Water Injection - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RANDY COX · 09-09-2004, 09:48 PM

HAS anyone ever heard of a water injection or ran one on there vehicle.Just curious.

cdowns · 09-09-2004, 10:00 PM

those gizmos been around since the 20's !! the theory sounds great but in real life not much of anything

daves72C10D · 09-09-2004, 10:06 PM

My uncle had this on an old toyota pickup, got better gas milage. I run WI under high boost (20 psi on 93 octane) on my talon to soak up heat from combustion which lowers knock threshold and allows more timing.

cableguy0 · 09-09-2004, 10:25 PM

old trick was real popluar way back when the water raises your compression because water cant be compressed it will make a power difference

1969 GMC · 09-09-2004, 11:28 PM

the new Subaru WRX STi has a manual water jet button, but its for the intercooler.

Lippyp · 09-10-2004, 06:04 AM

The Ford Escort Cosworth (which like the Subaru was derived from a World Rally Car) had water injection as standard, as above I believe the purpose is to help prevent detonation.

Sweet72 · 09-10-2004, 06:18 AM

Water injection was used in some of the old aircraft recip motors.

Longhorn Man · 09-10-2004, 07:05 AM

My 69 had water injection.

Injected it through the block and into the oil pan.

68C15 · 09-10-2004, 07:12 AM

I was half expecting you to say that Andy.
in theory it is a wonderful idea. the logistics are quite hard to figure out. too much or in the wrong position will just tend to wash the fuel to the side of runners or cylinder. if a person is willing to go through all that they might as well spend the time tuning the fuel & ignition curve while choosing the right cam & engine combo.

BET68 · 09-10-2004, 09:06 AM

ANDY DID IT HELP YOUR GAS MILEAGE?

Longhorn Man · 09-10-2004, 10:17 AM

LOL, no, didn't help the MPG too much.
Would you believe the motor ingested over a gallon of coolant in less than 10 miles...yet it ran 100% fine?
That's what I get for saying that it was more dependable than gravity huh?

beaterC10 · 09-10-2004, 10:33 AM

Its used in industrial gas turbines to help meet emissions requirements and was used in aircraft gas turbines to increase the density of the fuel/air mixture which increased power.

junkyardjohn · 09-10-2004, 10:48 AM

I BOUGHT A 69 3/4 TON LONG FLEET, JUST FOR THE MOTOR. IT HAD A 1968 427 OUT OF A VETTE. IN IT, & HAD WATER INJECTION ON IT. I REMOVED IT WHEN I PULLED THE MOTOR & TRANS. I REPLACED IT WITH A 305 & A T-350 & SOLD THE TRUCK FOR ALMOST WHAT I PAID FOR IT.

JOHN

**CPNE** · 09-10-2004, 11:03 AM

Oldsmobiles 61-63

RON WOODGEARD · 09-10-2004, 01:41 PM

In the 70's it was a big fad to run Water Injection, It was a major company, ( Can't seem to remember the name) My brother ran it on a Built Vega Motor, We could never prove any additional power by doing so..

flip66 · 09-10-2004, 04:35 PM

My uncle was a service manger for a Cadillac dealer in the early 80s about the time they came about with the motor that would drop cylinders the less power you need. He said people would complain about the pinging so they would put water injection on them to stop it.

Eddie H. · 09-10-2004, 08:13 PM

Water injection was originally used on supercharged aircraft engines in WW2 to help keep them from self destructing from detonation under high boost.

It has also been successfully used on various types of racing engines.

These guys make a pretty good system for automotive use, if you
're running a blower or turbo setup.

http://www.kennedysdynotune.com/waterinjected.htm

Lgriffin · 09-10-2004, 11:02 PM

EddieH., My Dad told me they put 55 gal. drums behind the Pilots seat with Alcohol and water to cool the cylinders. It was neccessary to cool the cylinders climbing after Zeros. That was the only tine they used it and it didn't last long, 3,200 horse radial.
Larry
68 C20 327/465 daily driver 4:56 och!
63 C20 292/420 Camper truck Detroit Locker 4:10 posi
65 C10 ? /powerglide Custom Cab AC,PB,PS,4xflasher
70 C10 250/3spd org/Gauge dash,Wood bed, 4Sale$1300

daves72C10D · 09-11-2004, 08:17 AM

You can make a good kit for about $200. 12v DC pump from Northern Tool, Aquamist nozzle, Napa pressure sensor (if needed) tubing, wiring and switches. Aquamist nozzles work the best and are worth the money we have found from our testing.

