Rokktech Crank Sensor Installed...

[67guzzler]

Sign me up for your 'how to deal with unpleaant internet people' sessions



I much appreciate your good words and intentions however, I do believe you should offer your services first to the chap who lost his argument and started with the insults. I just emailed you another check so that you can help BB.



Yes, I let my 'goat get got', but I don't take guff off folks indefinitely.

Just having fun -- trying to lighten the mood. Don't mean to be doing it at your expense. No offense!

 

[corprimo]

We're about 7000 miles into our 7 month odyssey, with the Rokktech installed for the last 4000 miles. Pulling our 11,000 pound 5er, I'm noticing fuel mileage is improved. From Alaska to Portland, OR, we never got above 9 mpg. Since installing the Rokktech, we've been between 9 and 10. 5 mpg. Lots of variables - some touring without the trailer here and there, but milege is definitely improved. EGT doesn't seem much different - 1200-1250 when pulling hard in 5th gear. Temps might be down just a bit, certainly not any hotter than before.



Mileage always hand calculated...

 

[moparmarty]

I've had mine on about a week. Haven't checked mileage yet. I am pleased to say the Rokktech sensor has given the truck a noticeable increase in off idle response. It take less throttle to get the same amount of acceleration. I enjoyed my CTD before and now I enjoy it even more.



Easy installation. Very worthwhile investment. I would definitely recommend it.

 

[RMarkey]

I've read all 163 posts, took a while, but it sounds like it pretty much works for everyone. I've got issues with my CTD, the odd and kinda random knock, rough start and such, NTM the bad mpg. Anywho...



I run the Juice/attitude and usually run the PS add w/ cetane boost. Wondering, does that box advance the timing anyway, and if so, would the 2 deg along with the box and the higher cetane put me up a little too high? I occationally bump the Attitude up to 4 when I get next to some chump who thinks that a loud, lifted, 3/4 ton truck is only just that. Boy do I prove them wrong (not always though, sometimes it doesn't seem to give me 100% performance)

I just don't want to tear this thing up trying to get every last drop of power out of it, I'd like it to run well for a long time!



But if it would maybe fix the oddities and smooth it out it's gotta be better, if it's anything like a gasser, smoother is better! (and cheaper, and more powerful)

 

[WhiteSheep]

Chiming In

I did to Rokktech thing about three weeks ago. I've done some 4x4 trails (30 miles), city highway to work and back and towed nothing. So far the overhead (don't flame me ) says I am up about 1. 5 to 2. mpg . This is on top of the 1 mpg I got from the white smoke TSB. I can't complain about the mileage. It does sound a little more like a Diesel. As for power, who can tell when you start at 600 ftlb @ 1600 rpm. What I want to know is why it doesn't come this way from the factory. Noise or emissions? My bet is on the former.

 

[RGardner]

My bet is emissions. That is one of the biggest problems that we have in this country is that the EPA is leading us all around by the nose! Who know how many grades of gasoline and coming soon to a filling station near you ulsd! I don't know about the rest of the world but in the high plains we need the sulfur on the land.

 

[Elite1]

As promised in an earlier post, here is my update after towing the boat for a few tankfulls. I normally run Stanadyne PF and ran it on the 1st tank but not the second. The trailer/boat combo is 12,000 lbs and the route I towed on is one I have used often in the past.

- At light throttle the response is better and it "feels" like it is easier to gently get the rig moving.

- Full throttle response feels about the same both at low speeds and at interstate (65-70mph) speeds.

- Exhaust temp on the long climbs were slightly less (under 50 deg difference) and still stayed over 1300 deg (pre turbo) on long 2800 rpm 28 lb boost climbs.

- MPG's were within the norm for the trip coming in at 0. 5 mpg over average. I'd have to make the trip a few more times to verify the results. I normally see 8 mpg on this trip and saw 8. 8 mpg the 1st tank and 8. 3 the second.



Overall not the change I was hoping for but still well worth the $$ in the way the truck drives when not towing. BTW - fishing was excellent!!

So this sensor boosts power, increases fuel mileage & helps you catch more fish! Sign me up!!! :-laf

 

[Hokey]

I've read all 163 posts, took a while, but it sounds like it pretty much works for everyone. I've got issues with my CTD, the odd and kinda random knock, rough start and such, NTM the bad mpg. Anywho...



I run the Juice/attitude and usually run the PS add w/ cetane boost. Wondering, does that box advance the timing anyway, and if so, would the 2 deg along with the box and the higher cetane put me up a little too high? I occationally bump the Attitude up to 4 when I get next to some chump who thinks that a loud, lifted, 3/4 ton truck is only just that. Boy do I prove them wrong (not always though, sometimes it doesn't seem to give me 100% performance)

I just don't want to tear this thing up trying to get every last drop of power out of it, I'd like it to run well for a long time!



