82crossfire305

iTrader: (2)

I heard a while back that someone was going to make an aftermarket intake for the crossfire owners. I am starting a project and would like to put the crossfire setup from the 305 to a 350. Since I dont have the money to buy a L83 from a corvette, and i hear they are not much better, I figured I would build my own engine from this setup with different heads and cam. Any suggestions as to what to do?

n1ffer

A small company called Dynamic Crossfire Solutions specializes in crossfire stuff. They are in the process of creating an aftermarket intake that uses your stock throttle bodies and all of your stock linkage. They also provide throttle body boring services to increase your stock throttle bodies and they also have a custom grind cam on their site.

Web url http://crossfireinjection.net

I haven't used them, but plan to buy some items from them in the future.

Jeffs82TA

iTrader: (1)

Didn't DCS have a pretty bad rep? Heard quite a few CFI guys were shafted for many many months.

8t2 z-chev

DCS did have some foundry problems last year that stopped "renegade"production for a while,but AFAIK,they found another foundry to cast the manifolds.The renegades i saw(in pictures) sure looked goodAll the porting and welding i did on my crossfire manifold to get it how i liked was a bit of an ordeal,but made a huge difference for the better on my crossfire

82tarecaro

iTrader: (4)

I have the Renegade. It took awhile to get. I waited over a year. But the manifold looks good. I still haven't put it on the car. Supposedly, the next Renegade had some improvements made, but they still haven't started selling them again. Whenever you buy stuff from DCS you have to be a bit patient, as they don't seem to move very quick. But for us Crossfire guys, there is not much of a choice anywhere else. I ordered a fuel pressure gauge from them a few weeks ago and I still haven't gotten it. I got an email saying they were going to ship it last week and still nothing. I know I will get it eventually, but customer service is not a priority for them.

n1ffer

From what I gather from an old crossfire forum and this one over the last few years, DCS was started in a garage as an outcropping from their passion to build their own crossfire cars into better breathing vehicles with 383 stroker motors.

I think they still basically operate out of a garage in Phoenix. I also think this business is a side business for them, I think they both have day jobs.

So basically they are trying to provide a small market with some big projects. Getting a foundry to give you capacity for 100 pieces is very difficult. GM, Ford, Chrysler, Freightliner, Volvo, Mack, Thomas bus, Bluebird bus, etc. are all fighting for capacity at the few remaining US foundries. Those large companies are putting through orders for hundreds of thousands of units each year. For a foundry to say ok, we can mold you up, tool you up and pour you a couple hundred units is tough. It will only cost you $1. million! A little exaggeration, but not much. Very hard to get small run parts cast and poured at a reasonable price.

Then you have to find a machine shop that can not only machine the casted product, but do it well, with strong quality control and deliver it on time at a low cost.

Very ambitious for a small time operation to push through a big time product like the Renegade.

That being said, it doesn't explain weeks for their smaller products. That is probably explained by the fact that this is more of a hobby for the guys to bring some great products to a market that no one else serves and having day jobs and families, etc.

From what I have seen, other than the Renegade that has taken some time, they have followed through on other orders, just not in the same time a Summit or Jegs can do.

Once again, I haven't ordered from them, don't know them, and am not endorsing them. Just know that this business evolved from them tinkering on their own 383 stroker crossfire needs and they wanted to bring this stuff to that market.

As a previous poster stated, we don't have many options with crossfire unless you work over your own intake. Renegade is really the only other option.

anesthes

iTrader: (12)

This isn't port injection so I'm moving it to the TBI board.

-- Joe

82crossfire305

iTrader: (2)

ok thanks , how do i modify for a 350 engine and max air flow?

ex-x-fire

Get yourself a die grinder & aluiminum bits & have at it.

82crossfire305

iTrader: (2)

seems a little risky but ive delt with dremels for a while so one iget there ill post

8t2 z-chev

i used 1/4" shaft carbide burrs with a controllable speed electric die grinder to port mine-took a while,clapped a temporary carb setup on to drive the car while the crossfire was under modification.I also built up the runner intakes to better shape them for increased flow-welded on aluminum for this,today i would more likely use epoxy for this purpose-well secured of course.For more clearance above the enlarged runner inlets,a 1/4" lid spacer was built. The L83 corvette engine does have a few minor differences from a "run of the mill"350;forged flattop TRW pistons and a windage tray-pretty easy to duplicate if wanted.'624 heads are original on the L83,so lots of potential for inprovement thereI did my modifications in 1995,did a mild port job on the '624s-today i would probably swap those for something better...

82crossfire305

iTrader: (2)

if you dont mind may i see pictures? and if posible could you get the detail of how the welds are and where? just so i dont **** anything upp when i want to modify the intake seeming as im short on cash and dont know when ill get enough for another intake being thatts not on my priorty list. and whats the windage tray's purpose exactly.

anesthes

iTrader: (12)

Dominic is the guy to talk to:

https://www.thirdgen.org/forums/member.php?u=10967

When he had his crossfire corvette, he got it to do things I didn't think was possible with crossfire. I still have the magazine that featured his car at the time.

-- Joe

82crossfire305

iTrader: (2)

thanks a bunch

Ronny

iTrader: (1)

I replaced my crossfire intake with a holley projection TBI manifold and a 7.4L TB unit. Manifold flows to 6500 rpms. Note width and height of port on Holley site and compare to CF manifold. In hind sight I should have gone port fuel with a Holley single plane and 4bl TB...

82crossfire305

iTrader: (2)

yeah id rather keep the set up and build off of it not to many people see that and the engine to me, at least the set up, is very unique and different. but that may be very well cause im not up to date with most cars like others are. if i can get a manifold to replace the stock one that is better but will accept the dual throttle bodies and crossfire cover ill take it.

Ronny

iTrader: (1)

used X-Ram

82crossfire305

iTrader: (2)

itll just be cheaper to do it myself and port my own manifold considering im on a very very low cut budget but being possible.

anesthes

iTrader: (12)

Me too.. That's what I said last march when I picked up another Fbody. I said "This will be a cheap project".

$14k later, it hasn't even been a year and I still need paint.

-- Joe

Jeffs82TA

iTrader: (1)

Or just buy a sbc crossram manifold like this if you don't need a egr for smog. Make a custom top plate to mount your TBI's and will flow fine and not cost a fortune.

Ronny

iTrader: (1)

Summit sells some decent budget heads. Vortec unfortunately wont fit a CF manifold.

heads and cam will require you to tune the ECU. After market chip is available but you may not be satisfied with outcome.