New Twins 40/3B and high EGTs - Competition Diesel.Com

dodge359 · 08-22-2007, 11:26 PM

I installed an hx40/HT3B set up on my truck and am still in the process of retorquing the head. I havent had the boost over 30psi and I am really light on the throttle. I can hit 1250* no problem.

Any suggestions?

JGK · 08-23-2007, 09:36 AM

What's your total boost vs. primary boost vs. drive pressure readings? what kind of waste gate(s) are you using? Are you blowing tons of smoke at 30 lbs/1250*? What's your custom plate look like? My hunch is, with an agressive plate and the 191 valves, you may be pushing way more fuel than necessary, at least as compared to the air being pushed through. Need more info before anyone can provide meaningful suggestions.

I'm still tuning my PDR 40/3B set up. I haven't had a problem with excessive EGTs, but I'm still working on getting the boost up. Tuning the external waste gate on the manifold is helping.

-Jay

Scooter's Roofing · 08-23-2007, 09:54 AM

wait till boost hits 50-60, I bet those EGT's come down

BgBlDodge · 08-23-2007, 11:03 AM

I'll agree with forrest. At 30psi the big turbo is probably just starting to get spooled up so all your running off of is the little turbo. Get the boost on up and I'll bet your EGT's go down.

Diesel Freak · 08-23-2007, 11:28 AM

WOW, I knew HT3B turbos were laggy, but this is just downright piggish.

WideOpenThrottl · 08-23-2007, 02:19 PM

Check your primary boost once you crank it up. Originally with my external gate + the internal gate was simply too much and the 3B was doing all the work. I removed the external gate, world of difference.

dodge359 · 08-23-2007, 06:25 PM

I am running an internal wategate that I oped up as much as I could and like an idiot I didnt drill into the other volute.

I dont have my other boost gauge in yet. I dont have a drive pressure gauge where do I get one?

TxDiesel007 · 08-23-2007, 06:38 PM

Quote:

Originally Posted by WideOpenThrottl

Check your primary boost once you crank it up. Originally with my external gate + the internal gate was simply too much and the 3B was doing all the work. I removed the external gate, world of difference.

THis is true

wastegate ur top turbo if you can till about 20-24 psi, its what my 35 is gated to, i dont run an external, just the stock wastegate, and yes the egts get a bit hot, but once the big un lights, u see the pyro needle movin backwards. No joke...

Rick

dodge359 · 08-23-2007, 06:40 PM

Good deal. Thanks alot guys. Thought I may have gone out of the pan into the fire here. I will post what happens after I torque the head twice more and get the second boost gauge in.

dodge359 · 08-23-2007, 06:41 PM

Txdiesel, how you liking that Valair clutch? I will probably try it next as I keep killing these Southbends. I dont want the DD because it rattles.

dodge359 · 08-23-2007, 08:06 PM

Well I retorqued the head and went for a drive. The wastegate opened at about 35psi and as soon as it did the truck started to run really rough almost like it had water in the fuel. I turned in the screw on the elbow and went for another run, this time the wastegate didnt open at all and man she hit 1500* right now. Both pulls the boost shot tp 60 (as much as my gauge reads). Should I take out the boost elbow and adjust it with the w/g actuator. The thing that worries me is the shutter it getts when the wastegate opens on the 40.

TxDiesel007 · 08-23-2007, 08:18 PM

Quote:

Originally Posted by dodge359

Txdiesel, how you liking that Valair clutch? I will probably try it next as I keep killing these Southbends. I dont want the DD because it rattles.

I love it!

works flawlessly for my application.. PM sent

Rick

Scooter's Roofing · 08-23-2007, 11:11 PM

purely FYI, the latest SBC DD clutches don't rattle... they're sprung hub. I still run singles on my trucks though

BgBlDodge · 08-23-2007, 11:17 PM

Turning the screw in on the elbow raises boost. Back the screw out. On my 62/12 a 1/4 turn out on the boost elbow lowers boost by about 10psi.

dodge359 · 08-23-2007, 11:40 PM

I removed the elbow and replaced it with a factory one and still shutters when the gate opens and gets damned hot, fast.

