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Drag Racing Where ALL Racers are Welcome- From ET Bracket, all the way to ProStreet and Top Diesel! |
08-10-2018, 10:05 AM
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#21
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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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Quote:
Originally Posted by Timbeaux38
So what we have learned here is that we are technically safe up to say, 8259 RPM?
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Only the Dinosaurs; if a CR went up that high, it would short circuit.
__________________
2011 Ford F-150 Lariat 4X4
RIP BFD99, jponder, and Forrest Nearing
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08-10-2018, 04:05 PM
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#22
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Name: Rich dzl
Title: 12v guru
Status: Not Here
Join Date: Mar 2011
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Posts: 741
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Electronic fuel dump valve , or a fail safe rack design like a Detroit .. possible ? and would anyone buy theses if they was built ?
Last edited by Rich dzl; 08-10-2018 at 04:07 PM.
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08-10-2018, 05:31 PM
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#23
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,396
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One lever for both air kill and fuel dump valve. On trucks that are on the edge anyway.
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08-10-2018, 05:32 PM
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#24
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,396
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Or two levers side by side and close enough you grab them both easily at the same time.
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08-12-2018, 12:03 AM
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#25
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Name: Big Blue24
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Jan 2008
Location: Cedar City, UT
Member`s Gallery
Posts: 6,310
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Quote:
Originally Posted by jasonc
Or two levers side by side and close enough you grab them both easily at the same time.
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This is a great idea and we will definitely incorporate something similar on the build-up this time around. Now to figure out how to make a simple push button or push-lever that is leveraged to reliably pull the fuel dump and the air shutoff at the same time. It sounds like one of those "in your mind 4 hour fab projects" that ends up taking a full week to dial-in perfect... But I'll gladly trade a week of messing around with the safety activation system if it saves the engine... or driver's life!!!
__________________
95' 2wd Junker Drag Truck
1502 HP Fuel-Only 12mm P7100 Pump
SXE 472 over GTX55 116mm
OEM 12v Block
Last edited by Big Blue24; 08-12-2018 at 12:05 AM.
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08-12-2018, 10:28 AM
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#26
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
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Posts: 352
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This is what I came up with...On the left is fuel dump right is air kill, if I swing my arm down they fall right on the knobs. I had to use these when the little bracket that holds the throttle return spring broke on me. Its not a good feeling when you lift on the throttle at the end of the quarter and you gain more speed. cant imagine what went through your mind... my air kill shut it off immediately, next problem is no brakes and power steering is gone and your near the end of the shut down.. hard left hand turn of soft slicks, hope I never experience this again...
IMG 4021 - YouTube
__________________
2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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08-13-2018, 10:56 AM
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#27
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Name: Chris Tobin
Title: Too Much Time
Status: Not Here
Join Date: Jun 2008
Location: Dayton, TN
Member`s Gallery
Posts: 2,662
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Quote:
Originally Posted by Big Blue24
This is a great idea and we will definitely incorporate something similar on the build-up this time around. Now to figure out how to make a simple push button or push-lever that is leveraged to reliably pull the fuel dump and the air shutoff at the same time. It sounds like one of those "in your mind 4 hour fab projects" that ends up taking a full week to dial-in perfect... But I'll gladly trade a week of messing around with the safety activation system if it saves the engine... or driver's life!!!
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Quote:
Originally Posted by T-MAN
This is what I came up with...On the left is fuel dump right is air kill, if I swing my arm down they fall right on the knobs. I had to use these when the little bracket that holds the throttle return spring broke on me. Its not a good feeling when you lift on the throttle at the end of the quarter and you gain more speed. cant imagine what went through your mind... my air kill shut it off immediately, next problem is no brakes and power steering is gone and your near the end of the shut down.. hard left hand turn of soft slicks, hope I never experience this again...
IMG 4021 - YouTube
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For both of you, and any other fast guys... It probably would be a good idea to set it up to deploy the chutes at the same time as well... pulling three levers in the heat of the moment is likely to cause something to be missed while pulling one "oh crap" lever can do it all!!! Would be best with a master and slave setup where they can each be tripped/pulled individually in normal operation then in an emergency the single "oh crap" lever activates the fuel dump, air shutoff and pops the chutes...
__________________
Chris Tobin
Editor--Ultimate Diesel Builder's Guide
Freelance Editor and Photographer
Working with DIESEL WORLD, DIRT SPORTS, MUSCLE CAR POWER & STREET TRUCKS magazines
tobinemail@aol.com
I might be able to help get you in a mag.
Custom poster size photos available. PM or email for info.
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08-13-2018, 12:51 PM
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#28
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Name: 4x4dually
Title: Moderator
Status:
Here
Join Date: Jan 2007
Location: Stillwater, OK
Member`s Gallery
Posts: 31,791
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Holy hell!!!!
Quote:
Originally Posted by AsTroSS
Who remember : rev gain?
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Rev Gain is not supposed to be "exponential."
