Newbie HP questions for 1st-Geners

[ALeavitt]

Where/how do I determine what my rear end ratio is? A post I stumbled across indicated 9mm injectors for 89-91 trucks performing better than some newer ones -- would those work for my rig or would you suggest something aftermarket? I'm looking for a reliable ride between 250-300HP. How do-able is that and at what cost? Where would you start (gauges (needed); exhaust (done); intake (K&N, will likely replace); upgraded turbo (done but again I don't know with what, etc. ); springs/governor kit; etc. Thanks much.

 

[MEby]

ALeavitt;1785517]Where/how do I determine what my rear end ratio is?

I think there is a tag under the hood with specs if your truck still has the origonal gears.

A post I stumbled across indicated 9mm injectors for 89-91 trucks performing better than some newer ones -- would those work for my rig or would you suggest something aftermarket?

What year is your truck? Ic or non Ic?

I'm looking for a reliable ride between 250-300HP. How do-able is that and at what cost?



Where would you start (gauges (needed);

Pyro is necesary and boost is very nice to have

exhaust (done); intake (K&N, will likely replace);

upgraded turbo (done but again I don't know with what, etc. );

there should be plate somewhere on the turbo that says what you have.

springs/governor kit; etc. Thanks much

I would do a 3200gsk too. its not that hard and its inexpensive. See stickys in faq forum. another thing i would do is custom grind the fuel pin and change the spring. Then dont forget to smile as it sets you back in your seat.