super chargers and cams????
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Joined: Jan 2003
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From: ny-lindy
Car: 1989 Iroc z hardtop
Engine: peanut LB9
Transmission: slopomatic TH700R4
super chargers and cams????
i'm gonna make a supecharged 305. maybe even a 335. but my problem is i really don't understandwhat to look for in a cam. Whats the differnce between a blower cam and a regular cam of simular specs?
any kind of info or suggestions on cams would are geatly welcomed. thank you in advance.
WyClef
any kind of info or suggestions on cams would are geatly welcomed. thank you in advance.
WyClef
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Joined: Sep 2001
Posts: 968
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From: Montreal\Quebec|Canada
Car: Camaro Z281991 Engine: 5.7L/350 TPI Transmission: TH700R4 ··································· Car: Acura CL 1998
Engine: 3.0L/183
Transmission: 4 spd auto/OD
camshafts with tight lobe seperation angles (LSA)
have increased overlap.
Overlap is a period when both intake and exhaust valves are open.
So if u have a tight LSA, your boost will go outright out the exhaust.
Id say between 112-117 LSA is what U need.
thats my opinion, maybe not 100% accurate, but close i find.
U can gat a 'blower cam' with just means no guess work for U
since the cam has the configuration needed for use with superchargers.
have increased overlap.
Overlap is a period when both intake and exhaust valves are open.
So if u have a tight LSA, your boost will go outright out the exhaust.
Id say between 112-117 LSA is what U need.
thats my opinion, maybe not 100% accurate, but close i find.
U can gat a 'blower cam' with just means no guess work for U
since the cam has the configuration needed for use with superchargers.
Thread Starter
Supreme Member
Joined: Jan 2003
Posts: 1,053
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From: ny-lindy
Car: 1989 Iroc z hardtop
Engine: peanut LB9
Transmission: slopomatic TH700R4
ok i just wanted to know if there was a differnce between the shapes of the lobes or not. and i don't wan to run a +.500 lift in a 335
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From: Cincinnati
Car: 1987 GTA
Engine: PT88 Turbo DART 406
Transmission: th400
Axle/Gears: 9" ford
That all depends on the motor...But usually around 114 LSA...also running MORE lift on the exhaust than the intake...
Like on my 355 I ran like .500 .510 114 LSA Dont remember the duration off of the top of my head...
Like on my 355 I ran like .500 .510 114 LSA Dont remember the duration off of the top of my head...
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