neit_jnf

iTrader: (17)

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?

thewird

iTrader: (8)

Bets on how long the turbo's will last?

Also, your not making more power by running the turbo so high, its out of its efficiency range. Your just stressing the turbo's and generating a ton of heat for no reason.

thewird

neit_jnf

iTrader: (17)

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

moconnor

iTrader: (14)

You are obscuring the Y axis scale.

That is a brutal looking transition.

neit_jnf

iTrader: (17)

i didnt set the y scale correctly i think, it goes 0 to 250 but it doesnt correlate to anything thats why i opened the watches and started looking at the values.

arghx

iTrader: (3)

I can't seem to get more than 10psi during transition either...

moconnor

iTrader: (14)

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.