*LAmiller* · 08-24-2007, 12:32 AM

Have you check for boost leaks?

If not, make something to pressurize the system to check for leaks... the smallest leak will make an EGT difference (mine was a blown intercooler)

Lavon

*Ultimate Diesel* · 08-24-2007, 12:56 AM

Our 06 gets up to 1800*, we have lots of fuel though.....lol Top charger is gated at about 25 psi but that will change since we have installed Nitrous.

Even when our boost levels are 60+ still 1200-1500*

95ram · 08-24-2007, 11:51 PM

Quote:

Originally Posted by BgBlDodge

I'll agree with forrest. At 30psi the big turbo is probably just starting to get spooled up so all your running off of is the little turbo. Get the boost on up and I'll bet your EGT's go down.

This is true. My 40/3b on my 01 the 3b wouldn't start boosting until about 25PSI and wasnt fully light until about 30PSI.

dodge359 · 08-25-2007, 12:06 AM

I pretty sure its lighting. The 40 by itself would only make about 45psi and paired with this 3b I peg the 60 pound gauge I have. Still runs hotter than he11 and the wastegate keeps fluttering. I have tried adjusting the w/g both ways and the star wheel (Made it a turd) The EGTs dont go down unless I adjust the wheel way back and then I can only get about 30psi.

BgBlDodge · 08-25-2007, 07:13 PM

Just because your making a lot of boost doesn't mean the big charger is lighting. My buddy's 35/3b combo was a laggy, smoky, hot dog but after some tweaking on the wastegates and fixing some leaks that truck is a bad running son of a gun. Lightning fast spool up, stupid high boost, low egt's.

08-22-2007, 11:26 PM	#1
dodge359 Name: dodge359 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Kalispell Montana Member`s Gallery Posts: 351	New Twins 40/3B and high EGTs I installed an hx40/HT3B set up on my truck and am still in the process of retorquing the head. I havent had the boost over 30psi and I am really light on the throttle. I can hit 1250* no problem. Any suggestions? __________________ 1997 Ram 3500 Studs, Fire rings, Twin Ram Intake, Snow Performance Stage 2 water/Meth, NX 2 stage, 4k kit, 40/3B, +45hp injectors, Custom fuel plate, 4" Stacks, 13" FE clutch, 191 Delivery valves, BD Boots. Nitrous, its the little blue pill for diesels.

08-23-2007, 09:36 AM	#2
JGK Name: JGK Title: Been around Status: Not Here Join Date: Jun 2007 Location: Boise Member`s Gallery Posts: 194	What's your total boost vs. primary boost vs. drive pressure readings? what kind of waste gate(s) are you using? Are you blowing tons of smoke at 30 lbs/1250? What's your custom plate look like? My hunch is, with an agressive plate and the 191 valves, you may be pushing way more fuel than necessary, at least as compared to the air being pushed through. Need more info before anyone can provide meaningful suggestions. I'm still tuning my PDR 40/3B set up. I haven't had a problem with excessive EGTs, but I'm still working on getting the boost up. Tuning the external waste gate on the manifold is helping. -Jay __________________ '98 2500 12V 5spd 4X4 QC LB.* custom plate, DDP4's, timing: 18.5*, compound spinners, PDR cam, PDR ported head, 3K GSK, SB DD, etc.

08-23-2007, 11:03 AM	#4
BgBlDodge Name: BgBlDodge Title: Hates hippies Status: Not Here Join Date: May 2007 Location: Buda, Tx Member`s Gallery Posts: 16,647	I'll agree with forrest. At 30psi the big turbo is probably just starting to get spooled up so all your running off of is the little turbo. Get the boost on up and I'll bet your EGT's go down. __________________ 2003 Nissan 350z Touring 6mt 2000 4runner Limited Tyler Williams We have become educated beyond our intelligence. -Jerry Clower

