codyhoward89cam

alright guys here is the deal i have a 1992 camaro with 305 tbi and i want to try and buid a setup using. Edelbrock 29785 - Victor E EFI Intake Manifold, Edelbrock 3850 - Throttle Body Intake Elbow, Edelbrock 3869 Throttle Bodie. can anyone list the parts i will need to do this. and sorry but i dont know how to make the fancy links

thanks cody

scamaro355

well your gonna have to find a tpi wiring harness and computer to get that to work.. then get into burning your own chips... or just go all out and get a holley dominator EFI setup..

Drac0nic

Not entirely true. If you can solder up the connectors, it should be a matter of repinning the harness, changing the TPS/IAC for the new connectors (you can get them from a JY or a parts store, they are probably smaller than the stockers you have) and you need to make/buy an injector harness. If you're doing batch fire then you can use your existing TBI wiring. That's what I did with my Astro's TBI setup. I used a Megasquirt ECU with the TBI adapter board but you could repin to a 1227730. Regardless of choices assume you are going to have to recalibrate the ECU and have a way to tune it. You should be able to figure out what pins to move between the two boxes by looking at the diagram, you want a Speed Density box and assume that you're looking at a chip if only to disable VATS.

codyhoward89cam

ok what about the throttle cable and the tps the fuel lines the and distributor

dimented24x7

iTrader: (2)

I did this swap. For the FI part I used a vortec PCM so I could have SFI. But, a 7730 or something similar would work. As said above, you will need to add connectors for the fuel injectors, TPS, etc.

For the fuel lines I used Earls speed-flex hose and aluminum -6 AN fittings. This is the only hose that they will rate for fuel as it has a teflon liner. You will also need the adaptor fittings to allow you to hook up to the factory fuel lines. I used the edelbrock fuel rails that are available for thier EFI intakes that accept 1/2" NPT fittings. These will need some form of sealant if you go this route. I use Hercules real-tuff sealant. Its pretty much the only one that actually works for gasoline. They also need NPT to AN fittings. The 90 degree elbows will work the best. As far as the hose goes, you will need to buy large sheet metal shears to cut it as the hose has an external stainless steel braid. The easiest way to cut it is to tightly wrap duct-tape around the section where you want to cut, and use the sheet metal shears to cut the hose. The duct tape will keep the braid from coming apart while you cut it.

Additionally, you will also need a new fuel pump (walbro 190, 255, TPI, etc.) that can actually make fuel pressure. The stock one is useless in a PFI application. For the fuel pressure regulator the easiest route is to run a 2-way regulator on the return side of the rail. This gives a pretty clean layout. The fuel basically comes in one rail, enters the other, and then goes into the regulator before returning to the tank.

For the throttle body I used an edelbrock 1000 CFM 4 bbl. throttle body with a standard square bore flange. As far as edelbrocks throttle bodies go, they use a NEW style GM IAC designed for the 32 bit PCMs. This IAC needs 320 steps to go from fully closed to fully open. This may cause some issues with the older 8-bit ECMs only designed for a 160 step IAC. They cannot actually fully open and close the newer IACs. If using an older ECM, you may want to use an aluminum intake elbow and a TPI throttle body with old style IAC. This will also allow you to use a stock TPI throttle cable.

This is a pretty expensive swap. The fittings and hose will probably cost close to $200 or more, plus the cost of the intake, fuel rails, fuel injectors, throttle body, intake elbow, fuel pump, pressure regulator, and misc. items like intake seals and what not. You should expect to pay at least $700 dollars to do the swap.

codyhoward89cam

you guys are the s**t

efiguy

iTrader: (2)

It'll work but boy you're going to lose a noticeable amount of throttle response going to a Victor with only 305 cubic inches, that manifold has large runners and alot of plenum volume, too much for your application imo.

codyhoward89cam

well i have an lt1 cam would that help or not

efiguy

iTrader: (2)

Sorry but not with a 3.08 gear. You're going the wrong way.

Jmo

dimented24x7

iTrader: (2)

With EFI, it wont be as much of an issue as it would be with a carb. There will be a loss in low end torque compared to running a small dual plane, but it wont be anything drastic.

Ideally, though, heads and cam would be in order to take full advantage of what the vic-e does best, top end power. With the stock cam and heads, youd see a loss in low end torque with somewhat of an increase out top. It may even help prop the high RPM torque band up a little bit. But, ultimately you need a good cam and heads. If your on a budget, you could run vortecs and a mild roller. With offset retainers, you can get yourself a little more lift out of the stock vortecs. Comp cams has xtreme energy 4x4 cams which have a little less lift than their other cams. These would be a good match to a set of mildly worked vortecs and a 305 with a smaller bore. This wont change anything on the intake side other than youll be ordering the vortec version of that intake instead.

dimented24x7

iTrader: (2)

This is my setup with that intake, Trickflow 195's, and a comp cams XE 4x4 roller ( 206/210 deg. @.050, .458"/.458" lift. 111 LSA). Small, I know, but I wanted something that could get good fuel economy this time around. My block also has bad coreshift in the valley which limits how much lift can be run at the cam. The car has a TKO 500 with 2.77s in the 9-bolt.

http://youtu.be/_A12U9pQDG0