BoOsTin FD

I've been searching this forum and the other one but i still don't know what to do. Here are the sympthoms: I get 10 psi before 4500 then 8 and the 10 till 5500 after that it goes to 9 psi and stays till end. Before that it was 8 psi. Then i found a thread on this forum about CRV hose and i changed it.

I thought that was going to be a fix but it only fixed one psi, I still need to get one more. I don't know what else to do.

I changed CRV hose, and switched first bov to second cause i have HKS BOV on first turbo. I tightened all the hoses and put new clamps on both bovs and the rest of the stuff.

I checked the secondary turbo by T-ing the boost gauge in the small hose behind the 2nd crv and i got 12 psi after4500.

IS there anything else i can check or do?
I know this question has been asked a milion times but i searched and i that's how i found out about this stuff that i did, but still i need one more psi.

Thanks

johnchabin

iTrader: (2)

From http://www.scuderiaciriani.com/rx7/boost_problems.html

Drive to third gear with normal acceleration

Accelerate from 35 MPH at WOT until passing 4,500 RPM

A slight and smooth increase in power should be felt at approximately 4,500 RPM. This will be about 65 MPH.

RPM PSI
3,000 10
4,500 8 as secondary turbo comes on
4,500 + 10 recovers almost immediately
6,000 + 8 and holds to redline

These readings indicate normal operation. Readings will vary with altitude and temperature, (i.e. lower temperature = higher boost).

johnchabin

iTrader: (2)

Sorry, I just looked at your mods. You're right, you should be able to hold 10 psi to redline.

BoOsTin FD

Any ideas on what should i check now?