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Haha understandable. You know I was wondering what that adjustment was for, I am getting to know the internals of these pumps a little better, and I couldn't understand what the adjustment in that rod was for. You are referring to the rod that comes out of the pump housing in the rear above the...

Well guys I guess I will add some to the "more fuel" part of this thread... As many of you know I recently had a rotor machined with .390 inch plungers. I put the pump all together two weeks ago, with a stiffer governor spring. This past weekend was go time for the big project. I pulled the...

well to be honest I don't think the set up you are talking about would be worth it. Twin turbos in the technical sense are two separate turbos, both feeding into the engine, while a compound turbo set up is the one you are describing where one feeds into the other. To me, these set ups are...

Oh i know what you mean, nothing wrong with having torque a little higher, safer for the engine anyway. Ha agreed with the gearing. I too have 4.10s and the 6.34 1st NV4500. I think mods that allow the engine to perform better at higher rpm work well with this tranny since the gaps can be a...

Nice numbers! I can't wait to get mine on the dyno. I thought your torque peak was high too, but what really stuck out to me was the HP peak, 3807 rpm, and you said it pulls hard to 4000 rpm, I thought these DB2 pumps were governed to 3600 rpm? Again, nice job, looking forward to seeing the...

Thats a good idea. Kory has a 3 inch downpipe on his 82 6.2, but it had to be massaged a bit to fit. I have a four inch, which neeeded massaged a good bit with a torch, so its probably 3.5 inch at its smallest point. If I had to do it all over again, I would just use 3.5 inch for the whole...

Well I have had it on since March. It works really well I think, but I have never had the fuel to really optimize it. It definitely seems strong in the low end, and I don't spend much time in the upper end right now as my IP is worn, but that will change soon. Turbonator has been running on...

Here I found some specs for the HE351VE off the 2007.5 up Cummins.... I am not sure if they are right but they seem to agree no matter where I look. You can never have too many specs :) HE351VE Exhaust housing: varies, from supposedly 3-4 cm^2 to over 18cm, close to 20cm^2 (you guys can...

I think there is one on there right now, the title matches exactly. Hmm, very good price, if I was really in the market for a turbo. Wonder if I could sell my VGT to cover the cost of a this one :)

Yeah I would like to hear too on cost, where did you get the turbo? I have about $450 in my HE351VE, that includes getting raped on all the exhaust stuff I needed for the downpipe.

Man that custom chip must be really good! I mean I could see a turbo making a big difference but wow does that thing accelerate for an 8000 lb burb with 3.42 gears. From what turbonator has said the HE351VE is similar in size to an HX40? I hope my turbo will perform like that with the right set...

That thing moves! What does that Burb weigh? With 3.42s that is very impressive. Faster than my 5800 lb pickup with 4.10s. According to the times and you shouting out I got about 20 seconds from 0-90 mph, nice!

Hmm, interesting, I have never heard of that before. Does your 6.5 have a sticker on the valve cover with the HP on it? I know on mine it has the horsepower, 200 @ 3400 rpm, as well as the idle rpms and fuel rate at advertised hp. IIRC it says 59.5 mm^3. My dads 95 says 195 for HP but I don't...

What year is your burb aces? For the sake of this thread not being lost I will add some. Just as a quick story I was towing a wagon load of straw a couple weeks ago and like I said, I am overboosting right now. I was running up a slight grade in fourth gear, and it was running 15 psi all the...

Hey aces I just bought one of those, I am excited to put it on. I originally attempted a piece of plate steel with an exhaust elbow in it. Then a thicker piece of steel. I have YET to get it to stop leaking some boost, whether it be through the welds or at the joint between the custom upper and...

This is what I found a while back when I was researching.... I am sure other members have done it http://www.thetruckstop.us/forum/showthread.php?14488-porting-precups&highlight=precup

sounds like a good find! My motor with 101K on it had ridges in the cylinders you could catch your fingernail on and a crack in main journal #2! :(

That's kinda what I was waiting to hear. I had an idea that was the case. I would assume "good combustion" depends on many things. Like aces said, I would assume timing is a big factor as well. Would increasing fuel and advancing timing be modifications that complement each other? If there is...

Your EGTs just blow my mind every time you mention it ha. Those are very impressive numbers, I'm jealous.

Agreed, I have a question though. Obviously, more fuel=more smoke and higher EGTs. This period of smoky high EGTs can be lengthened with a slow spooling turbo. Now as the turbo starts to spool, the smoke clears and EGTs stabilize. However, I would assume that as the turbo spools to higher and...