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Ha HAH! Thanks, Rod! I'll be checking the MSDS of course, but cut 50% with H2O it shouldn't be terribly bad I don't suppose. Too bad that with a chemical exposure one often doesn't find out until too late! I had no idea that day as I worked that this was my last job and that I would end up 100%...

There are ways to have your cake and eat it too. This is a relatively low rpm power curve so you can take advantage of that. Sounds like torque will be your best friend compared to horsepower. You might consider a cam with the highest available lift yet with short duration/overlap. Use a...

I'm no expert on any of this but: Wouldn't you be better off to never shutoff the fuel 'Main'? Instead open an additional bypass to the second filter when rough seas are encountered? No filtration loss, no chance of defueling, and just an extra failsafe measure to insure full fuel flow, properly...

"Timing has an awful lot to do with the outcome of a rain dance." Ha hah! Can I quote you, that's great?! MOST interesting on the methanol fibers. I have never seen a single mention of that before. This could explain why many guys complain, "Hey, I installed W/M and it seemed like it worked...

Thanks, jblaine! As the research deepens the picture actually becomes clearer. One must be careful to take the upgrades in the proper order it seems. Too much fuel with too little compressor and exhaust means high EGT's. So, I figure I'll do my turbo compressor [inducer] upgrade first, then...

Yes, good point. From what I understand the water itself may slightly increase power, plus allowing for more aggresive fueling from the injector pump and injectors. If I used methanol in dilution it would most likely be used for 'play' purposes for those times that we boys will be boys. I have...

Thanks for the advice, 22800. That's exactly what I intend to do. My truck is a daily driver but that may turn into months at a time of hauling an RV around. Just as you suggest, I need power and EGT reduction. I've located the correct pump at an affordable price, plus the appropriate injector...

Yes! I once attended a race for Unlimited Hydroplanes and I don't think I've recovered yet 30 years later hah! That noise echoing off the waters is beyond description. Merlin's are truly a work of mechanical art with few others that even come close.

Oh, the fascinations in these mechanical things! I hope in my travels to hear at least one of each. I love the sound of a big aircraft radial, too. Funny how some engines are so impressive for the remarkable quiet of their subdued power while another thrills at it's peak power curve. I suppose...

Hi all! I started to go through the replies to click the button to thank people for their replies. I realize now that every single reply has valuable information and has contributed to my understanding. So, I stopped adding stars and just want to thank you ALL for your help! Every contribution...

Thanks, r2800, for your reply. I believe I may have discovered the proper damper but need to check with Cummins for part number cross reference. There is an elastometric damper that is described as correct for both 4B and 6B, but of course that doesn't mean the seller fully understands the...

Well thanks! I really like this 'little' engine at present displacement and have no complaints. For what all it can do as-is I can't see it being worth the resources to bother stroking it. Continually impressed with the power curve and MILEAGE! Hard to beat in many respects. Thanks!

Thanks, Tmoose. I live up in the sticks so about the most hi-tech stuff around is the town's 2 traffic lights. I might be able to find those services down in the valley so I'll check next time I go. I'll look into the sound card/signal processing hardware and see what comes up. Thanks again.

Thanks,Greg, and you may be right. Problem is I just can't afford that at this point. The conversion to 4BT included swapping out and upgrading the entire drivetrain, running gear/suspension, steering, brakes and rewiring from bumper to bumper etc. and that ate up the whole pie. I located a new...

Thanks, Fabrico, I've been considering just that. There is finally some competition in the aftermarket visous units so some are quite reasonably priced. It shouldn't take rocket science to adapt one, and if it does I can always ask here on this forum ha haha! Could solve all the problems. I...

That's a ridiculous idea, ISZ! I like it of course. Something similar crossed my mind when I went to those links you posted. I am rather surprised that there aren't more folks pressing the limits on the little 4BT to discover its true power potential. Seeing 6BT running at 800 HP and about...

Good question, evelrod, bad answer: NOPE! I hope to adjust the valves tomorrow to eliminate that as a possibility but doubt that's it. Injectors seem to be okay from my limited knowledge. Loosening any one causes roughness, smooths out when tightened. It has the shake, but there is a distinct...

A 4BT STROKER!??!! Oh, man, that's got to be one stout little engine. Now I'll have to start filling the piggy again while I search out a crank! Thanks much for the links, I'll study up on that engine. I'm beginning to think that part of my vibration problem is from use of a year 2000 6BT...

Well thanks for some very good information. I haven't heard of the 4.5L 4BT but I'm now going to do some searching for info. I'm currently using the 6BT trans output yoke/damper behind transmission, with 2000 6BT flywheel, no dual mass. It's possible that there was a harmonic damper available...

Man, you hit the nail on the head RE: exhaust! Couldn't figure it out at first and then found the rigid mount exhaust section, even with quality flex on each size, was doing its harmonics thing throughout the truck. Big difference when changed. I believe I used too hard of engine isolators just...