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Video A Place For Question's and Comments on Videos. |
05-19-2009, 08:42 PM
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#41
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Name: gotta12v
Title: Too Much Time
Status: Not Here
Join Date: Dec 2006
Location: Fayette MO
Member`s Gallery
Posts: 435
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the work we did on the dyno is opposite of what your saying.
according to you our motor should run cooler with the hx82 3.6 and 600ccs than the 2.8 s400 and 600cc's correct?
we ran both setups and 600cc's with the hx82 and the motor would run so hot it wouldve melted before it made it halfway down the pull track
like I said practice sometimes differs from principle
if our motor is so grossly over fueled to cool the egts it must be working It won 2.8 at schied in 08 and 2.8 at ts in 09
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05-19-2009, 09:06 PM
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#42
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Name: MCummings
Title: It's my name ^
Status: Not Here
Join Date: Mar 2008
Location: Laredo, Tx
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Posts: 359
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Quote:
Originally Posted by gotta12v
if our motor is so grossly over fueled to cool the egts it must be working It won 2.8 at schied in 08 and 2.8 at ts in 09
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That's what I'm thinking, and it sure looks like it is working...
If I may ask, Where are you increasing the duration?
Is more fuel getting injected later, or earlier? I assume you can change this with the pumps cam styling.
Are you trying to inject alot of fuel, and then dribble it off, or a little fuel to get the fire going, then alot more fuel to cool it off, or keep it cool?
I'm really curious, and super excited to learn.
Thanks,
Merrick
__________________
'98.5 3500 2wd 6-speed
500HP/1000TQ Dual Wheels, Turbos and Clutch. That's why I call it.. "My Dually...
'98.0 2500 Auto 4wd, VGT from a 6.7, Floor It Trans.
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05-19-2009, 09:10 PM
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#43
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Name: Glasseater
Title: Too Much Time
Status: Not Here
Join Date: Jun 2007
Location: central jersey
Member`s Gallery
Posts: 1,471
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Quote:
Originally Posted by gotta12v
the work we did on the dyno is opposite of what your saying.
according to you our motor should run cooler with the hx82 3.6 and 600ccs than the 2.8 s400 and 600cc's correct?
we ran both setups and 600cc's with the hx82 and the motor would run so hot it wouldve melted before it made it halfway down the pull track
like I said practice sometimes differs from principle
if our motor is so grossly over fueled to cool the egts it must be working It won 2.8 at schied in 08 and 2.8 at ts in 09
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i'm curious though how overfueled you were with that hx82 though... its been said that a light haze is the best air/fuel ratio for making power with a diesel, i'm curious as to what would happen if you guys got an even bigger charger and tried to use up all that fuel, what would happen with the EGTs? would they start dropping again just like they do when you add more fuel? i'm thinking they would...
the only problem is that in pulling you can't just keep up-sizing the turbo
__________________
1997 ford f350 crew cab long bed powerstroke diesel
14.06@93.8
looking for 250 more hp and 500lbs less...
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05-19-2009, 09:53 PM
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#44
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Name: gotta12v
Title: Too Much Time
Status: Not Here
Join Date: Dec 2006
Location: Fayette MO
Member`s Gallery
Posts: 435
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I guess the only way to figure any of this would be to be able the measue the air fuel ratio. measure the stock air fuel ratio then proportionally add fuel and air at the same rate.
but heres the monkey wrench. In order to turn a larger turbo it requires more engine rpm. as engine rpm increases the window of burn time decreases. this is why we have to increase injection timing, add more fill time to the injection camshaft in the pump increase the delivery rate of the pump (both in the injection ramp and larger plunger and barrels)
the only way I could see this sort of research being done would be with a stand alone ecm on a cr setup.
you would have to proportionally increase fuel with the increase in cfm of air as well as keeping the injection rate in proportion to rpm.
another reason why we run large nozzels to deliver the large quantity of fuel fast.
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05-19-2009, 10:04 PM
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#45
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Name: gotta12v
Title: Too Much Time
Status: Not Here
Join Date: Dec 2006
Location: Fayette MO
Member`s Gallery
Posts: 435
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Quote:
Originally Posted by MCummings
That's what I'm thinking, and it sure looks like it is working...
If I may ask, Where are you increasing the duration?
Is more fuel getting injected later, or earlier? I assume you can change this with the pumps cam styling.
Are you trying to inject alot of fuel, and then dribble it off, or a little fuel to get the fire going, then alot more fuel to cool it off, or keep it cool?
I'm really curious, and super excited to learn.
