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Just picked up a GTP a few days ago to start my 84 Fiero swap! Thank you so much for all the information you have given the community. I mean this from the bottom of my heart brother. 🤟🏻

Thanks for sharing this for us potential Fiero owners.

Man, I love the gt fiero. Sweet build brother

I love my Fiero man I have the stock 2.8l and it's got soooo much life in it, NO JOKE I got pulled over in the McDonald's parking lot by a cop asking me what year was my "lime green ferri?!" I said sorry to piss on your dreams sir but it's a lime green Pontiac Fiero GT 86. Lol you could tell he didn't know cars that well. But I wish I could have shown him something like this under my hood shooot

Thank you sooo much for your opinions and all the useful info you provide to all of us, my dad had a trick with his old jetboat and drilled a couple holes, i think 1/8 through the thermostat and it would always be moving some coolant. I want to swap my fiero sometime but its a large order for a engine swap

I been watching your vids on this build. My car will be a daily driver but I want it smooth idling and still fast. Your honest opinion on this build was 'entertaining' and has helped me decide what I really need. My goal is just over 300 hp, so my cam will be the VS cam, not the XP as I thought I'd like, and some roller rockers along with my upgraded GenV on 3.4 pulley with Northstar TB. I'm planning on using E85. Thanks for what you've done in the 3800SC world. The dime story was funny but also a nitemare!

I need to get my Fiero’s to the track. Daily drove my 84 Wide Body with the 3800SC swap all summer and really enjoyed it.

Such great info thank you!

gotta love that ole boost gauge. same one on my turbo sunbird, tho mine dont get pegged like that lol

Torque app is not very accurate in terms of hp ratings, or 1/4 mile times. I use it to monitor kr in my m90'd 01 Firebird, I tried it once and the app said I made close to 400 torque and a 9 second 0-60 with a 3.6" pulley gen V, and full exhaust lmaoo. When I did dyno and 1/4 it, I did 215 whp / 307 wtrq. And a 14.4 at 95 mph. On 6 psi. The 12.7 1/4 you got I do actually think is plausible just because of how light a Fiero is. Sweet build man!! Subbed

5:00 - [Note:] Fiero tail light lenses by Keith Goodyear (seal them as per instructions).

Yeah, sound insulation 😣😫 I have the same problem. It gets loud! I'll have to fix it one day.... For the cooling, I think the 3800 does have some overheating issues when loaded up on the track. I havn't found a good solution yet.....? Except cutting holes in the hoods/bonnets🤨 That I don't want to do. For the grip, you will need sticky tyres!

Austin you would end up pulling the motor to change the oil pan gasket. The full gasket across has the pick up tube through it. No easy way as I found out myself.

Glad you are honest. You built it as a race car, and they are not good for daily drivers.

Best Cam for u is the Vs Cam from ZZP has a ton of low end torque and mid range perfect for daily’s and dig races

Hey bro love the build. Trying to finish up mine. Did you use the boost control solenoid. Or just left the boost control module bottom port open

Very cool car! Does it get into closed loop with the 180 degree thermostat? I love that squinty headlight look. How do you do that? What headlights did you use?

Air to air intercooled with stock cam and 1.98 ratio rockers there's been a fair few guys getting 11's or low 12's on drag radials with another 300 lbs then you and only 250-300 wheel horsepower. If you put this on a dyno I'd estimate 250-280 rear wheel HP. The xpz cam you want to spinning it to around 6900 in an auto. Peak powers usually 6500-6600 but helps get it into the next gear better. It loses a little down low but it's why you want a stall converter. Don't forget an xpz cam non intercooled lets you run up to .4" smaller pulley compared to rockers. So you'd probably be down on average power reverting back to stock cam. Honestly it needs e85 , a cooler and a 3k stall.

Same I had to swap specialties do my harness and they didn’t pin for it either I was wondering if I should add it in. But if you’re not having any problems I’m sure I’ll be fine. Are you running air-conditioning. I was looking for somebody to make the conversion pipe from the 3800 compressor to the Fiero lines. I bought something from West Coast Fiero‘s but I’m not sure if I feel comfortable with it. For oil pressure did you just use the Fiero sending unit. And temperature I was going to get the three terminal sending unit for the 3800 I heard I could wire that into the Fiero gauge.

What material did you use to create the blue Pontiac in your taillights?

Seems like most of you annoyance has to do with NHV. I think I can help - I went thru this with mine years ago. I think you are correct that your cam is a part of that but I wonder if your motor mounts are too stiff too. I have played around with mine thru the years and went from super annoying & tons of NHV to barely worse than stock levels. What motor mounts are you using? Poly will rattle your teeth out. Even Rubber lower mounts with a Poly dogbone that is "preloaded" against its chassis mount will annoy the hell out of you. Make sure everything is rubber and make sure you dogbone has at least one of the bushings with softer rubber and that its length is sized so that at idle it is not tight against the chassis - this allows the engine to vibrate freely - without transmitting a lot of NHV to the chassis at idle and cruise (which is 99% of the time). If you can leave it so that at idle the dogbone really isn't "rigid" at idle/light cruise - (and it shouldn't be tight at idle/cruise because at zero or low load the engine is not applying any torque to the wheels. This way the can vibrate (as every engine does- some more than others) without needlessly transmitting the NHV into the chassis. If you leave about 3/16" slop in the dog bone it will tignten up nicely as soon as you accelerate (which you want to avoid excessive engine movement), but at idle/low load it makes things 10 times better inside. I really believe this is you issue and when sorted out will make your driving experience MUCH better. Good luck to you!!

I’m no mechanic by no means but i noticed your oil pressure gauge fluctuating. Is that normal because I noticed mine does that as well and I thought something might be wrong 😅

do you run an intercooler on it? if not you should really check out getting one

Sweet build what transmission is in it

I had a turbo 3.8 and it didn't have a balance shaft and it never had the vibration problems. That sound level was too much even for me. Why would you eliminate the evap system? No gains to be made from doing that.

The new xp rpm cam is smooth at idle..

It’s a nice car but there’s no way your making 400hp in that. Maybe like 280 that pull was way to slow to be making that kinda of power

I will stick with my 2.8. It runs good enough for me.

Change the camshaft your heating problems will go away.

Is it meant to be that slow 14 sec 0 to 100kh?

How Much?

Does this have the factory crossover pipe and manifolds? Have you considered the ZZP Equalizer or long tubes?