well im about to turbo my 95 gs 420a motor i have a brand new stock replacement 420a bored .20 over and just hit 200 miles on it yestorday in the spring or during the winter i am planning on turboing it i got a TD05H turbo for basically free from one of my friends and was wondering if i had to do something to the computer because of the turbo wont it get different readings cause its not a turbo car???? if any one can help me it would be greatly appreciated thanks

 

Is the car a manual or an auto? As long as you run a proper boost to the 420, it should be fine.. The check engine light will most likely come on, just because it recognizes something different then what its suppose to.. But if everything is hooked up right, you can ignore it..

 

what do you think thah proper boost would be because i am also tryin tah do this.

 

depends on what do you have in your lower block people, the crank might hold up to 400 something horsepower, but the cilinders and rods, youll be having a party in your engine by the time you reach 12. There are threads about this somewhere here already

 

do you think a motor swap would be cheaper or more expensive than gettin thah kit for my motor?

 

Don't turbo the 420A, its too expensive and not worth it.
You can swap a turbo motor into the 420A shell, but again... its overly expensive, not worth it, and requires insane amounts of fabrication.

 

yea the 420a's are garbage....why do u think the neon uses them? just get a gst or gsx, its cheaper and easier in the long run.

 

well i dont want to buy a whole different car cause i can get tha kit for my motor for next to nothin anyway. but i hear from everyone here that it would be better to get thah other motor.

 

Its simply NOT cost effective to swap that motor out. It would cost you LESS to purchase a GST or GSX.

 

Dusty, bro, you're preaching to the choir.
NO ONE will ever learn this. A friend of mine critisized me on getting my Tib b/c he thought that turboing my 420A would make my rs run 12's.
Needless to say, he's an idiot.
Too many kids buy base dsm's and think its just oh so simple to build an 11 second car with a motor built for onlya few purposes... gas mileage, and reliability. (yes, I feel with the exception of the head gaskets, the 420A was for all intents and purposes, reliable.)