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Or........Leave the piston's alone and resize the rods and make them .020 or .030 shorter. This will drop you compression and you will only need to check your piston skirt clearence which will not hurt you in any way if you had to take away material from the skirt.

Why not just get the pistons re-hard anodized? It's not that big of a deal.... If you really want a better protection to the pistons then get them coated.

Turbine doc has a set of new 18:1's I think he will sell ya.

OK.... thinking again on differnt materials or new ones ect. I never really cared for the concrete block fill material. But I did some custom head work on some Toyota hemi cylinder heads. The problem we had was the port walls got so thin from flow bench testing. We talked to composite specialist...

Get them shoes on there that's dangerous! I just shoud mine with 6 new Michelin X's. I had slicks but not down to the belts!!! Plus, haven't you been getting a bunch of wet weather lately?

That's great mileage!! So the GL4 also shifts into high fast just as the GLE? I have the GLE too and see 19+ with no load and 14-15 with my 20ft enclosed trailer with various loads. 550 - 625 miles per tank on average. Working on a new larger turbo next. It would be nice to have these engines...

He should replace the CTS first.... Especially since it is a fairly cheap part. The PCM needs a variable reading to work properly.

Slim, TD stated he wouldn't put the IC back on and now he is going WMI. Is your IC the same size as his or is it bigger? If it is bigger are you still going to keep it on?

It seems with a diesel no one really fools around with cam profiles. The engine reacts to powerband changes based off the flow capabilites of the turbo. You can remove the intake manifold completely off a diesel while it's running and experience no change. Try doing that with a gasser and it's...

Then at what point does the IP not able to supply enough fuel?

He told me the same but if a DS4 has only enough fuel to supply 250HP how is he sqeezing 450+ out of the engine? I doesn't jive......

Isn't this where the GM turbos are no longer efficient and the ATT would extend the 5hresehold til fuel runs out?

The guy with the tractor runs 2 mechanical IP's and a big Holset turbo. He couldn't feed it enough fuel so he end up running twin IP's. Heath runs his salt flat truck to 5K not sure what IP he is using but it must have some huge plungers in it. The more fuel, the more rpm's, and that...

Thanks Matt, Your sharp, yes it is Carrera based. Good thing it is done I can't afford to build another one.

Seems to me all the main stream guys making big power with the 6.2/6.5 are twisting the motor up to or over 5K. It is these forums that help all the owners gather info and take the bull by the horns to make bigger strides in more power. If you think about it these are the only trucks that...

Thanks Matt! This is definetly better than the bed frame rail girdle. :laugh: I know it would be more work. I would deck the main caps and add material across the cap and bridge both rails. Then tie into the pan rails. A custom pan would need to be made. Maybe a extra capacity pan.

well.................. I fabricate, and I just like to do it. I like to make things better and make it look just as good as it works. It is just something I do. It is what makes me, me. Plus what fun would it be to just buy something you have no idea what the clearences are? You could hope the...

Turbine Doc, Do you regret not going 18:1? If you had to do it all over again would you stay 21:1 ? I am thinking hypothetically, that a 18:1 motor would have less block stress since the cylinder pressures would be less off load which the motor is seeing most of the time anyways. Next...

It is confusing to say the least. The H1's suppose to have the bad ones up to 01. I have a 01 H1 and it has the problematic block. Apparently it was luck of the draw. I only have 30K on it but my 99 3500 has 167K. In the H1 world they talk about the poor head water passage circulation as the...

Thanks Matt, Was 97 the only year of the cracking? Or did they fix this in the later 506 blocks? Did the early 96 year 506 blocks come without squirters?