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Guest Message by DevFuse
 

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Custom intake manifold


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13 replies to this topic

#1 longtrackrmk

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Posted 17 July 2006 - 02:55 PM

Has anyone ever built a custom intake for the EA82 ?

#2 Gravityman

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Posted 17 July 2006 - 03:07 PM

I have plans for building a Carbon Fiber intake manifold for my ER27. sorry not an ea82 but very similar. Are you looking for Aluminum?

#3 longtrackrmk

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Posted 17 July 2006 - 03:25 PM

I have made several of them both with aluminum and steel! Just would like to know if anyone else has tried. The last one I made is steel and has a Q-jet 4 barrel on it.

#4 jacobs

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Posted 17 July 2006 - 04:33 PM

The last one I made is steel and has a Q-jet 4 barrel on it.


Even though Pontiac sucessfully used a Quadrajet on their 6 cylinder engine back in the 1960's, isn't it a little large for a 1800cc engine? What was your throttle response like? What was your fuel mileage like compared to stock? Do you have any photos?

#5 longtrackrmk

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Posted 17 July 2006 - 04:58 PM

Even though Pontiac sucessfully used a Quadrajet on their 6 cylinder engine back in the 1960's, isn't it a little large for a 1800cc engine? What was your throttle response like? What was your fuel mileage like compared to stock? Do you have any photos?


Its all about performance! I blocked off the secondary part of the carb, so now its just a 2 barrel. I new it wouldn't take long for someone to say it was to big for a 1800! I really like the way a Qjet works for rough / off camber use! And there are so many different jets and primary needles avalible! Also I have no water running threw the intake into the heads stealing what little power the 1800 can put out. cold air / fuel = HP !! The throttle response is awesome , But thats not just from the Qjet, I took a huge amount of aluminum out of the ports in the heads. that is also a reason for a custom intake. Im running dual 2" pipes under her and she barks like she really has a bite. I will go out and take some pics . PS How do you put more then on pic on here?

#6 Loyale 2.7 Turbo

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Posted 17 July 2006 - 05:06 PM

Don´t you wanna try a Weber on it, instead?



#7 longtrackrmk

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Posted 17 July 2006 - 05:11 PM

Don´t you wanna try a Weber on it, instead?

Webers are great carbs , but the Q jets works great so no need!

#8 jacobs

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Posted 17 July 2006 - 05:26 PM

I'd never even considered using a Quadrajet on a Subaru before. Now you've got me to thinking.........
In my opinion, Quadrajets are probably the finest engineered carburetor ever made AND they are so easy to work on and fine tune. It's amazing the range in size of engines they work well on. There are so many jets, metering rods, metering rod hangers, and metering rod springs to choose from it can be mind boggling. There were probably more Q-jets manufactured than any other carburetor so they are easy to come by.

#9 longtrackrmk

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Posted 17 July 2006 - 05:33 PM

I'd never even considered using a Quadrajet on a Subaru before. Now you've got me to thinking.........
In my opinion, Quadrajets are probably the finest engineered carburetor ever made AND they are so easy to work on and fine tune. It's amazing the range in size of engines they work well on. There are so many jets, metering rods, metering rod hangers, and metering rod springs to choose from it can be mind boggling. There were probably more Q-jets manufactured than any other carburetor so they are easy to come by.


Yes, they are great for a fabricator. I have put them on almost anything that runs on gas!!!

#10 TheSubaruJunkie

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Posted 17 July 2006 - 06:28 PM

The forum has a photo gallery that all registered members can use. You can link to the images there, or use the [img] tag to display the images in your thread.

-Brian

#11 jacobs

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Posted 17 July 2006 - 06:50 PM

Instead of using just the primaries, wouldn't it be better to use one side of the carb and block off the other side? That would still utilize the air valve secondary and it wouldn't be difficult to do.

#12 longtrackrmk

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Posted 17 July 2006 - 07:03 PM

Instead of using just the primaries, wouldn't it be better to use one side of the carb and block off the other side? That would still utilize the air valve secondary and it wouldn't be difficult to do.

No way to block off the fuel to the other side of the carb, Gas would leak and then a (CATASTROPHIC ) event would happen.

#13 4x4_Welder

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Posted 17 July 2006 - 07:42 PM

Ya know, I might have to try one of my spare Autolite/Motorcraft 2150s on my car. I think I've got one that's a 285cfm, and another that's a 354cfm. Non have chokes, though.

#14 jacobs

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Posted 17 July 2006 - 07:53 PM

No way to block off the fuel to the other side of the carb, Gas would leak and then a (CATASTROPHIC ) event would happen.


Couldn't you build your intake manifold so only one side of the carburetor is exposed to vacuum, remove the metering rods, plug the jets, and plug the accelerator pump jet on the decomissioned side? It seems to me it would work great!




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