Boost a stock LT1??
Thread Starter
Teching In
Joined: Aug 2010
Posts: 36
Likes: 1
From: Lakeland.FL
Boost a stock LT1?? Just woundering if you can run a twin set up on a mostly stock lt1.I am in the process of rebuilding my motor nothing fancy just freshing up and cam.I can pick up 2 T3/T4 turbo's cheap.just woundering if it will handle 5~7 lb of boost on a stock bottom end?
Last edited by ALH442; Jul 17, 2011 at 08:48 PM.
A lot of rebuilds are a step BACKWARDS from stock.
While I would trust a stock shortblock at that level I wouldn't feel comfortable commenting on your "rebuild" without knowing exactly what you are doing.
While I would trust a stock shortblock at that level I wouldn't feel comfortable commenting on your "rebuild" without knowing exactly what you are doing.
TECH Apprentice
Joined: May 2010
Posts: 333
Likes: 1
From: Arkansas
Man he really is right... Just do it right, don't skip the little speps in a build, pull timing, add some fuel to and you'll be ok also don't hot lap it.
Thread Starter
Teching In
Joined: Aug 2010
Posts: 36
Likes: 1
From: Lakeland.FL
New bearing's seal's,gasket's,valve job, the motor has 120xxx and was not serviced on a regular schedual.So basicly just a freshing up more than rebuild
Just remember any type of power adder be it nitrous or forced induction will amplify what ever weak part is there and find it.....
I would do a leakdown first to see what kind of shape the cylinders are in before boosting. As long as you remain conservative on the boost (levels you mention) as well as a spot on tune you will be fine. Most boosted applications on the stock shortblock grenade because people either get greedy, their tune is off or all the above resulting in ejecting ringlands out the exhaust, and of course the hyper-u pistons are then blamed instead of their own incompetence.
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Thread Starter
Teching In
Joined: Aug 2010
Posts: 36
Likes: 1
From: Lakeland.FL
I would do a leakdown first to see what kind of shape the cylinders are in before boosting. As long as you remain conservative on the boost (levels you mention) as well as a spot on tune you will be fine. Most boosted applications on the stock shortblock grenade because people either get greedy, their tune is off or all the above resulting in ejecting ringlands out the exhaust, and of course the hyper-u pistons are then blamed instead of their own incompetence.
all of everyones input is beeing verry helpful LS1 Tech Stories
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Yup, you will be bashed, I don't know what the kit cost now but back in 97 I purchased the entire kit, cam, springs, Rockers (Which used to be crane) and with bolt ons, stall my car ran 12.6's all day long.I dont know what RWHP that equated to but thats plenty fast for a 16 year old, He surely will fly by those Winged Fart machines...
Why go to all that trouble and cost when you can limit the RPM & Speed via computer tuning. I did that once for a dad that built a car for his son. the potential was there but I limited the rpms and top speed to what he wanted, He said as he grew older and got more experience then he would have me raise the rpms and mph...unless you are talking about lowering the compression for boost which is a total waste on a stock motor..
Seems pointless and costly to supercharge it for only 50-75 HP gain...as mentioned you can get that with a cam and full bolt-ons. However, I did notice one of those low-boost baby powerdyne superchagers from back in the day that only makes 4.5-6 lbs of boost in the classifieds...the stock LT1 should take that with no issues as long as it's tuned good; would also make about 50-75 more RWHP. It is non-intercooled however and not the best supercharger (may need rebuild regularly) but they are as cheap and simple as it gets for boosting a LT1.
'd when I read "may need rebuild regularly." Typical maintenance, right?
