Whats up with Cut Delivery Valves?
Whats up with Cut Delivery Valves?
Poll: Cut Delivery Valves
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Yes; worth it!!!
No; not worth the time spent...
11-30-2009, 01:03 AM
#1
What have you guys noticed? More power/ smoke? Higher EGT's? What exactly does cutting the DV's entail?I have just completed my engine swap in my 81 300SD. It now houses a 1984 model year 617.952. The alda has never been touched (evidence of this being the metal band around plastic cap over adj nut). I want to remove it soon because it isn't near as peppy as my former benz engine (stock with ALDA devirginized 1981 617.951). I need to check my boost on this .952 and report back. Basically, I am looking for good performance while trying not to sacrifice too much mileage-I know people in Hell want icewater .
11-30-2009, 01:15 AM
#2
http://www.youtube.com/watch?v=HUUxhb4Rd9w
This post was last modified: 11-30-2009, 01:16 AM by ForcedInduction.
ForcedInduction
11-30-2009, 01:15 AM
#2
The DV isn't a restriction to flow on the M and MW pump. Cutting the collar results in a very unstable idle, lots of smoke and extremely quick increasing EGTs. It had good power but the EGTs made the power unusable.
http://www.youtube.com/watch?v=HUUxhb4Rd9w
11-30-2009, 01:18 AM
#3
(11-30-2009, 01:15 AM)ForcedInduction The DV isn't a restriction to flow on the M and MW pump. Cutting the collar results in a very unstable idle, lots of smoke and extremely quick increasing EGTs. It had good power but the EGTs made the power unusable.
http://www.youtube.com/watch?v=HUUxhb4Rd9w
Cutting the collar? I thought to 'cut the dv's' one would remove them and have them Blanchard ground...
(11-30-2009, 01:15 AM)ForcedInduction The DV isn't a restriction to flow on the M and MW pump. Cutting the collar results in a very unstable idle, lots of smoke and extremely quick increasing EGTs. It had good power but the EGTs made the power unusable.
http://www.youtube.com/watch?v=HUUxhb4Rd9w
Cutting the collar? I thought to 'cut the dv's' one would remove them and have them Blanchard ground...
11-30-2009, 03:31 AM
#5
(11-30-2009, 01:33 AM)ForcedInduction No, just the collar profile.
So it is just removing some material from the top of the dv to the collar? Or cutting the diameter of the collar? My picture will explain my question...
How are these DV's removed from the IP? Thread link / picture?
This post was last modified: 11-30-2009, 03:32 AM by Ian White.
Attached Files
Image(s)(11-30-2009, 01:33 AM)ForcedInduction No, just the collar profile.
So it is just removing some material from the top of the dv to the collar? Or cutting the diameter of the collar? My picture will explain my question...
How are these DV's removed from the IP? Thread link / picture?
Attached Files
Image(s)
11-30-2009, 03:39 AM
#6
ForcedInduction
11-30-2009, 03:39 AM
#6
Yes, Just cutting the collar. The height difference is an optical illusion of the camera.
11-30-2009, 03:49 AM
#8
ForcedInduction
11-30-2009, 03:49 AM
#8
Yes. Remove the lines, remove the 15mm nuts and they will be directly under. They will need a new copper crush washer as well.
ForcedInduction
11-30-2009, 04:32 PM
#10
Yes, I did them myself using a crude air drill/lathe and a dremel.
11-30-2009, 06:11 PM
#11
1981 300SD 230k miles "Gently Modified" Daily Driver
1999 F-250 7.3L Power Stroke 150k miles "The Usual Mods" Tow Rig
1981 300SD 190k miles "Heavily Modified"
GONE
DrewGerhan
11-30-2009, 06:11 PM #11What about cutting a "channel" in the collar? Would that in theory allow more fuel, but not as much as totally cutting them? Maybe better idle results?
1981 300SD 230k miles "Gently Modified" Daily Driver
1999 F-250 7.3L Power Stroke 150k miles "The Usual Mods" Tow Rig
1981 300SD 190k miles "Heavily Modified"
GONE
11-30-2009, 09:16 PM
#13
Thats what I could come up with the collar does from reading other threads.
1981 300SD 230k miles "Gently Modified" Daily Driver
1999 F-250 7.3L Power Stroke 150k miles "The Usual Mods" Tow Rig
1981 300SD 190k miles "Heavily Modified"
GONE
DrewGerhan
11-30-2009, 09:16 PM #13The DVs from the P7100 shown above show that on the brass looking one, the collar is still there but just "thinner". This would allow more fuel and still have a collar to reduced the risk of double injection.
Thats what I could come up with the collar does from reading other threads.
