Modified camshaft sensor?
MikeyB
You will want to open up the dowel pin hole on its counterclockwise side when facing the engine. That will allow you to advance the tone wheel in the clockwise direction, which is the same direction as how the engine turns.
To say to open it up on the left side is ambiguous as it could be completely different if the dowel hole is viewed at 12:00 or at 6:00. I just want to make sure its done right at your end......
You will want to open up the dowel pin hole on its counterclockwise side when facing the engine. That will allow you to advance the tone wheel in the clockwise direction, which is the same direction as how the engine turns.
To say to open it up on the left side is ambiguous as it could be completely different if the dowel hole is viewed at 12:00 or at 6:00. I just want to make sure its done right at your end......
I got so excited reading through this thread that I went ahead and ordered one.....will report back once it's installed.
I still have a big smile on my face every time I drive it, I guess I'll have to have my ears relocated so I can smile even bigger
I still have a big smile on my face every time I drive it, I guess I'll have to have my ears relocated so I can smile even bigger
Registered User
Joined: Sep 2004
Posts: 1,039
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From: somewhere in northwestern ohio....Mansfield, Oh
Just got back from North Carolina Installed sensor the day before I left and filled up and zeroed the overhead. The last time I went down,one month ago with my son taking him to to Mars Hill college , when I got off the exit my overhead said 9 miles till empty,this time I had just under 1/25 of a tank and the over head said 160 miles till empty and 598.8 miles. I topped off with 30 gallon for just under 20 mpg the best this truck has ever done. I took 77 down and came home 75 stoping at Cunberland Falls state park ,I kept the rpms under 1800 on the way down but got in a hurry on the way home and hit 80 a lot. I check MPG on the home trip and got 17.8 still better than I had been seeing. The sensor helped a lot, I would say close to 3 MPG for me. When I installed it I got know rattle and wonder if I can go a little more I may try 1% with the ring bye shaving dowel pin , don't know yet.Ok since this helped so much what do you think about changing cam timing some? it is my thinking this would help even more than crank timing for MPG. Someone smarter than me will need to jump in on how much to degree the cam. My old 91 got 24 mpg and I would think with the computor we should be able to come close to that even with the extra weight.
John,
That is some good news. I wouldn't try anymore than 2 degrees on the crank without somehow indexing the cam.
Hopefully in the near future Quadzilla will have a pure timing box that's adjustable. Figure that is the easiest way without having to take the front of the engine off.
MikeyB
That is some good news. I wouldn't try anymore than 2 degrees on the crank without somehow indexing the cam.
Hopefully in the near future Quadzilla will have a pure timing box that's adjustable. Figure that is the easiest way without having to take the front of the engine off.
MikeyB
Originally posted by SoCal-305
MikeyB
You will want to open up the dowel pin hole on its counterclockwise side when facing the engine. That will allow you to advance the tone wheel in the clockwise direction, which is the same direction as how the engine turns.
To say to open it up on the left side is ambiguous as it could be completely different if the dowel hole is viewed at 12:00 or at 6:00. I just want to make sure its done right at your end......
MikeyB
You will want to open up the dowel pin hole on its counterclockwise side when facing the engine. That will allow you to advance the tone wheel in the clockwise direction, which is the same direction as how the engine turns.
To say to open it up on the left side is ambiguous as it could be completely different if the dowel hole is viewed at 12:00 or at 6:00. I just want to make sure its done right at your end......
Thanks
T&T,
That would be just the opposite, cutting the slot clockwise would retard the engine.
Dodge Demon,
Yes, the mod is for the 3rd gen models. Don't think this will work on the 2nd gen. Might want to post on the 2nd gen forum for the answer.
MikeyB
That would be just the opposite, cutting the slot clockwise would retard the engine.
Dodge Demon,
Yes, the mod is for the 3rd gen models. Don't think this will work on the 2nd gen. Might want to post on the 2nd gen forum for the answer.
MikeyB
Well I have had the sensor installed for about 1 week so far. I will be topping off my tank tomorrow, but to be completely honest I don't see any MPG gain from where the fuel gauge is to where my trip OD reads (will know for sure tomorrow).
Also, I know the power curve is better than before but I really suspect that I lost some performance when I crank up my Ramifier now. I can't make a big puff of black smoke like I use to when jumping on it (box turned up) and I am not sure the Ramifer isn't making the timing a little to much (even though TS told me is wasn't an issue).
The only benefit I have gotten from it so far is the WOT / Full power EGT's are a little lower then before. Before I could easily hit 1500 (but chicken out at 1400 and climbing hard), now I think it would probably hit 1400 but not much over that.
The idle sounds a little better (more of a diesel rattle), and I don't have that bubbling exhaust sound at cruise speeds like I had before, now it is a constant sound (sounds better)....
So to sum things up (from my experience): I didn't gain much and I swapped in a BHAF at the same time, so I can't say the sensor really did anything for the EGT's either. Maybe I need to go reposition it and see if things improve.
Also, I know the power curve is better than before but I really suspect that I lost some performance when I crank up my Ramifier now. I can't make a big puff of black smoke like I use to when jumping on it (box turned up) and I am not sure the Ramifer isn't making the timing a little to much (even though TS told me is wasn't an issue).
