how much timing does a 24valve have

[scott2001]

On a 12 valve you can adjust timing to what ever you want, but the 24 valves you just put a programmer or box in, my question what is the factory timing on a 24 valve and just how much does a comp at to this. Two things one there are some injector pumps out there that is suppose to have more then factory timing like the mileage one cant remember the company but its suppose to have more timing then a stock one from cummings. Second is if someone know just how much timing a comp and say a smarty added to the factory timing of a 24 vavle it might be possible to run them both stacked. This may have been thought of before i got into diesels and beat to death.

 

[cummins724]

On a 12 valve you can adjust timing to what ever you want, but the 24 valves you just put a programmer or box in, my question what is the factory timing on a 24 valve and just how much does a comp at to this. Two things one there are some injector pumps out there that is suppose to have more then factory timing like the mileage one cant remember the company but its suppose to have more timing then a stock one from cummings. Second is if someone know just how much timing a comp and say a smarty added to the factory timing of a 24 vavle it might be possible to run them both stacked. This may have been thought of before i got into diesels and beat to death.

:hehe: I've asked that question on forums before. I got nowhere with it because none of the manufacturers will give that kind of info out. I have run Smarty sw3 timing 4 stacked with ADR with timing at 10*. My engine revved out over 4k rpm, but when I let out the fuel, the engine sounded like a 3rd gen returning back to idle. It slowly came back after holding itself at 4k for a second. Scared the sharts out of me.

 

[scott2001]

have you tried any other setting with that stack

 

[Ph4tty]

You can get that comp upgraded to a drag which adds some more timing. Just the old smarty fuel saver program added more timing than I want to run, too click-clackety for my tastes.

 

[cummins724]

have you tried any other setting with that stack

Oh yeah, tried them all. I even tried ADR zero timing, Smarty sw3 timing 4. This setting tows well, nice & cool, but very smokey.

 

[Phily 911]

my question what is the factory timing on a 24 valve

Probably why you aren't getting any answers is because it varies with temp, RPM and engine type. I've never got a straight answer from this either.

 

[scott2001]

i guessed it by now had to be tried in every way possible,

 

[Rattlin_Ram]

You can get that comp upgraded to a drag which adds some more timing. Just the old smarty fuel saver program added more timing than I want to run, too click-clackety for my tastes.

Drag comp doesn't add any more timing than a regular comp just fuels out to 3200 rpms instead of 2700 or 2800 whatever the regular defuel is...

 

[01smoker]

Drag comp doesn't add any more timing than a regular comp just fuels out to 3200 rpms instead of 2700 or 2800 whatever the regular defuel is...

The hot comp or "drag comp" does more than just fuel to 3200rpm. It bumps the hp up by 40-60hp. Maybe the old drag comp just fueled higher but the newest version, 11.8 i believe, adds hp too. Believe me, there is a big difference.

 

[lightsOUT]

I don't think a specific value can be put the timing because (like said before) it is dynamic. Meaning it is constantly changing based upon throttle position, boost, temperature.... So on, and so on.

 

[Phily 911]

I don't think a specific value can be put the timing because (like said before) it is dynamic. Meaning it is constantly changing based upon throttle position, boost, temperature.... So on, and so on.

So from a fuel mileage stand point, can better mileage be achieved with the P7100 since the VP44 is so fluid? I know that's kind of a poorly worded question.

 

[FireMed]

So from a fuel mileage stand point, can better mileage be achieved with the P7100 since the VP44 is so fluid? I know that's kind of a poorly worded question.

I would say no, P-pump would be a set timming. vp would be (fluid) since it can adjust with the +/- of the movement of the gas (fuel) pedal.

Say your going up a steep hill. Might need more timming to get the turbo, tranny (upshift/downshift), temp and more im sure to work sooner and optimize the mpg's. Where as your stuck with one setting on the p-pump.

 

[BgBlDodge]

The hot comp or "drag comp" does more than just fuel to 3200rpm. It bumps the hp up by 40-60hp. Maybe the old drag comp just fueled higher but the newest version, 11.8 i believe, adds hp too. Believe me, there is a big difference.

Wanna see the dyno sheet proving otherwise? Same power curve and peak numbers as a regular comp until 2800 in which case the drag comp holds out to 3200 and makes 40hp more than the regular comp. Got the sheets from an SO and can get em for an HO truck. Both are 01.5 trucks running the same comps. People have been saying that the drag comp adds more power for years but every time they do a back to back they find out otherwise.

 

[Timbeaux]

Wanna see the dyno sheet proving otherwise? Same power curve and peak numbers as a regular comp until 2800 in which case the drag comp holds out to 3200 and makes 40hp more than the regular comp. Got the sheets from an SO and can get em for an HO truck. Both are 01.5 trucks running the same comps. People have been saying that the drag comp adds more power for years but every time they do a back to back they find out otherwise.

BAM!!!!!

 

[Mike D]

Wanna see the dyno sheet proving otherwise? Same power curve and peak numbers as a regular comp until 2800 in which case the drag comp holds out to 3200 and makes 40hp more than the regular comp. Got the sheets from an SO and can get em for an HO truck. Both are 01.5 trucks running the same comps. People have been saying that the drag comp adds more power for years but every time they do a back to back they find out otherwise.

Post them up anyway, Tyler.

 

[nrose07]

Horesepower = torque X RPM divided by 5252. If it revs higher it makes more, the drag comp/hot unlock makes more horsepower, after 2800.

 

[01smoker]

Wanna see the dyno sheet proving otherwise? Same power curve and peak numbers as a regular comp until 2800 in which case the drag comp holds out to 3200 and makes 40hp more than the regular comp. Got the sheets from an SO and can get em for an HO truck. Both are 01.5 trucks running the same comps. People have been saying that the drag comp adds more power for years but every time they do a back to back they find out otherwise.

Before you go to posting dyno sheets, give me the version number on the sticker of your drag comp. How long ago did you have your comp upgraded? Im curious to see if their is different versions of the drag comp. Maybe they have a newer version out. My buddies truck is version 11.8. Even below 2800rpm, it feels much stronger.

And Im telling you right now, I know what more power feels like. I can tell his truck is fueling harder because it smokes a heck of alot more and he can rev his truck and blow out much more smoke than with the regular comp.

 

[GOT-Torque]

Weston posted the upper range, the lower end was around 5 or 6 degrees. It's dynamic and changes based upon a handful of parameters...

 

[IKNOWEVERYTHING]

Put a timing light on your truck an see what you get.........lol


IKE

 

[BgBlDodge]

Before you go to posting dyno sheets, give me the version number on the sticker of your drag comp. How long ago did you have your comp upgraded? Im curious to see if their is different versions of the drag comp. Maybe they have a newer version out. My buddies truck is version 11.8. Even below 2800rpm, it feels much stronger.

And Im telling you right now, I know what more power feels like. I can tell his truck is fueling harder because it smokes a heck of alot more and he can rev his truck and blow out much more smoke than with the regular comp.

It was an older version. I'll have to call and get the one for the drag comp cause I sold my comp years ago. And blowing more smoke out the pipe doesn't mean anything. Go get on a dyno and test a regular comp vs. a drag comp back to back. If I'm wrong I'm wrong and I'd like to be proven wrong. But I've heard for years of the drag comp fueling harder and making more peak power but either A no one has the sheets to prove it or B they get on the dyno and find out otherwise.

Mike D, I'll try and get them up by this weekend.