On Board Air

[Duck]

I think Kilby misunderstood Duck's question. Kilby he was asking what the power loss is when the clutch is disengaged on the compressor. And of course, the answer is nearly nothing. The same as your air conditioner when it's off.

JonR

Ya, that was my question. FINALLY! Somebody that understands me! :-laf



... but... I've always been under the impression that any time you add anything to the belt system, it brings a non-trivial amount of load to the engine at all times.



On my old 79 Ford, the A/C compressor seized and I didn't have enough $$$ to fix it at the time (my very first vehicle, you know how it is). I had to remove the belt until I replaced the compressor, cuz I didn't really feel like listening to the belt scream all the time



The next time I drove it, after the belt was removed, WOW. It was noticeably more "peppy". Tires screached easier, got up to speed faster, etc.



I replaced the compressor and... back to normal.



Now I know these diesels have more power than my old 400ci. And, I'll probably buy Kilby's set up anyway, cuz the 12V compressor doesn't cut it anymore. But I'm generally not for "anything" that constantly robs my driveline of power. I mean, technically, just installing a longer belt is going to take a little power away. Might be negligible... might not...



Please, somebody say something to make me feel better about my inevitable purchase

 

[Duck]

As an aside, this thread has generated 5 pages and counting of replies.

And the product doesn't even exist yet! :-laf



Come on Kilby, you're killin us Oo.

 

[rbattelle]

Please, somebody say something to make me feel better about my inevitable purchase

If you really want to feel better, when you get your compressor just take a few moments to take a torque reading at the compressor wheel with the clutch disengaged before installing it on your truck. I'd bet it will be much less than 1 in-lb.



Of course, that doesn't take into account angular momentum when it's actually spinning with the engine, but I promise you the torque/power required to spin that little wheel is so insignificant as to be unmeasureable either by your arse or a dyno. Methinks your amazing extra power from removing your A/C compressor on that old Ford was your imagination.

 

[tgbol]

Duck

I have the Kilby set up on a 24v. I haven't noticed any loss in power when it is running. I think because the drive pulley on the alternator is about 1/3 of the clutch pulley the loss is very minimal. I have my set up wired so that the compressor will kick on any time the engine is running. I don't feel it cycle like I do the A/C. I have a switch that when I am working with air tools the engine will speed up to shorten the recovery time. When I am filling up tires the compressor will kick cycle a couple of time. It has been one of the best things I have done to the truck.

 

[David Muench]

Just another bump, my 2003 needs a York. My front air suspension is a PITA to have to top off manually every couple months.

 

[Kilby]

We're getting there guys! I'm sorry it's taken so long but we've been extremely busy with other projects and we've been working on this one as we have time.



As it stands right now, we're waiting for the brackets to come in from the laser cutters. Once we get them, we need to jig and weld them then send them out for plating. All of the hardware, belts and pulleys are on order and should be in shortly. The new inner cooler tubes are already in and ready to go. We have a show coming up in a couple of weeks that we *have* to prepare for so we'll be fitting all this in as we can. Shouldn't be long now... . (famous last words)



Somewhere between '03 and '04, Cummins or D. C. decided to change the fan shroud. It's now mounted to the engine and there's a steel bracket in the way. We're working on a replacement to fit around the compressors but until then, the '04 guys with this bracket will have to wait. Or make their own replacement bracket. Sorry!

 

[David Muench]

That's great news! Thanks for the update.

 

[rbattelle]

Been a couple months... what's the latest status?

 

[Oliver88]

Wouldn't mind having one of those for my 99. How difficult is the install? How hard is it to plumb in an air tank?

Thanks,

Greg

 

[thepipe1]

TTT

Anything new on this? Come on, Kilby!!!!!!!!!!!!!!

 

[rbattelle]

I keep getting into situations where I think "boy do I wish I had onboard air... ".

 

[thejeepdude]

I keep getting into situations where I think "boy do I wish I had onboard air... ".

ME TOO! - like right now... stuck in the sierras in a snowstorm with my enclosed car hauler with no chains. It would be nice to air down for the icy part, and be able to air up when the roads get dry on the way down the hill. Also, breaking unplowed roads would be a lot nicer if I could drop the psi down really low in the deeper soft stuff. C'mon Kilby! You're gonna need a beta tester for an '05 aren't you?

 

[MYamamoto]

I think a bunch of people were really hoping to see something around Christmas or New Years, would have been a wonderful gift. :-laf What is the latest word??? Are we getting anywhere close to a release date for the 03's???

 

[rbattelle]

I think Kilby's hiding from us...



-Ryan

 

[Kilby]

Not hiding, just not ready to talk yet.

Mark, I've been meaning to call you. Instead of you waiting for me to call (could be another couple of weeks at this rate), why don't you call me next week? Btw, no one would have been happier than myself to see a few of these go out for Christmas.

I think Kilby's hiding from us...



-Ryan

 

[mgonske]

Btw, no one would have been happier than myself to see a few of these go out for Christmas.

I'd be happy to see one brought along to Moab at Easter (hint, hint... )

 

[Kilby]

I'm sure I'll be up there but I doubt I'll have a booth on display. If one of my dealers does, I'll be sure to load them up with product.

 

[Po' Riggity]

Just an update guys, as I work for Kilby Ent. They test fit the compressor bracket on my 04. 5 CTD600, and made a prototype bracket for the fan shroud to go around the york compressor. Also took pictures for the install instructions. . Just letting you know, its closer!

Scott

 

[JeepinDoug]

I thought you worked for FedEx.

I hope these get done fairly soon, I'm ready to drop for an electric.

 

[Po' Riggity]

Doug, I did work for Fedex, but now Im back doing what I loved doing... 4 wheelin stuff Don't drop the coin for the electric just yet. . give it a bit before you do. I think you will definetly be happy you waited.

Scott