The only benefit I have gotten from it so far is the WOT / Full power EGT's are a little lower then before. Before I could easily hit 1500 (but chicken out at 1400 and climbing hard), now I think it would probably hit 1400 but not much over that.
The idle sounds a little better (more of a diesel rattle), and I don't have that bubbling exhaust sound at cruise speeds like I had before, now it is a constant sound (sounds better)....
So to sum things up (from my experience): I didn't gain much and I swapped in a BHAF at the same time, so I can't say the sensor really did anything for the EGT's either. Maybe I need to go reposition it and see if things improve.
Registered User
Joined: Sep 2004
Posts: 1,039
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From: somewhere in northwestern ohio....Mansfield, Oh
Mickey,
The Quidziilla box would be adjusting injection and crank timing , not a bad idea but I still think adjusting the valve train timing should help MPG and if a man did a cam change, but I don't know what is avalable. Also I heard Dodge said that the 06 will be getting a 20% increase in MPG but I have not heard how , it would not surprise me if it has a lot to do with timing.
The Quidziilla box would be adjusting injection and crank timing , not a bad idea but I still think adjusting the valve train timing should help MPG and if a man did a cam change, but I don't know what is avalable. Also I heard Dodge said that the 06 will be getting a 20% increase in MPG but I have not heard how , it would not surprise me if it has a lot to do with timing.
Asher,
I heard there could be issues with Rokktech sensor and boxes that alter the timing. I would say do one or the other but not both.
John,
If you can find a Cummins specialist that would do it they could re-index the camshaft with a offset key for the sprocket.
MikeyB
I heard there could be issues with Rokktech sensor and boxes that alter the timing. I would say do one or the other but not both.
John,
If you can find a Cummins specialist that would do it they could re-index the camshaft with a offset key for the sprocket.
MikeyB
Well I just filled up and here are the results:
My normal city / highway weekly driving:
old mileage 16-16.8 MPG
new mileage 15.8 MPG....
Tomorrow I am going to loosen up the sensor and back it off a tiny bit and see if it makes any difference.
I agree that you should not do this sensor with a timing box, and that is why I called TS performance and asked this question (before I purchased the sensor). They said "not a problem" so more and more I am thinking they just ramp up the fuel pressure and really don't play with the timing hardly at all (if any). Because the response I got would not make sense any other way
Anyway I rarely even turn the **** from stock, unless I get a stop light challenge.
So if this 2 degrees timing is such a good thing (as everyone says), then why aren't the box makers advancing the timing from the get go, even on the stock settings to get the increased mileage
????
I am wondering if the tolerances in the gears, sensor mount, crank ring, etc. don't have to much of a varible in them making the timing all over the charts and trucks not responding consistantly.... If would make a good excuse for why some trucks put don't more power stock then others....
Either way, I don't know but these are my results... I am still going to mess with it a little and see if things improve, but I am not one to say (just because I spent the money) "that this was an improvement for me"...
My normal city / highway weekly driving:
old mileage 16-16.8 MPG
new mileage 15.8 MPG....
Tomorrow I am going to loosen up the sensor and back it off a tiny bit and see if it makes any difference.
I agree that you should not do this sensor with a timing box, and that is why I called TS performance and asked this question (before I purchased the sensor). They said "not a problem" so more and more I am thinking they just ramp up the fuel pressure and really don't play with the timing hardly at all (if any). Because the response I got would not make sense any other way
Anyway I rarely even turn the **** from stock, unless I get a stop light challenge.
So if this 2 degrees timing is such a good thing (as everyone says), then why aren't the box makers advancing the timing from the get go, even on the stock settings to get the increased mileage
????I am wondering if the tolerances in the gears, sensor mount, crank ring, etc. don't have to much of a varible in them making the timing all over the charts and trucks not responding consistantly.... If would make a good excuse for why some trucks put don't more power stock then others....
Either way, I don't know but these are my results... I am still going to mess with it a little and see if things improve, but I am not one to say (just because I spent the money) "that this was an improvement for me"...
Asher,
If you're seeing at least 100 degree drop in EGTs the sensor is working.
The Ramifier is pressure only. No more black smoke? I would think the advance timing is burning the extra fuel more efficiently. A loss of power? Maybe because the surge at around 2k rpms when the turbo spools up to full speed is now somewhat masked with the extra low end grunt. The power feels more linear now. At least on my truck.
To many factors when it comes to fuel economy. I would say run at least three tanks of fuel for an average and see which way it goes.
I just filled up my truck today and put about 100 miles on it. Can't tell much since the fuel gauge is still on full.
MikeyB
If you're seeing at least 100 degree drop in EGTs the sensor is working.
The Ramifier is pressure only. No more black smoke? I would think the advance timing is burning the extra fuel more efficiently. A loss of power? Maybe because the surge at around 2k rpms when the turbo spools up to full speed is now somewhat masked with the extra low end grunt. The power feels more linear now. At least on my truck.
To many factors when it comes to fuel economy. I would say run at least three tanks of fuel for an average and see which way it goes.
I just filled up my truck today and put about 100 miles on it. Can't tell much since the fuel gauge is still on full.
MikeyB


