Kaiser

iTrader: (1)

This run is 2-3 months old. I'm currently running about 16-17psi. The car is a 94 GS300 full Aristo swap with a 60-1 P trim .70AR on both sides. 3" turbo back, XS power manifold, custom intercooler set up. Only fuel management is an AFC. I also have these runs split into second and third gears and by RPM if anyone really wants to see them.

Epik

iTrader: (7)

Chris..what method were you using to dyno again? Start in 2nd on the pull and has one shift?

Like i told you on the phone, the dyno being screwed up the only way i could get it to record a pull was to stay in drive and run from 40-140.. so 2 shifts.

very nice #s though on yours. i think the 60-1 is perfect for your uses.. quick spool and more power to be had...on th eother hand, there is a guy on SF selling a pair of gt35r's at 900 a pop.

Epik

iTrader: (7)

check my thread.. just posted my sheet.

Kaiser

iTrader: (1)

I start rolling and get to about 40-45 and then mash it. Run through 2nd and through 3rd and let off before 4th. I gather more data that way. Looking at my chart you see that the O2 sensor is still in control in the beginning which is why it is so lean. Then it goes down to about 12:1 about 3.5 seconds into the run. Remember there is a time delay in the recording due to the length of the exhaust and hose going to the sniffer brain so it's actually quick to go rich than it shows. Then the shift where the load is disengaged, timing is pulled as well as fuel to prevent an over rev, then right back down to 12:1 with the map sensor. I think the heater element is blown out in the O2 and I'm trying to order a new sensor from Australia. The US supra O2 4 wires and the Aristo is three.

Abear

iTrader: (1)

The numbers seem a little low for 12psi and a 60 trim. I bet if feels nice though..*sigh*..one day I will have a snail under the hood.

Kaiser

iTrader: (1)

Considering the US Supra does 280ish on 11psi, I don't think it's too bad. I've got the JDM cams and those heavy wheels to boot.

Abear

iTrader: (1)

Yeah, your right. But thats on the stock twins.
Most of the NA-T guys get around 300 on 8psi.
They are still impressive numbers, and your car is still turbo, Im not tryin to bash, I think its awesome that all these 1st gens are goin turbo, makes me really mad I moved.

Kaiser

iTrader: (1)

I know you're not bashing Abear, I'm justifying it to myself actually. I'm a little critical of my own work. The only 300 on 8psi I've seen is NA-T on a stock head gasket. That's 10:1 compression. I'm 8.5:1.

Abear

iTrader: (1)

AHHHH, I totatly forgot about the compression ratio on the GTE engine. Need to turn up the boost brother!

Epik

iTrader: (7)

he's already there.. just hasnt had the time to re-dyno since his BCC install.

Yes, that 1.5 drop in compression from the GE to the GTE is a major difference in off the line and spool. I saw a set of custom pistons for sale once, forged and 9.5:1 or maybe even higher. i had considered picking them up. the drop in compression is nothing but a safety window against detonation.. a good tuner can get around that safely and reap the benefits. (Power FC) Who knows what my next motor will have.

Abear

iTrader: (1)

Well hopefully when I finally go turbo, I will be able to pull 10psi out the stock compression. Just depends, I think I may try and work offshore for a couple of years so after that I can go back to school and not have to worry about money. So if that happens and I start makin good money, I will prolly upgrade the headgasket and boost about 15 pounds.