1984 CFI Performance

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Jul 2, 2023 | 01:11 PM

Frogman 1984

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1984 CFI Performance

Hey guys, I got a 1984 corvette with the crossfire injection, and my goal is to upgrade the power a little bit on the stock set up because I love that it’s such an oddball year. Anyways I already blocked off the EGR , deleted the cats and mutilated the smog pump so it all looks stock, but now I’m thinking of porting the intake manifold and getting some long tube headers to finish it off. Will I need any other upgrades to accompany this such as 86 fuel pump, new regulator, and new injectors etc? Also what’s the opinion on retrofitting an oil cooler?

Jul 2, 2023 | 01:13 PM

Frogman 1984

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My car

Here is my car with the 4+3 trans with 78,000 miles and c6 Z06 rims, she ain’t perfect but she sure is a pretty driver.

Jul 2, 2023 | 03:52 PM

billschroeder5842

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From: Southlake, TX

Congrats on your 84 with the CFI. I had the same engine in my 82 as I loved it.

Your mods are all in line and solid decisions. The porting of the intake will yield the most bang for the buck.

I'm not sure why you would need an oil cooler unless you plan on track time.

Jul 2, 2023 | 04:33 PM

Frogman 1984

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Cool thanks, should I need bigger injectors? Or a different fuel regulator?

Jul 2, 2023 | 09:05 PM

ex-x-fire

Melting Slicks

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You can modify your regulator by popping the cap off then you'll be able to adjust it. 84 Fuel pressure regulator adjustment and OEM 85 fuel pump part # ?? - CorvetteForum - Chevrolet Corvette Forum Discussion

Jul 2, 2023 | 10:04 PM

Frogman 1984

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Thanks guys!

Jul 3, 2023 | 02:09 AM

mike1111

Burning Brakes

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Quote:

Originally Posted by Frogman 1984

Cool thanks, should I need bigger injectors? Or a different fuel regulator?

TBI Fueling (dynamicefi.com) don't need to change injector size. getting the fuel pressure to match the needs. porting intake manifold. after that, it all depends on how far ya want to go. the biggest restriction is the intake manifold runner itself.