08-23-2007, 11:28 AM	#5
Diesel Freak Name: Diesel Freak Title: Too Much Time Status: Not Here Join Date: Jun 2007 Member`s Gallery Posts: 1,159	WOW, I knew HT3B turbos were laggy, but this is just downright piggish. __________________ '01 Dodge six speed 4x4 630hp... http://www.nwbombers.com

08-23-2007, 02:19 PM	#6
WideOpenThrottl Name: WideOpenThrottl Title: Diesel Enthusiast Status: Not Here Join Date: Apr 2007 Location: MN Member`s Gallery Posts: 119	Check your primary boost once you crank it up. Originally with my external gate + the internal gate was simply too much and the 3B was doing all the work. I removed the external gate, world of difference. __________________ 97 5sp. 97 auto.

08-23-2007, 09:54 AM	#3
Scooter's Roofing Name: Scooter's Roofing Title: Too Much Time Status: Not Here Join Date: Oct 2006 Member`s Gallery Posts: 17,007	wait till boost hits 50-60, I bet those EGT's come down

08-23-2007, 06:25 PM	#7
dodge359 Name: dodge359 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Kalispell Montana Member`s Gallery Posts: 351	I am running an internal wategate that I oped up as much as I could and like an idiot I didnt drill into the other volute. I dont have my other boost gauge in yet. I dont have a drive pressure gauge where do I get one? __________________ 1997 Ram 3500 Studs, Fire rings, Twin Ram Intake, Snow Performance Stage 2 water/Meth, NX 2 stage, 4k kit, 40/3B, +45hp injectors, Custom fuel plate, 4" Stacks, 13" FE clutch, 191 Delivery valves, BD Boots. Nitrous, its the little blue pill for diesels.

08-23-2007, 06:40 PM	#9
dodge359 Name: dodge359 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Kalispell Montana Member`s Gallery Posts: 351	Good deal. Thanks alot guys. Thought I may have gone out of the pan into the fire here. I will post what happens after I torque the head twice more and get the second boost gauge in. __________________ 1997 Ram 3500 Studs, Fire rings, Twin Ram Intake, Snow Performance Stage 2 water/Meth, NX 2 stage, 4k kit, 40/3B, +45hp injectors, Custom fuel plate, 4" Stacks, 13" FE clutch, 191 Delivery valves, BD Boots. Nitrous, its the little blue pill for diesels.

08-23-2007, 06:41 PM	#10
dodge359 Name: dodge359 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Kalispell Montana Member`s Gallery Posts: 351	Txdiesel, how you liking that Valair clutch? I will probably try it next as I keep killing these Southbends. I dont want the DD because it rattles. __________________ 1997 Ram 3500 Studs, Fire rings, Twin Ram Intake, Snow Performance Stage 2 water/Meth, NX 2 stage, 4k kit, 40/3B, +45hp injectors, Custom fuel plate, 4" Stacks, 13" FE clutch, 191 Delivery valves, BD Boots. Nitrous, its the little blue pill for diesels.

08-23-2007, 08:06 PM	#11
dodge359 Name: dodge359 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Kalispell Montana Member`s Gallery Posts: 351	Well I retorqued the head and went for a drive. The wastegate opened at about 35psi and as soon as it did the truck started to run really rough almost like it had water in the fuel. I turned in the screw on the elbow and went for another run, this time the wastegate didnt open at all and man she hit 1500* right now. Both pulls the boost shot tp 60 (as much as my gauge reads). Should I take out the boost elbow and adjust it with the w/g actuator. The thing that worries me is the shutter it getts when the wastegate opens on the 40. __________________ 1997 Ram 3500 Studs, Fire rings, Twin Ram Intake, Snow Performance Stage 2 water/Meth, NX 2 stage, 4k kit, 40/3B, +45hp injectors, Custom fuel plate, 4" Stacks, 13" FE clutch, 191 Delivery valves, BD Boots. Nitrous, its the little blue pill for diesels.

