difficulty of modding stock 85 5.0

[blzn04fx4]

Ive come across a 85 gt that is bone stock. and ive never really had any experience with the carbed motors. but was wondering what kind of set ups you can do without having a maf. or would i have to set up a maf.

 

[Mintsick]

Modifications are endless with a carb setup, you just wouldn't do such things as upgraded injectors/maf/computer tuning obviously.

 

[blzn04fx4]

so i can change the heads and cam and its all good

 

[QUICK91LX]

change anything you want except the front bumper...

 

[blzn04fx4]

change anything you want except the front bumper...

yeah i love the 4 eyed cars. my first was an 86 gt hatch. wish i never would have sold it.

 

[rd]

Actually, changing to the aluminum front bumper will save a few pounds, too.

 

[NIKwoaC]

To the OP, there is quite a bit different in the '85 from the '87-newer cars, and even a few things different from the '86, aside from the obvious engine management situation. Do your homework before you start buying parts!

Actually, changing to the aluminum front bumper will save a few pounds, too.

Ha, I think he was hinting at an aero-nose swap, not necessarily the bumper support.

 

[QUICK91LX]

The first things I would do to an 85 would have nothing to do with breaking into the engine. Upgrading to an 8.8 rear with some nice gears and attached by some nice control arms with nice springs riding on it and nice shocks dampening the bumps. Said rear would have disc brakes attached to it, and the front would get matching springs and a nice brake upgrade, preferably Cobra stuff but at least SN95, using the newer style control arms and all. A set of subframe connectors would be welded in, and a strut tower brace as well. Then I would upgrade to the 86+ style dual exhaust by getting an x pipe and cat back for an 86 GT/87-93 LX 5.0 with the double hump crossmember and associated hangers. Install a good short throw shifter (I like Pro-5.0 but MGW seems to be the favorite around these forums). Then id give the motor a good tune up, accelerator pumps on the carb and advance the timing. Maybe a modest ignition upgrade too. Id have a whole lot of fun with it in this form, THEN i'd tackle taking the engine apart. To me it makes more sense to upgrade the platform on which you will be building before throwing a ton of power at it. But hey, that's just me.

 

[NIKwoaC]

The first things I would do to an 85 would have nothing to do with breaking into the engine. Upgrading to an 8.8 rear with some nice gears and attached by some nice control arms with nice springs riding on it and nice shocks dampening the bumps. Said rear would have disc brakes attached to it, and the front would get matching springs and a nice brake upgrade, preferably Cobra stuff but at least SN95, using the newer style control arms and all. A set of subframe connectors would be welded in, and a strut tower brace as well. Then I would upgrade to the 86+ style dual exhaust by getting an x pipe and cat back for an 86 GT/87-93 LX 5.0 with the double hump crossmember and associated hangers. Install a good short throw shifter (I like Pro-5.0 but MGW seems to be the favorite around these forums). Then id give the motor a good tune up, accelerator pumps on the carb and advance the timing. Maybe a modest ignition upgrade too. Id have a whole lot of fun with it in this form, THEN i'd tackle taking the engine apart. To me it makes more sense to upgrade the platform on which you will be building before throwing a ton of power at it. But hey, that's just me.

Word.

I'd like to toss in my $.02, though. If you upgrade the brakes, go Cobra in front and regular GT disc in back. I say that because I have Cobra at all 4 corners, and now I can't run 15" drag wheels. You can compensate for the mismatch with an adjustable brake bias valve.

While we're on the topic of brakes, the shape of the '86 and older strut tower is significantly different than that of the '87+, and getting in a bigger than stock brake booster (necessary if you go disc brakes), you WILL have to modify the strut tower for clearance.