Thanks,
Merrick
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by increasing duration all I mean is we add fuel via rack travel from the pump
(if its hot at 600cc's well add 50cc with some more rack travel form the pump)
in a high rpm motor you want a fast injection cam, however the way the opening ramp is ground probably differs from each pump shop. this is why some pumps can run more time and make power (they are slower opening ramps) and other make more power with less time
cut dvs add alot of early and late fuel (and smoke) however most race pumps run them as it removes a restriction in the system. how a race pump would run with a regular dv I dont know, however most pump shops will tell you that it will cause to much internal restriction and beat the cams out of them
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05-19-2009, 10:12 PM
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#46
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Name: Glasseater
Title: Too Much Time
Status: Not Here
Join Date: Jun 2007
Location: central jersey
Member`s Gallery
Posts: 1,471
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humm hearing about all this makes me wonder how long it'll take until the CR systems surpass the mechanical pumps for highest hp... think about how much fuel those CR injectors can get out in a VERY short amount of time... i know that this is the main reason why the 7.3 has issues with making high hp... the injection system simply cannot flow enough fuel in that short of a time period...
__________________
1997 ford f350 crew cab long bed powerstroke diesel
14.06@93.8
looking for 250 more hp and 500lbs less...
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05-19-2009, 10:20 PM
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#47
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Name: gotta12v
Title: Too Much Time
Status: Not Here
Join Date: Dec 2006
Location: Fayette MO
Member`s Gallery
Posts: 435
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I agree that the cr with the ecm capabilities the cr could surpass the mechanical. however at elevated rpm Im not sure if the cr injector could fire fast enough (remember it has to fire 3 times per power stroke)
for all out performance piezo injectors would probably be needed (can fire much faster)
even still the peak numbers may not be higher (the mecanical system can already make more power than the block can take) however much larger power curves could be achieved and the motor could be made to be much more responsive wich will be crucial for a diesel to ever be a competitive drag racer.
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05-19-2009, 10:38 PM
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#48
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Name: tylerrustLB7
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2008
Location: Stephenville Tx
Member`s Gallery
Posts: 60
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Chester,how is it going? Been awhile.This is Tyler, Donnel's nephew. Scott has been telling us about this truck yall have been working on.Look's like yall got it running pretty good!
__________________
03 LB7 EC/SB 2wd
EFI...510hp/12.93@106mph Fuel Only
Diesel Addiction Tuned
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05-20-2009, 08:17 AM
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#49
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Name: Glasseater
Title: Too Much Time
Status: Not Here
Join Date: Jun 2007
Location: central jersey
Member`s Gallery
Posts: 1,471
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Quote:
Originally Posted by gotta12v
I agree that the cr with the ecm capabilities the cr could surpass the mechanical. however at elevated rpm Im not sure if the cr injector could fire fast enough (remember it has to fire 3 times per power stroke)
for all out performance piezo injectors would probably be needed (can fire much faster)
even still the peak numbers may not be higher (the mecanical system can already make more power than the block can take) however much larger power curves could be achieved and the motor could be made to be much more responsive wich will be crucial for a diesel to ever be a competitive drag racer.
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if there was a way to get rid of those multiple injections per power stroke i think the CR system would do MUCH better!!! or if it was able to basically "shut off" 2 of those 3 injections and just have one big one... and talking about piezo injectors, the 6.4 uses i believe 7 injections per power stroke
__________________
1997 ford f350 crew cab long bed powerstroke diesel
14.06@93.8
looking for 250 more hp and 500lbs less...
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05-20-2009, 01:13 PM
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#50
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Name: MCummings
Title: It's my name ^
Status: Not Here
Join Date: Mar 2008
Location: Laredo, Tx
Member`s Gallery
Posts: 359
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The Bosch software allows you to do pretty much whatever you want, it's a standalone controller..
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Chester, Keep up the good work. That truck is totally awesome.
Quick question, Have you thought about using high temp coatings for the head and pistons to slow the melting?
Merrick
__________________
'98.5 3500 2wd 6-speed
500HP/1000TQ Dual Wheels, Turbos and Clutch. That's why I call it.. "My Dually...
'98.0 2500 Auto 4wd, VGT from a 6.7, Floor It Trans.
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05-21-2009, 12:40 PM
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#51
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Name: tnunnelee
Title: Chester's Extreme Diesel
Status: Not Here
Join Date: Mar 2009
Member`s Gallery
Posts: 6
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Hey didn't want you all to think I had abandoned this. I am just sitting quietly taking notes and drawing out some ideas.