__________________
Jory 2009 4x4 3500 MCLB
"There are people far less intelligent than you making a living doing this stuff." - Jeff Mumau
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08-13-2018, 09:13 PM
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#29
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
Member`s Gallery
Posts: 10,822
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Parabolic
Sent from my XT1575 using Tapatalk
__________________
Check out @bdmaximusworx
05.5 Campanella White TDi Jetta 5spd 45.5MPG
-Little Sexy
'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
Insta @trash.panda250
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08-14-2018, 09:29 AM
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#30
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Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 18,833
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Engine disassembly 101:
Not like that.
Man that sucks for you guys, sorry to see, but glad you are alright.
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09-08-2018, 01:16 AM
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#31
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Name: Big Blue24
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Jan 2008
Location: Cedar City, UT
Member`s Gallery
Posts: 6,310
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__________________
95' 2wd Junker Drag Truck
1502 HP Fuel-Only 12mm P7100 Pump
SXE 472 over GTX55 116mm
OEM 12v Block
Last edited by Big Blue24; 09-08-2018 at 01:18 AM.
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09-08-2018, 08:45 AM
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#32
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Name: 9724VF350
Title: Tractor Guy
Status: Not Here
Join Date: Mar 2010
Location: Northeast Ohio
Member`s Gallery
Posts: 2,784
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I'm assuming you're running hand throttle. How about when you pull it back to idle, it can go past a detent, and pull further to dump fuel, air, whatever. No searching for a lever, your hand is already on it.
__________________
97 F350 4X4 CC Dually 5spd 24V 913 S300/HT3B Ranch Hand.
Playtoy-Oliver 1655. 12V now , 13mm, S475
Wife's ride-03 Excursion 12V swap in the works.
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09-08-2018, 10:02 AM
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#33
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Name: Rich dzl
Title: 12v guru
Status: Not Here
Join Date: Mar 2011
Member`s Gallery
Posts: 741
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Saw a post from Seth that the rack didn't stick . Linkage issue ? Can't wait to see this at ucc again
Last edited by Rich dzl; 09-08-2018 at 10:04 AM.
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09-10-2018, 11:37 AM
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#34
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Name: Phooker
Title: Gluten Free
Status: Not Here
Join Date: Jul 2006
Location: Lake Charles, La
Member`s Gallery
Posts: 7,466
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Quote:
Originally Posted by Rich dzl
Saw a post from Seth that the rack didn't stick . Linkage issue ? Can't wait to see this at ucc again
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https://www.youtube.com/watch?v=7fS_Vm8MNaM
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09-10-2018, 06:58 PM
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#35
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
Member`s Gallery
Posts: 17,369
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Nothing for nothing but that rack was moving but it was not at temperature nor under a load? Put that senerio in the mix and see if the rack gets sticky....
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09-10-2018, 07:51 PM
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#36
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
Member`s Gallery
Posts: 17,369
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Can we see what data log was reading before things wound up? I wonder if the injection pump housing was fracturing before the boom......
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09-10-2018, 09:09 PM
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#37
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Name: CTDYoungGun
Title: Seth- Fuel Injection Guy
Status: Not Here
Join Date: Aug 2007
Location: Kansas City, Mo
Member`s Gallery
Posts: 1,568
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Quote:
Originally Posted by RacinDuallie
Nothing for nothing but that rack was moving but it was not at temperature nor under a load? Put that senerio in the mix and see if the rack gets sticky....
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If a plunger seizes/ hangs that's it- it's stuck and will be stuck until it gets hammered apart at a fuel shop.
Quote:
Originally Posted by RacinDuallie
Can we see what data log was reading before things wound up? I wonder if the injection pump housing was fracturing before the boom......
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From my talks with Will and Todd, the data log showed all 6 cylinders at normal exhaust temp through the whole run. Stuck plunger = ice cold cylinder because it's not getting any fuel.
I intentionally hadn't commented or posted until I got the pump back. Pulled the pump out of the box and made the quick video to post what we found. No finger pointing or politics, it is was it is.
__________________
Seth Farrell
Farrell Diesel Service
816-205-0757
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09-11-2018, 12:45 AM
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#38
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Name: Big Blue24
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Jan 2008
Location: Cedar City, UT
Member`s Gallery
Posts: 6,310
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After the blow-up, we could not locate the throttle return springs so either they were blown off and missed in the track cleanup (unlikely but possible), or the throttle return springs were missed during the rushed slam the engine into the truck and go racing (likely but no one knows for certain). As Seth mentioned, none of the cylinders went cold and the pump internals were in great shape so this is most likely a self-inflicted stuck throttle incident and just so happened to occur when the air shutoff failed. The take-away lesson is make dang sure everything is ready before making a run down the track when you're playing with a 16mm pump and (3) GT55 chargers!!!
__________________
95' 2wd Junker Drag Truck
1502 HP Fuel-Only 12mm P7100 Pump
SXE 472 over GTX55 116mm
OEM 12v Block
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09-11-2018, 05:59 AM
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#39
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Name: Phooker
Title: Gluten Free
Status: Not Here
Join Date: Jul 2006
Location: Lake Charles, La
Member`s Gallery
Posts: 7,466
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And hopefully a throttle with a toe catch on it?
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09-11-2018, 07:05 AM
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#40
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Name: sootie
Title: .....like a BAWSS
Status: Not Here
Join Date: Jan 2013
Member`s Gallery
Posts: 866
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I'm still utterly amazed at the fortitude to select neutral in that scenario...
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