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Old 09-03-2003, 04:44 PM   #1
Twelvz
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Question New/Aftermarket Intake manifold

Has anyone developed a better intake manifold for our WRX's yet?

Forgive me, I've been away form here for a bit (playing with my Camaros). But I remember reading some things about the stock inake manifold flowing up to +/-10% in CFM to each cylinder.

Any options out there yet...?
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Old 09-03-2003, 05:17 PM   #2
Camperguy
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I use to have a WRX :(

Thumbs up

I`m sure with a flow bench and a grinder you could gasket match and do some mild porting to bring things pretty close.


Bill
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Old 09-03-2003, 06:37 PM   #3
Thomas Ruble
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www.forresterracingheads.com
I haven't had a chance to call them to discuss their design.
Tom
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Old 09-03-2003, 06:59 PM   #4
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how bout a composite manifold w\ direct runners made for use w\ a BBK mustang 5.0 70 mm throttle body ... Im trying to find a company who wants to make one.
Ashley
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Old 09-03-2003, 08:29 PM   #5
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^--- ---^

that is all
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Old 09-03-2003, 09:11 PM   #6
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Something other than a heat conducting material would be killer. But I would also settle for something that is tuned to flow equally.

-Jon
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Old 09-03-2003, 09:18 PM   #7
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I saw a sweet one from APS at SEMA- it has two separate chambers (one sits over each head) and it looks like an "H" from the top. Probably incredibly expensive, but all of there stuff is first class.
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Old 09-03-2003, 09:35 PM   #8
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I have seen some of the aircraft guys make manifolds. I was considering using the T.B's from a SVX to make a dual T.B. set up.





Sean
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Old 09-03-2003, 10:50 PM   #9
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Check out the tumbler valve delete manifold from aps. Has two injector holes per cylinder. Pretty neat.
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Old 09-03-2003, 11:54 PM   #10
CMJ
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http://www.superstreetonline.com/fea...jun/index.html
I want the intake manifolds on this WRX.
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Old 09-04-2003, 11:21 AM   #11
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Quote:
Originally posted by Thomas Ruble
www.forresterracingheads.com
I haven't had a chance to call them to discuss their design.
Tom
Email sent

thanks
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Old 09-04-2003, 11:29 AM   #12
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I must be missing something, but I'm not seeing a throttle body anywhere on that JUN WRX.

[EDIT]
Quote:
Each end tank feeds more hefty piping that leads to a pair of prototype surge-tank intake manifolds housing four individual throttle bodies.
Damn.

-Jon
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Old 09-04-2003, 11:42 AM   #13
DeliciouSpeed
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I'd like to see something like this...

http://theoldone.com/components/intake_manifold/
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Old 09-04-2003, 11:53 AM   #14
Thomas Ruble
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Quote:
Originally posted by Twelvz


Email sent

thanks
No problem. Could you please post what they tell you ? I am interested to know.
Thanx, Tom..
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Old 09-04-2003, 06:52 PM   #15
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is there an advantage to having individual throttle bodies over each cylinder?

...and wouldn't a carbon fiber intake manifold be too weak to handle the heat? especially with all that hot air comming from the turbo? (though it is a sweet idea if it'll work)
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Old 09-04-2003, 07:11 PM   #16
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I've got a cool pic that I think came from this board almost a year ago. If someone wants it (it's of the APS piece) just send me your email.
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Old 09-04-2003, 07:17 PM   #17
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penguinking2003@yahoo.com

is it of an intake manifold by APS? the only product i've seen by them is their TGV delete housings
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Old 09-04-2003, 07:23 PM   #18
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emailed you
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Old 09-04-2003, 07:55 PM   #19
2000vfr800
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We're doing a custom intake manifold on my car. Should have pics in a couple weeks or so.
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Old 09-04-2003, 08:15 PM   #20
Thomas Ruble
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Quote:
Originally posted by 2000vfr800
We're doing a custom intake manifold on my car. Should have pics in a couple weeks or so.
Can you talk a little about it ? I maybe interested in purchasing one.
Tom
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Old 09-04-2003, 08:31 PM   #21
2000vfr800
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It's being developed at Payn Technologies. They are prototyping it right now. In a week or so, I should have some pictures...

We are building an engine with a higher redline and larger turbo so the manifold is being custom tuned to suppliment it...
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Old 09-04-2003, 09:01 PM   #22
Thomas Ruble
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Okay I will keep an eye out for the photo. I have an RA motor and they like high RPM's so this sounds good. Thanx for the response.
Tom
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Old 09-05-2003, 12:30 AM   #23
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Jorge (riftswrx) had his heads done at Forrester, FYI. He may know more about the intake manifold they are working on.
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Old 09-05-2003, 03:34 AM   #24
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Penguinking -

Advantages to throttle bodies over each cylinder? Well, BMW does this on their hot motors, and they're getting over 103hp per liter on california 91 with nothing resembling det.

On a naturally aspirated engine.

From the factory, with a warranty, blah, blah, blah.

Imagine if they would just turbocharge that thing...

-Sean
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Old 09-05-2003, 04:54 AM   #25
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Quote:
Originally posted by stimpy
I must be missing something, but I'm not seeing a throttle body anywhere on that JUN WRX.

-Jon
you can see the throttle bodies on each head - they are at the base of the plenum runners. The evidence of their existence is the little cam that the cable wraps around on the end of the body.
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