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Underbody braces, turbos and more!

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PostPosted: Fri Jun 01, 2007 7:36 pm 
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Location: melbourne
Hi,
I was browsing through a few GTi galleries on the web when I stumbled upon this pic of an autosalon GTi. It's got 2 Air intakes, one on either side of the intake manifold.

I was wondering whether this mod would give much power increase if you had an exhaust system to compliment it?

Obviously the engine is able to suck up a lot more air using this type of setup.

Has any one else tried this?

Thanks

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PostPosted: Fri Jun 01, 2007 8:06 pm 
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The first thought that comes to my mind, is that it will alter the Helmholtz resonation in the plenum.

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PostPosted: Sat Jun 02, 2007 12:06 am 
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more bling ,than zing. :wink:

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PostPosted: Sat Jun 02, 2007 6:30 pm 
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it's hard to make any conclusion from that "mile away" pic but my thought is that he's running a plenum on top of quad throttle bodies on short runners. you could feed the plenum from both ends although it would probably be volumetric overkill.

i'm with tuffy, it's a bling thing.

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PostPosted: Sun Jun 03, 2007 12:54 pm 
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does anyone else notice the fmic on this n/a car

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PostPosted: Sun Jun 03, 2007 2:14 pm 
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winez31 wrote:
does anyone else notice the fmic on this n/a car


Who said that's a fmic? It's probably just a billet grill insert. :roll:

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PostPosted: Sun Jun 03, 2007 7:36 pm 
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winez31 wrote:
does anyone else notice the fmic on this n/a car


Take a closer look under the hood - I see two cone airfilters piped directly to the airbox/manifold/whatever (it's a little hard see what it is).

In a turbo setup the airfilter(s) feed the turbo, which then feeds the intercooler, which then feeds the airbox/manifold/whatever - there a distinct lack of turbo plumbing under the hood - if that is an intercooler it doesn't look like it's connected.


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PostPosted: Sun Jun 03, 2007 8:04 pm 
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With 2 filters and inlets, how would you meter the air flow?
you would need 2 TB's.
And I can't see that think havin a turbo because both filters look plumbed directly to the intake plennum.

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PostPosted: Sun Jun 03, 2007 8:41 pm 
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I feel like putting an official certification on that fuckin' car and shortly on this thread.

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 Post subject: Re: ...
PostPosted: Sun Jun 03, 2007 11:07 pm 
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TGstring wrote:
I feel like putting an official certification on that fuckin' car and shortly on this thread.


it needs to be done quick!! anyone notice the hood on the ground?? and the guages bolted to the top of it!!?? :rollin:

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PostPosted: Mon Jun 04, 2007 8:19 am 
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So i guess the answer to my question is "no"!!

It's obvious that its not turbo, but if there was some HP related gains to having two air intakes i would probably do the mod... :P

As for the gauges on the bonnet... What is the point!! Can they even be read from that distance!??? lol

Thanks for the comments... :)


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PostPosted: Mon Jun 04, 2007 8:20 pm 
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Location: Ottawa, ON
I've seen lots of muscle cars with the gauges on the hood, but i think he means that the guages are fake because they are not hooked up.


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PostPosted: Mon Jun 04, 2007 8:59 pm 
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That picture is a few years old. The car ran very well with that setup...and the gauges work...electric allows you to unplug them from the car when you mount them on the hood like that.

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PostPosted: Mon Jun 04, 2007 9:06 pm 
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i know its not turbo thats why i commented on the interfooler :roll:

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PostPosted: Tue Jun 05, 2007 1:37 am 
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Quote:
That picture is a few years old. The car ran very well with that setup...and the gauges work...electric allows you to unplug them from the car when you mount them on the hood like that.


Do you know what other mods where done to the engine and how much HP it put out?


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PostPosted: Tue Jun 05, 2007 7:10 am 
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Location: Canberra, Australlia
yes

http://www.redlinegti.com/forum/vth.17028.duntym.htm


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PostPosted: Tue Jun 05, 2007 7:53 am 
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The car is cool except for the twin intakes. Too Puerto Rican for my taste.

Like what would that get you? other than nothing? (performance wise)


P.S. I didn't realize that they even had Puerto Ricans in AU. ;-)


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PostPosted: Wed Jun 20, 2007 12:47 pm 
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i love that. the best color and swift gti i've ever seen :shock:

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PostPosted: Wed Jun 20, 2007 12:49 pm 
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but if you put a sports air filter in a car, must i remap the ecu so the engine would use it properly?

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PostPosted: Wed Jun 20, 2007 4:01 pm 
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I read somewhere that adding a second tb as in this SS helps. The reason is that the pressure inside the plenum will be the same for cyl #1 and #4, whit the normal set up cyl #4 will allways breath better than cyl #1 as it has more pressure ( becuase there's no air flow in the plenum) over its tube. It may alter the Helmoltz effect on the plenum but I think the plenum's priority is to lower the air speed to rise the pressure in all cylinders.
I don't see it that bad idea as you all say. May be I'm wrong.

fede


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 Post subject: Twin Throttle bodies.
PostPosted: Thu Jun 21, 2007 5:51 pm 
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t3 ragtop wrote:
it's hard to make any conclusion from that "mile away" pic
Bit closer view. It was a RedlineGTI car. Uses a Microtech Lt8 for engine management and got 100KW ATW with only cams, Microtech and the twin TB's. (Just read more of the Redline posts - says the twin TB's were hard to tune and changed it to a single 60mm TB)

Would be fairly easy to progressively link / progressively open the TB's so low end was 'standard' and driveable. Using 1 TB down low and progressing to 2 would be just like using the old style dual throat carby but with a computer and map sensor to keep the Air/Fuel ratio correct.

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PostPosted: Mon Jun 25, 2007 11:08 am 
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I don`t understand why you couldn`t run this twin TB setup on a standard ECU. All you are effectively doing is making it easier for the engine to breath. It's not force induction, the cylinders will only suck in the same amount of air as they would with a single TB. So the fuel to air ratio would still be the same in each cylinder.

Sam

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PostPosted: Mon Jun 25, 2007 11:54 am 
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The answer: There is only one MAF.

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PostPosted: Mon Jun 25, 2007 7:38 pm 
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Location: Kelowna BC
$500 for the plates? WTF

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PostPosted: Mon Jun 25, 2007 7:41 pm 
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and why the fuck do U guys call it a "bonnet"? Looks like a "hood" to me

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