Cam upgrade???
06-17-2006, 09:12 AM
#1
Thread Starter
Join Date: May 2006
Location:
Posts: 11
Cam upgrade???
I have a 90 stang vert and I am considering putting a E303 cam in it. I have an AOD trans w/shift kit and TCI Saturday Night Special Torque Converter. Rear end is completely new with 3:73 gearing. It has an off-road h pipe w/o cats and flowmaster exhaust. The engine was rebuilt a year ago, so its running pretty strong. I don't really expect the cam alone to give it all that much punch, but more interested with the sound of a larger cam. Will the E303 make it sound any different? I don't want to get into changing the lifters, pistons, heads...etc. I dont race my car...its more of a toy to play around town in! Any suggestions? I simply want more "yope" at idle. Am I going in the right direction?
06-17-2006, 10:34 AM
#2
3rd Gear Member
Join Date: Nov 2005
Location: Richmond, VA
Posts: 667
RE: Cam upgrade???
Not that I'm directly answering your question or anything, but hows the AOD with the shift kit (which one did you go with?) and the saturday night special t/c... I'm thinking of doing this same changes to my transmission also. Thanks.
-- ojm
-- ojm
06-17-2006, 10:57 AM
#3
Thread Starter
Join Date: May 2006
Location:
Posts: 11
RE: Cam upgrade???
Actually I toasted my previous TC and in the process did minor damage to the trans so I am currently having it rebuilt and havent been able to get out and test the new TC! The guy at the tranny shop installed what he called a "mild" shift kit that gave me much better shifts without the tire chirps. He told me that a shift kit the makes the shifting bang hard and chirp tires will most likely fry the trans. Well we didnt consider the impact it would have on the old TC. It should all be completed in a few weeks.$$$$LOL.
06-18-2006, 09:58 AM
#5
Join Date: Jun 2006
Posts: 34
RE: Cam upgrade???
E, X, B cams will all have some 'lope' (not yope by the way).
The problems with cams and EFI is the EEC will try to smooth out the idle. So, if you want some nice choppy idle you have to overcam the car... which is bad. If you want some serious fender shaking idle you'll have to carberate the car.[&:]
The problems with cams and EFI is the EEC will try to smooth out the idle. So, if you want some nice choppy idle you have to overcam the car... which is bad. If you want some serious fender shaking idle you'll have to carberate the car.[&:]
06-18-2006, 07:19 PM
#8
2nd Gear Member
Join Date: Apr 2006
Posts: 335
RE: Cam upgrade???
Well, the x and z cams are out of the question, unless you cut your pistons... they both put up over .540"lift...
The F cam will be the biggest letter cam that will fit, but probably would be too much for your car.
The E cam is designed to work generally with 5 speeds, and also work great with blowers. They fit the stock pistons with 1.6 or 1.72 rockers. Not generally recommended for autos, but I suppose it would work also... again might be a bit much though.
That leaves us with the B cam... this would be the best for you. This cam has a little less lift than the E cam, and more duration. lift checks in at .480 with a stock 1.6 rocker, compared to the e cam's .498", or your stock cam's .444" lift. This cam will give you more torque down low, which will make that automatic feel more peppy. It will also make more top-end power than your stock cam. I would recommend this over all other For dcams in your situation.
The F cam will be the biggest letter cam that will fit, but probably would be too much for your car.
The E cam is designed to work generally with 5 speeds, and also work great with blowers. They fit the stock pistons with 1.6 or 1.72 rockers. Not generally recommended for autos, but I suppose it would work also... again might be a bit much though.
That leaves us with the B cam... this would be the best for you. This cam has a little less lift than the E cam, and more duration. lift checks in at .480 with a stock 1.6 rocker, compared to the e cam's .498", or your stock cam's .444" lift. This cam will give you more torque down low, which will make that automatic feel more peppy. It will also make more top-end power than your stock cam. I would recommend this over all other For dcams in your situation.
06-18-2006, 08:52 PM
#9
6th Gear Member
Join Date: Feb 2005
Location:
Posts: 8,439
RE: Cam upgrade???
The reason that they don't reccomend it for an automatic is because they assume that you are running a stock converter, and with a bigger cam and the stock (1500 rpm) converter it's very hard to get it into the power band with a nasty cam. So lets say that your stall rating on that saturday night special is about 2500 rpms??? I think that you would be fine with the FRPP E cam and that stall. Also, what caused you to tear up your last converter and what brand was it?
06-18-2006, 09:05 PM
#10
5th Gear Member
Join Date: Mar 2005
Location:
Posts: 3,195
RE: Cam upgrade???
ORIGINAL: 89gtsleeper
Well, the x and z cams are out of the question, unless you cut your pistons... they both put up over .540"lift...
The F cam will be the biggest letter cam that will fit, but probably would be too much for your car.
The E cam is designed to work generally with 5 speeds, and also work great with blowers. They fit the stock pistons with 1.6 or 1.72 rockers. Not generally recommended for autos, but I suppose it would work also... again might be a bit much though.
That leaves us with the B cam... this would be the best for you. This cam has a little less lift than the E cam, and more duration. lift checks in at .480 with a stock 1.6 rocker, compared to the e cam's .498", or your stock cam's .444" lift. This cam will give you more torque down low, which will make that automatic feel more peppy. It will also make more top-end power than your stock cam. I would recommend this over all other For dcams in your situation.
Well, the x and z cams are out of the question, unless you cut your pistons... they both put up over .540"lift...
The F cam will be the biggest letter cam that will fit, but probably would be too much for your car.
The E cam is designed to work generally with 5 speeds, and also work great with blowers. They fit the stock pistons with 1.6 or 1.72 rockers. Not generally recommended for autos, but I suppose it would work also... again might be a bit much though.
That leaves us with the B cam... this would be the best for you. This cam has a little less lift than the E cam, and more duration. lift checks in at .480 with a stock 1.6 rocker, compared to the e cam's .498", or your stock cam's .444" lift. This cam will give you more torque down low, which will make that automatic feel more peppy. It will also make more top-end power than your stock cam. I would recommend this over all other For dcams in your situation.
the e-cam is better suited for a daily driver, it doesnt make as much power at high rpms, but has better low end.
the b- cam starts making power at 3000 rpm and drops off at 5800.
the e-cam starts making power at 2200(I think) and ends around 5600.