there are several things you can do. first of all if you want to use that head you got to get a cam for a normally aspirated car. mopar performance used to make some nice cams for the NA cars. you can find one on ebay or for sale on here every once in a while. if you use the turbo cam it wont run for shit though cause its designed to optimize the turbo being there. you will lose power if you dont get a NA cam. otherwise it will work just fine. you wont have to do anything to adapt it. should bolt right on.
as far as other mods you can port the intake manifold out but i really reccomend you just port match it to the head unless you are really good at porting things. the TB sits way to close to the floor of the intake so porting the bottom out a little helps a lot as well as putting a 1 inch spacer underneath the TB will help it breathe easier. as far as exhaust, a cheap way to performance is grabbing a stock turbo exhaust from a daytona since they are 2.25" in the early cars and even the later ones had 2.5" but thats not good for a NA car so id stick with the 2.25" setup from lets say an 87-88 daytona. i think they started 2.5" in 1989 but dont quote me on it. add to that a new 2.25" cat and slap a 2.25" glasspack on the back and it wont be real loud but should give you a nice mellow sound and give you a decent gain. or you can have a shop bend you a setup for about $150. also mopar used to make a full length header for the NA cars but these are really hard to find. if you can find one they are great! i dunno about porting the stock manifold but hey you can try it.
you can have the head shaved like say maybe 20 thousands and that should bring your compression up a bit. but be careful you can shave it to much and can possibly cause the pistons to hit the valves if the cam timing is bumped to far.
also you can get an adjustable cam gear to adjust your cam timing. i believe advancing it helps your top end power and retarding it helps the bottom end. but be careful as advancing to far can cause pistons to hit valves.
bumping your ignition timing helps to. i believe most people bump theirs to 18 degrees before top dead center. and this was what i always bumped my NA cars to and it seemed to give it a few more ponies. this also will help with your gas milage. you will pick up a few mpg's!
thats about as far as ive gone in my quest for NA power! i dont have any TBI cars anymore so i aint messed with one in a while.
hope this helps, Will
but a fair warning if you get to far into mods you may have to raise the fuel pressure to keep up. i think anything above 140 horepower and you need to raise the fuel pressure a few psi or may eventually have to get a bigger injector.
 Quote: |
Originally Posted by V8GremlinX
just curious whats out there for a TBI as far as performance, what are the best to get, where from? how much?
i have a head thats ported and polished, but its off a 2.2 turbo, will it work? what would i have to do to adapt it, its a 782 head
i still have the motor apart, so i don't really mind changing things before input back together. how will the electronics work with mods? also whats the best exhuast, since all i have right now is a manifold, nothing on back. anyone ever have exhuast manifold ported?
Rich
|
  |
TurboDodge.com 
ill have to keep that in mind. the furthest i ever went was 20 thousands. but hey if you got more then you are braver then me lol. anywho but if you shave to much you cant advance your cam timing to far without hitting pistons to valves. 
