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Yea, the seller said it was if an ISX. I don't what power rating, but still pleasantly surprised to find out that there are 66mm models and I stumbled across one. Anyhow, quick update: project wound up on hold for the month of May. Got caught up in a few project on the house and spent memorial...

No electronics, there will be a double acting pneumatic cylinder that will actuate the vgt. Boost pressure will close down it tighten the turbine, and dive pressure will work to open the turbine. The two fight against each other leaving the turbine vanes in a position that has boost and back...

Can anyone who knows these turbos tell me what is going on. I thought that there was only a 60mm and a 64mm compressor for the 451 frame Holsets. This is what I found when I opened it up. The odd number of blades makes getting a real precise measurement near impossible, but the best I can...

Yes, from what I understand the 451 framed turbos came on higher HP rated cummins ISMs, ISLs, QSMs, M11s, lower hp rated ISX motors, as well as Volvo d12s and mack MP8s. The 551 frame turbos are the most common on the bigger 13 & 15 liter commercial engines like the ISX, MP8, etc. That is what...

I am not sure but most likely an ISX. The turbine housing is weird, it has an odd flange, and a generally weird appearance do to the vgt. I don't believe it should limit anything for me though. It is 29cm and the turbine wheel is 67/64. I am really more confused by the compressor though. I tore...

That is way too electronically over my head. LOL I'll be sticking to mechanical. Anyways here is a couple of pics of the he451ve turbo The turbine housing on this thing looks massive. The physical size has got me worried but it should breath well. :lookaround:

he451ve pictures

Sorry for the thread not getting any updates for so long. The weather here dried out and my business is getting busy so I haven't had as much time to dedicate to this as I had hoped. But I am not giving up. So the he351ve is out! It is just not big enough. I have been watching ebay and I finally...

Well I have been busy lately but I have nailed down a few things. I figured out I was looking at the metric scale on the bottom(where the lbs/min usually is) of the flow map. The hx40 compressor is too small. It is pretty much on par with the stock tp38. So I have been lookin into three options...

Go for it if you can get control of the fueling. Also, I know this isn't the place for it but its just too cool. My cousins most recent sand toy of death! http://youtu.be/7ThGacWTmMI?t=23s Highest number to date has been 250+rwhp.... cuz turbo are AWESOME! :D http://youtu.be/mucA468CM5E?t=55s

no a vgt for that stuff. LOL. I am just trying to use my truck project to absorb some general turbo selection knowledge for those things. Shoot the bike turbos almost fit in my pocket. We have talked about a compound setup for a sand drag bike though. :evil

Thanks for responding, I appreciate it. I am aware of the traditional setups. However, I actually do want to know more about this stuff though. I know, I know, why do I care.... I am just goofy like that. I just like to know stuff. lol I am teach myself this stuff and am getting more and more...