Thanks again
Chester
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05-21-2009, 02:30 PM
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#52
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Name: Glasseater
Title: Too Much Time
Status: Not Here
Join Date: Jun 2007
Location: central jersey
Member`s Gallery
Posts: 1,471
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Quote:
Originally Posted by tnunnelee
Hey didn't want you all to think I had abandoned this. I am just sitting quietly taking notes and drawing out some ideas.
Thanks again
Chester
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keep us updated on how everything you try works out!
__________________
1997 ford f350 crew cab long bed powerstroke diesel
14.06@93.8
looking for 250 more hp and 500lbs less...
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05-21-2009, 03:08 PM
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#53
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Name: tnunnelee
Title: Chester's Extreme Diesel
Status: Not Here
Join Date: Mar 2009
Member`s Gallery
Posts: 6
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You got it! And as soon as I get some more videos made you all will be the first to know!
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08-18-2009, 11:03 AM
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#54
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Name: tnunnelee
Title: Chester's Extreme Diesel
Status: Not Here
Join Date: Mar 2009
Member`s Gallery
Posts: 6
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Ok folks....just got my bearing back, its been a busy summer. We have done our research and made some changes. I am getting all of the video together. Here is something just to keep you going. This is video that was taped the next day after our tests. It was BEFORE this thread started. I WILL have some new video for you, with much better results, in the next week.
YouTube - The First race of 2009
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08-18-2009, 11:39 AM
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#55
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Name: not enoughsmoke
Title: floatin in tha gulf
Status: Not Here
Join Date: Dec 2008
Location: tenn
Member`s Gallery
Posts: 5,730
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Quote:
Originally Posted by tnunnelee
Ok folks....just got my bearing back, its been a busy summer. We have done our research and made some changes. I am getting all of the video together. Here is something just to keep you going. This is video that was taped the next day after our tests. It was BEFORE this thread started. I WILL have some new video for you, with much better results, in the next week.
YouTube - The First race of 2009
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U GONNA BE AT THE SUGAR FARM AT THE END OF THIS MONTH?
__________________
1995 F350 Powerstroke
1995 F350 Fummins
1995 F250 lightning clone
1968 Fastback GT
2003 F150
1994 F350 IDIT
1988 F350 IDIT
2003 Dodge 2500
1999 F250 Powerstroke
1993 F250 Fummins
1979 F350
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08-18-2009, 12:43 PM
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#56
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Name: Glasseater
Title: Too Much Time
Status: Not Here
Join Date: Jun 2007
Location: central jersey
Member`s Gallery
Posts: 1,471
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Quote:
Originally Posted by tnunnelee
Ok folks....just got my bearing back, its been a busy summer. We have done our research and made some changes. I am getting all of the video together. Here is something just to keep you going. This is video that was taped the next day after our tests. It was BEFORE this thread started. I WILL have some new video for you, with much better results, in the next week.
YouTube - The First race of 2009
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need either more air or more fuel to cool that thing down!
__________________
1997 ford f350 crew cab long bed powerstroke diesel
14.06@93.8
looking for 250 more hp and 500lbs less...
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08-18-2009, 01:50 PM
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#57
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Name: WUnderwood
Title: CompD Minion
Status: Not Here
Join Date: Aug 2006
Location: Texas
Member`s Gallery
Posts: 8,418
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what piston did you melt?
__________________
2011 Ford F-150 Lariat 4X4
RIP BFD99, jponder, and Forrest Nearing
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08-18-2009, 03:40 PM
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#58
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Name: JDGnut
Title: Too Much Time
Status: Not Here
Join Date: Jun 2006
Location: Waxahachie, TX
Member`s Gallery
Posts: 405
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Is that a 24V pistons??? looks like the bowl is in the center.. Little hard to tell with the conditions..
I think I'd try a bigger charger.. with the NOS to spool it.. and get the bugs out of the water... That thing is super impressive...
Good Luck
Bryan
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08-18-2009, 08:37 PM
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#59
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Name: SPEEDSHIFT
Title: Too Much Time
Status: Not Here
Join Date: Jan 2007
Location: San Antonio, TX
Member`s Gallery
Posts: 5,978
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Very Impressive truck!
__________________
@bodie_armstrong
2003 2500 4x4 auto FOR SALE
2005 2500 4x4 auto Drag Truck
2013 3500 4x4 Aisin Dually Tow Rig
Tenacity Tuning, Longs Machine Shop, BD Diesel Performance
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09-10-2009, 11:03 AM
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#60
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Name: 97crewcab
Title: Wrong.
Status: Not Here
Join Date: Aug 2006
Member`s Gallery
Posts: 2,804
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