There was a question earlier today that made me think...will I have to change anything with the computer in my 350TPI if I get a cam? Or will the computer automatically compensate from this modification? Also, after getting a cam, would getting a chip burned benefit me more than if I had it burned when it had the stock cam? Thanks guys.

_Clark

 

If the cam you put in was similar to the stock cam the ecm would be able to compensate for the change. It would not be a perfect tune but it would run. But why change the cam if you cant put in something more aggressive? I wouldnt bother with getting a chip burnt until you start doing mods. IE cam swap -porting the intake and exhaust with headers. Also most mail order chips are not very good, however there are few people out there that can do good jobs. The best way to do it is to do it yourself, or if your like me I know someone who burns chips and had it dyno tuned.

 

One more question, when installing a cam on a thirdgen, is it possible to take the bumper and radiator off the car and insert the cam in that way or must the engine be pulled?

 

You dont have to remove the bumper, but you do need to remove the radiator and either remove the air conditioning, or carefully bend it up out of the way.

I ran a ZZ4 cam and corvette heads on my 350 5-speed with the stock 305 5-speed chip. But when I put in the LT4 HOT cam, it was running way rich and wouldnt idle. I started doing my own custom chips, then.

 

I dont see how the A/C would get in the way, and I also dont get how you can do it without taking the bumper off, because to me it would seem like you would have to tilt it in...but it doesnt look like you can do that.

 

what year is it?

91-92 and maybe 90, i forgot, are speed density

while the older ones are mass air flow

the mass air flow has an easier time compensating for cam swaps
speed density needs a reprogram to run good

 

Yeah, speed density here, 1990.

 

Please stop repeating the same old crap you have heard on the internet. Both MAF and Speed Density need a custom chip when you put a large cam in either one. MAF will not "learn" a bigger cam easier than SD will.

By the way, I have helped on three in-car camshaft swaps. Not once did we take the bumper off. Only the radiator and the a/c, as I said above.

 

Ok yeah, I think I see what you are saying. I took a look yesterday and it looks like it would work out relatively easy. Im guessing after you take out the radiator and A/C, you kind of tilt the cam into the bumper to get it flush with the hole its going to, and then guide it in right?