Hi,

I have a problem on my 3rd gen (everything stock except downpipe) for about 2 years now :-( After starting cold I have full boost for about ~ 20 minutes. After that car looses power and turbo sounds different, like it spools not as high as before. We checked or replaced every hose with no success. Power over 4'500rpm is always good. Any ideas?
While engine-temperature should not have anything to do with any leaks in a hose, thats very strange?!

Thanks a lot
Gizmo

 

I don't have a clue about your specific problem but I recommend reading the Turbo Troubleshooting Link in the 3rd gen FAQ thread and following the troubleshooting procedures in that link.

Here it is for your convenience:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/

If you are going to stick around the forum, read the RULES thread stickied in this forum and complete your location