gt42

soulezoo said:
That's the setup I started with... except the bottom was a gt4208r. It really rocks.

I don't get the earlier statement about a stage 3 not lighting... something definitely wrong there. Hell, even now that I am using a gt4094r on top with a .99 A/R, it still spools as fast as a HE351e.
Click to expand...
The GT4208R? is that a modified 4202 I'v never seen that on Garretts site. & what turbos are you using now? I know the GT4094R up top but what is the bottom turbo GT4508R? Im only asking bec as soon as my bike sells Im wanting to start buying the parts to build the compound kit. TIA
 
soulezoo said:
That's the setup I started with... except the bottom was a gt4208r. It really rocks.

I don't get the earlier statement about a stage 3 not lighting... something definitely wrong there. Hell, even now that I am using a gt4094r on top with a .99 A/R, it still spools as fast as a HE351e.
Click to expand...
& also Did Peak diesel build you the kit or did you get all the piping from them? I am just having a little trubble finding out ware to get all the parts from. Again TIA
 
Oh and one more question. What exhaust flange does the GT42 turbos have? Is it the T-6?
 
Mopar Man said:
Oh and one more question. What exhaust flange does the GT42 turbos have? Is it the T-6?
Click to expand...

They come with either T4's or T6's, but there is only 2 A/R choices with the T6 IIRC. You can also get a stainless housing with a v-band inlet. Thats what I got for my set.
 
Tate said:
They come with either T4's or T6's, but there is only 2 A/R choices with the T6 IIRC. You can also get a stainless housing with a v-band inlet. Thats what I got for my set.
Click to expand...

They can be made with a T3 foot as well...I got one!:charger:
 
Mopar Man said:
My GT3788R spools fast as hell! I can get over 40 PSI of boost at 1500 RPM. Did you not have the mods to support it?
Click to expand...

What size are the wheels on the Turbo-Resource GT3788r?
How many hp will it support on a 12v?
 
Acording to Tom @ turbo Re-source they flow 71 lbs per min. Im not argueing or anything I dont have flow charts in front of me Im just quoting what tom told me last week when I spoke with him.
 
everyone says different things, and the turbo will move 71lb/min, but its off the efficiency map at that point.
 
If you don't mind me hi-jackin once more.......................
1. What's the turbine wheel size and housing A/R?
2. For comparisons sake, what's the lbs per min for my 62/71/.80?
 
its a 63.5/72.5/0.89, which is around a 14.5-15, but IMO the turbo is much better w/ the 0.99a/r housing which is a 16.

your 62 flows 65lb/min, so about the same. the BW turbos are more efficent than the garrets.
 
98andahalf said:
you could get it to spool quicker if it is a divided (twin scroll) exhaust housing by using an actuator operated block-off door on one of the ports. It closes off one of the ports so it turns a 26cm exhaust housing into something like a 13cm exhaust housing and then once you get past a certain psi, the door opens to relieve excess back pressure and help the turbo flow much more in the high boost levels
36433.jpg
Click to expand...

Does it matter which side you want to direct the flow of the exhaust into the turbine housing?
 
umm......dunno, from the looks of it I would say that it doesnt matter. And do you actually own a GLHS???
 
According to sound performance's testing it does not matter. It may make sense to keep the open side toward the turbine outlet as that would be the volute directed toward the largest part of the turbine wheel i'm thinking. Further, although very marginal at best, it may help to keep additional heat soak from the compressor.
 
You must log in or register to reply here.
Back
Top