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Engine Specific Info and Questions => IDI Engine => Topic started by: TD Passat on October 18, 2005, 05:03:05 am

Title: Boost question on 1.9TD
Post by: TD Passat on October 18, 2005, 05:03:05 am

How can i go about turning the boost up more than 13psi? I am at the end of the actuator rod but i am looking to run 15-16psi. Any ideas or info on how to get more boost.

Apart from changing the actuator.

Craig

Title: Boost question on 1.9TD
Post by: Maarten on October 18, 2005, 05:10:15 am

More fuel... more fuel results in more exhaustgasses that will spin the turbo :)

But beware of high exhaust temps and the stock turbo can't take much abuse (mine failed in a few weeks @1.2bar)

Title: Boost question on 1.9TD
Post by: QuickTD on October 18, 2005, 05:42:52 am

Depending on your wastegate spring (they can vary a bit) you might also need to run a bleed or a "dawes device" type of boost controller to get the boost higher than stock.

Title: Boost question on 1.9TD
Post by: Maarten on October 18, 2005, 06:10:36 am

On my small turbo I disconnected the line to the wastegate to keep it shut, it ran 1.2bar max with some extra fuel.

Title: Boost question on 1.9TD
Post by: TD Passat on October 18, 2005, 06:39:04 am

Thanks for the replies!
Just serviced the Passat and ran some 10K Boost through it. Loads of smoke (build up ) and it feels smoother than before.

Craig