Greenleaf's Super Single

[Greenleaf]

Guy's. My new "Super Single" :--)

 

[Greenleaf]

I think it's an HX 55 ????? Removed from a Cummins 855cid NTC series It has no tag The exhaust housing has "17" cast onto it. Would it cause a lag problem with my auto transmission???



-S

 

[steveinaz]

'and your transmission is packing its bags for a southern retirement.....

 

[JLEONARD]

Would it cause a lag problem with my auto transmission???

Yes..... Unless you "lag" the transmission to the frame I think it's going to take steveinaz's advice!

Jay

 

[mysteryman]

Yes , making power is no problem. Keeping the truck together after you run the power through it is the real challenge... ... If you really want power why not put the dodge body on a shortened Freightlined chassis. Just think . . you could gross out at 80,000 lbs then and get 13 gears to shift to boot Oo.



Seriously though... ... . the dodge chassis can not handle much more power than it came with from the factory and hold together vary long.

Would it cause a lag problem with my auto transmission???

Yes..... Unless you "lag" the transmission to the frame I think it's going to take steveinaz's advice!

Jay

 

[PToombs]

Oh put it in. When the frame starts to twist on launch, you'll know your almost to peak HP. There was a thread on here about how the 1st gens have the strongest frames. Somebody has to prove it!

 

[BHiggins]

Yeah, put it in! If it bends... you know not to put one in your other truck.

 

[BushWakr - RIP]

I ran a modified (PDR) HX50/15 on my truck about a year and a half back... spooky.

The hot end was equivalent to a 15cm housing and it was altered for response as well.



In my case I found that the turbo needed nearly 2000 RPM to "really" start working well... after that the boost went, almost instantly, to 50 psi.

I ran it as high as 55psi on my stock head gasket too... that was in concert with a pegged out 1800*F pyro.



I felt the problem was more to do with the lag time and the fact that at my max fueling rate the EGT's got too much of a head start for me to be able to stay on the throttle long enough for the turbo to "catch up" and bring temps down.

I was into the throttle a full 20 seconds at that temp on the load dyno... .

The ole girl did 373. 4 RWHP but the EGT's were truly thermonuclear and no sign of abating. .

Now that was just my experience and i didn't really have enough time to do multiple runs/R&D to see if we could tweak it up to come on at lower RPM. I was running the DTT 89 TC/VB/trans at the time as well so I know the power was being transferred ok...



I think I'd have seen higher numbers had I been running a tighter TC, perhaps the

91% TC. As it was I figure I was near 400 flywheel HP or thereabouts... but the temps made it totally unusable.



On the highway this thing was a total monster... . if I was cruising at, say, 55-60MPH and I got on it hard the darn thing lit up like a sub orbital rocket... . I mean I hit nasty boost (over 55psi) in a heartbeat but again, the temps climbed too quick.

I also believe that a ported head/ATS 3pc port matched would have help alot.



I will watch with interest to see if Scott can make this combo work for the daily driver and highway/towing guys ... . go for it bud...



pb...

 

[bgilbert]

Looks like that turbo has seen better days. Everything is relative. Spool at 2k might be ok for some. Better than spooling at 3k. I'd sure like to try out a 50-15!

 

[dpuckett]

Looks to me like a candidate for the bottom of a set of twins. I'd guess the "17" is the size of the housing.



Daniel

 

[DieselTweaker]

There was a thread on here about how the 1st gens have the strongest frames. Somebody has to prove it!

Dont worry Pete hoping to prove that fact here soon just waiting on that green stuff to come around.





Scott good look on the charger that thing will take some rpms to come around