I was told by a reputable mechanic to install a wastegate on my truck for added performance on the lower end. Right now the truck has a 6.2 with a banks turbo but no wastegate.

Does any body know how much this would cost? Where do you get them, etc?


TIA
Clay

Somebody correct me if I am wrong, but I don't think you can add a waste gate to a turbo that wasn't casted for a waste gate when it was made.

I am not 100% sure on this, but I do belive it would need a exhaust bypass port in the housing along with the valve and lever to operate it.

I am sure someone who has more info. will pipe up. :rolleyes:

pretty sure you have a waste gate....hes probrably talking about a blow off valve.....gasser guys kinda mix those terms up..

i kinda doubt a blow off valve would do much....unless your racing someone

banks turbo is non-wastegated i believe, it only builds to 7-10 psi boost. thats why its slower to spool up. it doesn't need one

Ok thank you.
The truck itself is a 1984 Chev 1-ton 4dr dually. I pull a 1982 25 foot camp trailer behind it and starting out its really low on power. The engine has been rebuilt. The only aftermarket item is the turbo, the rear end gear ratio is 4:11.

Is there any way of getting more power on the lower end?

Any ideas???

TIA
Clay

do you have a pyromeeter in it . if not you need one . Then you have a look at the exaust temp to find out wat's going wrong/wright ,

with bank's turbo there come an how-to-install .procedure .

you got it new .may be not

Thos turbo are non waistgate turbo and you adj the pressure with the pyromeeter and fueling the IP correctly .

If you found the booklet from brank's they write that you increase the fueling by 1/4 turn that's fine but if you looke deeper on the troubleshooting section IIRC they said at wot if the exaust temperature does not go 950F(or1050F) then increase 1/4 more fuel in the IP .

Of course the extra fuel will increase the boost around 10 psi but that's the goal .

and a turbo does not like behaviour gently the turbine get carbonized .

Ed

A wastegate is actually part of the exhaust side of a turbo housing whereas a blow-off valve is installed in-line with an intercooler pipe on a turbo'd application.

I don't see where either one will help at all with low end because they both serve the same purpose: limiting boost. With a 6.2, anything more than 10 will cause things to come apart in a rather abrupt manner which will most likely not be to your liking. :D

pretty sure you have a waste gate....hes probrably talking about a blow off valve.....gasser guys kinda mix those terms up..

i kinda doubt a blow off valve would do much....unless your racing someone

lots of folks do...

a bov wont do anything on a diesel...and they dont really "limit" boost. a blow off valve dumps the pressure when the carb/throttle body snaps shut to prevent damage to the butterfly valve. diesels have no valve so no pressure needs to be dumped

the banks turbo is internally waste gated to 10psi. if your boost gauge works and you are making around 10 psi you are fine there.

remember that diesels only need 2 things for big power: big air flow and big fuel. i would look for boost leaks, kinked exhaust and make sure that the fuel system is 100%. and if you dont have a pyro gauge you need one as a "fresh rebuild" can go belly up under a turbo in no time flat...

On my truck I have the stock exhaust manifolds, comes back to a cross over pipe and then goes through a custom muffler ( I dont know the make of the muffler), then dumps right before the rear tires.

I do have a boost gauge and it typically goes up to 10psi if I am really using the turbo with pulling etc. The Pyro meter is a different story, there is one on it but seldom works correctly. What exactly does the pyrometer do? Mine is measured in temps, is this correct?

The air cleaner is stock, (See attatched pics) other than someone before me cut out the other side to make it a dual intake kinda like a dual snorkel but with out the snorkels. I am still using the stock paper filter, (Wix brand), I have not messed with the fuel pressure fitting.

If I crank up the fuel pressure will this give me more power? I realize that I do have to sacrifice mpg if I do this.

TIA
Clay

what in the ????

how does that even work??

It must be a dummy, it can't possibly function because air is drawn in through the turbo inlet.

WOW, I have never seen a setup like that, your best bet would be to go get an air cleaner setup off of a '97 up 6.5TD, with an aftermarket filter. Next, get a working pyro gauge and just keep cranking fuel into it until you get your EGTs into the 950-1050 range that Banks suggests. BTW a pyrometer mesures your Exhaust Gas Temperature, if those are too high, then that means things are getting preatty toasty inside of the motor, and next thing you know you will start melting parts off of your engine.

The system you have does not require a wastegate. Banks put an oversize turbo on it. Other-words the AR. on the exhaust is designed for top end power not low end. So the turbo will typically not over boost or require a wastegate as it does not spool up that high.
Turning the fuel up will increase turbo boost and power. Need the pyro to make sure you don't go overboard with it. High temps will cook your motor.

The turbos that require a wastegate have small AR. exhaust housings for low end power. Being small they typically spool up quick. One draw back to that is the exhaust is restricted. This typically results in more fuel consumption as the restriction in size creates back pressure while you are cruising.

That's an ATS system not Banks .

whats with the stock air cleaner on there??

There's a chamber that has 2 sections . One sits higher and holds the air filter housing and the lower connects to the intake manifold . The 2 sections are on top of each other , that's why the air filter housing is located higher than the original location . Some people think the ATS actually works better than the Banks .

thats not a Banks turbo, thats an ATS turbo setup. I have one on my 82, like it much better than the banks on the 84 I have.
get your pyro working, then lets see what we can do. My 82 pulls a big heavy 23' offshore catamaran style hull down the road with no problems. you should be able to pull the tt with ease.
brian.

Thanks for responding.

This diesel and turbo is my first diesel and turbo ever, so I am still learning.

As far as the stock air cleaner setup, could I get away with using something different? Would it work better? I was thinking about running two air intake ducts through dryer ducts to the front of the truck.

Any other ideas?

TIA
Clay

Hi , that's what it should like ;)

http://i68.photobucket.com/albums/i29/tigman_photos/Silverado/000_0179.jpg

http://i68.photobucket.com/albums/i29/tigman_photos/Silverado/000_0180.jpg

http://i68.photobucket.com/albums/i29/tigman_photos/Silverado/000_0181.jpg

the air filter is on the fender passanger side you see it but not much details .it suck fresh air from the fenderin front of the wheel .


the double air inlet is useless on a turbo because the turbo that manages the volume of air in and the pressure. on an NA engine so the result is good, the engine breathe better.

http://i68.photobucket.com/albums/i29/tigman_photos/diesel/album_pic.jpg

Ed