I have a 87 gt with speed density and I am looking to change the cam. After searching corral and stangnet, i get a mixed response. Some say you can get away with changing the cam, others say everything will go to hell. One guy said he runs a tfs fcam with no problems, others said a b-cam works fine, others say to stay stock. Any thoughts on this?

 

MAF conversion time.

 

Speaking from personal experience.......... get the mass air kit. The money your going to spend on a "mild" cam and have it installed is a waste of time on a speed density 302. It will stumble and break up at high acceleration and rpms. Get the Mass Air conversion kit and be done with it. Then you can run a better cam thats worth the time and money to have it installed. Just my opnion.

 

its gona turn to all hell... been there done that on a friends car...


B cam wont even work out well...

MAF conversion or bust

 

CAI, pro-chamber, flowmasters, shift kit, pulleys, 3.55 rear end, other free mods and suspension mods. I think i am just going to wait for another stang to get (read: newer, like a 93 notch) and start wrenching on it while keeping this gt for my daily driver. Thanks for the input.

 

Not specificaly a 93, I just want something newer that has less miles (Preferably a notchback). I would have no problem getting a clean sd car and converting. I just want something that has less abuse and has had less years of driving on it...93 was just an example.

 

Speed density EEC-IV computers run on a set program table and do not have the capability to adjust to major changes to air/fuel mixture and camshaft changes. Heads, intake, and injectors can be changed as long as the combination of parts matched to each other. You will have major idle and/or driveability issues using almost any larger-than-stock camshaft. The B-303 cam *can* work because the lift & duration are the same on both exhaust & intake sides and the lift is not too far over the stock .444 lift. The issue keeping almost everyone else with speed density from swpping in a cam is vacuum. You would have to figure out how to get enough vacuum to help maintain driveability and usage of your power brakes. Comp Cams makes speed density cams, but they are more suited for use in trucks. Having read your modifications in your signature a cam swap of any kind is a total waste of time unless you just want to do it for "that sound." You say you're going to get a lower mileage and newer Mustang, but take into account the amount of work you will put into it will be no different than what you could do with a 1987 Mustang. Mileage doesn't matter on these cars as long as the body is straight and prepped for add-ons (bracing). Leave the clean and "undriven" Mustang to the purists that intend to keep them forever or for future sale value and modify the hell out of what you have now.