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Blackpepper's Dyno Tested CMR Tune - Pics/Videos

12K views 80 replies 21 participants last post by  blackpepper 
#1 · (Edited)
5.7L
Bwoody
Magnaflow
Diablo Sport
CMR Dyno Tune

First of all, big thanks to Ditos Motors! I went to get some dyno testing for the CMR tune through Diablo Sport's Predator handheld programer. I arrived at the shop with the 91 octane canned tune already installed in the Jeep and got some baseline numbers from that setup before the CMR tuning started.

The 91 canned tune was slightly rich so the a/f ratio was adjusted and a few percentages of timing was added, not too much because I don't have a huge setup... yet. I'm really happy with the gains, the custom tune has really smoothed out torque management although the lag is still somewhat there (from ETC) but no big deal. The low end power has really improved and the Jeep wants to pull in fourth gear all day. With the CMR I was given a MDS on/off feature and the MDS doesn't surge like it used to with the canned tune. Activation is subtle again and the transmission feels crisp and much happier.

I also had installed the Jet 180* and can report that the coolant needle rests comfortably between the quarter mark and the halfway mark on the coolant gauge. As mentioned in other threads, it's most likely needed if you plan on having a tune.

I have a graph from the canned tune run and the custom CMR run. The Red line is horsepower, the Blue line is torque and the Green line represents RPM.

Canned 91 Octane
  • 265.4 Hp
  • 297.0 ft-lb


CMR Tune
  • 275.4 Hp
  • 306.4 ft-lb


Picture!



Timeslips



Thanks for stopping by! :thumbsup:
 
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#9 ·
I got five pulls but the very first one I was in the waiting room so video of that. He said the next thing would be a cam and/or a beefier torque converter.

That is sexay.


I cannot wait for your results tomorrow.
Neither can I.

Sick bro, congrats!
Yup, when are you going to stack your chips and hit the dyno?

Congratumalations.

I would also edit where it says your name on the graphs. Just in case we have some online stalkers here haha
Thanks and noted :)

Nice Dyno Ryan! Feels good huh?
Feels great, Paul! The CMR made the transmission "sophisticated" again. With the canned tune, the torque converter lockup was sometimes too much to take but the "clunk" is all but gone.

And the Cold War continues. :D
"The Cold War isn't thawing; it is burning with a deadly heat. Communism isn't sleeping; it is, as always, plotting, scheming, working, fighting." - Richard Nixon

Awesome stuff Ryan!! That Jeep of yours sounds great....and congrats on the gains!!
Thanks, Hannes! It's subtle when it wants to be and loud when it's angry. I like.
 
#4 ·
Sick bro, congrats!
 
#10 ·
Just a question... did you have a CMR tune done or did he just make adjustments with the handheld only? What I'm getting at is there's a difference between the two. If he just modified the canned tune like you pretty much have said in your first post, then that's not a CMR tune by any means. If you were charged for a CMR, then I'd call them and ask WTF? If the tune was written on a computer, then loaded into the handheld, then into the truck, then that is a CMR tune.

The difference is a CMR tune has soooooooo many more adjustments than what the handheld offers you. From what you have described as the work done today, was everything that the handheld offers you. How much did he charge you? His website says it's $190/hour for his CMR tuning. I don't know if you know the guy or not or got a deal or whatever, but that's what his site says. I don't like to see people get taken advantage of if they don't konw the difference. You know if he did any datalogging while dyno'ing the truck? Basically his laptop is plugged into the Diablo which is plugged into the OBD-II port and it's reading about 15-1000 different things on the vehicle?

Sorry for the rant.... just wondering though.:D
 
#11 ·
It was written on a computer, loaded into the handled, then into the truck. He was constantly going back and forth from a computer located on the driver's side against the wall, back to a hand-held device that was connected to the computer via a wire that wasn't the diablo itself. No way did he sit in the seat and mess with the predator. There were true revisions going on from what I can tell.. so it should be a CMR.

I'm sure he did some logging I asked how the a/f was and he went to his laptop to check the adjustments. The canned tune was rich and he leaned out the a/f and said it was reading around 11.9-12.0 under what conditions I'm not sure but he said the canned tune was down around 10.8
 
#13 ·
Gotcha..... just trying to understand that he didn't getcha. Just trying to make sure he wasn't only adjusting the settings on the handheld for the WOT SPARK and WOT FUEL. You can still use the laptop to do the Datalogging with Diablo's Dataviewer program that you can get.

