come on peeps...... with greys, a t34, opened out inlet ports, 7.2cr, what will be the power limit of a properly mapped yb using only a 4x4 intercooler?

cant fit much bigger cos its a dax rush with limited frontal area?

 

Could buy my escort cos inter cooler/ charge cooler.

Got to be better than the normal 4x4 item, roughly the same size too.



Dave.

 

BTTT

 

The escos intercooler is probably the best option for the Dax as there really is no space!
even better if you run a cold water system through the charge cooler section.

 

about 330 on a cool day and 300 on a warm day
best bet is to fit water injection, I did that on mine and got ACT's down to 38 degrees C from 75 (ouch )

 

Winter: 438 BHP

Summer: 408 BHP

 

thanks peeps - the escort charge cooler will not fit in a dax rush. even the standard 4x4 intercooler needs the end mounts chopping off to fit width wasy. the escort charge/intercooler is about 3-4 inches wider and will not fit.

doug - are those figures considering the limitations of the the intercooler?

any more suggetsions???

 

I dont nnow for sure, just a guestimate that all

Maybe Mike R or Karl would post more accurate figures up.

 

bttt

 

4x4 standard i/cooler u would be pushing to get over 360bhp

 

i would NEVER expect a standard 4x4 cooler to cope with anything above 330 BHP
unless water injection is added, you can't tell how quickly the ACT's rise for any given time on full throttle with an ambient above 10 - 15 degrees C
I value my motors more than the price of a cooler or H2O injection

And 438BHP on a T34, wow I wish I could find one that produced that power safely with a C\R of 7.2:1

 

Doug,
Even on the engine dyno you don't get 438bhp out of a T3/4 .

I would say that you would be lucky to get any more than 360bhp with even the Escort Cosworth set up on that c/r.

Would be flat as a fart off boost as well. 7.2 is really 500bhp and T4 c/r. You could actually bolt a T4 on and with a suitable map / and the Escort intercooler / seperation kit and get nigh on 400bhp or maybe more with suitable cams .

 

I thought PGT said it was a T4.......then I looked at the bit about Greys and thought "I know the answer to this"

Need to get glasses

I accept the on this occasion

 

the car has cams - dont know the spec ahmed supplied them (rally type cams) and its a lot lighter than a cosworth as well. alos consider that its a toy and when in 'toy' mode it doesn't spend a lot of time off boost. the t34/63 is a compromise between power and lag but the original question was really will the escort (non chargecooled) jobbie be the limiting factor for power?

 

yes

 

yes the cooler is going to limit the power, but the lower cr will help to keep it safer, im still trying to work out with your spec if its "method in the madness" or "madness in the method"

 

yup you have 2 options........1 fit a setup simular to mine, getting 18-20 deg off boost and 35ish on full chat.

or 2 (and best) dig into your pockets and find about 700 notes for a charge cooler

 

cant quite work out a 7.2:1 C\R with rally cams which are low rev peaky things used on a turbo with a 34mm restrictor normally

 

pgt, why have you got cams? if your using a t34.63 your never going to get over 390bhp especially with the space limitations in the dax, standard cas are good for 400bhp.

my mate had bd10's in his cossie robinhood, compleatly unnessasary and you dont need them imo

 

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

 

15 x 10 x 2 would be big enough for a chargecooler surely? , have you got the space to mount the water jacket section elsewhere?

 

I had a lovely Pace charge cooler, I just sold it tho
would have done the job a treat

 

that area would be for the *intercooler* not a chargecooler. there is howver space to fit a spearco 9x10x4.5 chargecooler and a 15x10x2 pre rad to go with it - just dont have a handle on the efficency of such a system

 

same spec as mine was when it ran on the rollers at 26psi in 2003 then. charge temps was through the roof as was the top end fuelling

http://www.derbyshire-rsoc.co.uk/mat...raph%20new.jpg