86 fiero se upgrades (Page 1/1)
Dnel605 OCT 18, 10:16 PM
Was wondering what would be some upgrades to add to my 1986 Fiero se engine to add some good horsepower. I have the 2.5L engine
skywurz OCT 18, 10:27 PM
86 4cyl 2.5l you are not going to do much for it. Enjoy a reliable fuel efficient ride.
Patrick OCT 18, 10:36 PM

quote
Originally posted by Dnel605:

Was wondering what would be some upgrades to add to my 1986 Fiero se engine to add some good horsepower. I have the 2.5L engine.





Seriously though, the duke will never be a performance engine. Minimal power gains will be acquired through maximum effort.

Sure, you can spend a lot of money and have a little bit more fun... until it blows up.

Just be content to have your duke running properly, until perhaps you wish to swap in a different power plant.

[This message has been edited by Patrick (edited 10-18-2021).]

fierosound OCT 19, 11:26 AM
There's a few things, but nothing "bolt on" that will make any HUGE difference.
https://ironduke7.tripod.com/IronDuke.htm

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pmbrunelle OCT 19, 12:12 PM
Look for "Super Duty" replacements for the stock 2.5 parts.