1981 300SD 230k miles "Gently Modified" Daily Driver
1999 F-250 7.3L Power Stroke 150k miles "The Usual Mods" Tow Rig
1981 300SD 190k miles "Heavily Modified"
GONE
![[Image: Pb230006.jpg]](http://i3.photobucket.com/albums/y71/kartek/Mercedes/Pb230006.jpg)
11-30-2009, 09:30 PM
#15
1981 300SD 230k miles "Gently Modified" Daily Driver
1999 F-250 7.3L Power Stroke 150k miles "The Usual Mods" Tow Rig
1981 300SD 190k miles "Heavily Modified"
GONE
DrewGerhan
11-30-2009, 09:30 PM #15I take it from your user name, that is from a 606?
1981 300SD 230k miles "Gently Modified" Daily Driver
1999 F-250 7.3L Power Stroke 150k miles "The Usual Mods" Tow Rig
1981 300SD 190k miles "Heavily Modified"
GONE
11-30-2009, 10:05 PM
#18
1981 300SD 230k miles "Gently Modified" Daily Driver
1999 F-250 7.3L Power Stroke 150k miles "The Usual Mods" Tow Rig
1981 300SD 190k miles "Heavily Modified"
GONE
DrewGerhan
11-30-2009, 10:05 PM #18I couldn't tell ya. I feel that a Cummins forum might be helpful right now.
1981 300SD 230k miles "Gently Modified" Daily Driver
1999 F-250 7.3L Power Stroke 150k miles "The Usual Mods" Tow Rig
1981 300SD 190k miles "Heavily Modified"
GONE
12-01-2009, 05:11 AM
#20
I'm getting some 7.5's from him and it would probably be a good time to get some other things right now to save on shipping. I could send them to you once I got them here in the States.
I'd be looking into a set of Tomnik's "Holly" 6.5mm elements and a VNT for the most bang for the buck.
I'm getting some 7.5's from him and it would probably be a good time to get some other things right now to save on shipping. I could send them to you once I got them here in the States.
...
12-02-2009, 08:03 AM
#24
1998 MB E300 - 194,000 miles. Current/future mods: 7.5mm pump elements, Holset HX40 Turbo feeding Eaton M90 supercharger through custom fabbed intake system. Aeroturbine muffler, scratch-built 4" stainless exhaust. EGR eliminated, ECM recalibrated, modified rack position feedback circuit. Porterfield RS brake pads, Bilstein sport shocks, VDO EGT, oil and boost gauges.
2000 Ford F250 - 150,000 miles. Current/future mods: DP Tuner 3 map chip, scratch-built high flow intake, high output IDM, open circuit fuel system, ball bearing turbo, South Bend full metal clutch, slotted and drilled rotors. Autometer Sport Comp EGT and boost gauges.
Ian, I'm afraid I haven't had time to put them in yet...
1998 MB E300 - 194,000 miles. Current/future mods: 7.5mm pump elements, Holset HX40 Turbo feeding Eaton M90 supercharger through custom fabbed intake system. Aeroturbine muffler, scratch-built 4" stainless exhaust. EGR eliminated, ECM recalibrated, modified rack position feedback circuit. Porterfield RS brake pads, Bilstein sport shocks, VDO EGT, oil and boost gauges.
2000 Ford F250 - 150,000 miles. Current/future mods: DP Tuner 3 map chip, scratch-built high flow intake, high output IDM, open circuit fuel system, ball bearing turbo, South Bend full metal clutch, slotted and drilled rotors. Autometer Sport Comp EGT and boost gauges.
12-02-2009, 06:45 PM
#25
(12-02-2009, 08:03 AM)E300TSC Ian, I'm afraid I haven't had time to put them in yet...
Don't worry, we will soon change that for you
DervTuning
12-02-2009, 06:45 PM #25Indeed, larger diameter elements are the way to go for more fuel with proper delivery, as well as being very cost effective (for more power).
(12-02-2009, 08:03 AM)E300TSC Ian, I'm afraid I haven't had time to put them in yet...
Don't worry, we will soon change that for you
12-02-2009, 09:24 PM
#26
(12-02-2009, 06:45 PM)DervTuning Indeed, larger diameter elements are the way to go for more fuel with proper delivery, as well as being very cost effective (for more power).
(12-02-2009, 08:03 AM)E300TSC Ian, I'm afraid I haven't had time to put them in yet...
Don't worry, we will soon change that for you
What are you getting at when you say you will change parameters of my quest for power?
(12-02-2009, 06:45 PM)DervTuning Indeed, larger diameter elements are the way to go for more fuel with proper delivery, as well as being very cost effective (for more power).
(12-02-2009, 08:03 AM)E300TSC Ian, I'm afraid I haven't had time to put them in yet...
Don't worry, we will soon change that for you
What are you getting at when you say you will change parameters of my quest for power?
12-07-2009, 01:29 PM
#27
(11-30-2009, 01:15 AM)ForcedInduction It had good power but the EGTs made the power unusable.
What were/are you running for a turbo?
Folks around here (short of the Finns) aren't known for running 'big' turbos...
On a OM617/OM606, anything smaller than a Holset HX35 is little, IMHO.
