Turbine trim ?
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I`m lookin to order a bigger turbo And need to know what the different Turbine trims mean as far as performance and lag? what one do you think would work best on a stock cube ls1 with a T76 and a 1.13 A/R. I know the A/R is big but top end is more important to me then lag so if it spools decent, like 3500rpm I`ll roll with it. Thanks.
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Originally Posted by Whistler
1.13 AR will hurt your spool time while giving you no benefit up top, especially with a TT kit.
Use a 76MM .96 AR -Q trim
Use a 76MM .96 AR -Q trim
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Friend had a Q-trim with a 1.13 A/R on a 383. It spooled up to 15lbs at around 3000rpm. You would probably be better off to stick with the .96, but go with t-76 GTS. Housing are pretty easy to change (though don't know how access is to the turbo on the kit), and you can pick up a new one for a couple hundred bucks, so you aren't permanently locked into whatever you buy.
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One thing you have to remember is when you change the exhaust housing A/R on a tang turbo it changes the position of the turbo slightly. The difference between O, P, Q, R, and S-trim turbos is the size of the wheel. Each wheel flows more than the previous, going alphabetically. If you're running a single turbo I would run no less than a .96 A/R q-trim turbo.