First question: Would an Edge Comp and DD II's be too much for a stock turbo (HX35)? Factor in a Scotty II and 4" exhaust also.

If the answer to that question is yes, let's move on.

My primary goal is to get more towing power out of my truck, but at the same time get as much as I can out of the stock turbo. I don't want to cross the line of upgrading to a bigger turbo, because when that happens, it's all over...

I've heard plenty of good things about the EZ/275 and EZ/Stage 2 combos, also the Comp/275 combo has been mentioned.

I've been leaning towards buying the Comp (or TST...) just because of all the people who have bought EZ's only to upgrade 6 months down the road. I may even just run the Comp in 'EZ' mode for a while and then pierce the wire when I get bored. Good idea?

But then again, I am pretty much a "set it and forget it" kind of a guy so maybe the adjustability of the Comp is unnecessary and an EZ combo deserves more consideration, especially with all the deals on used EZ's.

Tranny is getting done next month so nobody needs to remind me that my stock tranny needs to be upgraded first. I've got gauges too.

I'm sorry to keep beating a dead horse, but you guys ont his site have got my head spinning...... I kinda like it. ;D

Thanks,
Russ

 

[quote author=Gary - KJ6Q link=board=7;threadid=18462;start=0#msg173255 date=1061052738]
"Maybe an EZ combo deserves more consideration, especially with all the deals on used EZ's."

Ever stop to think or ask WHY there are so many "good deals" on USED EZ's? ;D ;D

Might just be because their owners bought them, THEN realized te Comp was what they REALLY wanted/needed!

(Yeah, I know you touched on that - just wanted to "enhance" the point...) ;D ;D

[/quote]

Yeah I know, I know... Like I said, my head is spinning!

 

You might read about the earlier VP pumps and connecting the pump wire before you decide to pierce the wire. Some do fine, others fail.

In anycase, get the comp with the DD2s. The incab adjustability is "priceless" and hook up the wire when (not if) you're ready if you DO have the HX35.

ETC I'm assuming??? Lotsa people are running the HX35 with this combo,but you said the tranny is getting done, and your sig says you have an automatic? So, you have an HY35 turbo with the 9cm exhaust housing? This combo is more than an HY35 is good for IMHO, so the 275s and comp without pump wire for now would be a good combo. You can find used comps, but the reason there are lots of used EZs is because people tend to upgrade from them just like Gary said.

Once you have the adjustability, you'll likely find it IS necessary, especially when driving for mileage, driving with a load, playing ;D

 

HY turbos were on the 01 and up autos. Pre 01's had the HX35.

 

[quote author=StakeMan link=board=7;threadid=18462;start=0#msg173269 date=1061055480]
HY turbos were on the 01 and up autos. Pre 01's had the HX35.
[/quote]

So which one is better???

 

I believe the stock turbo is good up to 450hp and i believe the hx is better then the hy. This is what i have been informed.

 

[quote author=Rich-Cowboy link=board=7;threadid=18462;start=0#msg173313 date=1061066147]
I believe the stock turbo is good up to 450hp and i believe the hx is better then the hy. This is what i have been informed.
[/quote]

Only in a world where someone isn't running a PYROMETER, Rich

The stock HX35 is really done by about 340 - 350 HP, the HY between 330 - 340. IMHO, one of the nicest combos going is the TST PM3 (or Comp) and RV275s. Minimal smoke, plenty of grunt, adjustability to spare, and should you decide to move up the power curve later, the 275s can be sold for almost as much as you paid for them a year or two later.

Rod

 

[quote author=Mr. 45 link=board=7;threadid=18462;start=0#msg173285 date=1061057588]
[quote author=StakeMan link=board=7;threadid=18462;start=0#msg173269 date=1061055480]
HY turbos were on the 01 and up autos. Pre 01's had the HX35.
[/quote]

So which one is better???
[/quote]

Here is some info from the Dodgeram.org site that may help.

Why is the HY-35 turbocharger used on 2001-2002 trucks with an automatic transmission?

A truck with an automatic transmission has to meet soot emissions standards when torque converter slip allows the engine accelerate quickly. This does not usually happen with a manual transmission because for the engine speed to increase, the truck must accelerate - and that takes time. The HY-35 builds boost a little more quickly than the HX-35 does when the engine load is light, so from an emissions standpoint the HY-35 is better suited to stop-and-go driving with an automatic transmission.

FWIW: The HY-35 and HX-35 are functionally equivalent under most engine loads, and the wastegates on both turbos are set for the same boost level. The HY-35 does not breathe as well as the HX-35 at higher speeds under a heavy load. The choke point of the HY35 is around 35psi; the HY35 chokes at about 29psi.

 

I like my HY35. It spools quick and even at 35 psi, the EGT's are still very low (1000* pre trubo on 105* days). I've beat the crap out of that turbo and the shaft is still as tight as it was the day I got it.

 

So........., will my HY35 handle the EZ with DD2's? I will get a larger exhaust if I need to but I really don't think I'll go past this point with HP mods. Just need to get an idea at what I'm looking at after tranny mod, I bought this truck to tow with and if EGT's will be too high with the DD2's then maybe I should get smaller injectors.

 

The HY35 with the DD2s will just be at the ragged edge. ;D With a decent airbox, you should be just fine, EGT wise.

Rod

 

I would say , get the Comp, except that as others have stated, with the older VP44, you roll the dice if P wire connected. As far as the turbo is concerned, as Rod stated it will be alright unless towing heavy. Rod, did you have a suggestion for CTD99 on the airbox or I'll bet you are just waiting for me to say "150 degree drop in EGT's with a Scotty 2 weren't you?"

Regards,

Roger

 

CTD99, I am assuming that the ATS20% injectors are pretty close to the DD2's, but I had to upgrade the turbo on my setup because as soon as I would start to pull a hill while towing my 8k trailer no matter on what setting my box was on my egt's would just rocket to the top with my stock HX35, on flat land it did ok though. Mike

[quote author=CTD99 link=board=7;threadid=18462;start=0#msg173245 date=1061050637]
First question: Would an Edge Comp and DD II's be too much for a stock turbo (HX35)? Factor in a Scotty II and 4" exhaust also.

If the answer to that question is yes, let's move on.

My primary goal is to get more towing power out of my truck, but at the same time get as much as I can out of the stock turbo. I don't want to cross the line of upgrading to a bigger turbo, because when that happens, it's all over...

I've heard plenty of good things about the EZ/275 and EZ/Stage 2 combos, also the Comp/275 combo has been mentioned.

I've been leaning towards buying the Comp (or TST...) just because of all the people who have bought EZ's only to upgrade 6 months down the road. I may even just run the Comp in 'EZ' mode for a while and then pierce the wire when I get bored. Good idea?

But then again, I am pretty much a "set it and forget it" kind of a guy so maybe the adjustability of the Comp is unnecessary and an EZ combo deserves more consideration, especially with all the deals on used EZ's.

Tranny is getting done next month so nobody needs to remind me that my stock tranny needs to be upgraded first. I've got gauges too.

I'm sorry to keep beating a dead horse, but you guys ont his site have got my head spinning...... I kinda like it. ;D

Thanks,
Russ


[/quote]

 

Thanks. That's good info. My regular towing route involves plenty of long grades so it's looking like the comp/275 combo would be a better setup for me.