STD Tuning Engine No wastegate

No wastegate

No wastegate

 
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Matej
GT2256V

141
05-29-2015, 04:43 PM #1
Hello,
Is anyone on here running their Superturbodiesel without a wastegate, or with their wastegate permanently closed?
I know Cummins truck people do it and state the motor will only limit itself to as much boost as it can handle, but I am curious how dangerous this method is for spirited driving with a Superpump.

It seems that it should be fine as long as the turbo is decently sized and fueling is adjusted to a safe amount, however I would love to hear first-hand experiences if anyone has them.

Cheers.

Irony.cc
Matej
05-29-2015, 04:43 PM #1

Hello,
Is anyone on here running their Superturbodiesel without a wastegate, or with their wastegate permanently closed?
I know Cummins truck people do it and state the motor will only limit itself to as much boost as it can handle, but I am curious how dangerous this method is for spirited driving with a Superpump.

It seems that it should be fine as long as the turbo is decently sized and fueling is adjusted to a safe amount, however I would love to hear first-hand experiences if anyone has them.

Cheers.


Irony.cc

Booster
GT2559V

240
05-29-2015, 04:47 PM #2
I have no super pump, but electronic pump with resistor mod and holset h1c turbo. No issues as the pump can't produce enough fuel to produce dangerous levels of boost..... I doubt the turbo could even produce that much anyway...

Its all going to depend what pump and what turbo combo....
Booster
05-29-2015, 04:47 PM #2

I have no super pump, but electronic pump with resistor mod and holset h1c turbo. No issues as the pump can't produce enough fuel to produce dangerous levels of boost..... I doubt the turbo could even produce that much anyway...

Its all going to depend what pump and what turbo combo....

MFSuper90
Budget Builder

1,533
05-29-2015, 08:47 PM #3
Booster is right. A stock om606 turbo with no waste gate is asking for trouble because the exhaust is so restricted. Excessive back pressure = blown head Gasket or worse

But. Hx60 on a om617 with no waste gate would never be a problem because the om617 would never spool a hx60 hard enough to hurt anything. 

It depends on your combo
This post was last modified: 05-29-2015, 08:49 PM by MFSuper90.

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
05-29-2015, 08:47 PM #3

Booster is right. A stock om606 turbo with no waste gate is asking for trouble because the exhaust is so restricted. Excessive back pressure = blown head Gasket or worse

But. Hx60 on a om617 with no waste gate would never be a problem because the om617 would never spool a hx60 hard enough to hurt anything. 

It depends on your combo


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

TurboTim
Holset

457
05-30-2015, 12:33 AM #4
I ran an hx40/35 with no waste gate on my 606 and managed almost 3 bar with 55psi back pressure. I think that was with maybe 170cc fuel.

87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com
TurboTim
05-30-2015, 12:33 AM #4

I ran an hx40/35 with no waste gate on my 606 and managed almost 3 bar with 55psi back pressure. I think that was with maybe 170cc fuel.


87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com

barrote
Superturbo

1,627
05-30-2015, 10:40 AM #5
that should be a problema, is not wich will kill your engine. u can weld the waste gate closed and u´ll se what will kill your engine is the EGT. back pressure will strugle your engine, and no harm will come from that, but if u have enough fuel lets say 100cc, during a Hill climb u´ll see a enormous raise in EGT´s and coolant temp , and finally engine destruction.

FD,
Powered by tractor fuel
barrote
05-30-2015, 10:40 AM #5

that should be a problema, is not wich will kill your engine. u can weld the waste gate closed and u´ll se what will kill your engine is the EGT. back pressure will strugle your engine, and no harm will come from that, but if u have enough fuel lets say 100cc, during a Hill climb u´ll see a enormous raise in EGT´s and coolant temp , and finally engine destruction.


FD,
Powered by tractor fuel

Booster
GT2559V

240
05-30-2015, 02:58 PM #6
(05-30-2015, 10:40 AM)barrote that should be a problema, is not wich will kill your engine. u can weld the waste gate closed and u´ll se what will kill your engine is the EGT. back pressure will strugle your engine, and no harm will come from that, but if u have enough fuel lets say 100cc, during a Hill climb u´ll see  a enormous raise in EGT´s and coolant temp , and finally engine destruction.

