Hello, ok I've owned a few Fieros back in the day. But I just picked up a 85 GT 5sp and I want to do a 3800sc swap. I already had the motor and harness pulled from a 99 GTP. now my main question is... Can I use the fuel pump out of the donor car? the 3800sc pump? Also I plan to port and polish the heads, charger, change the cam, and smaller pully... what cam do you guys suggest and what size pully?

quote Originally posted by JOHNSALAS:.. Can I use the fuel pump out of the donor car?

You're kidding right? With all the serious mods you listed why would you trust a used fuel pump from a car that's over 20 years old?
That's the first thing to be activated when you turn the key on. Why risk it or worse down the road later on? Money doesn't seem to be an issue and they are not expensive. Best of luck on your build.

Spoon

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"Kilgore Trout once wrote a short story which was a dialogue between two pieces of yeast. They were discussing the possible purposes of life as they ate sugar and suffocated in their own excrement. Because of their limited intelligence, they never came close to guessing that they were making champagne." - Kurt Vonnegut

nooo I wasn't going to use that one, a new one but for that car. sorry I didnt explain myself completely

This clip was posted by Darth Fiero. Check out his site. Here's the link. Lots of good stuff.
http://www.gmtuners.com/

As I have stated in countless other threads... PLEASE - do NOT use an EP-376 fuel pump with a 3800 SC swap. Just use an EP-381 instead (as long as you aren't making more than about 300 crank HP).

If your 3800 SC is going to make more than 300 crank HP, you will need a higher volume pump than an EP-381 and there are plenty of different aftermarket performance pumps out there to choose from.


Spoon


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"Kilgore Trout once wrote a short story which was a dialogue between two pieces of yeast. They were discussing the possible purposes of life as they ate sugar and suffocated in their own excrement. Because of their limited intelligence, they never came close to guessing that they were making champagne." - Kurt Vonnegut

[This message has been edited by Spoon (edited 03-30-2021).]