On a 92 firebird, would the A/C system have to be purged, or is there enough room to get the new cam in without having to have the A/C system flushed...
?

 

Also, Is 109 lobe sep. too low? I can get a cam that is 196/206 and .431/.451 but it has a 109 lobe sep. The guy says its a new LT1 cam with a hardened fuel pump lobe on it...


would this work, or should I just go to advanced auto parts and pick up a diff. cam..?

 

people have just moved the AC stuff aside without decharging it.

------------------
-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

To be installed eventually far far far into the future: Yours if the price is right and I don't have to ship :
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

 

I have done the LT1 cam swap in my car and the AC system does not have to be messed with. Just be carfull when lifting the condenser.

------------------
One Tight Teal green 91 RS (my first car
All Rustangs suck!!!!
5.0 TBI with Auto trans
Z-28 wheels
K&n with dual snorkel intake
Tx Smog Pump Delete option
Rapid Fire plugs with Accel ignition wires,coil,cap and rotor
Flowtech headers with flowmaster and Half way cutout
B&M shift kit with trans cooler and hurst hotshift fulid
Hypertech thermomaster chip
96 LT1 cam
All the free TBI mods

 

Hey, Z, what did you notice from the LT1 cam installation? Did you change anything (lifters, etc). Most people I know just changed the timing chain.

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1992 Camaro RS (Auto) 5.0L TBI
-
Performance mods
NOS (125 HP shot)
Dynomax cat-back exhaust
Hedman headers
K & N open element/ X-Stream lid
MSD 6A ignition
LT1 camshaft
Soon to be installed:
Edelbrock intake manifold
3.42 rear axle
B & M 2400 RPM stall torque converter
Transgo shift kit
Moroso Blue Max plug wires
Torquer heads

Audio
Sony Xplod CDX-M610 head unit
Pioneer 2-way 4x6 front speakers
Pioneer 3-way 6x9 rear speakers
12 inch Pioneer VCCS PRO subwoofer
QLogic sealed box
Kicker ZR360 amplifier
Lightning Audio 1 farad capacitor

Other
Macewen White Faced Gauges/Shift overlay
A-pillar gauges (Phantom oil pressure, Air/Fuel)
180* thermostat
Window Tint

 

LT1 cam installed yseterday. I had the a/c purged to do it. Yes a new roller timing chain and gear set went in then too. We reused my stock lifters and springs. I recommend discharging the a/c. The lines are hard plumbed to the condenser. It was recommended not to try and just move the condenser aside. I've had zero problems with my a/c in 11 years and I intend to keep it that way. It still had 2.5 lbs of freon in the system when it was sucked out.

------------------
90 RS Convertible
Owner: Top-Down Solutions
(626)369-0040

http://www.sc3gfb.org/members/lonsal.html
http://www.taskerinc.com/gs3/profiles/Lon_profile.htm

 

92,

A few things:

First, there is no factory LT1 cam with those specifications. Of the seven factory cam grinds for that family of engines, your specs don't match up:



Second, you ECM is not going to like that LSA. Try to keep it around 112° at a minimum. That should be very easy with a roller cam and lifters.

Third, if you can "pick up" a cam of your chosing at Advance Auto Parts, I'm gonna be very surprised. I couldn't even get a degree wheel there - they were confused when I even asked them...

They do have thirty six different kinds of air fresheners, though.

------------------
Later,
Vader
------------------
"Click - Click - BOOM!"
Adobe Acrobat Reader

 

Oh, yeah. You can install the cam by very carefully moving the AC condenser out of the way. Watch the lines very carefully to avoid any sharp bends or stress points.

------------------
Later,
Vader
------------------
"Click - Click - BOOM!"
Adobe Acrobat Reader

 

Looks like the RamJet 350 (1.6 roller rockers) and HT383cid (1.5 stamped ZZ4 rockers) cam to me, $150 from any GMPP dealer. Not an LT1 cam. nice cam for open loop EFI like the RAM JET and would probably work ok in closed-loop tbi.

 

Actually, I found a different guy with a 94 LT1 camaro cam.. I'm gonna buy from him..

and the only reason I mentioned advanced was because on another post, a guy listed specs and said advanced had a cam like that for $76.99... for that price, I would have bought a new cam.. I called them and they didn't even understand what I was asking for..

 

Keep in mind any new cam you see for a really cheap price like that is more than likely going to be a flat-tappet cam, and wont work with 88-92 TBI roller engines. You need to get a cam that specifically states "87+ hydraulic roller cam". Most of them are in the $200+ range, but you can find some GM cams for <$200.

------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-

 

Yes, I know this. I'm going to get the LT1 cam out of the 94 camaro...

I'm sure its a roller.. I'm pretty sure it will work, i'm not sure If I can put it in myself of not..