Turbo oil hoses

[peterguk]

Do the M400 turbo oil hoses have flow restrictors in them?

I know that some Garrett turbos like to have flow restrictors to protect the oil seals..

[joust]

Nothing mentioned in the US build manual about them.

J

[peterguk]

Thanks

I'll try probing down the hose with a suitable diameter wire and report back.

[caccobra]

It actually should be mounted at the oil inlet on each turbo and then the oil feed line is connected to it. Most Nobles in the US did not have them installed during the engine installation. You are correct that the Installation Manual makes no mention of it. This was brought to my attention recently as well. I have mine now and will be installing them along with all new feed lines and drain lines that are much more stout than the OEM pieces. All of this was obtained from Hoover at www.turbohoses.com.

[peterguk]

Cool.

I have some that we use on our MR2 Turbo builds. 0.060" IIRC.