I removed my wastegate as it served NO purpose, my pump can't produce enough fuel at the moment to worry about anything. Back pressure / EGT / etc etc 

EGT'S currently never go above 400 c with resistor mod plus holset h1c


When I get big pump I'll sort a good manifold + wastegate

Drives perfect as it is now. 

Like I said at first it depends what pump/turbo combo you have
Booster
05-30-2015, 02:58 PM #6

(05-30-2015, 10:40 AM)barrote that should be a problema, is not wich will kill your engine. u can weld the waste gate closed and u´ll se what will kill your engine is the EGT. back pressure will strugle your engine, and no harm will come from that, but if u have enough fuel lets say 100cc, during a Hill climb u´ll see  a enormous raise in EGT´s and coolant temp , and finally engine destruction.

I removed my wastegate as it served NO purpose, my pump can't produce enough fuel at the moment to worry about anything. Back pressure / EGT / etc etc 

EGT'S currently never go above 400 c with resistor mod plus holset h1c


When I get big pump I'll sort a good manifold + wastegate

Drives perfect as it is now. 

Like I said at first it depends what pump/turbo combo you have

05-30-2015, 03:43 PM #7
Runing no means of boost control is not as uncommon as it may sound Smile

____________________________________

'88 300CD Turbo Coupé - OM603
DiseaselWeasel
05-30-2015, 03:43 PM #7

Runing no means of boost control is not as uncommon as it may sound Smile


____________________________________

'88 300CD Turbo Coupé - OM603

MFSuper90
Budget Builder

1,533
05-30-2015, 06:26 PM #8
(05-30-2015, 03:43 PM)DiseaselWeasel Runing no means of boost control is not as uncommon as it may sound Smile

It is actually the normal on older tractors engines, generator sets, and combine engines Smile

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
05-30-2015, 06:26 PM #8

(05-30-2015, 03:43 PM)DiseaselWeasel Runing no means of boost control is not as uncommon as it may sound Smile

It is actually the normal on older tractors engines, generator sets, and combine engines Smile


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

Matej
GT2256V

141
05-30-2015, 07:09 PM #9
The plan is an OM606 with a 7mm pump and HX35. I guess I will see how high the temperature climbs.

Irony.cc
Matej
05-30-2015, 07:09 PM #9

The plan is an OM606 with a 7mm pump and HX35. I guess I will see how high the temperature climbs.


Irony.cc

TurboTim
Holset

457
05-30-2015, 08:16 PM #10
Big turbo is my wastegate! Best way to relieve back pressure.

87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com
TurboTim
05-30-2015, 08:16 PM #10

Big turbo is my wastegate! Best way to relieve back pressure.


87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com

Edian727
Dreams of 8mm 617

127
05-30-2015, 09:57 PM #11
My old ford 6.9 with the old banks kit was like that. turbo was to small for the top end, if you held wot on a hill you could easily get your egts to high, or overheat. mine blew a hg, probably because i pushed it real hard. the old 7600(ford tractor) i used to run was like this too, but it only ran 2600 rpms and didn't choke out like the 6.9. i imagine 3+k it'd choke though. seen a few compounds with no gate on the second. One guy said he'd tune the second turbo in with the exhaust housing. makes sense.

personally i like the turbo coming in pretty quick witch makes using no wastegate a problem. unless you got a vgt or vnt, but i dont know much about those as i've never seen one in the junkyards, and i don't really buy new things.
Edian727
05-30-2015, 09:57 PM #11

My old ford 6.9 with the old banks kit was like that. turbo was to small for the top end, if you held wot on a hill you could easily get your egts to high, or overheat. mine blew a hg, probably because i pushed it real hard. the old 7600(ford tractor) i used to run was like this too, but it only ran 2600 rpms and didn't choke out like the 6.9. i imagine 3+k it'd choke though. seen a few compounds with no gate on the second. One guy said he'd tune the second turbo in with the exhaust housing. makes sense.

personally i like the turbo coming in pretty quick witch makes using no wastegate a problem. unless you got a vgt or vnt, but i dont know much about those as i've never seen one in the junkyards, and i don't really buy new things.

 
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