1BadSS · 09-11-2004, 08:49 AM

Quote:

Originally Posted by flip66

My uncle was a service manger for a Cadillac dealer in the early 80s about the time they came about with the motor that would drop cylinders the less power you need. He said people would complain about the pinging so they would put water injection on them to stop it.

The cadillac 8-6-4 was the WORST motor ever made....

Longhorn Man · 09-12-2004, 02:03 AM

Quote:

Originally Posted by 1BadSS

The cadillac 8-6-4 was the WORST motor ever made....

I dunno...the olds 260 and 350 diesel motors were steeming piles of dung. At least teh Caddy engine can donate a bunch of awsome parts for the bigger 425/472/500 inch big blocks.

Although, I am not arguing...they were junk. Most can be had with very few miles...only becouse they didn't run most the time.

Dodge does thgis on there new Hemi...glad the computers have come a long way since the caddy atempt.

Tx Firefighter · 09-12-2004, 07:54 AM

Most of the 4-6-8 Caddy engines were converted to normal operation by the dealers due to the amount of trouble they caused.

LONGHAIR · 09-12-2004, 09:12 AM

Edelbrock made a kit for this back in the late 70s-early 80s.

Eddie H. · 09-12-2004, 04:31 PM

My uncle was an aircraft mechanic during WW2. He told me stories of planes coming back aboard the carrier after a mission with cylinders melted down, or completely gone after they used up all their alcohol/water mixture in a heated dogfight with zeros.

09-09-2004, 09:48 PM	#1
RANDY COX Registered User Join Date: Mar 2001 Location: RADFORD, VA Posts: 2,651	Water Injection HAS anyone ever heard of a water injection or ran one on there vehicle.Just curious. __________________ 1964 BBC 402 4x4

09-09-2004, 10:00 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	those gizmos been around since the 20's !! the theory sounds great but in real life not much of anything __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

09-09-2004, 10:06 PM	#3
daves72C10D Registered User Join Date: Mar 2004 Location: Vale, NC Posts: 283	My uncle had this on an old toyota pickup, got better gas milage. I run WI under high boost (20 psi on 93 octane) on my talon to soak up heat from combustion which lowers knock threshold and allows more timing. __________________ 1972 Custom 10 Deluxe- original paint, interior- 72k miles http://www.cardomain.com/ride/2466316 Cheap, Fast or Good. Pick any two. 1990 Eagle Talon AWD 1991.5 W250 CTD 1992 Cushman Truckster- Haulster

09-09-2004, 10:25 PM	#4
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	old trick was real popluar way back when the water raises your compression because water cant be compressed it will make a power difference __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

09-09-2004, 11:28 PM	#5
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	the new Subaru WRX STi has a manual water jet button, but its for the intercooler. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

09-10-2004, 06:04 AM	#6
Lippyp English Chevy Owner Join Date: May 2002 Location: Shropshire, UK/ Lot, France Posts: 1,848	The Ford Escort Cosworth (which like the Subaru was derived from a World Rally Car) had water injection as standard, as above I believe the purpose is to help prevent detonation. __________________ Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission

09-10-2004, 06:18 AM	#7
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	Water injection was used in some of the old aircraft recip motors. __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.

09-10-2004, 07:05 AM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	My 69 had water injection. Injected it through the block and into the oil pan.

09-10-2004, 07:12 AM	#9
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	I was half expecting you to say that Andy. in theory it is a wonderful idea. the logistics are quite hard to figure out. too much or in the wrong position will just tend to wash the fuel to the side of runners or cylinder. if a person is willing to go through all that they might as well spend the time tuning the fuel & ignition curve while choosing the right cam & engine combo. __________________ Man rule #77...if you own a 67 stepside with a caddy 472 you will never be in danger of loosing you man card

09-10-2004, 09:06 AM	#10
BET68 Registered User Join Date: Mar 2004 Location: BREVARD NC Posts: 156	ANDY DID IT HELP YOUR GAS MILEAGE? __________________ NAMASTE B&E 1971 LONGHORN C-30 1969 LONGHORN C-20 1968 DUALLY 1970 STEP SIDE PROJECT 1972 CST C-20 1980 M-80 MALIBU FOR SALE 1974 NOVA FOR SALE:

09-10-2004, 10:17 AM	#11
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	LOL, no, didn't help the MPG too much. Would you believe the motor ingested over a gallon of coolant in less than 10 miles...yet it ran 100% fine? That's what I get for saying that it was more dependable than gravity huh?

