Head studs and HTT

BlkMax

Member
Sep 1, 2008
743
4
18
Wasilla, AK
NOPE....:(
But I did get it running...:thumb: on the jack stands :(, I wanted to have clear access to the exhaust system in case of any exhaust leak caused by the HTT, the RDL uppies, or the BD manifold. So far no issues with the exhaust or the oil line.

I shut it off and then then I pulled the tank and installed the PPE pickup. The PPE lift pump and Caltracs are going on tomorrow (well today...)

The promised instructions are here: http://www.duramaxdiesels.com/forum/showthread.php?p=306397#post306397

It fired right up and ran great. When I finish the wiring for the boost pressure, drive pressure, and fuel pressure transmitters, I will load the new McRat tunes and go for a drive.

I was waylayed tonight because of the snow, we had over a foot yesterday and I needed to plow the driveway (with a '70 Chevy, 307-not my choice :mad:, and a 4 speed).

Thanx for asking.
 

soot04max

New member
Jul 14, 2008
221
0
0
Montgomery, Pa.
NOPE....:(
But I did get it running...:thumb: on the jack stands :(, I wanted to have clear access to the exhaust system in case of any exhaust leak caused by the HTT, the RDL uppies, or the BD manifold. So far no issues with the exhaust or the oil line.

I shut it off and then then I pulled the tank and installed the PPE pickup. The PPE lift pump and Caltracs are going on tomorrow (well today...)

The promised instructions are here: http://www.duramaxdiesels.com/forum/showthread.php?p=306397#post306397

It fired right up and ran great. When I finish the wiring for the boost pressure, drive pressure, and fuel pressure transmitters, I will load the new McRat tunes and go for a drive.

I was waylayed tonight because of the snow, we had over a foot yesterday and I needed to plow the driveway (with a '70 Chevy, 307-not my choice :mad:, and a 4 speed).

Thanx for asking.

any updates on how ya like the new set up?
 

BlkMax

Member
Sep 1, 2008
743
4
18
Wasilla, AK
any updates on how ya like the new set up?
Sorry,

Forgot about this post for a while. It has been running fantastic!

Mileage is up slightly if I am careful, it went up 0.4 mpg on the 175hp tune.

The tunes from Pat are spectacular! I have not run the race tune yet because with the snow and ice, I can blow the tires off with the 175 tune in 4WD. I have run up to the 200hp tune and rail pressure is off slightly from desired, but I do not think I am anyway near draining the rails. Pat really does know how to tune a truck.

It is cool to hear the turbo sing, my wife is complaining about the additional noise, not so much the turbo but the PPE lift pump. That bugger is LOUD.

There is a little turbo lag compared to the stocker if you stab the throttle. If you creep into it, the HTT lights off just fine. I am not sure how the HTT really compares to the IHI (in terms of turbo lag), because I added some RDL up-pipes at the same time as the turbo install. I think it will spool faster than using the stock up-pipes. The turbo lighting can be a little unnerving the first few times because the truck WAKES UP. Keep in mind I am doing this on crappy road surfaces with snow and ice and studded snow tires, not dry pavement with summer street tires.

I also put on a set of Caltracs when the turbo was going in. When I can find some try pavement, the truck just launches. I believe that I was feeling a little axle wrap last summer. I think that has gone away. I know that some folks do not like the Caltracs because they tend to lift the front of the truck on launch, but with my CC/LB, I think I have enough weight forward that it just cannot pick the front like the lighter, shorter trucks. Keep in mind that I have not done a true boosted launch yet...still waiting for good roads and no studded tires.

All in all, I love the turbo. Would I do it again....yes.

Do I want to go faster? Well, duh....:rofl::rofl:

We will see what happens after the shop gets built. If I have any $$ left over, I may end up with dual CP3's, MPI big twins, or both....and then start saving $$ for the new rods.

One comment, the guys at HTT are great, but their instructions leave a little to be desired in my opinion. It is not a hard installation, but there are some parts that are just a PITA. I know that some folks say they can do a complete installation in 4-6 hours, but I think that is on trucks that have had the parts off before, not a truck that had 140k miles before the turbo needed to be removed. My recommendation is if you have not done the installation before, do not be in a hurry. Take your time, and do it right. At least for me, if I get in a hurry I usually end up doing it twice.
 
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