08-23-2007, 11:11 PM	#13
Scooter's Roofing Name: Scooter's Roofing Title: Too Much Time Status: Not Here Join Date: Oct 2006 Member`s Gallery Posts: 17,007	purely FYI, the latest SBC DD clutches don't rattle... they're sprung hub. I still run singles on my trucks though

08-23-2007, 11:17 PM	#14
BgBlDodge Name: BgBlDodge Title: Hates hippies Status: Not Here Join Date: May 2007 Location: Buda, Tx Member`s Gallery Posts: 16,647	Turning the screw in on the elbow raises boost. Back the screw out. On my 62/12 a 1/4 turn out on the boost elbow lowers boost by about 10psi. __________________ 2003 Nissan 350z Touring 6mt 2000 4runner Limited Tyler Williams We have become educated beyond our intelligence. -Jerry Clower

08-23-2007, 11:40 PM	#15
dodge359 Name: dodge359 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Kalispell Montana Member`s Gallery Posts: 351	I removed the elbow and replaced it with a factory one and still shutters when the gate opens and gets damned hot, fast. __________________ 1997 Ram 3500 Studs, Fire rings, Twin Ram Intake, Snow Performance Stage 2 water/Meth, NX 2 stage, 4k kit, 40/3B, +45hp injectors, Custom fuel plate, 4" Stacks, 13" FE clutch, 191 Delivery valves, BD Boots. Nitrous, its the little blue pill for diesels.

08-24-2007, 12:32 AM	#16
LAmiller Name: LAmiller Title: THE KT-BOUNDARY Status: Not Here Join Date: Aug 2006 Location: Plain City, OH Member`s Gallery Posts: 3,603	Have you check for boost leaks? If not, make something to pressurize the system to check for leaks... the smallest leak will make an EGT difference (mine was a blown intercooler) Lavon __________________ 04.5 QDLB 4x4 Diesel Power Challenge 2014/2015 Champion, ODSS 6.70 Points Champion 2015/2016 06 RaceCab 4x4 Ulimate Callout Challenge 2016, 2017, 2018 Champion, ODSS Pro Street Points Champion 2016 2016 QDLB 4x4, Firepunk EZLynk. http://www.shop.firepunk.com

08-24-2007, 12:56 AM	#17
Ultimate Diesel Name: Ultimate Diesel Title: www.UDPdiesel.com Status: Not Here Join Date: Jan 2007 Location: Colorado Member`s Gallery Posts: 454	Our 06 gets up to 1800, we have lots of fuel though.....lol Top charger is gated at about 25 psi but that will change since we have installed Nitrous. Even when our boost levels are 60+ still 1200-1500 __________________ "The Ultimate" Dodge Cummins 2006 2500 4x4 Auto "The Ultimate" Duramax 2500 4x4 6spd Ultimate Diesel Performance. www.UDPdiesel.com

08-25-2007, 12:06 AM	#19
dodge359 Name: dodge359 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Kalispell Montana Member`s Gallery Posts: 351	I pretty sure its lighting. The 40 by itself would only make about 45psi and paired with this 3b I peg the 60 pound gauge I have. Still runs hotter than he11 and the wastegate keeps fluttering. I have tried adjusting the w/g both ways and the star wheel (Made it a turd) The EGTs dont go down unless I adjust the wheel way back and then I can only get about 30psi. __________________ 1997 Ram 3500 Studs, Fire rings, Twin Ram Intake, Snow Performance Stage 2 water/Meth, NX 2 stage, 4k kit, 40/3B, +45hp injectors, Custom fuel plate, 4" Stacks, 13" FE clutch, 191 Delivery valves, BD Boots. Nitrous, its the little blue pill for diesels.

08-25-2007, 07:13 PM	#20
BgBlDodge Name: BgBlDodge Title: Hates hippies Status: Not Here Join Date: May 2007 Location: Buda, Tx Member`s Gallery Posts: 16,647	Just because your making a lot of boost doesn't mean the big charger is lighting. My buddy's 35/3b combo was a laggy, smoky, hot dog but after some tweaking on the wastegates and fixing some leaks that truck is a bad running son of a gun. Lightning fast spool up, stupid high boost, low egt's. __________________ 2003 Nissan 350z Touring 6mt 2000 4runner Limited Tyler Williams We have become educated beyond our intelligence. -Jerry Clower