No wastegate
No wastegate
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.
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 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
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.
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.
(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.
(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.
Runing no means of boost control is not as uncommon as it may sound
(05-30-2015, 03:43 PM)DiseaselWeasel Runing no means of boost control is not as uncommon as it may sound
(05-30-2015, 03:43 PM)DiseaselWeasel Runing no means of boost control is not as uncommon as it may sound
Big turbo is my wastegate! Best way to relieve back pressure.
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.