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This swap is worth mentioning too, I got great results. Intake is good through 6500 and the tbi unit is plug & play with the stock harness. And you can do it on the cheap. 87-89 Chevy truck 5.7 tbi unit and holley SBC tbi intake.
This swap is worth mentioning too, I got great results. Intake is good through 6500 and the tbi unit is plug & play with the stock harness. And you can do it on the cheap. 87-89 Chevy truck 5.7 tbi unit and holley SBC tbi intake.
No way! That's what I'm doing! Any idea what it makes for hp?
This swap is worth mentioning too, I got great results. Intake is good through 6500 and the tbi unit is plug & play with the stock harness. And you can do it on the cheap. 87-89 Chevy truck 5.7 tbi unit and holley SBC tbi intake.
You had my curiosity, but now you have my attention... How do the linkages line up?
The intake(when new) comes with a throttle bracket that worked well with throttle and tv cables, I even added the cruise too. I have to get some current pictures as the one in my avatar are old and with a different intake.
One other point I failed to mention. A fairly common issue with the Crossfire is the throttle bodies can be significantly out of sync with eachother. It's almost always a good idea to use a carb syncing/balancing tool (or two, it's easier if you have two) to set up the throttle bodies so they are synchronized.
When they are out of sync, you'll be running with more power from one bank than the other, and it will sound almost "lumpy" like a big cam as it comes off idle.
On the EGR, I'm going to be in the minority. I tend to leave the EGR valve in place, even on "racing" engines. It's not difficult to stick a pipe into the header collector and connect the EGR valve that way. There's no power to be gained from removing/disabling the EGR, and the valve and pipe really don't weigh enough to worry about (less than a couple pounds total usually). I even do this on later (post 1996) engines where I could "tune out" the EGR functions in the PCM. On early fuel injection systems like the throttle body injection on the 1984 Corvette, "tuning" the PCM involves burning EPROMs and swapping chips. Even if you could find the equipment and software to do this, it's a PITA that you should probably try to avoid.
If you do remove the EGR valve and block the ports for that, I doubt the computer in this system would notice. The EGR on the 1984 is entirely mechanical, vacuum operated, and I doubt the computer would notice you removed it.
with all of this. No benefits to removing the EGR at all.
I also agree with others that with a ported intake and good fuel pressure, you should be at 250 chp. The intake is some low hanging fruit.
Hey guys, I have a new problem here. It's been parked for 2 years. I went to take it out of storage tonight, and it's not getting fuel. Fuel pump is running, but nothing atat t injectors. It'll run fine as long as I'm dumping fuel in the throttle bodies, but as soon as I stop, it kills. It was parked with like a half tank of well stabilized gas in it, and I topped it off today with some 98 and seafoam. Anything off the top of anybody's head that I could check?
I would check fuel pressure first. But it probably is stuck injectors.
I'm not a fan of the "whack the thing with a screw driver handle or small hammer" approach, although it can get results. I'm the guy who pulls the injectors and sets them tip down in a can/glass jar with injector cleaner (the liquid stuff you pour in the gas tank) in the bottom of the can/jar.
Hi everyone, brand new member here! Just got a bone stock 84 crossfire. The car is in excellent shape, and runs like a champ. But we all know about the poochiness of the stock crossfire.. I don't need anything that's gonna pull 12's or anything, but I'd like to wake this thing up a little bit. I'm gonna have an extremely low budget for this, because my wife is already super pissed at me for getting the car. So my question is, if I port the hell out of my stock intake, and have my throttle bodies bored to 2" or so, throw a fairly mild cam in it, and some long tube headers, would that get me near the 250hp mark? I know there are a couple other more subtle things I can do with advancing my timing, raising fuel pressure and so on, but will I even be in the ballpark? I know the stock heads are killing me, but I can't swing a set of heads any time soon. Would it be worth my while, or cost efficient to have my stock heads ported? Thanks in advance!
Scott Hansen on Cherryleaf Ct in Reno,Nv is the one to go to get the chip reprogramed. He did mine and went the extra mile to help get everything done right. I think his website is scotthansen.net. And also we used Tuner Pro to get the stats he needed,
Remember, if you start messing with things too far, then your looking at a re programming.
i did new heads, mild cam, long tube headers + exhaust system (3in), renegade intake, aftermarket heads bumping the compression a little, and i ended up installing a new computer (ebl flash).
i would do it all over again as it totally transformed the car...
i paid about 4k for my car, and spent at least another 4k getting the car where it is now = fun machine that makes me smile and creepy highway patrol stalkers...
with all of this. No benefits to removing the EGR at all. 
