another boost question.
#1
Full Member
Thread Starter
Join Date: Dec 2002
Location: md
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
another boost question.
I got a rebuilt motor and redid the rats nest with silicon vac hose. The motor was blown when i got it about two months ago. all is back together but when is drive i'm only getting about 2-3psi of boost. i read somewhere under the search that when you disconnect the wastegate control and the turbo control you get 5 psi of boost. So i did that and i got 5 psi consistantly. I changed the turbo control solenoid next to the acv. triple checked the vac lines for correct connection. Charge relief valve is shut at idle. i will check the vac lines off the wastegate and precontrol solenoids to the actuators, but any insight would be appreciated.
#2
RX-7 Bad Ass
iTrader: (55)
Check to make sure the charge control valve (the butterfly valve in the Y-pipe) isn't stuck open or opening when it shouldn't. Also, make sure the turbo control door is working properly.
Dale
Dale
#3
Full Member
Thread Starter
Join Date: Dec 2002
Location: md
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
k i ll check the turbo control actuator with a mity vac. as far as the butterfly valve in the y pipe, it is moving as according to http://www.autosportracetech.com/RX-...leshooting.htm.
#4
Moderator
iTrader: (7)
You can do a quick check of your CCV and TC Valve by doing the KOKO test:
http://www.fd3s.net/boost_test.html
Also verify that your system is storing pressure and vacuum properly.
Dave
http://www.fd3s.net/boost_test.html
Also verify that your system is storing pressure and vacuum properly.
Dave
#5
Full Member
Thread Starter
Join Date: Dec 2002
Location: md
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
ok I noticed that a wastegate control and a turbo precontrol vac hose popped off of each solenoid right behind the vac canister next to the plastic charge pipe. i plugged i t back together with new vac lines and drove it. now there is no primary boost. but if i goose the throttle it will some times go to 10 psi. but maybe 2 psi in first gear. the tca is connected and the rod is adjusted, fyi
Thread
Thread Starter
Forum
Replies
Last Post
Shainiac
Single Turbo RX-7's
12
07-17-19 02:20 PM
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM