Question: Do larger injectors *require* a larger turbo?

[Partyat33]

I have a ETH/DEE with an EZ and BD Step II's. I haven't towed yet, but unless you just stand on it I haven't seen a bad EGT problem. It was hitting 1300 without the boost elbow but well below with the elbow. That 1300 is a peak number. So, as far as really bad EGT, I have not seen it. PS I have stock exhaust and even a stock filter.


------------------
2001. 5 3500 4X4 Quad Cab, ETH, Dark Garnet Red. Back Country SS Nerf Bars, Kanduco Grill Inserts (sweet tooth), SPA Boost and EGT Gauges, Step II injectors, Power Edge EZ, Custom graphics package, LineX bed liner.

 

[Diesel Guy]

Remember that if your friends truck is an '01 with the auto, that he has the HY35 turbo with the 9cm housing. I think 50hp is the limit with that little turbo on there. Step up to the older HX-35 with a 12, and you'll be fine up to 100hp or so, like Kevin

 

[bpete]

I Have a 01 auto that had the HY35 turbo. I have DDIIs an EZ and a Hot PE. With the stock turbo, the DDIIs and the EZ max EGT in hard pull was 1250 with 31# boost. If I turned on the PE temps went straight to 1500+. I would say that your friend will be fine.

But unless he wants to make some transmission mods I would not jump into injectors. If he wants a combo setup I would suggest the EZ/275.
Brant

 

[bpete]

Forgot my sig.

------------------
01 Excab 4x4 Driftwood, agate interior, Potect grilleguard, DeeZee FX black, Weatherguard crossbox, Montezuma tool box, Honda air compressor, fold down g/n hitch.

Geno's pillar mount combo guage, deactivated wastegate, custom exhaust, 5"
chrom tip, PE EZ, Hot PE box, DDIIs, Dunrite TC, Transgo shift kit, and K&N air filter.

Performance Diesel Dealer

 

[Vaughn MacKenzie]

I just emailed DD about being able to purchase Stage IIIs separately for the ETH (haven't heard back yet though). Evan Beck is running DD3s with a PS boost module with the stock turbo & exhaust but has removed the muffler and added the PSA air. I believe his EGTs stay under 1250F when getting on it hard. His Stage 3s are the older, smokier type.

If DD doesn't sell Stage 3s for the ETH you could probably get the ETC Stage 3s and run them, they are probably pretty close to identical. When I talked to them they insisted all ETHs had the 10cm housing and some the 9cm, although BD personally told me mine is a 12cm (same with Evan's). I understand DD's dedication to selling products that will not endanger your engine but I also felt like they are a little anxious to sell you a package with their HX40.

Vaughn

------------------
'01 2500 QC Shortbed 2wd, 6-speed, 3. 54LSD, Cab & Fog lamps, Camper & Tow Pkg.
BOMBed: RV injectors, PS Boost module, Amsoil air filter, straightpiped exh. , Aeroquip 3/8" fuel line w/tank mounted lift pump, AutoMeter Sport Comp gauges, Line-X'd, Amber turn signal conversion.
Mildly BOMBed Performance: 0-60 @ 10. 0 sec. ,
40-60 @ 5. 5 sec. ,
0-100 @ 24 sec.

 

[Vaughn MacKenzie]

Update... did just get an email from Keith at DD, he says the DO sell Stage 3s alone for the ETH, but strongly recommends upgrading the air support on the intake side at miniumum if staying with the stock turbo, and I agree with him on that.

I also asked their new adjustable timing/boost module and he says it is supposed to work well on the ETH with Stage 2 or 3 or whatever injectors.

Vaughn

 

[TomGolden]

Vaughn, thanks a million for the input and clarifications. I already have the RE-0880 and pre-filter, and will likely go to the full Psychotty later this year. I am also going with the DD 4" exhaust before I get the injectors. I'm glad to hear the DD Max-boost turbo is in fact an HX40. I certainly understand Keith/DD wanting to make sure customers (like me) take a "safe" approach to BOMBing with their products, because someone (like me) who didn't know any better could easily destroy their engine by unknowingly going overboard with BOMBs and then laying the blame at DD's feet saying they ruined the engine, etc. . Since I am most certainly new to BOMBing, I just got a bit scared by Keith's insistence that I really needed a larger turbo if I wanted to go with the DD 3's & TTPM.

So, I guess I'll still follow my original BOMB path:

4" exhaust very soon
DD Stage 3's and some type of boost module in April
Sachs clutch later this year
any other modules/boxes needed
larger turbo

All as $ permit.

Tom


------------------
Get outta the way: The Cummins is Cummin'!

Tom Golden
Godzilla: Patriot Blue 2001 2500 SLT QC 4X4 LWB ETH/DEE, Tow & Camper packages, 3. 54 Ltd. Slip, 4 wheel disc ABS, Isspro EGT/boost gauges, black SmittyBilt nerf bars, K&N RE-0880 & pre-filter, no silencer ring, TDR decal, Jack holiday antenna ball
2001 Zinc Yellow SVT Mustang Cobra on order
NRA Life/CRPA/El Dorado #26 F. &A. M. of California

 

[TomGolden]

Howdy all,

This question is for myself and a buddy who hasn't quite yet joined the TDR, but is a lurker (Joe Rainwater). He just got his new Ram CTD #ad


I am looking at getting a set of DD Stage 3 injectors and either their TTPM or "generic" boost module that comes with their ETH STage 3 kit. Joe has the ETC/auto transmission and he is considering a set of DD Stage 1's and an EZ.

I have sent a couple of email questions to the good folks at DD, and Keith has kindly responded to them all. He assures me that on my truck (ETH/DEE) that if I go with the Stage 3's and either boost module (especially the TTPM), I will certainly have serious EGT problems unless I go with a larger turbo (he of course recommends DD's Max-boost turbo).

When my friend Joe has talked with DD, they told him that the HY35 turbo on his ETC/auto is only good for up to an additional 50HP/100 #'s of torque, and so he could only do Stage 1's OR an EZ, but not both.

So please, if any of you have either of these combos:
ETC with DD Stage 1's & EZ
ETH with DD Stage 3's and boost module

with the STOCK TURBOs, please let us know of any EGT or other problems you've seen. Or if you upgraded your turbo after installing the injectors/modules, what differences did the larger turbo make?

For myself, I would certainly consider the HX40, but for $$ reasons, I seriously doubt it will be this year that I can afford it. I'd rather get Joe D's Sachs clutch first anyway.

Thanks gang,
Tom

[Edit]: Thanks Kevin. I should have mentioned that I don't tow, and will rarely be hauling heavy loads. If I go with a larger turbo housing now, and delay a larger turbo for awhile, would say an HX40 bolt directly up to a larger housing that I would buy for my HX35, or would I need to buy another housing for a larger turbo? Also, does anyone know anything about DD's Max-boost turbo? is it an HX40 or something else/larger/"better", and is it a regular turbo or has it been performance optomized ala Majestic Turbo kind of work?

Thanks again,
Tom


------------------
Get outta the way: The Cummins is Cummin'!

Tom Golden
Godzilla: Patriot Blue 2001 2500 SLT QC 4X4 LWB ETH/DEE, Tow & Camper packages, 3. 54 Ltd. Slip, 4 wheel disc ABS, Isspro EGT/boost gauges, black SmittyBilt nerf bars, K&N RE-0880 & pre-filter, no silencer ring, TDR decal, Jack holiday antenna ball
2001 Zinc Yellow SVT Mustang Cobra on order
NRA Life/CRPA/El Dorado #26 F. &A. M. of California

[This message has been edited by TomGolden (edited 02-13-2001). ]

[This message has been edited by TomGolden (edited 02-13-2001). ]

 

[K_Arts]

In what I have seen, bigger injectors don't necessarily require a bigger turbo, but sometimes it does help out (pending on EGT temps and how much power you want). To tell you a little about my truck, I have my stock HX-35 (12cm2)turbo, DD2 injectors and an EZ box in my truck and max EGT is 1100 degrees preturbo. Yes a bigger turbo will reduce EGT's, but will increase turbo lag. So I would have so say IMO, you don't "Require" a bigger turbo, but with DD3's, you will need a bigger housing at minimum to control EGT's.

Guys... am I on the right track???

Kev

[This message has been edited by K_Arts (edited 02-13-2001). ]