Well I have decided to do it

[Anonymous]

I will be building a custom manifold setup with 6 throttle bodies, somiliar to what you see below.


The first step I am doing is I ordered the parts I know I need. After I get them, I will begin building my own intake manifold.

But I need a few questions answered.
-What is our factory fuel pressure?
-Do all fuel injectors have the same mounting setup, the pop in etc?
-What size throttle plates do you think I should use?

Thanks a lot, I appreciate the support. I know most of you will call bullshit, and that's justified. But I would like any help you all have to offer.

*EDIT*The only available sizes are 40, 44, 46, and 48mm. I was thinking 40, but I really am not sure.

[SappySE107]

43 PSI, not all injectors are the same, and i guess you will have to eperiment with TB size. You need to know what CFM you want in order to know the TB size. How do you plan to run MAP, and take care of the IAC?

[dbtk2]

Its gonna be a PITA and you're really gonna have to get the sizes right for it to really benifit you. It will look pretty sweet though.

Shawn

[Anonymous]

I already have the MAP sensor figured out. I do not know about the IAC though. Each plate has a screw that adjusts the idle, so I may use that and eliminate the IAc all together. That will be just playing around.

[RacerX11]

I have a couple motorcycle individual TB EFI setups, and they bring a vacuum line from all four TB's, and tee them together into the MAP sensor line so that it reads a more constant signal.

Like Ben mentioned, you need to determine your ultimate power goal with this setup, to calculate a maximum CFM and TB size.

Marty

[dykz34]

No offense, but HOW THE HELL do you plan to pull this off?

[Wolf]

building a plate with the six tb's that mounts to the stock lower intake would be easyest, as you could retain the stock injector setup, just lay your velosity stacks sidways

[Anonymous]

No offense taken Dyk

Well I will not be using my factory LIM, becuz the posts are too close together. I will be building my own manifold using a plaster mold. The TBs have injector ports, one for each. That is why I needed to know if mine will plug into it. And it is dyno proven that it is best to have the injector as far away from the valve as possible, but after the throttle plate. This gives more time for a better air-fuel mixture. I was going to use my factory LIM and use my extra header pipe to sperate them, and have the horns lay flat, facing the firewall, where the factroy UIM sat, but that would look bad and give me a longer runner lengh than I want.

Each TB has a vacuum line that tie together and all come into 1, that I hook to the map sensor. Brakes should use the same setup. But I may use an electrical air pump to run the brakes, as I need to depend on them.

I will be calculating my CFM, with P&P heads. Since I'm doing the intake before the heads, I am designing it using the good heads. Sure it won't net me as much before the heads, but afterwards it will make the head gain a lot more.

It will look sweet. Believe it or not the hardest parts are going to be building the LIM and getting the throttle cables designed and working rgiht. Here is how I plan to haev them sit, since the TBs are connected in 2s. The slashes are the fuel lines. Ignore the 2 periods.

O \ O \ O \
..O \ O \ O \

[RednBlack]

Also no offence Aaron. You need to explain a little further on how you will pull this off. Not a bad idea, just that you are going where no 60* has gone before. I will hold the opinions untill later.

[Anonymous]

Well picture the car with no manifolds, just heads. Then just put a small piece of pipe from the head, and have it turn straight up. Then bolt on the TB. This is kinda how it will look. The difference being that my manifold won't bring all the ports next to each other, it will keep the front 3 tgo the front, and the back 3 to the back.

[pocket-rocket]

For the cables, why not use your stock cable, have 3 of the TB's hooked together by using a common shaft, and on the other end of the deal (opposite to where the throttle cable hooks to, have maybe a cam and rod setup to run the other 3 TB's or something.

[firechiken]

Why even bother with injection? I think it would look better with a couple webber side draughts on there!

[Anonymous]

Why even bother with injection? I think it would look better with a couple webber side draughts on there!

Sounds good-except the Weber carbs for this setup are $624.

Each.

[RebelGT]

and carbs don't make as much power as fuel injection

[blk92z34getrag]

Good luck, and don't forget pictures.