09-10-2004, 10:33 AM	#12
beaterC10 Senior Member Join Date: Jul 2003 Location: Indianapolis, IN Posts: 1,277	Its used in industrial gas turbines to help meet emissions requirements and was used in aircraft gas turbines to increase the density of the fuel/air mixture which increased power.

09-10-2004, 10:48 AM	#13
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	I BOUGHT A 69 3/4 TON LONG FLEET, JUST FOR THE MOTOR. IT HAD A 1968 427 OUT OF A VETTE. IN IT, & HAD WATER INJECTION ON IT. I REMOVED IT WHEN I PULLED THE MOTOR & TRANS. I REPLACED IT WITH A 305 & A T-350 & SOLD THE TRUCK FOR ALMOST WHAT I PAID FOR IT. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

09-10-2004, 11:03 AM	#14
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	Oldsmobiles 61-63 __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

09-10-2004, 01:41 PM	#15
RON WOODGEARD Resident Young Old Dude ! Join Date: Jul 2001 Location: Nevada Posts: 1,948	In the 70's it was a big fad to run Water Injection, It was a major company, ( Can't seem to remember the name) My brother ran it on a Built Vega Motor, We could never prove any additional power by doing so..



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09-10-2004, 04:35 PM	#16
flip66 Registered User Join Date: Jan 2004 Location: Garland TX Dallas area Posts: 658	My uncle was a service manger for a Cadillac dealer in the early 80s about the time they came about with the motor that would drop cylinders the less power you need. He said people would complain about the pinging so they would put water injection on them to stop it.

09-10-2004, 08:13 PM	#17
Eddie H. Registered User Join Date: Mar 2001 Location: Paradise TX USA Posts: 1,200	Water injection was originally used on supercharged aircraft engines in WW2 to help keep them from self destructing from detonation under high boost. It has also been successfully used on various types of racing engines. These guys make a pretty good system for automotive use, if you 're running a blower or turbo setup. http://www.kennedysdynotune.com/waterinjected.htm __________________ "Negative people always seem to have a problem for every solution"

09-10-2004, 11:02 PM	#18
Lgriffin Registered User Join Date: Jan 2004 Location: Oakdale, CA Posts: 101	EddieH., My Dad told me they put 55 gal. drums behind the Pilots seat with Alcohol and water to cool the cylinders. It was neccessary to cool the cylinders climbing after Zeros. That was the only tine they used it and it didn't last long, 3,200 horse radial. Larry 68 C20 327/465 daily driver 4:56 och! 63 C20 292/420 Camper truck Detroit Locker 4:10 posi 65 C10 ? /powerglide Custom Cab AC,PB,PS,4xflasher 70 C10 250/3spd org/Gauge dash,Wood bed, 4Sale$1300

09-11-2004, 08:17 AM	#19
daves72C10D Registered User Join Date: Mar 2004 Location: Vale, NC Posts: 283	You can make a good kit for about $200. 12v DC pump from Northern Tool, Aquamist nozzle, Napa pressure sensor (if needed) tubing, wiring and switches. Aquamist nozzles work the best and are worth the money we have found from our testing. __________________ 1972 Custom 10 Deluxe- original paint, interior- 72k miles http://www.cardomain.com/ride/2466316 Cheap, Fast or Good. Pick any two. 1990 Eagle Talon AWD 1991.5 W250 CTD 1992 Cushman Truckster- Haulster

09-12-2004, 07:54 AM	#22
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Most of the 4-6-8 Caddy engines were converted to normal operation by the dealers due to the amount of trouble they caused. __________________ I'm on the Instagram- @Gearhead_Kevin

09-12-2004, 09:12 AM	#23
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	Edelbrock made a kit for this back in the late 70s-early 80s.

09-12-2004, 04:31 PM	#24
Eddie H. Registered User Join Date: Mar 2001 Location: Paradise TX USA Posts: 1,200	My uncle was an aircraft mechanic during WW2. He told me stories of planes coming back aboard the carrier after a mission with cylinders melted down, or completely gone after they used up all their alcohol/water mixture in a heated dogfight with zeros. __________________ "Negative people always seem to have a problem for every solution"

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