BEGI Shanghai - lean under WOT
#1
BEGI Shanghai - lean under WOT
Problem is that AFR is ~13.2 under WOT and fuel pressure gauge shows only 70PSI(after closing needle valve shut, before only 60 and dropping) first and then drops ~65PSI which is way less than described in manual. Under part throttle it shows 11.6 to 12.5
Idle and vacuum pressures are as described in BEGI manual and when line is closed shut it shows 85+PSI on idle
Question is what to do next?
Replace injectors to toyota 315cc(as i have them) and tune or
Replace fuel pump ( I could get 190LPH or 255LPH for good price)
Idle and vacuum pressures are as described in BEGI manual and when line is closed shut it shows 85+PSI on idle
Question is what to do next?
Replace injectors to toyota 315cc(as i have them) and tune or
Replace fuel pump ( I could get 190LPH or 255LPH for good price)
#6
I'll give them a try then.
When i searched web for injector codes i found following info on toyota 315cc ones:
http://www.witchhunter.com/flowdatapix/d2325074080.jpg
and according to same website supra ones are actually stronger (took the part code from Miata Turbo Wiki page)
http://www.witchhunter.com/flowdatapix/d2325070080.jpg
When i searched web for injector codes i found following info on toyota 315cc ones:
http://www.witchhunter.com/flowdatapix/d2325074080.jpg
and according to same website supra ones are actually stronger (took the part code from Miata Turbo Wiki page)
http://www.witchhunter.com/flowdatapix/d2325070080.jpg
#7
https://www.miataturbo.net/useful-saved-posts-8/diy-faq-all-your-answers-one-big-post-10821/
this thread has good info on everything and answers to your injector question!
this thread has good info on everything and answers to your injector question!
#9
Success after installing toyota 315cc injectors.
Once injectors were in place, car started right away (AFR ~11 on idle).
Tuned a bit using idle mixture screw on AFM and got idle AFR back to ~14.7
Now under boost AFR is ~10.8-11.1 ( need more tune on airfield as on road it's bit difficult). Also capped BKR7E-11 plugs to 0.8mm instead 1.1mm
190LPH pump is on order.
Once injectors were in place, car started right away (AFR ~11 on idle).
Tuned a bit using idle mixture screw on AFM and got idle AFR back to ~14.7
Now under boost AFR is ~10.8-11.1 ( need more tune on airfield as on road it's bit difficult). Also capped BKR7E-11 plugs to 0.8mm instead 1.1mm
190LPH pump is on order.
#11
Success after installing toyota 315cc injectors.
Once injectors were in place, car started right away (AFR ~11 on idle).
Tuned a bit using idle mixture screw on AFM and got idle AFR back to ~14.7
Now under boost AFR is ~10.8-11.1 ( need more tune on airfield as on road it's bit difficult). Also capped BKR7E-11 plugs to 0.8mm instead 1.1mm
190LPH pump is on order.
Once injectors were in place, car started right away (AFR ~11 on idle).
Tuned a bit using idle mixture screw on AFM and got idle AFR back to ~14.7
Now under boost AFR is ~10.8-11.1 ( need more tune on airfield as on road it's bit difficult). Also capped BKR7E-11 plugs to 0.8mm instead 1.1mm
190LPH pump is on order.
didn't your car run filthy rich just cruising? before you hit the boost?
I remember when i put on supra injectors well 305cc without management and did what you did, it ran fine underboost but for normal cruising it was running relatively around 11ish for afr.
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