stock 98 itr b18c, id1000's, blox log, 255 pump, 3" exhaust except for 2.5" dp, open WG, spal fan 14", 1/2 mish radiator. ice cold ac. Tuned on Neptune rtp E85.

The turbo is a t3t4ob super V stage II. .48 ar. on the dyno the turbo choked up around 7700 rpm 261whp then dropped like a rock. running 8psi. I know the obvious is to get a diff turbo.

Here is the tune question?
1. I want to get maximum performance for 1.4mile times, keep my ac, I am not asking for a map. just a plan if one could exist with this current setup. I am willing to double the air out of turbo till fall when I step up to larger turbo setup.
Thanks

 

Simply, yes. Go to a competent tuner and see about maximizing your setup. It may not be easy in Nebraska, but In IL, IN,OH, you have better luck

 

I have access to a dynojet and plenty of corn gas I was looking for a little more specific info. thanks

 

Just get a larger turbine housing, IMO. and then re-tune. With an .82 a/r you should be able to put out around 350.

 

Turn up the boost and keep tuning until you get to your power goal. That turbo isn't at its efficiency level yet you will find that once you turn up the boost the power falling at 7700 will rise again if you get a tuner that is half decent.

 

here is a picture of the dyno run 1 was in 3rd gear once in 3rd i went wot. 2nd run i fought to hold my foot and bring it to wot slower.

 

was making about 10hp per 100rpm
5000rpm 132hp 138tq. 5100rpm 145hp 150tq. 5200rpm 158hp 159tq. 5300rpm 165hp 164tq.
Leveled off and started dropping hp and tq.
7400rpm 260hp 185tq. 7500rpm 262hp 183tq. 7600rpm 261hp 181tq 7700rpm 261hp 178tq.
After seeing this changed my redline and revlimiter
8600rpm 157hp 96tq. 8700rpm 140hp 85tq 8800rpm 129hp 77tq.