Beers,
Matt
'07 W211 OM642
'95 W124.131/722.435, 211k - daily driver/Superturbo project - OM606.962 with "M" pump...under construction! (build thread here)
'99 W210.025 - gone, but not forgotten
'94 Dodge/Cummins - gone, but not forgotten
HoleshotHolset
12-07-2009, 01:29 PM #27(11-30-2009, 01:15 AM)ForcedInduction It had good power but the EGTs made the power unusable.
What were/are you running for a turbo?
Folks around here (short of the Finns) aren't known for running 'big' turbos...
On a OM617/OM606, anything smaller than a Holset HX35 is little, IMHO.
Beers,
Matt
'07 W211 OM642
'95 W124.131/722.435, 211k - daily driver/Superturbo project - OM606.962 with "M" pump...under construction! (build thread here)
'99 W210.025 - gone, but not forgotten
'94 Dodge/Cummins - gone, but not forgotten
12-08-2009, 02:16 PM
#29
(12-07-2009, 09:06 PM)ForcedInduction That was with the VNT.
OK. It takes a lot of flow/boost to burn clean. Was there a haze of gray or a cloud of black?
Beers,
Matt
'07 W211 OM642
'95 W124.131/722.435, 211k - daily driver/Superturbo project - OM606.962 with "M" pump...under construction! (build thread here)
'99 W210.025 - gone, but not forgotten
'94 Dodge/Cummins - gone, but not forgotten
HoleshotHolset
12-08-2009, 02:16 PM #29(12-07-2009, 09:06 PM)ForcedInduction That was with the VNT.
OK. It takes a lot of flow/boost to burn clean. Was there a haze of gray or a cloud of black?
Beers,
Matt
'07 W211 OM642
'95 W124.131/722.435, 211k - daily driver/Superturbo project - OM606.962 with "M" pump...under construction! (build thread here)
'99 W210.025 - gone, but not forgotten
'94 Dodge/Cummins - gone, but not forgotten
12-21-2009, 03:03 PM
#31
(12-08-2009, 02:51 PM)ForcedInduction It was thick gray, not black.
That's not exactly fogging for skeeters level of overfueling - I bet with a little more boost/flow she'd clean right up. EGT's pre-turbo were about 1300° after a hard run...?
Beers,
Matt
'07 W211 OM642
'95 W124.131/722.435, 211k - daily driver/Superturbo project - OM606.962 with "M" pump...under construction! (build thread here)
'99 W210.025 - gone, but not forgotten
'94 Dodge/Cummins - gone, but not forgotten
HoleshotHolset
12-21-2009, 03:03 PM #31(12-08-2009, 02:51 PM)ForcedInduction It was thick gray, not black.
That's not exactly fogging for skeeters level of overfueling - I bet with a little more boost/flow she'd clean right up. EGT's pre-turbo were about 1300° after a hard run...?
Beers,
Matt
'07 W211 OM642
'95 W124.131/722.435, 211k - daily driver/Superturbo project - OM606.962 with "M" pump...under construction! (build thread here)
'99 W210.025 - gone, but not forgotten
'94 Dodge/Cummins - gone, but not forgotten
12-28-2009, 12:35 PM
#34
(12-28-2009, 10:44 AM)ForcedInduction For about 500rpm with it spools up at 4000rpm!
Yeah - HX40's are lag pigs. Even on 5.9L Cummins engines. There are plenty of other options out there that will flow more and spool faster. Industrial Injection makes some very nice hybrid turbos - spendy, though.
I was VERY impressed with the ball bearing Garrett (GT37R ?) one friend of mine had on his Cummins ISB. The thing spooled nearly instantly and the EGT's stayed cool with a LOT of fuel even though he had a nasty crack in his intercooler. Again, a spendy bugger - but they seem to be very, very durable.
'07 W211 OM642
'95 W124.131/722.435, 211k - daily driver/Superturbo project - OM606.962 with "M" pump...under construction! (build thread here)
'99 W210.025 - gone, but not forgotten
'94 Dodge/Cummins - gone, but not forgotten
HoleshotHolset
12-28-2009, 12:35 PM #34(12-28-2009, 10:44 AM)ForcedInduction For about 500rpm with it spools up at 4000rpm!
Yeah - HX40's are lag pigs. Even on 5.9L Cummins engines. There are plenty of other options out there that will flow more and spool faster. Industrial Injection makes some very nice hybrid turbos - spendy, though.
I was VERY impressed with the ball bearing Garrett (GT37R ?) one friend of mine had on his Cummins ISB. The thing spooled nearly instantly and the EGT's stayed cool with a LOT of fuel even though he had a nasty crack in his intercooler. Again, a spendy bugger - but they seem to be very, very durable.
'07 W211 OM642
'95 W124.131/722.435, 211k - daily driver/Superturbo project - OM606.962 with "M" pump...under construction! (build thread here)
'99 W210.025 - gone, but not forgotten
'94 Dodge/Cummins - gone, but not forgotten
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