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Carbed FI Intake

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I honestly didn't think it was going to work, But it works well.

 

My brother used a carbed motor,turbo heads and intake.

Lost a little throtle response but gaind a fair amount or tourqe.

 

http://www.ultimatesubaru.org/photos/showphoto.php?photo=5355

 

http://www.ultimatesubaru.org/photos/showphoto.php?photo=5354&sort=1&size=medium&cat=500

 

And yes, thats an early weber.

 

~CHIM~

Holy carb riser Batman! :lol:

 

... I was just eating my salad here and thinking...

 

Maybe ignition timing might bring back some of that lost response? Just a thought.

  • Author

My brother wanted me to add that he will make these on order

 

 

Mark (541) 416-3643 Cell (541) 420-2328

 

Not sure what he's asking , if interested give him a call for more details

I dont know about that setup. Seems like #1 and 2 cylinders are probably going to run a lot leaner than 3 and 4 because the intake necks are close to the carb on 3 and 4.

 

Carbs spray fuel into the intake where as fuel injection mists fuel into the intake. So I'm thinking the fuel isnt going to mix right with the air because its being sprayed into a Fuel injected intake rather then being misted into the intake like it should be on a FI setup. This is probably why you lost response.

 

Just a few thoughts.. Others jump in if I'm wrong here.

  • Author

Well, being that the fuel has to travel further before getting the the chamber's is my guess.

 

This is a tunnel ram concept that dodge was doing back in the mid and late 60's.

 

By giving the fuel more travel you loose response but the fuel has more time to atomise thus giving a better mixture and producing more torqe.

 

At least thats what we where going for

  • Author

Allready did, sits about 7 inches above the hood, Looks pretty sweet, i'll have to post more pics.

 

 

 

Crikey! Are you gonna cut a hole in the hood?
I honestly didn't think it was going to work, But it works well.

 

My brother used a carbed motor,turbo heads and intake.

Lost a little throtle response but gaind a fair amount or tourqe.

 

http://www.ultimatesubaru.org/photos/showphoto.php?photo=5355

 

http://www.ultimatesubaru.org/photos/showphoto.php?photo=5354&sort=1&size=medium&cat=500

 

And yes, thats an early weber.

 

~CHIM~

So, if this is a turbo intake, where are the injector ports?? I don't see them in either picture. They should be visable since they would normally be on the outside of the risers.
I dont know about that setup. Seems like #1 and 2 cylinders are probably going to run a lot leaner than 3 and 4 because the intake necks are close to the carb on 3 and 4.

 

Carbs spray fuel into the intake where as fuel injection mists fuel into the intake. So I'm thinking the fuel isnt going to mix right with the air because its being sprayed into a Fuel injected intake rather then being misted into the intake like it should be on a FI setup. This is probably why you lost response.

 

Just a few thoughts.. Others jump in if I'm wrong here.

 

XT turbo/mpfi setup has the injectors right at the base of the intake manifold and shoots pretty much right into the head. There is no fuel shot into the intake manifold on the MPFI engines.

 

You still bring up a valid concern. One thing to do for checking on extreme lean conditions for individual cylinders would be to pull the spark plugs and see if some cylinders are running too lean.

OUCH, that poor spider....

 

Cool if it works but why all the trouble to put a weber on a fuel injected motor???

 

I guess I've never been a carb guy myself. MPFI rules :headbang:

 

garner

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