Redline Help?

newtegkid

Frozen Pineapple
Hey all I'm just wondering what a safe redline would be on a boosted stock internal gsr motor would be. I'm about to purchase a 99 LS with a GSR swap and I want to know what RPM is safe to redline at.
 

Theasian

New Member
engines factory redline as long as the turbo is properly picked for the engine and you dont choak the turbo out.
 

newtegkid

Frozen Pineapple
ok its supposedly pushing 4lbs of boost. so I think thats not too bad to shift at redline right?
 

Theasian

New Member
4lbs of boost is nothing. Guys boost stock internal Type R on 5-7 lbs A GSR will do well with 7-12 lbs and I would go to rev limiter just rev line but when you tune you will really know where you start to drop off power and should shift. Thing you have to worry about is pre detonation (fuel exploding before piston reaches TDC)
 


newtegkid

Frozen Pineapple
is there anyway I could prevent that from happening I know this could be bad news for the gaskets and such
 

Theasian

New Member
Just proper tuning and higher octane fuel really. Any tuner will know about how to prevent things like that. When you run to lean combustion temps increase and thats when you get pinging from pre detonation.

On a low boost build from say 7-10lbs you wont really have any issues unless its a insainly hot day out.
 

newtegkid

Frozen Pineapple
alright thanks a lot man you helped a lot. just in my area there's a shix ton of ricers rolling around and if I make this deal with this car I'll have one of the only clean tegs.
 


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