it gives you trouble as long as you watch your AFRs and keep and open ear for detonation. Premium fuel and colder plugs will be a must.
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