Water Injection

RedPuller said:
That's what I figured being they sell mostly street performance products.

I guess then another question I have would be how much water would a typical Super Stock/Mod puller use during a hook since these smaller systems can't pump out enough to do any good??

Joe
Click to expand...

Alot 1/2 gallon +
 
Yeah it stated Super/Mod class that's what i was refering to.
 
RyanB said:
Since we are on the topic of water injection...has anyone ever experimented with water pre turbo (right into the atmospheric inducer)??? I have seen this done on some of the single turbo Tractor classes that alow water and was just curious as to how it worked and what it actually did.

RyanB
Click to expand...


Yes that works,(I have done it) I was told by an old timer that the meth is what eats the wheel up, just water before the turbo.
 
I am running 6-7 nozzels and with the pump set at 600psi and my average pull being 305 feet last season my average amount of water was between 1/3rd to 1/2 a gallon with only one pull on clay where I went 327feet just over 1/2 a gallon.

One reason I am thinking of going with a mechanical setup and the reason I am sure the big guys run it is....if you lose power or battery its super easy to fry your engine if you lose the water. My last pull this year I had left my gauges on by accident on the way to the pull and had to boost the truck to get it going (14.5:1 compression takes a bit of cranking with my injectors) and although I let it run for a while I never thought much of it...Started the pull, things felt good untill I got into full throttle at 20 feet...still felt good but not quite right, at 75feet I started seeing a nice torch tip comming out of my hood stack...hit the switch for the water and it was on, let off the trottle (I run a full throttle switch) and hit it again and it came on and I finished the pull with the water but my EGT's were smoking for a little bit...landed up snuffing out the motor at the end and couldn't get it started untill it cooled back down...I almost guarantee I didn't have the voltage up when the water kicked in the first time and the way its setup I have to let off and then hit it again to start the pump back up (Im fixing that for next year) but with a full mechanical pump that would never have happened. I would much rather have the hydrolic steering fail than the water injection...and I think thats why you see all the big guys go that route.

Just a thought!

RyanB
 
After some more testing this weekend I am happy with the results and am ready to move on with this project.

For those of you that are interested would you rather have port or common point injection. Port injection would allow the tuning of each cylinder for temperature but is time consuming and costly. Common point injection would be a more cost effective system.

How many injectors would you be willing to run?

How complete would a kit need to be? For instance can the kit come with all the parts and you would need to be responsible for wire and hoses?
 
For an actual pulling setup I think that port injection is the only way to go! On my setup I don't have any nozzels in #1&#6 because I find that the EGT's are low enough from just the water cooling in the actual intake tubing its self (I have 3 nozzels spaced between the turbo's to the actual plenum). Also, #1 &6 are getting less air so the EGT's in those 2 cylinders are down right away. #2 & #5 in my setup (I have a custom twin ram intake) and I have my largest nozzels in those two ports because both those cylinders get the most air and the EGT's are the hottest. #3 & #4 have nozzels are are smaller than the ones in #2&5.

Here is my current setup for nozzels size wise.

.003 between the Charger's
.005 in the piping as close to the small charger discharge as I could
.005 in the piping 10" before the Y at my plenum manifold
.005 in #2 cylinder port
.003 in #3 port
.003 in #4 port
.005 in #5 port

This year I wasn't running Data on the truck so I don't know the actual temps for each cylinder but my egt's always around 1400 and never over 1450. Maybe someone like Scott could give us an idea of nozzel sizing and EGT's/cylinder seeing he is running Data if he cares to share the info. I will be running Data next year and I think it will only make me that much more competative with running the water and make the engine that much more reliable seeing I can actually tune it then.

RyanB
 
So would a high pressure 2 nozzle system be worth the money and effort in a 2.5 truck? Lets say it is, and I buy a Haisly electric system. What size nozzles should I run and where should I put them? This is going on a CR Cummins BTW. I plan on getting a Silver 62 charger, DDP 90hp sticks and all of the supporting components (studs, valvesprings, mod cp3, ect....)
 
kino_fab said:
So would a high pressure 2 nozzle system be worth the money and effort in a 2.5 truck? Lets say it is, and I buy a Haisly electric system. What size nozzles should I run and where should I put them? This is going on a CR Cummins BTW. I plan on getting a Silver 62 charger, DDP 90hp sticks and all of the supporting components (studs, valvesprings, mod cp3, ect....)
Click to expand...

Well the nice thing about a kit like haisleys is that it comes with a manifold that I think can branch off to 10 nozzels. The system only comes with one and you have to build off from there. I picked up the extra nozzels from them and then dealt with summit racing for all the stainless hoses..worked great. So basically if you get a system like there's and only run 2 for now you can have 3 or 4 by the next pull if you want with a little money and work!

RyanB
 
JerrodGlover said:
How many injectors would you be willing to run?

How complete would a kit need to be? For instance can the kit come with all the parts and you would need to be responsible for wire and hoses?
Click to expand...

Depends on the application, and/or HP level. A higher power 12v will need more water than a comparable CR or VP in my mind. Also, a sled puller will need more water than a racer...also, in my opinion.

I would try and make the kit expandable...so if a guy buys a kit to run a common injection point, later he can add more nozzles in the manifold for better cooling.

On the wiring and hoses...not all people have easy access to relays and wiring, or the knowledge to put them together. I can do it, but what about someone else!

I'm curious on these...I'll probably need some water!

Chris
 
My kit is different up to the manifold as it uses the gear driven pump, pressure regulator, and a simpson valve but Like Ryan said the the water manifold has enough ports availible for 10 nozzels. There is actully a fine filter it goes through before entering the manifold you can use hard lines like I curently have but then have to deal with all the ferrel fittings etc... or you can use the Aeroquip stainless steel braided TFE hose and fittings which I suspect Ryan is using, much easier to route. I plan on doing this when fiunds permit. Chris set this truck up to run one nozzel in each cyclinder two between stages and two in the intake tubing before the air enters the intake plenum. one of the nozzels between stages and one in the intake tubing are run off the high / low selinoids. as mentioned the water nozzles are only made in two sizes .03 (16 thousandths) and .05 (22 thousandths) the .05 comes with spinners if you pull it apart you will see what I mean. If you get get a small drill index and a pin vise to drill out the water the nozzles you can drill them out 5,000 at a time which is roughly between 100 and 200 degrees in EGT drop. So you start with a .03 check temps and drill out accordingly.

My readings have been high all year as we feel the track conditions weren't allowing me to load the motor enough to get the boost to were it would allow the water to come on fully.

BBD
 
You must log in or register to reply here.
Back
Top