quote Originally posted by La fiera: How big are the injectors on those throttle bodies?

Are you asking me?

The one of the right was what FAST recommended for my SD4.
It was from a Jeep 4.L 6-cylinder kit and meant to be mounted to a 4-bbl/2-bbl adapter.
It only has 2 88# injectors on the primary barrels.

The black 4-barrel has 4 58# injectors (they switched out the 88# ones).
It was only on the SD4 engine for a day or so of tuning, only to find out I couldn't get it to work any better.

I believe FAST rates their injectors at 60PSI, so they'd be "smaller" running at 42PSI fuel pressure.

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My World of Wheels Winners (Click on links below)

3.4L Supercharged 87 GT and Super Duty 4 Indy #163

quote Originally posted by La fiera: That engine weights over 600lbs. You take the 2.8L or the 2.5L and install the Rocket Oldsmobile you are putting an anchor on your Fiero because you are doubling the weight of the engine. The HP and torque you will be making on your Rocket will become a handicap instead of an advantage. In other words the power to weight ratio will be way offseted on the negative side of the scale.

I don't know if you meant this response to me (it is my engine), but I have no intention of ever putting this into a Fiero. I originally bought it to put in my 81 TransAm, which I sold, and then I'd intended to put it in my 73 Oldsmobile Cutlass... which ran so well, that I couldn't bring myself to take that numbers-matching Olds 350 out of the car. So, alas... that motor sits on a stand in a storage unit next to my 73 VW Bus, and my 2000cc Porsche (VW) motor. I spent over $7,000 rebuilding it. It even has a custom cam made by Joe Mondello himself... I actually talked to the guy on the phone back in ~2007 and told him all the exact specifications (valve sizes), the heads (C heads), and my rotating assembly configuration (.040 overbore TRW forged pistons), and he made a slightly modified version of his cam off of it. He even gave me specifications for what I needed to pick the right Rochester QuadraJet and what jets and such I needed. I didn't realize at the time who I was talking to, or how lucky I was that I was actually talking to Dr. Oldsmobile himself on the phone.

Anyway, I don't really know what I'm going to do with that engine. I will either (at some point), find another late 2nd Gen TransAm, or I want a 2-door "luxo-barge" of an Oldsmobile, like a Delta-88 Royale Coupe, and drop it in there... you know, one of those ones with the pillow-top seats. I just don't have the time or space to really do anything with that right now as I've been working on this 85 Fiero with my daughter.

Back to my Fiero though... my Fiero has a ~3.2 liter V6 in it. It's my original 2.8 V6/60 that I've installed a 3.1 crank and rods, with .030 overbore pistons, and a slight compression bump. As per Sleek's recommendations, I'm probably going to tear the whole **** apart and have it re-assembled. While I went to town with my Oldsmobile motor, I made shortcuts with my Fiero engine... and I didn't have them balance the rotating assembly (I didn't know any better). I'd learned my lesson by the time I got the Olds, and it was balanced to within half a gram... the Olds can safely do 6,500 rpms (though power is "spec'ed" to drop off just below 6,000 rpms).

I really want my V6 Fiero to be able to wind-out, so it's imperative that it has a good balance, and a cam to support it. It runs fine now... just not great... power drops off at 5,200 rpms because I have that nonsense "fireball" cam in there now, which was basically designed for the S-10 to improve towing... yep, hehe. But anyway, when I DO get my Fiero out of storage, and my daughter's car is done, I'll finish restoring it with the engine as it is now, with the existing computer. Then replace the ECM with the FAST ... a la this thread, and then take the engine back out and rebuild it the way I really want it (with my cam, etc.).

I've screwed up enough projects to know that you don't break something that's already working... you fix the things that aren't, and then replace working things when everything else is working. Otherwise you end up with multiple problems. One thing I've learned... I'm spending a lot of time working, which while it makes projects and things affordable, I have very little time. That's one of the reasons why I was so "OK" with dropping everything (like this project) and working on this other car with my daughter that we just bought a couple of weeks ago (85 Fiero)... you don't get repeat opportunities like this once they're grown up and living their own lives. I definitely want to retire... hahah. But yeah, this particular project (with my 87 Fiero) will be on hold for ~6-7 months.

EDIT: My daughter is insisting on recording everything, and making a YouTube channel out of it, so I'll try to post the first video by this weekend. It's mostly her getting familiar with the car, and inspecting it, and only taking a few things apart. She's going to put together a plan for what we will tackle first. Dad (me) is paying for all the parts, but she's doing all the work.

[This message has been edited by 82-T/A [At Work] (edited 03-21-2023).]

[This message has been edited by armos (edited 03-21-2023).]