jessie_rs

Ive always been a firm believer than GRS are best in the business and 3 of my cars all have them cant fault them never had one problem but seem this 500 style and just wondered what would perform better?

http://www.autospecialists.co.uk/AIR...uct-1029.html#

also what are the upsides of single pass intercoolers I cant remember the reason the NMS boys run them?

Twins

iTrader: (18)

Changed mine to that one after years with the grs ,and saw better act straight away

bomsch

iTrader: (1)

Air moves faster, less U-turns to make thru core.
Maybe GRS cooler makes few bhp more than single pass in the top end in dyno, but boost rises quicker with single pass.

turbocabs

asked on here a while ago about theses is there any testing been done with results on net any where have been looking thanks

Fiesta_Jed

Single pass intercoolers Are less restrictive than double pass intercoolers so there "should" be less of a pressure drop from the turbo outlet and the plenum.

Double pass intercoolers have as resctictive U bend at one end so the air is kept in the core longer so "should" be cooled better.

I say "should" as I have never seen any evidence that one is better than the other.

I dout it makes much difference in reality.

I belive that core quality is more important than position of inlet's and outlet's.