turbo to spool at 12-1500

[FordGuy100]

I can have 9psi by 2000 rpms', thats what mine is wastegated too. I can hit 1psi at 1000 rpm's in 4th. 3psi at 1500rpm's. Keep in mind I'm rolling coal all this time, definatly not the best thing to do.

When we did my turbo instal at Russ's work (Typ4), we saw a Gen set with a Jonh Deere diesel (?), anyways, used the same type of turbo just way smaller housings. I thought it would be cool to make a sequential setup with it, cause I figure that thing would spool really really quick. Would be nice to cruise along at 1300psi with 2+psi of boost with no problem.

 

[91f2504x4]

what would i find one of these in?

"off topic" my buddy has a 04 6.0 6 speed similar to yours with the same chip. How do you like driving that rocket ship? His is crazy fast.

They are on ebay all the time, but if you know of any truck pullers around that run a dodge they will probably sell you one for a lot less, the cummins pulling crowd usually take them off for pulling and go to a much larger charger. The only reason they are so high on ebay is because the "ricer" crowd found out that they could spool these pretty good at 4,000+ rpms and make 30+ pounds of boost if they want.

I love my 2004 6.0L, the worst part is the payment, and with these crappy economic times I would let it go for the right price, but I would still feel sick for a while if I got rid of it. It is pretty fast though, I love getting up beside one of the young kids around here in thier import cars that are all stock but an obnoxious muffler (But they think that makes it fast) and spool up the turbo and then leave them sitting when the light turns green.The turbo is insanely loud too with the straight 4" exhaust. It was a little bit quicker off the line before the 315/75's but it will still take off like a rocket if you spool the turbo before you take off. I hate that My warranty is about to end and I don't even have 70,000 miles yet, for the longest time I only drove it when I needed to pull a trailer because I never had time for a life outside of my job (5oh).

The hy35 holset will typically be found on 24 valve trucks with automatic transmissions. The HE351 turbo will typically be found on later trucks like around the 03, 04 years, anything much newer and you get into the variable geometry turbos which would be awesome if you made a controller, I thought about doing that because I have an HE351VE sitting here in the garage but I haven't tackled that task yet.

 

[Chevyboy_0]

What do you mean make a controller? And how do the variable geometry tubos work? Someone tried to explain it to me once but failed oh so miserably

 

[91f2504x4]

What do you mean make a controller? And how do the variable geometry tubos work? Someone tried to explain it to me once but failed oh so miserably

Well you need a controller to make the turbo work as it is desigined. A variable geometry turbo works by altering a set of vains within the exhaust housing to be closer or farther away from the exhaust wheel, when they are close it allows a smaller amount of exhaust to spool the turbo but as you increase the RPMs, the amount of exhaust increases and to prevent overspeeding of the turbo, the vains open up allowing the turbo to be driven within a safe speed. It allows the turbo to function efficiently within a bigger range of RPMs.

A controller reads RPMs of the turbo and the amount of boost and sometimes backpressure and uses this information to control the unison ring which positions the vanes in the exhaust housing. One could also rig up a type of wastegate actuator to do this but could risk overspeeding the turbo if it was not done properly, you could also just remove the electronics and use a threaded rod to adjust the turbo to one setting and leave it there, it defeats the VGT functions but does make it an adjustable turbo.

 

[jactoy4x4]

Well you need a controller to make the turbo work as it is desigined. A variable geometry turbo works by altering a set of vains within the exhaust housing to be closer or farther away from the exhaust wheel, when they are close it allows a smaller amount of exhaust to spool the turbo but as you increase the RPMs, the amount of exhaust increases and to prevent overspeeding of the turbo, the vains open up allowing the turbo to be driven withen a safe speed. It allows the turbo to function efficiently within a bigger range of RPMs.

A controller reads RPMs of the turbo and the amount of boost and sometimes backpressure and uses this information to control the unison ring which positions the vanes in the exhaust housing. One could also rig up a type of wastegate actuator to do this but could risk overspeeding the turbo if it was not done properly, you could also just use remove the electronics and use a threaded rod to adjust the turbo to one setting and leave it there, it defeats the VGT functions but does make it an adjustable turbo.

Great info there. Thanks. I will definitely keep my eye out and hopefully be gathering parts to make this push some boost in the next few months.

As far as your 6.0 goes. I have driven my buddies a few times and its a kick in the ass. Just couldnt do it everyday cause id lose my license in a heartbeat with as fast as she goes.

 

[ghunt]

One thing I thought I might fill you guys in on, as I was told recently- Holsets all have divided inlets on their turbine housings.

Unless you have a divided manifold or entry going to them (which we do not), the internal wastegate won't work right and you will have boost control problems.

I found this out when I got this cool Schwitzer turbo for my thunderbird, and it has an internal wastegate. I'm having to go with an external wastegate on it.