intercooler pipe sizes ?
Turbo Mini Forums

Hi all , me again with another question.

Is thair a specific size that cooler pipes should be ? , is bigger better And can they be too small. Think my cooler has 57mm ends and my (nic) plenum is 50mm.

Any help is apreciated as usuall.

Thanks. Rick

52mm does the job for most people, as its easily available.

50mm is well up to the job of the power 99.9% of us will need. :)

I will be using 51mm pipe with reducers for the i/c (54-51mm)

Tom, what size do you run on the DON?

Look at my post above, then have a guess.

Woul bigger be better for more air flow then

Remember it is not so much ultimate flow that you need to achieve, instead you need to duct that pressurised air down to your intercooler and back again with as minimal pressure loss as possible.

Go too big with pipework size (and intercooler volume for that matter) and you'll find the engine may take marginally longer to come on boost.

hmmm tht was quite stupid really wasnt it.

*hangs head and walks away*
:(