Competition Who says 24v's cant rev?

[KatDiesel]

Something comical I came across today, while looking at a recent dyno sheet, it states I have 433. 1 hp @ 3600RPM. Another one says 438. 0 @3400. One goes to 3700rpm.



Just something I found interesting while looking at the detail sheets.

 

[J.R. Adkins]

4400

 

[Morepower]

I checked a few months ago and someone was working on another black box to go to 3400+ but it wasn't done yet. Another person was changing out the whole ECM. Has any one yet made available a plug n play system to exceed the 3,200 rev limiter?

I know people criticize the need, but it does make sense to shift during heavy towing to the next power band so not to fall on your face climbing a hill.

Who, What, Where, How? Inquiring minds want to know?

2001 24 Valve

 

[KatDiesel]

No new box. No wires snipped. Sorry I don't have any "tricks" to reveal.



Just finally looked at a detail sheet of a recent dyno.

 

[Snow man]

Kat,some 24V trucks rev higher than others, Mine will not go above 3550. It pulls hard to 3250 where it has 483hp. Ted Kolbys truck is like yours,it just screams,it pulls a good 100RPm higher than mine. His pulled hard past 3400. We compared dyno sheets,and the seat of pants feel was confirmed his truck just pulls higher. Gotta get mine flashed to that code now

 

[jwilliams3]

J. R.

I hope that Cam gear is bolted on!!!

If not it might become the heaviest Ninja star in the world!!:-laf :-laf



--Justin

 

[bbeatty]

reving 24vs

dear people; why do you need to rev to 4000? Hell, tese engines were not designed to do that! they are in line sixes made for torgue at about 1850. So why are all you people so stuck on rpm. My poor as 12v will make 1400 lbs pounds of torgue at this speed . so (yes i have the luk to put my engine on cummins dynos cat dynos, and gm dynos,) Ya smokes like hell but at 2300 i make 533 hp-with things thy say dont work well (thats my story and im sticken to it. ) have fun you guy woring about the big RPM! thanks for letting reply. Mr. bbeatty

 

[Snow man]

Im not stuck on RPM,mine shifts at 3000,1-3 and 3250 on the 3-4 shift. In the quest for maiximum performance, the abilty to carry the Hp higher inthe RPM ranges = faster acceration,and higher top speeds. Most of us are not running them continously at higher than 3000. The 12v's pull clean and hard to 3600 reliably with just valve springs and a GSK,thats all inwant out of my 24,strong power and no defuelling until 3500 or so.

 

[J.R. Adkins]

Wheel speed.

 

[KatDiesel]

Re: reving 24vs

Originally posted by bbeatty

dear people; why do you need to rev to 4000? Hell, tese engines were not designed to do that! they are in line sixes made for torgue at about 1850. So why are all you people so stuck on rpm. My poor as 12v will make 1400 lbs pounds of torgue at this speed . so (yes i have the luk to put my engine on cummins dynos cat dynos, and gm dynos,) Ya smokes like hell but at 2300 i make 533 hp-with things thy say dont work well (thats my story and im sticken to it. ) have fun you guy woring about the big RPM! thanks for letting reply. Mr. bbeatty

Why ? because its fun... . no other reason. I got a chuckle out of the fact is all. It was not done intentionally, I don't like seeing it go past 3400rpm, I run it to 3200rpm all the time. Everything I do in and on my truck is for fun, nothing more nothing less so I assure you I won't lose any sleep worrying about RPM. You say it wasn't designed to do that? Isn't that kind of hypocritical, I mean you say you have 500+hp was it designed to do that?

 

[CumminFast]

You make 533hp w/ a hx-35??? Is that rear wheel? I have a 12-valver, but when I get up into 3500 I can go faster smokeless unless I really romp it. Plus when I shift it puts at a good powerband w/ no lag.

 

[zjones]

bbeatty try shifting at 2300 rpm with 25k lbs. behind you, then try it at 3400 rpm. I was going to buy a NV5600 before I put the GSK in, now there is no reason to get a slower shifting, heaver trans.

 

[bbeatty]

RPMs are good

just a note: I have a governor spring kit,and can run it to 3300 rpms,But my theory is that a six in line has a greater stroke to bore ratio than a eight cyl engine! thus flame travel is less effective at high rpms. I am not saying that you should not do it GOOD h e double thooth picks ya were all pushing the limits Just a little engineering experiece, Some said hx 35 rear and suposed that the 14cm housing (being small was pushing it. ) ya but the housing flows like a 16cm. Yes i can peg the needle very easily,but it like the man said were not stock. Yes that is rear wheel horsepower,and i have paid the price three clutches, wont mention any name but they were reported as above 1000lbs pounds torgue clutches,so i must get a southbend,mccleod,are go to the pulling type. RPMs live forever BBEATTY Thanks

 

[DSteinel]

Try pulling a sled at 2300 rpm, doesn't work very well. I want at least 4000 rpm out of my 24 valve, any body know how?

 

[Roger rodbolt]

Me too!!

Originally posted by Steinel

Try pulling a sled at 2300 rpm, doesn't work very well. I want at least 4000 rpm out of my 24 valve, any body know how?

Anyone??

 

[HVAC]

RPM

I believe you have the ability to make more horsepower at high rpm. This is part of the theory behind the Scheid pulling truck I believe. I'm told the engine on an engine stand produces hella big numbers! Big rpm/lotsa fuel = BIG horsepower.



The other thing big rpm will do for you is drive turbos. I don't feel we 24v guys can run as large a turbo as the 12v guys for this reason. It's a simple matter of the volume of exhaust gasses being produced. The Scheid truck supposedly made over 190 psi of boost at Muncie.



Smoker tractors demonstrate both points I made above. They run at 6000 rpm and make 1800 hp with 150/200 psi of boost.



bbeatty, have you ever seen a sleeper white Ford diesel runnin'around in your neighborhhood? Have you ever raced him?

 

[Mopar-muscle]

when my trans was slipping it would shift to 3rd them the tach would hit 3500 :{

 

[MikeR]

The high rpm box has existed the whole time!



I have a TST Powermax Comp, and I use it for drag racing, so I had to have Mark reprogram it for high rpm before defueling. My dyno runs report that I make full power to 3400rpm before defueling.



bbeatty,

The reason some guys need that high rpm is for either drag racing or sled pulling. In my case, I have a 6spd, and I need that high rpm power or the truck falls on it's face while racing.

I'm not doing anything this truck and engine was ever 'designed' to do, and I don't care!



-Mike

 

[jwilliams3]

Mike,

I checked a recent dyno sheet and my Edge Drag Comp appears to be full fueling until 3400rpm, the drop in hp occurs right after 3400rpm.



I heard that Drag Comps defueled at 3100rpm, anyone know for sure?



--Justin