If the pistons become unedible to a point the head and sealing area should come under severe attack in the cylinder. But like a fat kid in a candy store I can't wait to touch, taste and feel this next step of the addiction.
Steel Pistons?
- Thread starter McRat
- Start date
Steel pistons will be a step backwards. IMO. More weight, More cost, More eventual problems elsewhere in the engine.
Aluminum pistons are fine, you just need to use the right materials and build according to what you are doing.
If aluminum was a issue in racing top fuel and every other form of racing would not use them. Our diesels dont see 25% of the stress a top fuel engine does. Not even close! Aluminum pistons are not the issue.
There are three reasons aluminum pistons wont work for you.
(1) Your builder is not qualified to properly build a engine with the correct parts combination.
(2) You or your tuner is not qualified to be writing tunes for a racing engine.
(3) Both of the above.
Aluminum pistons are fine, you just need to use the right materials and build according to what you are doing.
If aluminum was a issue in racing top fuel and every other form of racing would not use them. Our diesels dont see 25% of the stress a top fuel engine does. Not even close! Aluminum pistons are not the issue.
There are three reasons aluminum pistons wont work for you.
(1) Your builder is not qualified to properly build a engine with the correct parts combination.
(2) You or your tuner is not qualified to be writing tunes for a racing engine.
(3) Both of the above.
First off Wade I really dont dislike you, I think the truck is cool and watch closely of the results of the parts you are trying, but I get tired of the rolling sales pitch................................. and the "I am all knowing" mentality when you have less passes on a dmax them most members on this site , I am not saying the forged will not be up to the task as I am just barely going forged in my truck and plan to find out just how strong they are , but how can you honestly state what you have above with your VERY limited experience in the dmax game, that you have never even PERSONALLY pushed stock , or modified Dmax pistons to there limit as others in this thread have , also on the tuning statement your not even the tuner of your own truck ................
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I dont understand why you keep refering out diesel motors to top fuel dragsters? We dont use their fuel, we dont use spark plugs, we dont rev that high, we dont run their blocks. Of course our motor wont see what those see, they are in a completely different league. If they are so great at handling stress, why cant we just run diesel in those motors, plug the spark plug hole up and run it? Cause u cant
I was thinking the exact same thing...I was hoping someone with a little more knowledge than me would speak up.
There's no way the two even compare.
For someone that DD's a bunch and can afford them. I think this will be the way to go! Wade, like stated above. Not even close to comparing a all out aftermarket block from the pan up. Fuel,internal spark, lighter, doesn't matter if it lasts over one pass, you don't tune, Hell come to think of it you don't race but only about 5 times a year.....All yea and if you don't race 1/8th mile your not shit anyways right!!!!!!
Yea yea top fuel dragsters... I'd love to pull and rebuild my built motor after every few passes!!! Not that I really drag race anyways. But seriously, nobody's trying to daily drive top fuel dragsters.
Did you not read what Guy just said about the weight?
No sale pitches, just my opinion, i truely feel this way about the situation. I have built several d-max engines and supplied parts for several powerful d-max engines, i have a good idea what power they can make andn the parts requirered to accomplish this feat. I have been building CR cummins since 2004 and have been first to market with several new parts in the d-max and cummins arena, my engines/parts work well. But thats not the point here, i think that 90% of the guys here miss the boat by useing the wrong piston designs and materials for there applications, and also while i dont tune my personal race truck, i do tune all the cummins i build, true i dont tune d-maxes, but i feel it is a vital part of the equation, to dissagree with what i stated is incorrect, if you really think about it, thats the bottom line. I wasent pointing fingers at any one agian , just stating what i know to be true.
Because top fuel engines creat more cylinder pressure and heat in there engine than anything else that is used in racing today! If you going to have a roll model this is a good choice.
It is a good comparison when talking pistons and materials and weight, again just another opinion of mine, i've based this idea on several of my latest builds and they work very well.
Building a d-max the way everyone else tells you to do it limits what you can do with it, and your stuck with what everyone else has.....and you end up with the same failures and exspensive limitations.
Top fuel see's cylinder psi 's that avg around 12-16,000 psi
Our racing d-max and cummins see avg of 3-5,000 psi
Big difference! Again looking at a bigger platform IMO will lead you in a better direction, For strength, realiability, and peformance.
I like to be different and build stuff no one else has. Thinking outside the box, thats my motto. Why should diesel engine building be any different.
Cmon Wade you dont really believe your own bs do you.
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i can and have backed up every claim i make. Steel pistons dont work in the cummins any better why would they work in a d-max any better....Sure they dont melt as often, but the rob about 50-60 HP and cost alot more, and there rings wear out faster, and there heavyer.........Just sayin, there not for me, you can have at 'em. To me there just a bandaid for a bad build combo or tune up.
Why does Audi use them? Why is Mahle pursuing it?
Wade, do you even have 100 passes on your car? A "pass" is a quarter mile. An 1/8th is a warmup.
The reason three reasons why you run 1/8th:
1) Your lack of driving talent makes is difficult to find the turnouts if they aren't visible from the start line.
2) Your mommy won't let you go too far from home.
3) You lack a Y chromosome.
Hey Wade, show us a datalog where you are running 7,000 rpm like you claim to be. You CAN back up your claims, right?
Pat never said i was running that high, i said the engine was built for it. at this point im limited to the efi software and nothing else. i run between 5600 and 5800 on avg, have hit 6000 when we first started, but since have not repeated that.
Show us 5600 then.
I posted a 5250rpm pass log years ago at a national event.
Surely you can beat that. (not idling, let's see it shift at 5000+.)