hi guys,

need some advice/help please

i have been out using my turbo sigma kit car done around 120 miles with no issues.

yesterday all was going well then it stopped holding boost and making a sort of whining or slipping noise under load

performance was rubbish, but it selected gears fine, lipped it home and was convinced it was the clutch and i had got something wrong in terms of clearances.

ive pulled the engine this morning and i dont think it is the clutch it dost look bad and its more than up to the job of the current low boost power level

where do i need to be looking next?

main boost pipes are fine were tight and are new no holes in them that i can see.

checked the external wastegate diafram and thats fine, blanked the feeds to it and blew down them no leaks there

any ideas what next to try, im due on the rollers friday to finish mapping and need to sort this asap!

i have pics of the clutch etc... and engine setup if anyone thinks they may be of use

thanks

 

Sounds turbo related. How does the turbo look?

 

What turbo ya got and was it a recon

 

It's a new gt2871r done 100 miles ish and a little dyno work,

No smoke or rattles, anyway of testing it while its on engine but not running?

What's the best way to test for boost leaks too