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[LS1] valve train upgrade (supercharger in near future)

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Old Oct 30, 2010 | 09:55 PM
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kingston_99's Avatar
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Default [LS1] valve train upgrade (supercharger in near future)

hey people. this is my first post on this forum.

i have an LS1 in my Holden VY SS ute. 6 speed manual. pushing 372HP at the wheels

225 Comp cam, comp cam valves/springs, ally OTR, Difillippo stainless 1 3/4 to 3inch outlet, Difilippo stainless twin 3inch system.

im going to be doing my heads next, all forged internals etc. getting it ready for a Harrop supercharger. my question is, i want to install i new cam, valves and springs that will suit the supercharger and also still sound VERY lumpy.
i have tried looking on a few cam websites and cant choose which one will suit my needs.

if someone could tell me specs etc of links to cams kits, that would be great.

thanks in advanced.
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Old Oct 31, 2010 | 09:04 AM
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You want to stay with a narrow separation angle to avoid "blow through".. Around 118LSA. If it was an LS2, I'd say try a variation of the LS9 cam or maybe even an LSA camshaft. You don't want a lopey idle with forced induction, but a blower spec cam will SCREAM!!!

They are a sponsor here and I'm sure they could work with you if you give them a call (if you can) or shoot them an email and tell them what you are looking to do.
Speed Inc has some custom grinds for blower applications. Such as: 226/234 .598 .599 117 lsa -The LS9 cam is close to this but with a 122* lobe separation angle.
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Old Nov 1, 2010 | 04:39 PM
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Originally Posted by bayer-z28
You want to stay with a narrow separation angle to avoid "blow through.
If Im not mistaking this only applies to turbo vehicles where exhuast back pressure will be higher than intake boost pressure. I may be wrong Im just going off a bad memory.
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Old Nov 1, 2010 | 10:20 PM
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I have read the EPS blower cam sounds really good and makes great power with a blower.
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