I recently got a good deal on an 84 vette targa top. It has the crossfire injection, which I've heard isn't to good. Should I switch it over to tuneport? What other issues are related with this year model?

I recently got a good deal on an 84 vette targa top. It has the crossfire injection, which I've heard isn't to good. Should I switch it over to tuneport? What other issues are related with this year model?

I had hoped that someone more knowledgeable about this topic than I would respond, but since no one has, let me give it a shot.

I don't think it is as simple as it sounds to switch Crossfire over to TPI. There are many electronics involved that would come into play. I am not saying it is impossible, but it would be (IMHO) a lot more than just a bolt on. The guys that I have heard who have eliminated Cross-Fire Injection, have done it by eliminating the electronics and just going with a carburator. Even this is very complicated, because of the effect on other stuff such as gauges and the like.

Question: Is the Cross-Fire working well? IF so you may just want to learn to live with it. If not, you might be better off to sell the car and find a latter model (C4s are dirt cheap right now, I know I own one) rather than to try the conversion.

Anyway, I hope this helps, sorry I am not more of an expert.

Some interesting thoughts about the crossfire. Im seriously considering the X-Ram manifold and throttle bodies. I also think there is some misinformation about the Crossfire. Fuel pressure is a major player and an 85 fuel pump can solve some of the annoyances of the CF.

http://www.x-ram.com/commonproblemswithcrossfireonlyinjectionsystems.ht ml and

http://www.smokinvette.com/corvetteforum/showthread.php?t=4359 This is an interesting article.

You may have seen these but if you havent it makes me think twice about the options. I haven't made up my mind yet but if I can pic up an extra 50hp and stay with the crossfire set up seems to me it might be the way to go.