Well, what's the word? I'm doing a little marketing study. How many of you are planning on buying this turbo? Retail street price will be in the $1400-1500 range.

Rob,
I would need to know power levels and different pressures, and lag, driveability, etc. and what would be a good intercooler to match it, etc. What are the specs on it? what is the max psi it can sustain on C16 race gas?
JCC

i will buy it. guess i will have to start putting some money away so that when it does come out, i am ready for it.

about when will it hit the street?

what exactly is included with this 1400-1500 estimated price? is it just the turbo or turbo w/ manifold or what

Originally posted by UcLaGeE
what exactly is included with this 1400-1500 estimated price? is it just the turbo or turbo w/ manifold or what

Just the turbo

Originally posted by JCGator42
Rob,
I would need to know power levels and different pressures, and lag, driveability, etc. and what would be a good intercooler to match it, etc. What are the specs on it? what is the max psi it can sustain on C16 race gas?
JCC

The turbo made 286 to the wheels at 14.5 psi with a 2.5" exhaust, pump gas, and a cat.

I think that the turbo should be good for up to 18 psi without pushing it too hard. At that point, I think that it will support about 300-310 whp, depending on tuning and stuff.

The car makes 10 psi of boost at 2500 RPM in 2nd gear with a 2.5" exhaust, a big front mount intercooler, and a cat. The best thing about it is the throttle response. It feels super snappy off the line, like a big displacement motor. You can hear the turbo sucking air and making boost at light throttle, when you still have intake manifold vacuum. In my opinion, throttle response and lag are better than a T-25, and the turbo will support more power than a Pulsar T-28. I think that this is the ultimate street car turbo.

I'd recomend this turbo with a GTi-R manifold and probably the F-Max intercooler. For 14-16 psi or so, I would just use the stock internal wastegate, with an HKS or Greddy Type R blow off valve.

This turbo should work really well with a Cobra MAF and 50 lb injectors set at the 3 bar program. The drivability is this setup is first rate.

isn't traction a huge problem with the disco potato? Could it be because the turbo kicks in at such a low rpm that the wheels loose their grip? Sometimes you want your turbo to come in a little later rather than right away.

The reason it has problem with wheelspin is the close ratio tranny.

The Tater doesn't even have cams, either, does it? With a little better breathing in the head, waaay better breathing with the exhaust, maybe a test pipe and some tuning...sheesh, what a street monster! And hauling 400-800 lbs less than your average pony car! Whee!

Way to go, Rob. I guess my next spare $1,500 bill is spoken for.

Thank you much? ;)

Just out of curiosity, since I have no money for this now. How does this turbo compare to a GT2835? If and when I go turbo, I'll probably get a T-28. But if I had money for a setup like this, I'd always thought the GT seemed like it would fit better for what I'm looking for. Nothing crazy, but fun for a daily driver. And reaaly fun at the track!
Jason

our cars should see a little more power out of this turbo, as the cylinder head/manifold on B15 sentras are even worse than the B14. unless the DP has head work of course.

i am mainly going to get this turbo so that i can keep the excellent low end response of a small turbo, along with the great mid-high range power some of the bigger turbos offer.

hey Rob, do you know where the dyno curve to the DP is?

Originally posted by kafn8ed
Just out of curiosity, since I have no money for this now. How does this turbo compare to a GT2835? If and when I go turbo, I'll probably get a T-28. But if I had money for a setup like this, I'd always thought the GT seemed like it would fit better for what I'm looking for. Nothing crazy, but fun for a daily driver. And reaaly fun at the track!
Jason

It's a little lower flowing on the compressor side than the GT2835, but it has a much lower turbine-to-compressor speed mismatch and therefore higher turbine efficiency. It also has lower rotor group inertia, so it has better transient response and better drivability.

This is a tough decision for me. Do I spend the extra money over the GTi-R turbo or not? I can reach my power goal with the GTi-R turbo (around 250whp), so is the throttle response and less lag worth the extra money for the DP turbo?

Twist that knife a little harder, willya'? ;) D/P has a low-port head similar to a B14s. I don't know which head it has, but it ain't a B15 head. I'm also disappointed by the fact that it uses an old-style MAF sensor (as opposed to a B15 unit), a Silvia clutch, and some oddball transmission that isn't even available in the US.

Kickass turbo, though. :D

The DP has C1 cams in it. It was converted to a non roller rocker valvetrain. It also has lower compression 8.5:1 pistons among other things.

all i gota say is go price out a new turbo from various vendors and see how it prices out. its not a bad deal if you are buying a new turbo.

yeah, and since its a geniuine new garrett peice, it will last forever (assuming good maintenance)

they design these things to last longer than the car. try doing that with a rebuilt/older design turbo.

I can reach my power goal with the GTi-R turbo (around 250whp

i did 250 whp on a T25, even with my poor little 370's at static fuel delivery. granted, i was pushing it, but still...

i hope i can hit 11s with the DP turbo at FULL song...dont know if it will happen, but i guess i will have to find out.

also, hey Rob, what is the diameter of the compressor housing? i am trying to find out if it will fit the Avenir manifold, as it situates the manifold farther from the block.

also, do you use the GTiR T28 downpipe elbow? or will a custom downpipe have to be made?

I'm going to make this a sticky until I close the thread in the next couple of days. Please vote, everyone, even if you aren't interested. Your opinion matters.