3800sc Swap Complete Parts List (Page 8/11)
AustinH AUG 19, 09:52 PM
Today's video goes over different radio options for bringing your OEM Fiero's audio system up to 21st century:

https://www.youtube.com/wat...4dL8ruvZQL4pabfi1DyA

[This message has been edited by AustinH (edited 12-02-2023).]

AustinH AUG 26, 02:02 PM
Today's video is the Heartland Fiero Show 2022

https://www.youtube.com/wat...4dL8ruvZQL4pabfi1DyA

[This message has been edited by AustinH (edited 12-02-2023).]

AustinH SEP 02, 03:27 PM
Today's video is headlight troubleshooting, door switch boots, and badge replacement.

https://www.youtube.com/wat...4dL8ruvZQL4pabfi1DyA

[This message has been edited by AustinH (edited 12-02-2023).]

jagafton SEP 15, 06:16 PM
can I use a 3800SC Pontiac Grand Prix GTP Gen III in the build 1 instead of the Gen II?
AustinH SEP 16, 09:45 AM

quote
Originally posted by jagafton:

can I use a 3800SC Pontiac Grand Prix GTP Gen III in the build 1 instead of the Gen II?



Yes you can. Mine is essentially converted to a Series III if you read the build 2 over closely - https://www.fiero.nl/forum/.../HTML/139530.html#p7

Here is what you need though:
earlier computer from a 98-02 GTP. You will need it to be reprogrammed for the MAF below. Check out the junkyard search, go to the last page they are $20 - https://www.car-part.com/

throttle body from a Series II or a Northstar that is cable driven. Series II is worse and you'd need an adapter for it anyways, so might as well get the bigger Northstar:
Northstar for $20 on last page - https://www.car-part.com/cg...userIntSelect=679348

Adapter for Northstar throttle - https://zzperformance.com/p...riant=12623441133679

LQ4 MAF/IAT - https://zzperformance.com/c...riant=12623064236143

GTP External Transmission Range Gear Selector Neutral Safety Switch / Range Sensor Switch (1x):
Standard Motor Products NS122 - https://amzn.to/3AUnxLK

GTP Range Sensor Switch Connector for above:
Standard Motor Products S795 - https://amzn.to/3uRdWSk

[This message has been edited by AustinH (edited 09-16-2022).]

AustinH SEP 16, 02:40 PM
Today's video is adding a 5% overdrive balancer and an AC pulley bypass, with modified pulleys and some engine talk.

https://www.youtube.com/wat...4dL8ruvZQL4pabfi1DyA

[This message has been edited by AustinH (edited 12-02-2023).]

jagafton SEP 16, 07:13 PM
can I use a Getrag F23 (M86) transmission out of a 2008 cobalt?
AustinH SEP 16, 08:23 PM

quote
Originally posted by jagafton:

can I use a Getrag F23 (M86) transmission out of a 2008 cobalt?



Sure can, that is a very popular one. Although I am not sure what is involved (wiring/mounts/axles will be different); you will have to consult other threads.
There is a chance you need the FIeroRog flywheel but I'm not sure.

[This message has been edited by AustinH (edited 12-18-2022).]

Bladerunner SEP 26, 01:20 PM
Is it possible to run flex-fuel on a Series 3 3800sc or do you need an aftermarket ECU to accept a flex-fuel sensor?
AustinH SEP 26, 01:32 PM

quote
Originally posted by Bladerunner:

Is it possible to run flex-fuel on a Series 3 3800sc or do you need an aftermarket ECU to accept a flex-fuel sensor?



It is not possible. No 3800 was ever updated to include flex fuel.

Easiest and cheapest thing to do is use the stock computer, grab a buddy with HPTuners and stick a wideband O2 sensor in your exhaust. Record the wideband O2 sensor values through your EGR input. Use that to tune your fuel tables manually, then re-flash your computer to set it and forget it. Re-flash your computer every time with HPTuners when you need to change fuel type.
This wideband setup would work (keep in mind you need some sort of port in your exhaust) - AEM 30-4110 - https://amzn.to/3z7zqww


Otherwise yes you would need a 100% custom computer and harness. Holly EFI systems are quite popular for that.