84 fieor-- 94 N* swap (Page 23/24)
mcfrandon MAR 09, 12:46 AM
ok so that idea is out the door. great. haha

will arent you running around with high comp pistons and cams?? what do you make for power?

i got the new engine apart tonight and its in great shape all around. very happy with it. all the bolts had a nice crack to them as well. the only bearing with any sort of visible wear was rod bearing 1.

i need to decide what pistons to go with if i need high comp pistons or if im going to boost it i probably want like a 9:1 at the most

also the pistons walls do look different than what the machine shop had put on the engine currently in the car.
Will MAR 09, 09:20 PM
GM's factory hone is pretty darn nice. Since the bore liners are as hard as they are, the bores wear very little and re-honing is typically only necessary when using a torque plate for a higher end build.

I'm running 11.5 compression with stock cams and made 312 RWHP with the Shelby computer, post tuning.
mcfrandon MAR 09, 10:26 PM
from the sound of that it seems that i will definitely need to boost it to get to where i want to be. i will be ordering parts here soon.

as far as bearings go should i stick with the aluminum main bearings or go with something like the tri metal MAHLE / CLEVITE offers...?

i guess i will be running whatever rings come with the 9:1 pistons i order

i will order the eagle rods

i will order 20 more inserts for this block and felpro/victor gaskets

probably have to get a new clutch since mine is spec stage 2+

also need to do some research on what turbo is best for my application.
Will MAR 15, 07:46 PM
Are you looking for 500 at the wheels or 500 at the crank? 500 at the crank is achievable N/A if you spend enough money with CHRFab on cylinder heads and turn the engine to 8500. If you want 500 at the wheels, you'll need some boost.

Boost will allow you to make enough torque to shred a 282 and/or the Fiero inner (and stock outer) CV joints.

Why do you feel you need more inserts?

I'm using Clevite bearings in my build.
mcfrandon MAR 17, 12:21 AM
i need more inserts for the new block i have. i think they are like 200 for another set

im really torn on boosting it or not. i really just feel like since im going through all this trouble of taking it apart and putting another engine in that it should make more power.

chrfab head work alone is 2k. its hard to justify spending that much on head work that probably wont net me nearly close to what a turbo would. then again like you said any boost would pretty much mean new trans and axles.

how much did your high comp cp pistons run you? did you have the engine balanced?
Will MAR 20, 08:32 AM
Eagle rods and CP pistons. I weight relieved the crank and then had it balanced at the new bobweight.
Here's some heavy duty math on weight relief: http://www.realfierotech.co...topic.php?f=3&t=4522
IIRC, CP's were in the neighborhood of $100 each with pins.

Alan must have quoted you his normal head package. If you talk to him long enough, he'll try to sell you the package with cut down titanium Indy car valves 0.100 over stock, but that's only $4000 or so.

[This message has been edited by Will (edited 03-20-2016).]

mcfrandon MAR 20, 08:53 PM
holy smokes that was a read. a little over my head for sure.

im really starting to wonder if i really need pistons/rod/rebalance if im going to keep it under 500hp so i dont have to change trannys. the bottom end is pretty stout in this thing and if im running arp rod bolts and tri metal bearings then i think i might be ok to that power range. I just sold a 4cyl car that i put a turbo on and ran it to 250-300 hp/tq and it was a stock block with 9.5comp ratio at around 18psi boost with meth injection and the internals were nothing compared to this thing.
Will MAR 22, 07:07 PM
What's the most powerful Fiero and the most powerful car you've ever driven? A 400 WHP Fiero has *WAY* more performance than anyone can put to use on public roads.
mcfrandon JUN 26, 01:00 AM
Hey guys, just wanted to give an update since it's been several years. I guess at some point I found direction and just took off.
Not sure if I mentioned but I ended up picking up a 87GT Chassis.

As the build sits it is a .020 over northstar with a 70mm turbo, F40 6speed, water injection, and water to air intercooler.

I'm making just over 540hp at the wheels but need to go to a standalone ECU to crank out more power.

The engine has Ross Racing pistons, and Eagle H beam rods, and King Tri metal bearings. Professionally hand balanced entire rotating assembly. Running royal purple 5w-30XPR with an oil cooler and K&N filter.

Walbro 450 fuel pump and 1000cc injectors. running about 20psi of boost. Norms inserts with ARP studs and cometic gaskets. I have also had the A/C working at one point.

The wheels are grandsport replicas with 345s in the rear 285s up front TOYO R888. Brembo brakes from a hyundai 5.0 and corvette rotors.

I have also converted to adjustable electric power steering which has been just awesome.

I believe with a proper computer this could get in the 700hp-1000hp range. The MAF is maxed out and cannot convert to speed density with the LS1 northstar program from westers.

Currently I have the car listed for sale as it has really been sitting the last few years as i pursue other paths. Thank you guys for all your help.
Will JUN 27, 03:47 PM
Great job! Perseverance wins the day!

What flares did you use?

Where did you have the block honed after it was bored?

Is the new radiator your intercooler?

[This message has been edited by Will (edited 06-27-2023).]