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07-31-2011
Hey guys. Building a L67 for my 02 LeSabre. How much boost do u normally get from a 3.2 MPS? Will be running ported and polished heads, ported LIM, Ported and polished blower, colder plugs, colder stat, full headers, no cat, free flowing catback. Thanks!
07-31-2011
Depends on how restrictive your engine is.
07-31-2011
OOOOokk... How much boost does the stock 3.8 pulley produce?
07-31-2011
bone stock, 6-9psi
07-31-2011
on your setup you will prob go down to 4-6psi on stock pulley. 3.2 would put you down at 9-12 easily -- Better think about cam, rockers, or IC
07-31-2011
Thats what i was thinking! I was gonna use the ZZP VS Cam and maybe some 1.7 ratio rockers...Originally Posted by Nixon
07-31-2011
if going both, good call.
If going with just rockers, I'd say go for the 1.9 rockers vs 1.7's.
VS cam should complement your setup very nicely.
07-31-2011
Sweet. I wasnt sure if i could even use rockers with my cam, since i thought the rockers did the same thing as the cam... I also have a set of LS3 yellow behive valve springs from my buddys 2010 camaro that according to zzp would help too.
07-31-2011
basically just more lift combining rockers and cam.
07-31-2011
Ok... well the yellow LS3 springs are rated at max .570 lift, and the vs can with the 1.6rockers is rated at max .507. So i think the rockers with that cam, plus those springs should be a nice combo....
08-01-2011
Make sure you take into account if the valve guides have been milled down to accept more lift. I'm pretty sure unmilled guides won't allow .570"
08-01-2011
.515 is the limit unless you have modded retainers and shorter valve seals.
08-01-2011
Good point, Thank you.
08-01-2011
dont waste your money on the 1.7s for a 7 whp gain. that's a lot of money to dump on some rollers for that. if you want to go higher lift just start with a bigger cam.
08-01-2011
Yeah. I think what I may do is just run the VS cam with some other mods and call it a day... I dont wanna get too radical and possably compromise the drivability of the car so... I think I am just gonna run the VS with my LS3 springs and retainers and call it a day. :-)
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