There's percentages of fuel to adjust, but not percentages of timing. Timing is adjusted in Degree's by the way.:D

Sounds like you got a pretty good tune. 10hp. gain is great over a canned tune without being balls out. You gotta watch out for tuners that will severely de-sensitize the KNOCK SENSORS so they can run more timing. Enjoy the new tune bro. It'll definitely wake the Jeep up a little more.
 
#12 ·
Ive been telling Joe and Frankie that a cam would get them in the 13's for awhile...maybe you will listen now that someone not from KY tells you so......LOL
 
#14 · (Edited)
I think I will start researching cams, but if you know me that doesn't mean that I'm going to act on it any time soon. One thing at a time.. :D

Gotcha..... just trying to understand that he didn't getcha.
:lol:

Thanks for the concern, Harrison.

:thumbsup:
 
#15 ·
U still a hair rich if u are in the 11.9-12.0 range and 10.8 is WAY rich...I was off on the TQ numbers alittle but DAM spot on about HP...Looks good and congrats on your numbers bro!! Hell i only put down 315.6HP and i got heads and a cam...U want to line them up maybe
 
#16 ·
Thanks for the compliments and the information, Bubba! What do you mean by "line them up"? .. not following you on that.
 
#18 ·
Haha, maybe a question mark after and I would have understood it's context. I'm laughing now :D

Give me five car lengths and you have a race.
 
#19 ·
Haha, maybe a question mark after and I would have understood it's context. I'm laughing now :D

Give me five car lengths and you have a race.
Bro my 1# rule is I DONT RACE OTHER JEEPS i just cant ! i had a guy in a 4.0l jeep ZJ want to race me leaving home depot i just let him win he laughed at me to ...I said to myself "TO AWAKE THE SLEEPING GIANT IS NEVER GOOD" lol
 
#20 ·
LOLz! Great quote.
I'm metaphorically racing Joe over in NYC we have an arms race based on numbers going on for N/A 5.7s

Turbo Tim already has us beat, he doesn't count.
 
#21 ·
I turned down a race today myself. Some tool in a Camaro Z-28 SS(not a new one) was next to me at the light. Hell, I've got 8 gallons of 100 octane in my Jeep right now. I'm not wasting it on his ass!

12.0 is pretty safe AFR's. Yeah 12.4-12.5 would yield you some more power but that approaching the Oh No Zone. Esp. depending on your timing. You've got a good tune. Have fun with it. I need to get back on the dyno to see what I'm putting out now with my cam. Maybe I'll do that next week. Thanks for getting my little hamster wheel turning!
 
#23 ·
Nice job, Blackpepper. You could probably pick up another 3-4 whp by going to a AFR of 12.3-12.5. But where you're at right now, the tune is very safe and allows you to add more mods before needing a re-tune, such as a throttle body, headers, etc.
 
#25 ·
Time slips added post #1 ^^^

Wise words in this thread :)
I was thinking the same thing about the tune today when I was at the track.. I picked up some decent numbers but right were they should be for this tune: extra power that still feels proper for a DD.
 
#27 ·
Comparing a gasser to a diesel is an apples to oranges comparison.

The dyno numbers do not tell the whole story. These Jeeps (WJs too) consistently put down low numbers on the dyno. I believe it's from the transfer case- for whatever reason this problem does not really plague the ZJ.

The more I think about it, the better Blackpepper's tune is. I'm assuming the gas in use out there is E10 (10% ethanol), which is different requirements compared to straight pump gas. On straight pump gas, you can get away with running a 12.8 or so AFR and be in the safe zone, but on E10 you want it in the low 12's to keep it happy. Ethanol requires more fuel to complete the combustion process.

Another thing to consider is that this CMR tune is for 91 octane. There's no 93 out in CA. Definitely leaving some timing on the table.
 
#33 ·
By all means call me Ryan.

I had Elvis correct the times for me while I was at the track and I think it corrected to a 14.39...
 
#34 · (Edited)
By all means call me Ryan.

I had Elvis correct the times for me while I was at the track and I think it corrected to a 14.39...

CORRECTED for what? unless your high in elevation ... your truck ran what it ran... Sorry but i just don;t get into the whole "Corrected" math. Now if your trying to compare times from one guy in Colorado and another guy at sea level, then maybe i could understand it.... But basically your truck ran the 14.53

Oh and remember time is dependant on your ability put the power to the ground...suspension, tires, your driving. Mph shows your hp.....
 
#35 ·
Corrected times are for sissy's who run slow but want to feel like they did something!! Blackpepper u need to hand joe his azz at the track bro he thinks hes the king of the 5.7 crowd now that he beat marios time lol
 
#37 ·
Those look like pretty good numbers for a 5.7 jeep. The cmr tune is always better than the canned tune in my opinion.
 
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