Forge Twintercooler....anybody fit one?

Rabbit222 said:
Would like to hear your thoughts and impressions on this product especially from those guys with S3s :)
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Pretty certain JonnyC had one on his before he sold it. He still comes on here so PM him maybe ?
 
Also interested here.

I've also seen the APR intercooler,which is a rather larger intercooler,rather than a simple add-on,as with the Forge.
 
audi upgrades
It`s a ****** rip off for what you get if buying new. Buy the APR intercooler which is much better made.
 
I am having the Forge Twintercooler fitted tomorrow along with gold heat reflective tape for the Forge CAI. (Every little helps!)

As for the APR being better than the Forge..... Are we just splitting hairs here guys?

The Forge intercooler is an addition to the OEM intercooler. Isn't the APR a replacement for the OEM. Surely 2 is better than 1?

Does anyone actually have any facts to justify the APR being "better"?
 
tobycruse said:
As for the APR being better than the Forge..... Are we just splitting hairs here guys?

The Forge intercooler is an addition to the OEM intercooler. Isn't the APR a replacement for the OEM. Surely 2 is better than 1?

Does anyone actually have any facts to justify the APR being "better"?
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Good point Toby.
This sounds like the APR fuel pump versus Autotech all over again !
Show us some facts !
 
Hi guys,

I can verify that APR intercooler is a fantastic product that is doing a perfect job!
I have it for almost 5 months now and no problems whatsoever.
I have tested it a couple of times i.e. outside temperature 10 deg. Celcius - intake temp 17 deg. Celcius !!!!
...and after a lot of thrashing!!!!

I am very happy with it!!!
 
i'm sure the APR was designed for other 2.0t fsi cars that have the smaller intercoolers - so everything other than the S3 - i don't think there is much difference between oem S3 intercooler and APR so no point replacing it - but the twintercooler gives you the benefits of having a 2nd intercooler which is worthwhile
 
S3-N said:
i'm sure the APR was designed for other 2.0t fsi cars that have the smaller intercoolers - so everything other than the S3 - i don't think there is much difference between oem S3 intercooler and APR so no point replacing it - but the twintercooler gives you the benefits of having a 2nd intercooler which is worthwhile
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I've not used either of these,but the efficiency of an intercooler is going to depend on it's size,thermal transfer of the metal alloy used and placement in cool air.

The Forge looks as if it fits in front of the OEM intercooler,and is an unusual but seemingly effective way of increasing the area,whereas the APR is the more traditional larger intercooler.
 
Just had a longer and closer look at both the OEM Audi intercooler,the Forge,and the APR.

At last I can see why the Forge would work as well as it does,given that the existing S3 unit is actually a full height intercooler,and the Forge,although positioned in front of it,does add quite a bit of volume to the system.

Anyway....if I go for a bit more power,it may be worth considering.
 
Came across this thread on vwvortex/fourtitude about VF's new intercooler, and apparently it uses the same concept as the forge (i.e. parallel coolers) but with better joints. Pipework seems "smoother" compared to the forge unit which Tees off perpendicularly into the stock IC.

http://forums.fourtitude.com/zerothread?id=4022254&page=1

cant seem to find any info of this "stage II" intercooler on their website it seems, but definitely some interesting posts in the thread linked above.
 
I had a Forge replacement intercooler (to replace twin sidemounted on the Leon), and inlet temps dropped as much as 20 degrees from 38 to 18 under certain conditions.

However with the Twintercooler are there any issues with flow rates / air pressure as you are splitting the output air and pushing it through 2 different sized intercooler vessels?

Is the rear intercooler (the OE one) impeded at all from doing its job being masked by the front one?

They aren't a cheap item, but coooling is a vital component of the equation especially when you are ramping up the boost pressures. I was able to dial up from Boost 6 Timing 6 to Boost 9, Timing 6 with the FMIC on the Leon (Revo Stg2).

Again, would be fascinating to see some before and after logs / graphs as £700 odd quid is fair money (like the fuel pump).
 
warrencox said:
I had a Forge replacement intercooler (to replace twin sidemounted on the Leon), and inlet temps dropped as much as 20 degrees from 38 to 18 under certain conditions.

However with the Twintercooler are there any issues with flow rates / air pressure as you are splitting the output air and pushing it through 2 different sized intercooler vessels?

Is the rear intercooler (the OE one) impeded at all from doing its job being masked by the front one?

They aren't a cheap item, but coooling is a vital component of the equation especially when you are ramping up the boost pressures. I was able to dial up from Boost 6 Timing 6 to Boost 9, Timing 6 with the FMIC on the Leon (Revo Stg2).

Again, would be fascinating to see some before and after logs / graphs as £700 odd quid is fair money (like the fuel pump).
Click to expand...

Forge's published graphs on their website match the figures you've given very well,although as you'd expect,the biggest drops in inlet temperatures are at the top end of the rpm scale.

The hoses are the same size as those for the OEM intercooler,so the biggest resistance to air flow is going to be there,as opposed to the addition of a second intercooler.

The more I look at the design and instructions,the more it looks like a pretty well thought out alternative to a rather larger single intercooler,and a bit more compact than the sort of thing I was using on both my Escort and Sierra,which were actually bigger than the water radiators.....those were from Pace Products,who make a range of intercoolers and radiators,but not for the S3 unfortunately.
 
audi upgrades
I was at my local Audi dealer and got talking to my service manager about this upgrade. Low and behold he took me to an Audi A4 avant and asked me to have a look at the cooler that comes as stock fitment on these cars. It looks awesome and I plan on taking my camera to snap up some pics for you guys. He seems to think that it should work well due to the core being almost double the thickness of the S3 cooler BUT its about half the size in height...kinda resembles the Forge one.
 
Hmm , interesting.

In my mind I would have thought the bigger the frontal area (exposure) the better the cooling as the surface area receiving cooling air is larger.

What the dealer is suggesting is that the intercooler is deeper, and lower on the A4.

I suppose as long as the internal capacity is larger than the one you replace it should be better within reason.
 
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