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Discussion Starter #1
Hi guys!

Toying with the idea of putting a front mount intercooler in my GTV...

Don't want to take the bumper out to get measurement for intercooler sises...can anyone help me?...I want to know the size and if anyone else did it...

Can also be helpful if you can point me some older posts of GTV's with this..


thank you :thumbs:
 

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Not sure about the fitting of a front mount, but I can tell one intercooler to avoid.

It is called a PACE and they are utter rubbish. Both inlet and outlet are on the same side, and the design causes massive turbo lag, due to it being restrictive.
 

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Pro Alloy seems to have nice intercoolers....don't know what difference does it make for the intercooler to be slimmer or thicker!
I don't know to be honest.

They might actually make one specially for your car, although I don't have a link to their website so that you can ask them I am afraid.
 

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Well, When I was hotting up my TB I used an intercooler from Forge Motorsports. In theori, it was slightly bigger in volume than the original one. After examining it and comparing it with the original one, it seemed that the original one had more efficient cells due to the shape that "catches" the air that is passing through in a better way. The one from FM would make the cooling air pass through much easily and thus cool the cores less. Well I hope you understand :D
SO I also had removed the whole AC system and that gave some more space for the front mount Intercooler. As you can see in the pictures, I had to also modify the metal bits of the cars frame a bit so the hoses will have enough clearance on the sides of the intercooler.

PS: I would instead start by builidng a new downpipe and primary pipe that is in 2,5 ( or 3) inch that also eliminates the first catalytic converter under the oilpan. That gives more HP per spent £. but you maybe have already done that?
 

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Well, When I was hotting up my TB I used an intercooler from Forge Motorsports. In theori, it was slightly bigger in volume than the original one. After examining it and comparing it with the original one, it seemed that the original one had more efficient cells due to the shape that "catches" the air that is passing through in a better way. The one from FM would make the cooling air pass through much easily and thus cool the cores less. Well I hope you understand :D
SO I also had removed the whole AC system and that gave some more space for the front mount Intercooler. As you can see in the pictures, I had to also modify the metal bits of the cars frame a bit so the hoses will have enough clearance on the sides of the intercooler.
That looks like a nice piece of kit.

Do you mind me asking how much it cost?

One of those would go well on my car. :D
 

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Sorry to let you down on that :(
I did this as a part of a bigger project for six years ago so all prices etc are gone out of the memory bank.
I went all the way with bigger/upgraded turbo, bigger custom made exhaust, front mount IC, open air filter, Open dumpvalve, Squadra chip, AC delete etc etc. Above this the suspension was powerflexed, Eibached, bilsteined and OMP-ed, also the brakes were upgraded..... Damn I miss her.
 

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After examining it and comparing it with the original one, it seemed that the original one had more efficient cells due to the shape that "catches" the air that is passing through in a better way. The one from FM would make the cooling air pass through much easily and thus cool the cores less. Well I hope you understand :D
It looks for me that you understand the IC efficiency completely wrong. The flow (in both ways - inside and outside) shoud be as low as possible.
Or you mean that Forge IC don't have additional vanes inside air channels which are not affect the flow. That means it is just naff design.
Jan
 

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Or you mean that Forge IC don't have additional vanes inside air channels which are not affect the flow. That means it is just naff design.
Jan
I guess that is what I meant to say. Not the flow of the charged air trouhg the IC but the ambient air flow between the vanes that is supposed to cool the metal. In this particular matter, the original one is better. So at lower driving speeds the original one uses the ambient air to cool the metal vanes better than the one from Forge.
 

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Maybe this Picasso drawing of mine can make it easier :)
The yellow parts in the picture, the original IC has better design on those parts which makes it more efficient at low speed.
 

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Discussion Starter #15
haven't done nothing to the car...every thing original besides center muffler that still exists but is more free flow...

maybe exhaust will come first...but IC I think is a must...But now you got me thinking in if the investment is justified...you didn't seam very happy with your IC!...I thought that center mount would catch much more air therefore cool down the air more...and if the IC was little bigger also a plus for air cooling...
 

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Well, you can still go for a front mount one, but of better quality than the one I had. I just wanted to point out that not all front mount IC.s are better than original ones.
 

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Discussion Starter #17
I think that the original one can be a god one, but it's in a small hole and inlet and outlet are in the same side...inlet and outlet in the same side doesn't help air flow a bit :(
 

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If it is of any positive help, I can report that many GTV TB-s are being run with original IC set ups on track day events without any problems due to hot charge air. If you are not doing any major tuning then the original one is fine 99,99% of the time.
I ran mine for on whole season of track events with standard IC without any problems.
The biggest constrain for the turbo is the first bit of the downpipe, a moulded piece that has a two "dents" in it, see pictures. After this the pre cat under the oil pan is a big "efficiency thief".
What I have learned from my experience, this is how I would do it if I did it again.
1- Exhaust
a- make a bigger bore primary pipe and remove the pre cat.
b- use single flexpipe and better flowing cat.
c- after the cat converter, build a straight exhaust system all the way to the rear subframe and then just a 30deg bend towards the standard tailpipe position. Only two, small, free flow dampers. One unde the rear seats and one at the end.
2- Chip ( Squadra Tuning without any doubt)
3- Upgraded turbo
4- Air filter
5- Better IC

As you can see the picture of the stadard IC, there are two ducts leading ambient air through it from the front of the car. These ducts are conical, that is the area closest to the IC is bigger than the area the air is comming in, this helps creating som vaccum to ease air flow for cooling the metalic cores. I agree that the standard IC makes the air turn around 180degrees, but a front mount one will give longer pipes and longer turbo lag time. Allways pros and cons.....:D
 

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Discussion Starter #19
The big problem of standard IC is the inlet and outlet on the same side!:tut:

Thats the main reason in changing it...that and if you get a front mount one the hole where the IC was could be a air intake to the filter...therefore cooler air coming in the filter...

Thank you for your advice...:thumbs: I will follow it...I think I'll start with the exhaust first...

GTV has 2 flexpipes right before the cat...Why only use one like you said?...Whats the problem with the flexpipe?

Isn't the last Damper enough, do you need bought?
 

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You can just bolt an open air filter directly to the rubber hose comminf from the MAF, There will be plenty of cold air under the wheel arch cover.
Flexpipes... well the smother the piping is the less is the turbulence and backpressure. And It is hard to find a sports cat converter with two inlets.
The damper in the middle is to kill resonance at low rpms. but ofcourse, one can do without also. I used only one damper in the begining while still using the standard cat converter and it was not a big issue.
 
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