The whole job took one hour and was very straightforward. Only very basic hand tools are needed and there was no need to purchase extra items to make it fit.
The build quality is to my eyes “First Class”
This upgrade will now lower intake temps to allow me to add other tuning bits to the car such as a smaller pulley,bigger injectors,better manifold etc to get closer to my aim of around the 300 BHP region…(with mapping of course)
Until now there has been a void in the UK market for such a cooler… (unless you buy the Lotus Cup cooler at �2500)
Forge do this kit for around �750 …
They are at the Autosport Show this weekend…
Their website is… Forge Motorsport
Is there any weight saving? (risks mocking comments from S1 boyz)
There is “substantial” weight saving compared to going down the chargecooler route.
Compared to the standard “S” cooler however it is slightly heavier… But not much…I guess half a Kilo…
Nice and a good price, but still does not address the biggest issue of decent air flow to the cooler, it will still heat soak and take an age to remove it if it ever will. If you plan on big power you need a charge cooler but a std boost car should be ok except on hotter days…
Hi Ade,
I,m also planning on improving airflow from the roof too…
Bigger scoop and internal mods to aid the cooling…
The American guys in Arizona are having good results with a cooler similar to the Forge Motorsport one and Arizona can get Quite hot!
I think everything is a compromise to some extent but I chose this option due to lower cost and complexity.Each to their own
Nice and a good price, but still does not address the biggest issue of decent air flow to the cooler, it will still heat soak and take an age to remove it if it ever will. If you plan on big power you need a charge cooler but a std boost car should be ok except on hotter days…
It says on their website they have looked at it:-
We did not feel however that this alone gave sufficient improvement. The most significant hindrance to the intercooler is the relatively low volume of air that passes through the core via the roof scoop ducting. After trying various options we found a significant improvement in utilising a different core design that gave an improvement in thermal transfer efficiency at low flow rates whilst also reduceing the pressure drop in comparison to the OEM ( Original ) intercooler. Due to the location of the intercooler above the engine and the low airflow through the core the OEM unit has a poor recovery time after becoming " heat soaked ". Again we have been able to improve on the recovery time with our core design.<<
also a chargecooler will still heat soak, its sat on top of a hot engine and its filled with water. I am not saying a chargecooler will not work better but its probably four times the price once fitted and not everyone wants to pay that.
You cant really say that this would be no good for big figures either (guessing we are talking 280-300bhp?) without seeing it tested.
I agree bang for bucks this is better value wise, but in the long run the charge cooler will run longer with less heat soak but correctly does cost 4x as much, if anyone does want to go for boost upgrades they won’t ever get the same cooling efficieny from air to air on an Exige as they can with air to water, my cart runs about 5-7degrees above ambient on a 6th gear pull from 30-140mph several times in succesion, sadly I can’t data log this as I took all the reading via my OBD scanner directly from the IAT.
you pays your money and all that
Do your roof mods and add a couple of thermo couple controlled puller fans to reduce stationary soak and it will rock, you should have max power nearly all the time
I am also thinking about this intercooler from Forge.
Do you have already reviewed the installation of 2 or 4 fans on the intercooler mapped or not to a temperature sensor (like done on US forum)? It seems a good complement to the intercooler. But the roof scoop is another one (just a little bit more expensive).
you wrote …" But the roof scoop is another one (just a little bit more expensive). "
Contact Jamssint on this forum… he does a truly superb addon roof scoop for a truly ridiculous price !( about � 70) Too too low in my opinion
personally I think that adding fans of the size that can be fitted on the back of the intercooler is of no use …
I could be wrong of course …
The thread I,ve linked Re the airflow study suggests a standard roof can be fettled to allow 20 % more flow …
Coupled with a larger (4 times the area) scoop … I would imagime this to be doubled …(40%more)
given that Lotus equip the 260 cup with a lesser Intercooler (allegedley) I am optimistic that the Forge I/C coupled with a much improved roof and a host of other sensible upgrades will allow 300 ish…
As I say I could be wrong …
But… I’m optomistic that 300 will be within reach with UK temps being a tad lower than our Arizona friends
I think Gav’s point about the heat he experiences coming from the rads at the front of his 2-11 interesting.
Essentially its very warm air that is passing the entrance to the roof scoop, expecially on the PP roof. I reckon there will be less so on the normal S roof scoop.
Has anyone read anything on the temps being monitored? A temp sensor at the entrance to the scoop and one in the cooler should be easy enough to setup for a short test.
Hiya Fred,
…Contact Jamssint on this forum… he does a truly superb addon roof scoop for a truly ridiculous price…
Thanks jfk, I am already in contact with him (perfect communication), my issue is more to find the right man to do a nice job with the paint
In my case, I am not looking yet to increase the power (or perhaps just a remap to win +/- 20CV), I am more looking to make this toy more reliable at all weather conditions so definitely ready for the forge + roof scope solutions and always interested by the other choices.
Tx Mark.
So I had correctly understood… [censored]!
I will contact Forge again to see if it’s really an issue (i didn’t see this comment before today), if yes, does anyone know if the previous struters were using the same roof part? (so are we talking here about just adding a few parts or is it a hell to make the conversion)
I also wonder how the roof is fixed on the cup (last versions)
perhaps we can just “deport” the fixation at the bottom and avoid the issue… jfk, is it possible to give me the extra height of the new intercooler compared to stock one? It will be really helpful, thanks.
The same issue was addressed in US with the blackwatch, so I suppose it’s not a big deal to make this modification.
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