I have now deleted a wastegate. Welcome to the world of ATT

[handcannon]

They say you don't need w/m or i/c with the ATT but since it is on the truck and ready to go I'm hoping I'll really get up hills quick. Ed

I'm interested in the results.

Don

 

[great white]

I have the 5 and 10 gph nozzles hooked up. I am planning to continue using the w/m, I'll see if the present controller works any better with the ATT seeing as it is a boost activated controller. It is setup with a toggle right now so it is all or nothing for spray as I have the controller set for full on at 2lbs boost. If I don't see a change with removing the toggle switch I may just get an egt based controller and this will work http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=190286130870&ssPageName=STRK:MEWAX:IT

On the gm-8 turbo the results were it did knock the egt's down substantially. Didn't need w/m on flat stretches but get into the mountains and it was worth the money. It wouldn't necessarily drop the egt's but hold them in check when going up a hill, depending on the grade the egt's would stay about the same or rise a whole lot more slowly than if not using w/m. They say you don't need w/m or i/c with the ATT but since it is on the truck and ready to go I'm hoping I'll really get up hills quick. Ed

Are you running meth or just straight water ed?

The egt controller you linked to is the one I have in my truck:

Works great!

Only problem is, if you tap off the egt harness, it will read wrong. Now, if you use the programable 5v out in the guage, it could trigger the WI.

Do yourself a favor and go to Auberins.com (they're the ones selling those guages) and order it there. When you do order, get the 1/8 k thermocouple instead of the 1/4 british thermocouple on the ebay auction. It's a bear trying to find a tap for it and god help you if you ever have to replace it. You can get a 1/8 harness almost anywhere, the british one is a PITA....

I've also got an auber boost guage. The good thing about that is that it uses a seperate 3 bar sensor and I can tap off that one to trigger the WI instead of the PCM one. It's just a standard GM 3 bar sensor with thier sticker on it, so it's readily available at any parts store if it goes "tits up".

I was also thinking of using an EGT trigger, but I'll probably buy the one from Chance at DO. Then it's a simple matter of adding a second "K" 1/8 thermocouple pre turbo.

I've got a 7 and a 10 GPH "microdroplet" nozzle. I'll probably start with the 7, move to the 10 if it doesn't keep egts in check.

I'm running a single, I've noticed you run duals.

Do you spray both your 5 and 10 at the same time?

 

[Edzzed]

I only run straight water, I read on Heath's site that he recommends no more than 10% meth. I did go to their auberins web site. I am thinking of removing my egt gauge and replacing it with one of their units so that when the egt temp comes up it'll turn my w/m on full. They do say it accepts most every probe on the market so mine should work. Sure it'll be full on but when the egt's are high it won't matter. I'll also put a toggle switch inline so I can shut off spray any time. I run both a 5 and 10 gph and have no complaints. I thought about buying the egt controller from DO however think it's cheaper going this route. Spent a wee bit too much this year as it is. Ed

 

[great white]

...Spent a wee bit too much this year as it is. Ed

I hear that!

 

[Edzzed]

So I took the truck n trailer camping for a few days. At the top of the Coquihalla hill I was doing a measly 20-25 miles per hour. I couldn't see 50 feet in front of me due to fog and intense snow. I just pulled over at a rest stop, had a huge rye n coke and went to bed. woke up to 3 inches of snow. later that day at the lake i'm out in the boat with no jacket on. weird weather. All in all I am pretty happy with the way the truck tows. I had hoped to keep my w/m setup as it works better with the ATT, ie not spiking the boost every time you tap the pedal. I will be getting rid of my controller altogether though and just run it manually when I want spray. Just for giggles I decided to see how high I can spike the egt's. 1400 can be easily had. w/m will stop the egt's at 1400 as well but then it takes longer to get the temperature up there. I might need heaths towing tune. Miles per gallon. I kept track and here are the #'s. 88.808 liters used for 365 kms by the truck or 358 kms as done by the gps. guess my speedo is out. if we assume 361 miles for 88.808 liters it works out to be 9.56 US mpg or 11.48 Canadian mpg. This is with a truck that weighs 1690 front wheels, 2360 rear wheels, 2290 trailer and all in Kilograms.

 

[great white]

So, 25 mph was because of the fog or because the truck didn't have "the poop" to go any faster?

 

[Edzzed]

So, 25 mph was because of the fog or because the truck didn't have "the poop" to go any faster?

FOG, I didn't wanna run off the road or into a car that was going even slower.

 

[Slim Shady]

So now you see that the turbo boost is pretty responsive under load. Hit go pedal and boost goes up with pedal movement. After a good haul the truck will certainly run a little better.

 

[Edzzed]

I did my mileage calculations and am at 9.01 miles per US gallon and that was towing about 8,000 pounds of trailer, supplies and everything else over a distance of 1018 kms. Works out to be 11.20 miles per Canadian gallon. Does that sound reasonable. I never really ever kept track of mileage but wanted to do it for towing.

 

[Edzzed]

Bringing up an old thread. I had to redo my after market exhaust with another diamond eye. Everything is now tight and new. Funny, i used to get soot on take off and quite a bit. That is no longer the case. I think you need a sealed pipe to wake up the turbo. I am now impressed with my trucks get up and gone attitude. I can't wait till April when I haul the trailer to the campsite. I want to sneak it out now. Hoping to post new video soon. here is a vid from two years ago http://vid130.photobucket.com/albums/p242/edzzed/ztruck012.mp4

 

[Burning oil]

New vids will be great. Glad you got it running great.