Power FC a few charts for fun! almost 17psi on stock seq twins
#1
a few charts for fun! almost 17psi on stock seq twins
relevant mods:
INHALE:
M2 airbox, ASP large SMIC, upgraded y-pipe
EXHALE:
SMB 4inch downpipe, SMB 3.5inch metal cat resonated midpipe, RB 3inch Dual Catback
BURN:
550/1300 injectors, HKS Twinpower, BR10EIX plugs all around
BRAIN:
PFC - controlling boost as well (settings 1.3/100 1.3/80)
Using a v7.07 base map with only injector size and timing map changes, fuel is not tuned
Run done in 3rd gear, didn't take to redline because ran out of road.
boost 15-10-16.5
max duty cycle 77%
comments?
INHALE:
M2 airbox, ASP large SMIC, upgraded y-pipe
EXHALE:
SMB 4inch downpipe, SMB 3.5inch metal cat resonated midpipe, RB 3inch Dual Catback
BURN:
550/1300 injectors, HKS Twinpower, BR10EIX plugs all around
BRAIN:
PFC - controlling boost as well (settings 1.3/100 1.3/80)
Using a v7.07 base map with only injector size and timing map changes, fuel is not tuned
Run done in 3rd gear, didn't take to redline because ran out of road.
boost 15-10-16.5
max duty cycle 77%
comments?
Last edited by neit_jnf; 11-30-08 at 04:17 AM.
#3
i dont run them that high all the time, i usually daily drive at 9 psi. i've only done about 5 or 6 3rd gear pulls at 17psi
ait's remain in check, no higher that at low boost
i plan to dyno it after i trim the fuel a bit and see what it gets. tom94rx7 runs them at 19-20 psi and has consistent very low 11s quarter mile times
ait's remain in check, no higher that at low boost
i plan to dyno it after i trim the fuel a bit and see what it gets. tom94rx7 runs them at 19-20 psi and has consistent very low 11s quarter mile times
#7
Me neither. I'm running 14-9-14 psi at the moment with dual Hallman MBCs and have perfect, repeatable fine-grained control of both primary and secondary boost but my pre-control boost will not build up beyond 8-9 psi.
My current theory (and I've had lots) is that the pre-control wastegate will simply not flow enough when it is venting primary boost to spool the secondary beyond 8-9 psi. I've though about porting the pre-control wastegate but that may simply reduce primary boost.
I hope I'm wrong. I've seen reports of 14-12-14 psi boost patterns but I'd like to see the logs - I don't trust boost gauge reports.
My current theory (and I've had lots) is that the pre-control wastegate will simply not flow enough when it is venting primary boost to spool the secondary beyond 8-9 psi. I've though about porting the pre-control wastegate but that may simply reduce primary boost.
I hope I'm wrong. I've seen reports of 14-12-14 psi boost patterns but I'd like to see the logs - I don't trust boost gauge reports.
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