But if it would maybe fix the oddities and smooth it out it's gotta be better, if it's anything like a gasser, smoother is better! (and cheaper, and more powerful)

I use the hot version juice and the Rokkteck senser and run in #4 as a daily setting I have also used the #5 setting frequently I use a cetane booster absolutly no problems Hope this helps

 

[scottmcd]

Just ordered this morning, should see it by Tues/Wed, hope it fixes the p336 code I'm throwing every couple of days... Scott

 

[ilovetrains]

Would the Rokktech sensor be redundant for some one planning to add a Edge Juice or Van Aiken 3. 2 box? Since both those affect timing, and Rokktech warns that the combination may induce knock, is not better to save the 70 bucks from teh Rokktech and apply it to the box you already plan to buy?

 

[JCotte]

I guess that all depends on if you arewilling to say, I am my own warranty station or not... ... :-laf

 

[Matt400]

The VA C3. 2 doesn't do timing however the VA C3. 3 will and is not available just yet.

I think if you run a timing box, cetane improver and the sensor mod it may be too much timing. You will know when it pings.

 

[jwduke]

I have to agree on Big Bobs point, about using the overhead for figuring whether or not a increase in milage was noticed. My overhead hasn't been correct since day one.



It is great, that some of you have posted "hand calculated" milage figures, so this has put back into my mind, this is a bomb to do.



Thanks everyone for your "hard evidence" that this DOES work!

 

[TYCreek]

Sure a lot of disbelief in the ol OverHead mpg estimator ... well ok ... not perfect, and sure, nothing like keeping a running log of mpg as some of us do. Though, I'd like to see a log that proves any sensor correlation to accuracy affects. My guess, on limited data, is that the sensor doesn’t make a difference.



I do the double reset on mine at each fill-up and so far the farthest off was +0. 8. My last tank calculated 23. 4 and the overhead said 23. 6. The tank before was 20. 5 with the overhead reading 21. 1.



So, IME; the OH is not all that bad of a reference.



Can't imagine mpg getting better with some break-in? But cool by me if it does. Maybe I'll hit the 25 I got with my old turned up 94 auto with 3. 5? gears? Though this one certainly has more usable pulling power - stock off the lot!

 

[JCotte]

Sure a lot of disbelief in the ol OverHead mpg estimator ... well ok ... not perfect, and sure, nothing like keeping a running log of mpg as some of us do. Though, I'd like to see a log that proves any sensor correlation to accuracy affects. My guess, on limited data, is that the sensor doesn’t make a difference.



I do the double reset on mine at each fill-up and so far the farthest off was +0. 8. My last tank calculated 23. 4 and the overhead said 23. 6. The tank before was 20. 5 with the overhead reading 21. 1.



So, IME; the OH is not all that bad of a reference.



Can't imagine mpg getting better with some break-in? But cool by me if it does. Maybe I'll hit the 25 I got with my old turned up 94 auto with 3. 5? gears? Though this one certainly has more usable pulling power - stock off the lot!

TYCREEK

I see you are fairly new here but to stand here and knock numbers and want logs to prove parts is not a great way to start off when you are the one that wants something. There are a lot of members here that take there time to put information for others like yourself to use. To sit here and be so negative and want to dispute everyones claims about MPG increase with the ROKKTECH and about overheads. If you have issues with something there are people here that are glad to help you and the others out but don't come here and bash all the efforts that people in the group offer. Sorry about the RANT but posts like the one from TYCREEK do no one any good. We have told you our experiences so you can make a decision to purchase or not. If you chose to great and if you do not, enjoy your truck. :-{}

 

[hasselbach]

TYCREEK

I see you are fairly new here but to stand here and knock numbers and want logs to prove parts is not a great way to start off when you are the one that wants something. There are a lot of members here that take there time to put information for others like yourself to use. To sit here and be so negative and want to dispute everyones claims about MPG increase with the ROKKTECH and about overheads. If you have issues with something there are people here that are glad to help you and the others out but don't come here and bash all the efforts that people in the group offer. Sorry about the RANT but posts like the one from TYCREEK do no one any good. We have told you our experiences so you can make a decision to purchase or not. If you chose to great and if you do not, enjoy your truck. :-{}

WHAT? His post was negative? Dude, I thought his post was pretty accurate. Your post is more critical than TYCreek IMHO. Lighten up and let others post their opinions.

 

[TYCreek]

Yes Oh mighty one! Your mouth is a flappin...



FYI ... I offered an end result ... as a contribution. Not to dispute but to further prove! ...



My only dispute is jumping on somebody that might take some faith in the OH...



And NO I'm not new ... let's say reborn!

 

[Matt400]

The sensor advances timing and that has the potential for an increase in mpg.

I advanced my timing by moving the tone wheel vs the sensor and then hand calculated the change of 1. 5 mpg better.



I think it makes a difference on how you drive with this mod. My increase came with 1/4 to 1/2 throttle driving. If your a 1/2 to full throttle kinda person then results will vary. I think this thread got off on the wrong track with the overhead posts. There are other threads on the sensor and tone ring mod where folks are hand calculating mileage.

 

[Sled Dog]

I hand calculate every tank. With the Rokktech my mpgs increased.

If you want logs, buy a pencil and notebook!



Thanks Matt for the Tone Ring info.

 

[Matt400]

If you want logs, buy a pencil and notebook!

:-laf :-laf