PFF - Pennock's Fiero Forum, PDA Edition

400-500 hp 3800 sc series 3 (Page 1/2)

Josh86gt

OCT 19, 11:40 PM

I plan on putting a 3800 in my fiero and I would like to get about 400 to 500 horsepower out of it, what is the cheapest way I could get there while retaining the supercharger?

[This message has been edited by Josh86gt (edited 10-20-2024).]

Frenchrafe

OCT 20, 07:15 AM

TURBO !

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"Turbo Slug" - '87 Fiero GT. 3800 turbo. - The fastest Fiero in France! @turboslugfiero
https://youtu.be/hUzOAeyWLfM

Dennis LaGrua

OCT 20, 02:53 PM

quote

Originally posted by Josh86gt:

I plan on putting a 3800 in my fiero and I would like to get about 400 to 500 horsepower out of it, what is the cheapest way I could get there while retaining the supercharger?

It is doubtful that you can go to 400 HP with the Gen 3 supercharger. You might squeek it out with the GenV unit but many mods will be required including head work, a cam , valve springs, 1.5 rockers, small pulley, FSIC, 80lb injectors and e85 fuel. It won't be cheap.
Some guidelines here:

The road to 400 WHP

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

Josh86gt

OCT 20, 04:08 PM

quote

Originally posted by Dennis LaGrua:

It is doubtful that you can go to 400 HP with the Gen 3 supercharger. You might squeek it out with the GenV unit but many mods will be required including head work, a cam , valve springs, 1.5 rockers, small pulley, FSIC, 80lb injectors and e85 fuel. It won't be cheap.
Some guidelines here:

The road to 400 WHP

How much do you think I can get out of it for 2500$?

fieroguru

OCT 20, 04:14 PM

For $2,500 you might get it installed in stock form. The upgrades can come along later when you have a larger budget.

Josh86gt

OCT 20, 04:15 PM

quote

Originally posted by fieroguru:

For $2,500 you might get it installed in stock form. The upgrades can come along later when you have a larger budget.

I mean 2500$ for just mods

Dennis LaGrua

OCT 20, 05:11 PM

quote

Originally posted by Josh86gt:

I mean 2500$ for just mods

How you intend to use your vehicle, street, strip or street/strip? Is your budget DIY, or for a speed shop build? Increasing horsepower requires adding aftermarket parts, machine shop costs, hours of tuning and assembly labor. Your question is best answered in the ZZ Performance videos but they say that to 400HP even new pistons are needed. They are the experts so you might want to contact them.

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

[This message has been edited by Dennis LaGrua (edited 10-20-2024).]

Josh86gt

OCT 20, 05:16 PM

quote

Originally posted by Dennis LaGrua:

How you intend to use your vehicle, street, strip or street/strip? Is your budget DIY, or for a speed shop build? Increasing horsepower requires adding aftermarket parts, machine shop costs, hours of tuning and assembly labor. Your question is best answered in the ZZ Performance videos but they say that to 400HP even new pistons are needed. They are the experts so you might want to contact them.

If I have to change internals I plan on doing that myself,I plan on using it as a street car no drag racing or anything maybe an occasional launch, thanks I will give that a look

Dukesterpro

OCT 22, 09:46 AM

Scope here is your most important factor.

If you are planning on using this as a streetcar, Id stay away from that 500hp mark. You WILL sacrifice drivability, economy and most importantly, reliability.

Instead of worrying about how much go fast parts you can get for 2500, put that money into a really clean stock install, something that's easily removable if you want to play with it later because your scope has changed.

Thats my 2cents, do with it as you will

Dennis LaGrua

OCT 22, 12:17 PM

quote

Originally posted by Dukesterpro:

Scope here is your most important factor.

If you are planning on using this as a streetcar, Id stay away from that 500hp mark. You WILL sacrifice drivability, economy and most importantly, reliability.

Instead of worrying about how much go fast parts you can get for 2500, put that money into a really clean stock install, something that's easily removable if you want to play with it later because your scope has changed.

Thats my 2cents, do with it as you will

I would agree to stay away from the 500 HP goal with a 3800. Its been done but the risk vs reward ratio is not favorable.
The more power mods that you add to any engine, the likely result is lower reliability. If you build a 3800SC to 400 hp; along with the engine mods expect to also do a transmission upgrade. My 3880Sc makes somewhere in the area of 300 HP and its plenty of power to light the tires.