darren -
was going to put a t4 on originally. then had drive of a cossie with t4 but couldn't believe the lag............................................... ...............................
by then the engine was built (with the cams) and in ignorance and not wanting the lag, bought a t34 instead. previously it had greens and std cams with t3 and was a great point to point car with 4x4 intercooler. now its got lower comp / cams / greys/ -34 / t34 and wakes up later (3800rpm) but it revs lots and lots. not as easy to drive around the lanes mind with more lag.
its difficult finding space to put a chargecooler, certainly there is no space to have this AND 4x4 interccoler. frontal area will only allow a 15inch wide x 10inch x 2 inch deep intercooler if it went in front of the rad. this prob would not be enough but would allow for a charge cooler before the intercooler as well cos the 4x4 intercooler from a cossie sits about 6 inches in front of the pulleys in a rush normally and is well back so doesnt look a good air path from a cooling standpoint. the chargecooler would sit in the space currently used by the 4x4 cooler so maybe these 2 together would do the job.
spoke to dave at pace and he reckons their 4 core chargecooler would do the job alone, the prob is what ever is done ie intercooler or charge cooler or both, there is still only limited frontal area to supply cooling to whatever method.
i reckon the chargecooler route would be good for road use as it allows a 'heat battery' effect as the engien would only be on boost for small periods, but for track use can't see a real benefit.
does anyone have a feel for the efficiency of the 4x4 cooler?. for example is doesnot seem to have turbulator in the pipes and it is a bout 6 inches deep. i suppose if its heat transfer abilities were good then the rear of it would be doing nowt to cool the compressed air going through it cause the cooling air would already be hot from cooling the frontal part hence the depth of it??
modern intercoolers seem to be thinner - prob more efficient. i guess it all comes down again to frontal area