Technical Tips > Post 84

1984 Engine Swap

(1/2) > >>

Slingray:
Hey guys,

Looking at buying a 1984, I'm giving some consideration to an engine swap, changing the Crossfire to true EFI.

I was wondering on peoples thoughts, has anyone replaced their Crossfire with a true EFI system?

Thanks everyone

BOSCHVETTE:
it is very very easy and a good way of getting into a high performance vette cheap

87Z51:
Bare in mind ,none of the the '84 engine electronics will work with the later EFI be it TPI or LT1 type.
You will need a different ECM  and loom as well as the manifold , throttle body , injector setup.
The ECMs are cheap , the wiring loom go for US$250+ as removed from car.
Can get good performance from Crossfire injection if you know what to do.
Ask Ben73 on this Forum how to make a CF run.

Slingray:

--- Quote ---Originally posted by 87Z51
Bare in mind ,none of the the '84 engine electronics will work with the later EFI be it TPI or LT1 type.
You will need a different ECM  and loom as well as the manifold , throttle body , injector setup.
The ECMs are cheap , the wiring loom go for US$250+ as removed from car.
Can get good performance from Crossfire injection if you know what to do.
Ask Ben73 on this Forum how to make a CF run.
--- End quote ---



Thanks for the reply. My main concern with the Crossfire is that if I were to get it tuned for performance it would start chewing up my petrol bill. I understand the EFI from 1985 on was approx 11% more fuel efficient while adding around 30bhp. I like the sound of the extra 30bhp but to be honest, I really like the sound of going 11% further on a tank of petrol.

When you say a different ECM, do you mean another Corvette ECM from a later model or an aftermarket ECM? Thanks again.

87Z51:
You will need a later model Vette ( or possibly F body ) ECM  and wiring to suit whatever manifold you are going to use.

Navigation

[0] Message Index

[#] Next page