In my "gathering bits quest" i have just bought a T15 Garrett charger.

I understand this is (pretty much) the low blow unit most cinq/sei conversion people are using.

Can anyone advise on an intercooler and (whoosh) dump valve. Whats everyone using. Im also on the hunt for "pipework" to connect it all together!
Im on , as ever, a reasonable budget.

cheers
Rob

bigest one you can get to fit thats my plan anyway

Ideally you want the biggest possible intercooler, to reduce inlet temps, but, also bare in mind that the turbo will have to fill the intercooler with air before the engine. You can work out lag due to pipework by working out internal volumes of intercooler and associated pipework, then compare this to the volumetric flow rate of the turbo, giving you a very approximate time (before the engine will see boost, you will also need to know your pressure ratio to obtain the compressor flow rate). -I've done this before and the calcs seem to work reasonably well but its only a guide as at different rpm points lag will be more/less apparent (caused by the shape of the compressor map and varying effiency)

Dump Valve wise I have a Bailey piston type that I got cheap of ebay (£40)

-Andy

Intercooler should be as big as you can muster but obviously it needs to fit and a sensible size is likely to lead to shorter pipework. You also want to think about where it will fit and if it will get the airflow it needs without being massively exposed to road debris.

Any group A dump valve is going to do the job but are largely overkill for a non-competition road-going motor so you can get away with more entry-level valves (which cost about half as much). Bailey have a good rep for their valves, try Revotec for budget items if you can't stretch to a Bailey.

smart cars run quite compact intercoolers. might wanna look there

Remember that an intercooler that is too small will cause the temp to rise, IIRC Combined Gas law.

Cheers

D

What about a standard coupe 20VT intercooler?

Personally i'm considering a Bailey DV26 for my low-blow 1242 this summer but am still debating whether i'll need it.