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08-08-2012, 10:30 PM
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#1
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Name: dieselstudent11
Title: Rookie
Status: Not Here
Join Date: Mar 2012
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Posts: 24
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Injecting fuel pre turbo?
I was thinking, would injecting diesel pre turbo cause the air to mix with the fuel before it reached the cylinders? Maybe the turbulence of the compressor wheel would blend it together? Just a thought, and was interested if its been tried before / opinions.
Not suggesting using this as the primary source of fuel injection, but as a power boost like injecting nitrous etc...
I imagine it could just completely not work and coat your turbo housing in diesel.
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08-08-2012, 10:50 PM
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#2
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Name: JQmile
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2006
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Posts: 6,976
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A few people have tried it. Usually good to have a video camera, blows up pretty good! It would be interesting to do on a super-dropped compression engine. Might work better one of those.
__________________
89 Dodge 972rwhp on the hose, still a VE!
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08-08-2012, 10:53 PM
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#3
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Name: Fireman450
Title: Daring to be diffrent!!
Status: Not Here
Join Date: Nov 2007
Location: Edmonton , KY
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Posts: 1,606
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Meh... doubtful....
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Lynn Chapman
Driver: 04.5 CR
Play Toy:1994 Dodge 12V, SMOKE SHOWIN! 2WD Pulling Team. vs. 3.0 in progress. Thanks to Northeast Diesel, MUMAU DIESEL , PullTech Chassis & Fab, Cooper High Performance, SKPP, Joe Gibbs Racing/Driven Racing Oils and all my friends and family!
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08-08-2012, 10:58 PM
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#4
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Name: dieselstudent11
Title: Rookie
Status: Not Here
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Posts: 24
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JQ, does it blow up before making it to the engine or does it blow up from the added power?
something tells me its the first one
edit: I suppose having fuel in the engine mid compression stroke could explode as well.
Last edited by dieselstudent11; 08-08-2012 at 11:00 PM.
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08-09-2012, 12:01 AM
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#5
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Name: JQmile
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2006
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Posts: 6,976
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It pre-ignites like in a gas engine with too much timing. In this case, the fuel will ignite after only 410 deg, which, with a turbo pushing 150 deg into the engine, is a little too early on the stroke. That rattle you hear in diesels gets real bad.....even methanol can be used in an autoignition capacity with enough compression (around 19:1).
__________________
89 Dodge 972rwhp on the hose, still a VE!
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08-09-2012, 12:06 AM
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#6
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Name: JQmile
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2006
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Posts: 6,976
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You could calculate when the fuel would ignite based upon the compression ratio, piston speed, pressure, volume, etc, but it's too much math for me to want to do at this hour. I'd try it on a cheap diesel at high rpm maybe.
__________________
89 Dodge 972rwhp on the hose, still a VE!
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08-09-2012, 01:24 AM
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#7
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Name: AHall
Title: Hobbyist
Status: Not Here
Join Date: Apr 2007
Location: Western Slope, CO
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Posts: 4,603
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I read somewhere years ago the 6.0 guys used a small system/wet n20 to hold the highest hp/et stock injector record.
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08-09-2012, 01:25 AM
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#8
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Name: dieselstudent11
Title: Rookie
Status: Not Here
Join Date: Mar 2012
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Posts: 24
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That makes complete sense thanks for the info.
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08-09-2012, 06:48 PM
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#9
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Name: Samaras Diesel
Title: Billet steel
Status: Not Here
Join Date: Jan 2012
Location: Glasgow, KY
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Posts: 682
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We run a draw threw setup on our pulling tractor that works very very well. its composed of a stock hx35, a 90' elbow and a homemade flange welded to it with a 750 holley carb ontop. we run 30psi of boost with it. anybody intreseted enough for me to post pics?
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00' Dodge ext. cab 4x4 nv4500
Kentucky clutch 3800# pressure plate
60mm HX35 autometer guages
Edge juice with attitude hot unlocked with 6x.013 injectors
AirDog raptor 150 w/ remote mount fuel filters
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08-09-2012, 07:17 PM
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#10
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Name: bluehotfarm
Title: Green Behind the Ears
Status: Not Here
Join Date: Apr 2012
Location: wisconsin
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Posts: 61
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yes post them up!
