Earlier I was thinking about switching from my crossfire to a carb engine. I got lots of negitave feed back about it. I am glad I did because I would have been a pain in the butt for me to do that. I did in fact find a company to sell me a rebuilt (LIKE NEW with all new parts) engine for 1300. i know a guy that will drop it for me for 250.00. Is this a good deal for me, and I really dont want to put the Crossfire intake back on it but is there another option for me with out having to change computers and wires and things like that I just want it to be simple. Oh ya its going to be bored over 30 or 40 so how much HP will that give me and it has a 2 year warnity any amount of miles. thanks
:steering: :chevy :steering: :chevy

 

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I don't have theURL but there's a guy I found while searching Tuned Port Injection. He does a complete system(TPI) for the TBI Crossfire. He has a kit that includes everything and he'll do your chip to custom specs.
Do some searching I think the kit was around 1100. The guy sounds really knowlegable and does all his own work.

 

I believe you're thinking of http://www.jimsperformance.com

A decent site and I think he's a good guy (although the MIDI music gets annoying FAST), but the TPI swap is anything but easy. Especially if you're expecting a plug and play scenario. So yes, he'll sell you the parts but it's up to you to make sure they get put together correctly... and that's a lot of work to pass along to a friend for $250.

Honestly, you don't need to get caught up in the "how much horsepower?" hype- the crossfire manifold is actually a pretty decent manifold for street use. Don't think that just because "everyone" on the forum is pushing 300+ HP, that YOU must need 300HP as well. Judging by your experience level, budget and desires (daily driver), I think you could save yourself a lot of heartache by simply tweaking that underappreciated crossfire of yours.

Go to the Crossfire Injection Forum if you haven't already, and poke around there for a while before you get all gung-ho on TPI conversions. To even make the conversion worth your time and money, you'd have to get all the high flow aftermarket stuff (base, runners, etc)- and that's even more money.

Just sleep on it for a while, and bear in mind that you're looking at $1500 for the TPI swap ALONE, and that's not talking about the long block or labor to put it all together (and have it run).

One step at a time big fella. Perhaps you should just rebuild the bottom end and see where that takes you. It's easy enough to take an intake manifold off, should you find you actually have some money left over to do the swap!

:D

OH, BY THE WAY: Aside from a carb or dual throttle-body cross ram type setup (offy, Xram, etc), there is no other intake that wont involve a completely new harness and computer. And even those will require some fabrication and custom fitting to get it all together.

Take $500 and have your crossfire extrude-honed. Bore the Throttle bodies for another $80 or so, then replace all the sensors and get bigger injectors to feed it ($300+). Then get the thing tuned for another $300 or so. Adds up, don't it?
But it sure beats buying another used TPI intake ($400), more injectors($150), sensors($200), wiring harnesses & ECMs that will work ($300+), and incidentals ($200+) and THEN paying someone to do the job for you??? All to wind up with a basic 250 horse tuned port setup? :jester


[Modified by Ramanstud, 10:43 AM 5/8/2003]

 

like I said before,install a crane #114132 HYDROLIC CAM AND A SMOKEY RAM (SY1)EDELBROCK BASE WITH A CUSTOM TOP, THE DETAILS ARE AVAILABLE ON THE CROSSFIRE SITE mentioned on the other thread, it requires no changes in the wireing, connections or computer and youll gain an easy 60hp minimum. you keep the crossfire layout but the air flow potential jumps from 190cfm-195cfm, to 270cfm-275 cfm plus in the intake, use that crane came and the resullts will amaze you, AND YES IVE WORKED ON 1984 corvetes that HAVE DONE IT!
while your at the engine rebuild get those heads pocket ported and a three angle valve job done , the results are well worth the money spent if done correctly


[Modified by grumpyvette, 6:39 PM 5/8/2003]

 

Hey grumpyvette,

Was hoping you could answer a couple of questions.
Where can one get the custom top for the SY-1 manifold?
Do the three angle valve jobs last long on a street engine?

vettespd20, sorry about hijacking your thread.