I would put a size for size Pro Alloy core againt any American core Frank. I have used Spearco stuff and think its shit!
In my experiance its American stuff for show and good old british stuff for a pro!!! 
I guess that’s why the heater cores come apart in the early ProAlloy chargecoolers and I’ve never had a leaking bar/plate designe fail… and what british parts are in your engine bay ?.. 
Yeah I’ve been reading about some of the “Pro” alloy c/c’s breaking up and leaking water on Lotustalk recently…I’d rather have an interwarmer than something thats going to make my engine drink it’s coolant…ouch
Of the ProAlloy unit I konw of leaking it was replaced and all is well with the setup but it still is a heater matrix and not a proper A/W core…unless someone can correct me with more than national pride in regards to their German built engine in a British car.
I have never seen a Pro Alloy cooler leak, or one of their rads fail for that matter. I have seen stupid end users break stuff many a time!
Also the amount of heat and boost I have put through mine in race conditions with out a single problem, proves it beyond doubt in my book.
On the dyno I was putting over 130 degrees into it and only seeing about 38 degrees come out.
I’ve seen them blow out like a sausage in boiling water under 14 psi. boost pressure.
And my spearco core gets 160 in and 20 out but who’s countin on a 10 *c day…On the road…
The fact remains that different cores have an effect but not as great as do the heatexchangers ability to transfer the heat soak and it is the heatexchangers overall surface area and placement to clean airflow that dictate the chargecoolers efficiency more than any other factor…
I have run 34PSI with no problems. On an every day basis I run 26PSI.
Lets not forget you have twice the number of charge coolers and heat exchangers, so I would hope you do see a better result!
Buts lets not turn this into a “who’s got the biggest blown out sausage” thread.
I am just keen for a company who make and sell a huge amount of very high quality products to not get slagged off unduly. Lets not forget that Pro Alloy make Intercoolers for Ford on the new RS500 Focus Ltd edition. They cant be doing too many things wrong if an OE picks them!!!
Weight and complexity !!!
Most guys on here who do not race will never reach the limits of a good air/air…(ok Sean maybe with +30 psi)
I thought the Lotus clan were all for reduction of lardy/un-nessesary add-ons?
Fancy spending thousands on saving a few KG with carbon this and that , only to add more than what’s taken away with bloomin H2O and alloy pipework 
Yea… If it’s needed … BUT, it ain’t !!
Really it ain’t … not with only 300 ish BHP anyrate… and who with a yota is running more than that ??
[quote=SeanB]I have run 34PSI with no problems. On an every day basis I run 26PSI.
Lets not forget you have twice the number of charge coolers and heat exchangers, so I would hope you do see a better result!
Buts lets not turn this into a “who’s got the biggest blown out sausage” thread.
I am just keen for a company who make and sell a huge amount of very high quality products to not get slagged off unduly. Lets not forget that Pro Alloy make Intercoolers for Ford on the new RS500 Focus Ltd edition. They cant be doing too many things wrong if an OE picks them!!!
[/quote]
Oh I’m sorry I forgot to mention I came up with the larger A/A intercoolers for some of the Ford RS200 E rallycross cars back in the 90’s and what does that have to do with the topic and the fact that the chargecoolers that ProAlloy sell to 2ZZ powered Exige turned into balloons on the dyno…nothing, as does the custom chargecooler in your German powered British sports car…
I have one chargecooler that is more effective thanks to better heatexchangers, again it’s the heatexchangers that make the difference… 
Oh and I’m not slagin ProAlloy since I have two of their engine radiators
and one of their heatexchangers in my car, great heatexchangers, just stating facts that the early chargecoolers ballooned out and leaked creating tuning nightmares… 
[quote=jfk]Weight and complexity !!!
Most guys on here who do not race will never reach the limits of a good air/air…(ok Sean maybe with +30 psi)
I thought the Lotus clan were all for reduction of lardy/un-nessesary add-ons?
Fancy spending thousands on saving a few KG with carbon this and that , only to add more than what’s taken away with bloomin H2O and alloy pipework
Yea… If it’s needed … BUT, it ain’t !!
Really it ain’t … not with only 300 ish BHP anyrate… and who with a yota is running more than that ?? [/quote]
Yeah but dont forget pal, when you have been sat in the drive through for ten mins waiting for your big mac and you just have to race that corsa turbo on the way out for pink slips, a charge cooler is the only way…
No more tinter warmer for me, I have seen the light, praise tha lord!
Sorry Frank, as usual, you’re right, everyone else in the world is wrong and not allowed an opinion.
Dude I think it’s you that feel no one one else should have an opinion based on fact not speculation… We are talkin about supercharged 2ZZ powered Exige are we not ?
Unless you can tell me how your chargecooler setup on a 2ZZ SC Exige functions on and off track I believe it’s you just voicin an “opinion” based on a totaly custom aplication without first hand expereance with a 2ZZ SC setup…
I was the first guy testing the ProAlloy heatexchanger in the S2 Exige here in southern Cali. While Simon was down under testin it on the Honda powered S1…Why do you think there is a puller fan setup on their kit now ?
Again I’ve run a chargecooler before Lotus ran with one in GT3 and I do remember comparing charge temps and engine build specs with the boys…
Anyone know the weights of the CC systems for sale with front rads and water ?
Yeah but dont forget pal, when you have been sat in the drive through for ten mins waiting for your big mac and you just have to race that corsa turbo on the way out for pink slips, a charge cooler is the only way…
No more tinter warmer for me, I have seen the light, praise tha lord!
Exactly…now u get the point of a road registered Exige! We don’t all save our driving skills for track days only…some of us still enjoy our cars on the road. Aaaaah Corsa’s, dont u just love the young chavs drooling over your car.
LOL…u wouldnt need Mcdonalds to cook your burger with your own portable grill/interwarmer heatsoaking away 
You could kill two birds with this setup from BOE…
http://www.monkeytuner.com/forum/download/file.php?id=5796&mode=view
Talk about not having a clue…
Steve,
Any news from your visit to Sincs???
[quote=frank]You could kill two birds with this setup from BOE…
http://www.monkeytuner.com/forum/download/file.php?id=5796&mode=view
Talk about not having a clue… [/quote]
I like that but I would want one you could fit a 42oz Rib Eye on!!
Frank, I don’t know why you keep goiong on about my English car with a German engine in it, yours is simply an English car with a Japanese engine in it.
Plus keeping charge air cool, is keeping charge air cool, it don’t make any difference what engine is in it. Heat is the biggest issue any of the big BHP guys have with a mid engined car, especially one with a full floor, so the issues are the same, are they not?!?!?!?
Absolutly you are correct…
I get pissed when someone starts yank bashin…
Just tryin to point out that we are talkin about the supercharged 2zz engine with it’s stock mounting location, it’s a bit different then my current setup and your’s…
Heat is the enemy…duel pumps are a big help with the Pro-Alloy setup…
I have never got round to putting in twin pumps, where is it best to put them? front and back of the car or both at the back?