On my 89 RS (LO3, T-5), I have a K&N 14x3 open element and will have 1 5/8 TES headers, Catco cat, and Edelbrock cat-back...what's a good cam for my car? Dumb question...does gas mileage decrease when cam lift increases? I think so...in that case, I have a rather frequent 1200 mile commute, so gas mileage is a pretty big deal with me...what cam would be a decent compromise between torque and mileage? This car is my daily driver, but I enjoy the occasional green-light race at WOT as much as the next guy...anyway, since the peanut cam is pretty much the weakest part of the LO3, what cam brings it to life? Thanks, fellas...

------------------
'89 RS LO3- 140,000 miles
14x3 K&N Open Element
Ram Heavy Duty clutch (yes, I think it's great)
Dual .50 caliber machine guns just under ground effects

Coming very soon:
Edelbrock TES (Jet-hot coated)
Catco cat
Edelbrock 3" Cat-back
KYB shocks
Edelbrock Strut Tower Brace
South Side Machine subframe connectors

When your buddy reaches for a 10-pound sledge and says "I think we're gonna have to modify the floor pan, okay?" the answer is NO.

 

i would suggest getting an intake first, or at least at the same time. the stock manifold is just as big a stumbling block as the cam. comp cams, crane, and lunati all have good grinds for our cars. just keep the lift on the mild side(less than about .460 gross) and the lobe seperation at 112 to 114 and you should be ok. the duration is all up to you, everybody seems to have a little different spin on that.

lata
tim

------------------
91 Camaro RS-LO3,Auto.
14.301 @ 94.39mph
The car is going street strip for next season. 13's here i come!!!!!
Edlebrock TES Headers, Cat Eliminator Pipe, Borla Adjustable Cat Back,Marche Pulleys, HyperTech Chip,Transgo Shift Kit,B&M Convertor(2000stall),Steve Spohn Rear Rig( all rod ends), Poly Front Bushings,Ported TB, 350 Injectors, Edlebrock Performer TBI Intake, Performer Heads, 1.6 Roller Tipped Rockers
http://www.mycar.net/mafb/registry/detail.cfm?id=299

 

i think a real good compromise drop in cam would be an LT1 or L98 cam and thats cheap
or something along those lines

gas mileage decreases more with greater duration not lift

 

Pablo, I know the block is machined for it, but is the peanut cam acually a hydraulic roller?? I've heard several different stories on this, but I KNOW you know. Did GM actually make a 390something lift roller cam?!?

------------------
82 Z28 350, Ported #882 Heads, Performer RPM cam and intake, hedman headers,650 Demon carb,
Trans: Turbo 350 w/ 4000 stall -- Rearend 7.5 w/ Richmond 4.10's, Auburn Minispool
Best ET: 12.52@107.2
Future plans: Dart headed, Roller cammed 383 in early '01


89 RS, L03 305, Hypertech Chip,cat delete, Dynomax exhaust,K&N open element Filter,160 stat, MSD coil --Trans:700R4 Corvette Servo -- Rearend: 7.5 GM 3.42 w/ posi-lock
New Best ET: 15.03@92.7
http://www.bassettracing.cz28.com

 

Yes sir it is

and its quite pathetic such that you can tell with your bare eyes that its a crappy cam (if you have any other decent cam next to it)