Where can I get a cam for my 89 RS???
Registered User
Joined: May 2004
Posts: 139
From: Greenville, SC
Re: Where can I get a cam for my 89 RS???
There are literally hundreds of cam options out there, but stock LT1 cams work pretty well on 305 TBIs 
:
http://thirdgen.org/techbb2/showthre...hreadid=262466
:http://thirdgen.org/techbb2/showthre...hreadid=262466
Last edited by Ben91RS; Nov 9, 2005 at 04:30 PM.
Registered User
Joined: Jan 2005
Posts: 192
Re: Where can I get a cam for my 89 RS???
What mods are done to the car now? Try to keep the cam on the small side if you've still got stock TBI, heads, converter and gears.
When you make a choice get me the part number. I can get comp, lunati, isky, crane, GM and just about any others.
When you make a choice get me the part number. I can get comp, lunati, isky, crane, GM and just about any others.
Registered User
Joined: Jul 2000
Posts: 1,880
From: Norfolk, VA. USA
Re: Where can I get a cam for my 89 RS???
www.jegs.com, www.summitracing.com, www.thunderraccing.com
A nice cam for the 305TBI is the stock LT1 cam from the 93-97 Trans Am/Z28.
Should be able to pick one up for about $50.
A nice cam for the 305TBI is the stock LT1 cam from the 93-97 Trans Am/Z28.
Should be able to pick one up for about $50.
Registered User
Joined: Oct 2004
Posts: 100
From: Littleton, CO
Re: Where can I get a cam for my 89 RS???
[QUOTE=NastyTA]What mods are done to the car now? Try to keep the cam on the small side if you've still got stock TBI, heads, converter and gears. QUOTE]
Good advice. Getting the exhaust upgraded if stock would be a good thing regardless of any other modifications.
Having said that, another cam to consider is the ZZ4. You can get take-off cams from eBay fairly reasonable, used even less.
Good advice. Getting the exhaust upgraded if stock would be a good thing regardless of any other modifications.
Having said that, another cam to consider is the ZZ4. You can get take-off cams from eBay fairly reasonable, used even less.
Registered User
Joined: Feb 2004
Posts: 747
From: Novi, MI
Re: Where can I get a cam for my 89 RS???
i have a cam out of a 89 corvette 350 L98...i'm not sure what the specs are, and not sure if its comparable to a stock LT1, but the engines make around the same horsepower. I had one person interested in it, but he said he sent the check like 2 weeks ago and i still haven't seen it or a response. So i'll sell it for like 40 bucks shipped if you want it..only has 10,000 miles on it, perfect condition....pm me if your interested...
Registered User
Joined: Feb 2005
Posts: 8
Re: Where can I get a cam for my 89 RS???
ZZ4 cam has .474/.510 lift, that is way too much for stock valve springs. You need to stay under .460 lift, and preferably change the valve springs when you change the cam.
An '89 L98 cam is 207/213 with .415/.430 lift. An LT1 cam is about 203/207 with .450/.460 lift, depending on year.
An '89 L98 cam is 207/213 with .415/.430 lift. An LT1 cam is about 203/207 with .450/.460 lift, depending on year.
Registered User
Joined: Feb 2004
Posts: 747
From: Novi, MI
Re: Where can I get a cam for my 89 RS???
what about just getting some roller rockers? that won't increase duration but it'll give ya bit more lift. You can figure it out and maybe you could just get some 1.6 RR's or something...that would be easier than a camshaft swap, unless the motor is already out or something...doesn't get muhc easier than that...
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