cosworth 2wd intercooler
Turbo Mini Forums

I am (trying at least) fitting a cosworth 2wd intercooler in my mini, my turbo is a t25 on a mirage manifold. The question is what size of tubes should I use? The intercooler got 60mm out/inlets I believe.I don't remember the turbo outlet size and the plenum pipe size, I will measure them tonight.
Smaller pipes is easier to fit, I have read that turbodave recommends 40mm, but that 50mm is easier to obtain.
So what is the best, use a pipe of same size as the turbo outlet, plenum pipe or the intercooler? or should i go for 40/50 mm?
Is it best to resize the pipes as close as possible to the intercooler? should I try to get someone to resize the inlet and outlet of the intercooler?
Cheers

Alex- Moved for you!

Edited by AlexF2003 on 27th Mar, 2004.

http://www.ktv.no/~pjb-ktv/

This went into wrong section, should have been in "help needed"

http://www.ktv.no/~pjb-ktv/

my turbo outlet and plenum inlet are both 50mm ( I made them myself though). i then run 50mm pipe to the intercooler where I increase it to 60mm just before it. it is roughly the same from cooler to carb.

The bigger pipe diameter you have the slower throttle response (more lag) you will have when on boost. I don't think it will alter the boost threshold much though.

And yes I think 50mm is easier to get hold of.

Wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

50 mm pipes are ok to support 60lb/ft without drag ( mach 0.40 ) and this is ok to support a 600 bhp flow...
so use the size of the turbo comp oulet until the cooler where it can be increased to 60, but the best is to keep 40 mm pipes , this though, restrictiing the pipes again are not good, so if you increase the diameter , one time then don't reduce it again
cheers
fab

Shouldn't you ask if someone know where to mount that damn monster of a cooler??

Buy a Clubman :)

this ones for Turbo Dave he'll know. that's a big intercooler for that turbo isn't it?

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

It is big. My options are these, as I see it
http://www.ktv.no/~pjb-ktv/images/turbo/intercooler8.jpg
I have to move the radiator and the fan a bit to the side, but that shouldn't be a problem, probably I can use clubman mounts. And I will have to use a kad bonnet.
the other option http://www.ktv.no/~pjb-ktv/images/turbo/intercooler6.jpg
I will have to get rid of the dizzy, and move the oilcooler.

http://www.ktv.no/~pjb-ktv/

You know I'm in favour of the first one. Much better in all respects I think :)

Then you can still have the oil coole rin the "right" place and not have to move that areoun whenver you need to change plugs. It's easier to remove the intercooler than the oilcooler. Also, CAN use the original dizzy on that one..

I know you know I feel this way though :)

It depends how much boost your going to run as to wether you need a cooler that big!

If you don't then all you are doing is adding a nice big pressure drop and gain tons more lag than std!

Alex

AlexF

Pressure drop across one of those would be minimal i'd have thought... They really are decent pieces of kit...
Presumably you're going to get new end-caps made up to make the plumbing easier? If you do - make sure you ditch the 60mm pipes and use 50mm. Much easier!!!

I use 57mm pipes and a big front mounted intercooler, i can't say i noticed any more lag with this fitted than when i ran really short pipes to a side mounted Renault 5 intercooler.


Phil.

WWW.TURBO-MINI.COM

im looking to fit the same intercooler, just about thr right size to fit, and i have seen a few on ebay.

A-series power! 1972|1310|T3 turbo|Omega pistons|Cantre main strap|Orange clutch diaphragm|AP race plate|Comp pressure plate|Lightened steel flywheel|13-row oil cooler|Vernier duplex timing gear|Phase 2 Piper cam|Green air filter|Hi boost carb needle/spring|2"Stainless exhaust|3"Play mini stainless rear box|Jack Knight s/c 4spd gearbox|Jack Knight s/c drop gears|Silicon coolant hoses|Lumenition HT leads|GAZ lowered height shocks all round|Steel flip-front|Rear safety devices cage|Group 5 arches|6x12 deep dish Minilites|Surf blue/Old english white|

im looking to fit the same intercooler, just about thr right size to fit, and i have seen a few on ebay.

A-series power! 1972|1310|T3 turbo|Omega pistons|Cantre main strap|Orange clutch diaphragm|AP race plate|Comp pressure plate|Lightened steel flywheel|13-row oil cooler|Vernier duplex timing gear|Phase 2 Piper cam|Green air filter|Hi boost carb needle/spring|2"Stainless exhaust|3"Play mini stainless rear box|Jack Knight s/c 4spd gearbox|Jack Knight s/c drop gears|Silicon coolant hoses|Lumenition HT leads|GAZ lowered height shocks all round|Steel flip-front|Rear safety devices cage|Group 5 arches|6x12 deep dish Minilites|Surf blue/Old english white|

I'm planing to use the same intercooler,
I think it should stay in the air stream , so I prefer the secound solution the lower one, I also plane to use this intercooler in the lower left end corner, as my turbo outlet pipe already come in this position, they are passing just under the rad , then you'll have no more prob with the dizzy, and will just have to move the alternator slighty upper, using the longer belt one, will have a prob with the oil filter , which I have deported on the side panel using a mocal support and a goodridge J tube on plate at the filter support place, this clearing the place , allow better oil filtering and don't carry any bypass filter valve
fab
still a question how many horses do you want to stock under your bonnet and why a T25?

PJ's engine was dynoed to approx 150hp with a T3, so It shouldn'y be much less now. He obtained a new T25 at a decent price, that's why. T2s are VERY HARD to fin in Norway.

Also, if he fits the intercooler at the top (first picture) the bonnet will of course be drilled accordingly.

depend on the t25 wheel size , but at 150 hp the tiny renault t2 50 trim is the best match, the larger t25 wheels will be out of flow ( in the surge line) right in the middles revs , bad. a t25 is ok only if you intend to rev very high and espect to beat the 170 hps untill these t 25 wheels are inefficient.
mail me at fabrice5200@yahoo.fr , I can try to source a gt turbo unit.
cheers
fab

Fab, I sent you an e-mail.
Would it work to put the oilcooler upside down? If its possible it would fit perfectly under the intercooler http://www.ktv.no/~pjb-ktv/images/turbo/intercooler6.jpg

http://www.ktv.no/~pjb-ktv/

Petter,
about the oil cooler I don't know if it can be used with the entry downside as it will perhaps not allow the air to escape and let the space for the oil, if someone know the answer , I would like to use my oil filter upside down?
cheers
fab

So Petter, did you fit that cooler or what?

I just found this thread as BIR1 might be equipped with a 2wd Cossie intercooler soon....

a 4wd intercooler is a very tight fit !!! 2wd seems to fit a little better , just .

Everyone knows that instructions only have to be read if the thing doesn't work....

Metro turbo weekend driver,Mini turbo in the making again!

Bargain??

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...AMEWN%3AIT&rd=1

I'd say yes! bloody good price!

Team Racing

i paid forty one quid for mine off ebay and its just sat in me garage ive used me shogun intercooler for now ( im not selling me cozzy cooler before anyone asks)

no longer a series, but still 1.3 turbo.