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08-09-2012, 07:36 PM
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#11
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Name: apocalypse1812
Title: Nailed It!
Status: Not Here
Join Date: Nov 2006
Location: Odessa, Tx
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Posts: 6,180
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What about injecting gasoline post cylinder head/pre turbo, in the exhaust tract to help spool?
That might work.
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08-09-2012, 07:42 PM
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#12
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Name: Lostnwalmart
Title: Too Much Time
Status: Not Here
Join Date: Jul 2006
Location: Tokyo Japan
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Posts: 8,970
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Why would you inject an unmeasured amount of fuel into an engine that is throttled by fuel??
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Ecorico scooter!!
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Anybody that would not haul a dinosaur for an orphanage is no friend of mine.
To some people it's all about money. Geez
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08-09-2012, 07:57 PM
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#13
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Name: dieselstudent11
Title: Rookie
Status: Not Here
Join Date: Mar 2012
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Posts: 24
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Samaras please post some pics!
You could certainly measure how much your injecting but that really wouldnt matter seeing how this idea would probably cause detonation as JQ said but I am interested in this draw thru carb wizardry.
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08-09-2012, 09:05 PM
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#14
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Name: apocalypse1812
Title: Nailed It!
Status: Not Here
Join Date: Nov 2006
Location: Odessa, Tx
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Posts: 6,180
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Quote:
Originally Posted by Lostnwalmart
Why would you inject an unmeasured amount of fuel into an engine that is throttled by fuel??
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Um, crazy power... Hello?
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08-09-2012, 09:10 PM
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#15
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Name: roachie
Title: Taco Master
Status: Not Here
Join Date: Nov 2007
Location: East TN
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Posts: 11,133
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That just spells destruction.
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99 F250____sold (to a ninja)
01 F250____Mexican F150
04 F350____Fat boy
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08-09-2012, 09:11 PM
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#16
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Name: Schrowang
Title: Schroowwwaaaannnnnggggggg
Status: Not Here
Join Date: May 2011
Location: China, illinois
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Posts: 5,897
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Nahh your just using fuel to cool the turbo.
Posted to CumminsForum via autoguide for iphone.
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BRAD
16 F350 platinum
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08-10-2012, 12:14 AM
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#17
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Name: YOUNG GUNS15
Title: Im AWESOME!!!!
Status: Not Here
Join Date: Sep 2009
Location: Utah
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Posts: 7,346
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Quote:
Originally Posted by roachie
That just spells destruction.
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Someone PLEASE video it.... Can you say run away!?
My grandpas old 50's d7 cable dozer has an aftermarket turbo and an oil bath air cleaner, one day we put to much oil/ diesel mix in it and that sucker ran away for a good 3 minutes. Finnally settled back down, amazing it still runs
__________________
Spence
-1994 4x4 12 valve 13mm, single 475 748/1292 Fuel 872/1470 N2O
-2005 4x4 12 valve CCSB 3rd gen '12-rail' 280hp
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08-10-2012, 01:23 AM
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#18
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Name: straight 6 roar
Title: Too Much Time
Status: Not Here
Join Date: Nov 2010
Location: Oahu, Hawaii
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Posts: 1,031
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Quote:
Originally Posted by apocalypse1812
What about injecting gasoline post cylinder head/pre turbo, in the exhaust tract to help spool?
That might work.
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See too many Hornets hit the burner cans in your day?
On a side note that would be incredible to see what happens.
Injecting fuel pre-intake is ridiculous, it will definitely pre-detonate far far from TDC and hammer your engine to pieces.
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2006 QCSB 2500 4x4 67/83/.90, +60% overs, TRE trans
1998 QCSB 2500 12 valve 4x4 Sold and missed
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08-10-2012, 05:29 AM
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#19
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Name: apocalypse1812
Title: Nailed It!
Status: Not Here
Join Date: Nov 2006
Location: Odessa, Tx
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Posts: 6,180
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Quote:
Originally Posted by straight 6 roar
See too many Hornets hit the burner cans in your day?
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Exactly
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08-10-2012, 09:21 AM
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#20
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Name: RonA
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Location: Liberal ground zero.
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Posts: 11,058
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These guys are all pulling your chain. It works great. Gasoline is best. Take video.
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55 years of work and all I got was a T-shirt.
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