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BOV for om617a
scrubs Offline
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#1
BOV for om617a
Any links or input for one?

1984 om617a with M-pump, Full IC, hybrid turbo, manual boost controller
03-24-2016, 12:20 PM
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Dark Hawk Offline
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#2
RE: BOV for om617a
No need for blow off valve on diesels
1984 300d 132k restormod project in the works
1985 300td 300k $600 off road adventure project
1999 land cruiser  235k, 33" mud tires, off road, towing, hauler
03-24-2016, 01:33 PM
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97e300 Offline
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#3
RE: BOV for om617a
wrong section.
03-24-2016, 10:23 PM
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MFSuper90 Offline
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#4
RE: BOV for om617a
Well the no need for blow off valves on diesels isn't totally correct. If you would put a big charger on it, such as a hx40, I guarentee it would surge while letting off under hard throttle, which can be prevented with a blowoff valve. But that just protects the turbo, it's not really needed
'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         
03-25-2016, 07:40 PM
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Sultzi Offline
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#5
RE: BOV for om617a
Like mfsuper said. When you do example burnout and let the throttle off, it will surge pretty badly with bigger turbo so bov isn't totally useless.. But many would put it just for the sound of it, not to protect the turbo Big Grin
03-26-2016, 04:47 AM
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TurboTim Offline
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#6
RE: BOV for om617a
And how are you guys setting up said BOV since there is no vacuum source?
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
06-08-2016, 11:55 PM
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Evgeniy1987 Offline
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#7
RE: BOV for om617a
(06-08-2016, 11:55 PM)TurboTim Wrote: And how are you guys setting up said BOV since there is no vacuum source?

If it is really needed, you can get vacuum from the vacuum circuit and swith it with a solenoid, while you can control the solenoid with a switch at the throttle pedal.

It is possible, but a bit more complicated...
06-11-2016, 03:17 AM
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TurboTim Offline
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#8
RE: BOV for om617a
....Yeah you let me know how that works....

The better way I thought about doing but never tried since not really needed anyways was to just use EGP for the control line to just hold it shut.
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
06-11-2016, 06:09 AM
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Evgeniy1987 Offline
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#9
RE: BOV for om617a
[Image: bov_eplanation.jpg]

Something like this Smile
06-12-2016, 11:49 AM
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TurboTim Offline
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#10
RE: BOV for om617a
So what happens if you partially let off gas. Turbo still fluttering there.
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
06-12-2016, 04:38 PM
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TurboTim Offline
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#11
RE: BOV for om617a
I do like the picture though!
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
06-12-2016, 04:39 PM
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TurboTim Offline
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#12
RE: BOV for om617a
You know you want boost pressure to close the valve when on throttle though so you may want to add more stuff to your picture.
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
06-12-2016, 04:40 PM
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MFSuper90 Offline
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Location: MOV, Ohio
#13
RE: BOV for om617a
Most guys use a control that has boost input on one side, and EGP on the other. Therefore when you chop the throttle boost overcomes EGP and opens the BOV.

I've never used one, but I've read several guys on comp D are using them
'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         
06-12-2016, 08:13 PM
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Evgeniy1987 Offline
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Location: Heerlen, Netherlands
#14
RE: BOV for om617a
(06-12-2016, 04:40 PM)TurboTim Wrote: You know you want boost pressure to close the valve when on throttle though so you may want to add more stuff to your picture.

Feel free to modify it  Big Grin
06-13-2016, 04:49 AM
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