Ronnie's Twin Turbo GT500
- Thread starter CPRsm
- Start date
oil starvation?
CPRsm
Active Member
Won't know until it's taken part, but unlikely. They started the car with the turbo off and oil shot out. And these BB turbos have restrictors they because they need even less oil. Plus the shaft is free spinning. Compressor touched down on the compressor.
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wow. i asked because i had a new turbo go on initial tune from the banjo bolt filter failing. ever since then never ran a banjo filter. i wonder if they primed it first?
That sucks.
CPRsm
Active Member
Idk if they did or not. In all reality you don't need to. Turbos are built with a thicker oil in assembly for just that purpose. If you ever spin a turbo before install compared to after you will usually be able to feel a difference just by hand.
To clear a few things up. Yes it had plenty of oil supply. The problem is with the turbo. The main shaft bent causing the impeller to rub On the housing just slightly and causing it to jamb up. A new one will be on it's way asap so we can get Ronnie his car back. Minor setbacks that no one could have avoided or even forseen. That is how things go in the performance world and that is why products have a warranty. Precision is going to take care of it I am sure and we will be back soon!
good to hear. Precision always had good customer service.
so you like it but not enough to be impatient?
They are a little slower than their stated "2 week turnaround" but they have opted to replace the turbo. Precision states it should go out later this week.
Assuming no additional hurdles are encountered, perhaps it'll go on the dyno next week.
Precision 6266 62mm turbos
Another interesting tidbit, CPRsm may be onto something regarding removing the intercooler from the intake manifold...during the dyno runs datalogs indicate that the IAT2 temps were only 20* over ambient.
Very interesting!
CPRsm
Active Member
Not bad for only an A/A unit huh ?
Lemme know what the inlets are at 25 psi. If they start to creep I have the fix.
Lemme know what the inlets are at 25 psi. If they start to creep I have the fix.
does this car have a W/I kit?
If W/I is water injection, no.
CPRsm
Active Member
Ronnie beat me to it lol.
Straight intercooler baby. We talked about it and I'm trying to keep a little heat in the inlets for when he goes E85. There is still quite a bit in that intercooler to keep it cool if need be. I left it as is for now because it will have faster recovery this way also.
Straight intercooler baby. We talked about it and I'm trying to keep a little heat in the inlets for when he goes E85. There is still quite a bit in that intercooler to keep it cool if need be. I left it as is for now because it will have faster recovery this way also.
More info:
pump gas 15psi = ~720 rwhp
pump gas + torco 18psi = ~830 rwhp
pump gas + torco 23psi = ~970 rwhp (860 rwtq) but we ran out of fuel at 6000rpm
In desperate need of a fuel system! Going to head back in a few weeks for the installation of exhaust cutouts, finalizing a few details, and going to try a 28psi C16 dyno run!!
In hindsight, I now wish I had opted for a full 3" exhaust. With the H-pipe and Corsa mufflers, this thing is quiet! I think a stock exhaust is louder than mine.
And there may be a rear gear swap in the future. The 3.73s require too much shifting! Going to try a 1" taller rear tire and then if needed 3.55s.
This thing is a monster. Took longer than anticipated but I am very pleased with the almost final results!
pump gas 15psi = ~720 rwhp
pump gas + torco 18psi = ~830 rwhp
pump gas + torco 23psi = ~970 rwhp (860 rwtq) but we ran out of fuel at 6000rpm
In desperate need of a fuel system! Going to head back in a few weeks for the installation of exhaust cutouts, finalizing a few details, and going to try a 28psi C16 dyno run!!
In hindsight, I now wish I had opted for a full 3" exhaust. With the H-pipe and Corsa mufflers, this thing is quiet! I think a stock exhaust is louder than mine.
And there may be a rear gear swap in the future. The 3.73s require too much shifting! Going to try a 1" taller rear tire and then if needed 3.55s.
This thing is a monster. Took longer than anticipated but I am very pleased with the almost final results!
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