Hybrid 3.1 Injectors

Ray Hamilton

Join Date: Feb 2007

Posts: 239
- Share
- Tweet
#1

Hybrid 3.1 Injectors

06-24-2009, 03:22 PM

I'm building a hybrid 3.1 iron head to put in my '85 Fiero. The donor engine is a MPFI 2.8 from an '89 Firebird. Will the bottom and middle intake work with the Fiero Top?
I'm thinking of a Crane 2030 cam. What size injectors would be optimum for this engine? The car has a TH 125 auto. Is the 2030 cam too much?

I built a 3.1 for my S10 Blazer with a Holley 400 cfm TBI and ARI stage 2 cam which which worked great. I want some more power for my Fiero project.
I'm building this engine a little at a time because the engine in the Fiero is OK for now.

Thanks

'86 S10 Blazer 4WD, '87 2.8 with 3.1 crank and pistons, A.R.I. "Stage 2 Cam", Iron Heads with stiffer springs, Holley TBI, Manifold bored to fit the TBI Base(4.3 size), Fiero Covers, MSD Coil, DynoMax Muffler and 2.5 Tailpipe, no cat, Auburn Limited Slip, 3.73 final Drive. 700R. '85 Fiero GT 3.4 Hybrid, relieved top intake and exhaust, 57mm TB, Auto. 3.06 final drive.
Tags: None

Announcement