How much boost can I run with my TT setup???
Im currently Running 13psi in my twin turbo 99 c5, its currently making 722whp and Im wanting to go ahead and get closer to 900hp, My engine is a ls2 bored to a 408 stroker with the Lq9 heads, it is studded and torqued to around 90ft lbs, So my queston is how much boost could I safely run before I have to worry about lifting the heads, Im hoping to be able to atleast get 18psi safely. Im also spraying meth. And my CR should be around 9:1.
Mods- 408ci stroker / 4340 eagle crank, Eagle H beam rods, JE custom turbo pistons, Reverse split turbo cam, RSI twin walbro 255 fuel system 82# injectors HPP twin turbo kit w/ prescision billet wheel 62's Twin nozzle methanol Injection Ls6 intake w/ stock throttle body |
What gaskets are you using? Heck, even with the stock GM, with those head studs, you should have no problems with 18 psi.
If you are running the LS9 gasket...you will be able to handle more than that! |
I honestly cannot remember what brand gaskets im using, All i know is that they are steal gaskets. Maybe cometic?
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You are probably not going to have issues with 18psi. Detonation is what usually lifts the heads under 1000rwhp imo unless the heads have some thin spots.
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Originally Posted by user_name
(Post 1583777258)
You are probably not going to have issues with 18psi. Detonation is what usually lifts the heads under 1000rwhp imo unless the heads have some thin spots.
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Originally Posted by Y2KRoadster
(Post 1583777667)
Thin spots? As in, if they have been milled down and they were milled too much?
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Originally Posted by Y2KRoadster
(Post 1583777667)
Thin spots? As in, if they have been milled down and they were milled too much?
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Originally Posted by user_name
(Post 1583777705)
That will do it, but also just the way they are cast. Some heads, such as ls3's, have some thinner spots on the deck and don't clamp as well.
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I've run 26psi on 4 bolt heads with 5/8 deck, and 9.25 compression. ARP studs at about 80 ft-lb. Stock GM MLS LS1 gaskets. No water pushed. :thumbs:
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How much power did you make with 26psi?
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1K at the wheels
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