Any feedback on the group buy turbos from J.R.?

[480RUGER]

Edge Boost Elbow

Has anyone changed JR's boost elbow to the Edge elbow with the hole under it or one like it? I just wanted to know if it would let JR's turbo spool up to fast.

 

[Tcolesanti]

I put an adjustable elbow on mine because the wastegate was opening at 38psi even on 5x5. So I put the adjustable elbow on there and now yield 40-42psi WOT on 5x5.



Has anyone had trouble keeping the wastegate actuater line secured to the boost elbow?? I have blown mine off twice now.

 

[480RUGER]

Boost elbow

I put on two pipe clamps last night after you said it popped off yours on your trip. I wanted to find out if the different elbow would cause any problems. I also get the same amount (36/38 psi) on 5x5. Did you drop any level of smoke at WOT? Mine looks the same.

 

[Tcolesanti]

I would say the smoke is about the same but pretty much cleans up at WOT on 5x5. It definately cleans up on the lower levels.

 

[Bloomy]

Wanted to throw some stuff up here about my turbo. Spools pretty good, but I think I should have gone a bit bigger. I talked to J. R. originally and he suggested I might want to go with something bigger but I decided on this one for towing purposes. I could hit around 36psi well after the breakin. Not sure what was expected there. Going up an 8% grade empty I hit 1400 degrees before I backed off. Today I pushed my 10 plate all the way forward and only have a max of 30 psi now. More fuel, less boost. Is that how it is supposed to be? Going up the same grade at the same weight I hit 1450 degrees with the plate forward before I backed off. So does this sound right compared to your own observations or do I have a problem somewhere?



Thanks

Thomas

 

[Cooker]

You may need to adjust your governor arm so it is not hanging up below the plate. Or just slide the plate back a bit. Sometimes the most power can be achieved without have the plate full forward.

 

[Tcolesanti]

I pulled the grapevine again this weekend with my gooseneck (5100lbs curb), and another dodge (8000lbs). Goning north I could hold 65mph no problem at around 36psi and the pyro at 1125*. Going south I could hold 55mph at 1125-1175*, I even got slowed down to 45mph and was able to get my speed back without cooking the motor. Just for reference my truck with full fuel and in tow trim it weighs about 8500lbs. I pulled this load with the comp on 1x5. I did do some empty pulls on 3x5 and I let out of it because of speed not the pyro. I think this is a great towing turbo if you have some larger injectors than the stock turbo can take. One more note I did get some surging at 28-30psi at half thottle pulling the trailer over the rolling hills in northern Ca.

 

[480RUGER]

I feel I could have gone bigger but didn't want the turbo lag. J. R. said this turbo was perfect for what I was doing (no towing). It does cool down twice as fast as the HY35 and I'm happy with that. But if I run 3x3 or higher I can get the pyro above 1400* quick @ 38 psi. Am I doing something wrong or did I not get enough turbo? I just put on a new BHAF the same day as the turbo.

 

[Tcolesanti]

I was thinking the same thing, but I can stay in it for a long time on 3x5 in sixth gear with no egt problems just speed issues.

 

[RonA]

Did any of you try a 35/40 hybrid before trying the JR turbo?

 

[IdaH.O.Train]

Well I finally got my pyro hooked back up and this is what I see. My thermocouple was previously installed in the downpipe, with my HX35. Unfortunately, after installing this new turbo, I never got the chance to see how my EGT's compared with my stock turbo, post-turbo.



Now, this is where I'm puzzled. With JR's turbo my cruising (approx. 70 - 75 mph on flat ground) EGT's are the same (approx. 600 deg) pre-turbo as they were under the same circumstances with the HX35, post-turbo reading. This was at an elevation of 4,000+ ft. My boost levels at that speed were approx. 4 - 8 psi, give or take. I did do a full throttle uphill run to see how hot she would get and got a max of around 1,400 deg.



Does this seem right with the cruising temps being identical?

 

[Tcolesanti]

What kind of max boost numbers are you seeing? I was only getting around 32-35psi when I first put it on there, then I put an adjustable elbow on it and it made a huge difference running it at 40-42psi. As far as cruising temps, mine are about the same as before as well. With my comp on 1x3 and the 120hp injectors it will get to 1100-1150* really quick towing, but the the pyro just stops dead with the boost up at 36psi.

Well I finally got my pyro hooked back up and this is what I see. My thermocouple was previously installed in the downpipe, with my HX35. Unfortunately, after installing this new turbo, I never got the chance to see how my EGT's compared with my stock turbo, post-turbo.



Now, this is where I'm puzzled. With JR's turbo my cruising (approx. 70 - 75 mph on flat ground) EGT's are the same (approx. 600 deg) pre-turbo as they were under the same circumstances with the HX35, post-turbo reading. This was at an elevation of 4,000+ ft. My boost levels at that speed were approx. 4 - 8 psi, give or take. I did do a full throttle uphill run to see how hot she would get and got a max of around 1,400 deg.



Does this seem right with the cruising temps being identical?

 

[IdaH.O.Train]

My max boost is only just over 30 psi. I only have the DD2's, so I guess I shouldn't expect much in the line of boost. I was more surprised the temps are the same pre-turbo as they were post-turbo with the stock turbo.

 

[Tcolesanti]

That's a good thing, they should have been quite a bit higher just by moving the probe.

 

[Bloomy]

Got to dyno over the weekend. Gained 22hp and 63 lb-ft torque since last October. The only other change was the addition of DD clutch. My boost gauge wasn't functioning all that well so I put another one in that I had. Boost is now around 39 psi. Where can you get an adjustable boost elbow?



Thomas

 

[RonA]

Just curious if anyone is still using one. I heard of 1 failure and several people are going to HTB2's.

 

[Cooker]

IMHO it sounds like a great "little" turbo at a good price but I get the impression that most were expecting too much from it. I think people were expecting big single performance from a sub $1000 turbo. JMHO

 

[RonA]

Perhaps the group buy thread should have read"Group buy on turbos, smaller and cheaper than HX-40". jmho.

 

[Bloomy]

Still have mine. With the 10 plate and towing it works good. With the "custom" plate I have too much fuel. I haven't anything else so I can't make comparison comments other than stock. No problems otherwise.



Thomas

 

[RonA]

Have you noticed an egt reduction over the stock turbo when you are running around 20 to 25 lbs of boost? Or do you only see a reduction if you go up around 35 to 40 psi?