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Old Jan 8, 2007 | 11:27 AM
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Bftsupra
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Default Help ne, MkIII Supra Tuners

Any supra tuners out there? I put a new turbo on my car last week and am having a hard time tuning it properly. It is a gt35r with .82 a/r turbine.

I am using safc 2 and LM 1 wideband to tune it. First few runs it were pig rich and getting fuel cut like mad.

I turned the afpr down to about 30 psi with the vac hose off, but still am having to put in so much correction with the safc 2 that it is pulling timing.

So far It looks like this:
2400rpm - +5% corr - 15.7 af
3000rpm - +5% corr - 12.1 af
3600rpm - -25% corr - 11.7 af
4200rpm - -30% corr - 12.5 af
4800rpm - -28% corr - 11.2 af
5400rpm - -32% corr - 10.4 af
6000rpm - -20% corr - 10.5 af
2400rpm - -24% corr - 10.7 af

I am trying to get 11.8 -12 af. This is boosting at 15 psi, but I really hoped to run this at about 20 psi.

Pulls great from aobut 3500 to about 5000 or so where it softens up a lot presumably from timing being pulled.

Any one know what I need to do next?
I tried to get Ryan at XAT to look at it, but he no longer works there. Anyone know where he went?
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