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Hope I am not stepping out of line here, but the pump that chevydiesel is using is a .330'' plunger pump. Similar to the pump you have now Chris....glad to see you posting with us chevydiesel......

here ya go guys, this is our vid, but there was no sound because the camera we borrowed was full of precious child-hood videos, so it was shot with our digital camera, but it has no sound...:(... but i edited it all together and put some music too it, so enjoy......:hihi...

Usually a turbo has a design and testing parameters, these are used to verify that a turbo falls within the manufacturers tolerances. This is what we call the turbo maps, most brand name turbo manufacturers furnish the maps to aid in customer selection of a turbo. Just have not found many for...

Okay Chris, since nobody else seems ready to take the plunge, I can swim.....even when guys are whacking me on the head.....LOL. If I understand correctly, on the first page of your post, the first (top map) is the Holset, and the lower is the typical GM-X map (we have only ever found a map for...

The WMI systems can detonate early, because they are constant flow, no pulse timing such as an IP.....so with the temp already being higher than flash point, combined with the compressing of piston coming up to TDC.....well you get the idea. Cody (Rafedial1) , in his Camaro run up to 70-75%...

Some real good info guys, thanks for posting it up.....best to do IMO is "sticky it", won't get lost that way....J&J.

Went to Labrosse today, (our preferred scrap yard) and Jeff got the #'s off the valve cover of a 1992 6.5L TD......190 hp @ 59.5mm^2 @ 3500rpm. This will give an idea, of how much more your pump is flowing than the stock calibration.

We designed and made our own set-up, have had no ill effects. To date we have not put a lot of meth through it. We will try some over the next few days, and plan to dyno straight water and then a water/meth mix to compare power curve. Our system was put together for less than $200.00, set to...

stoichiometry......now that is a word I need to look up in my dictionary:eek:

Okay Chris, (and everyone else, and us ), Jeff and I discussed it more, he is in the process now of building the turbo-swap down-pipe. We just needed to be told to quit being so lazy and get to work.....LOL. Not sure how much time we will have to swap turbo's there, but we will go prepared with...

We are not sure to have seen anyone else do this and post up the #'s. One of the reasons we will do it too. I will look after, somewhere in all the papers here, we have the fuel and hp #'s that were on the rad support with the DB2831-4911 in the early 6.5L turbo trucks (we took this info off of...

i was just curious if it was still the crushed OEM downpipe... it is a piece of restrictive crap.... do you agree? some places it is crushed down to 2.5"....

heres a pic of the turbomaster we will be using...

you said that it chokes still on the 6.5l? when you installed it did you pull out the OEM down pipe and replace it as well?

Or maybe remove the pipe, only 4 bolts. That way it could be cleaned and painted. Guarantee's no contamination in pan either.

We were already getting the parts together for the next build at that time and it was an emergency replacement, so we used the single square cups in it. We have Diamonds here, as a back-up in case our modded cups do not perform well in the "Leprechaun" motor build......still looking for a...

So we are confirmed on the dyno for the second of April, we have decided it is simplest to run as we are........discussed the possibility of two pulls the 12th of May, with a turbo change between the two....LOL.

We kind of just follow the lead that others have tried recently with these pumps to increase the fuel flow (volume ). The housing of similar DB2/DB4 pumps are the same size. The head (rear-most section), which the lines attach to, is the fuel distribution. The rotor, which the plungers are in...

We kind of just follow the lead that others have tried recently with these pumps to increase the fuel flow (volume ). The housing of similar DB2/DB4 pumps are the same size. The head (rear-most section), which the lines attach to, is the fuel distribution. The rotor, which the plungers are in...

yeah, the thicker cyl. walls wont hurt, thats for sure.....