I have owned 2 1995 fbodies with bolt-ons and a tune.

I am looking at buying a 93 trans am auto, and was wandering what all bolt-on's can be done before you have to tune it?

I don't know much about Speed Density and I'm not sure if I should buy the car or not.

Thanks for any help

 

Basically everything up to a new set of gears, if you consider that a bolt on. Some say that you need a tune for LT headers. Wouldn't know, I did headers/cam/tune at the same time. If it were me, I would get a new tune with bolt on's anyways because a tune is pretty reasonable as far as cost goes for the added performance.

 

www.speeddensity.org that website is specific to 93 fbodys we can answer most all questions about the car...

for a tune we need to have a chip burned... I obviously have a pcmforless... good prices and good service

id suggest getting a tune after longtubes.. most everything else you should be fine but a tune would bring the most out of it... plus you can always send the chip back for a retune...

also with longtubes, converting to heated O2 sensors helps... the owner of sd.org makes a conversion kit for us

 

A tune isn't mandatory for headers, but as mentioned, the tune does make for a good "bolt-on" mod in itself and can offer a variety of benefits aside from the power gain.

 

So cold-air, throddle-body, catback, underdrive-pulley are OK

Sounds like its about the same as mass air!

Do you guys usually have the car Dyno-tuned or is a mail order chip good enough with bolt-ons and longtubes?

Thanks, Kris

 

A mail order tune is more then adequate for bolt-ons and long tubes.

 

I did it after long tubes, should have been the first thing I did. Was worth it for the adjusted fan settings.

 

My 93 did not run very smooth after longtubes until I got the heated o2 conversion. Besides smoothing out the idle, it also helped with my a/f.

Not technically a neccessity to run, but it helped a hell of a lot.

 

I had just about every bolt on and a supercharger running on a stock tune for over 2 years, not advisable but I did it and ran low 12s on a weekly basis at the track.

 

Don't necessarily need a tune. Of course, if you have the extra money, might as well. As others mentioned, it will help with things like AFR, idle, etc. 93's are sometimes a pain in the *** for local hands on tuners though if they can't burn ePROM chips.

 

Mine did the same thing idled like I had a small cam when I would get to stop lights, wouldn't ever die but was annoying, after the heated conversion car idles smooth again.