My performance gains from superchips and 5.38's
11-18-2010, 11:10 AM
#1
JK Enthusiast
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My performance gains from superchips and 5.38's
Thought i would post something a bit more positive about my latest upgrades. For those of you who havent read my latest thread i am trying to get a driveline vibration pin pointed after i had my 5.38's installed.
4 door rubi, 35 mud grapplers, auto, 3.5 lift
Anyways
stock 0-60 time was 13.3 average
superchips on 93 tune plus k&n filter average 12.3
added the 5.38's and im down to a 10.8!
Thats almost a 20 % percent decrease in 0-60 time. Pretty good for $1575.00
Oh and before everyone starts on how jeeps are not supposed to be fast i know. i dont race my jeep around! I do think that 0-60 times are a good way for most people to evaluate improvements in power.
4 door rubi, 35 mud grapplers, auto, 3.5 lift
Anyways
stock 0-60 time was 13.3 average
superchips on 93 tune plus k&n filter average 12.3
added the 5.38's and im down to a 10.8!
Thats almost a 20 % percent decrease in 0-60 time. Pretty good for $1575.00
Oh and before everyone starts on how jeeps are not supposed to be fast i know. i dont race my jeep around! I do think that 0-60 times are a good way for most people to evaluate improvements in power.
11-18-2010, 03:16 PM
#2
JK Enthusiast
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What I found interesting was my 0-70 time was a 10th of a second faster using the Tow Tune than the Performance Tune. On the Tow Tune I had 15.43 seconds. On the Performance Tune I had 15.53 seconds. The tests were performed with 93 octane gas within a few minutes of each other. The Tow Tune also seems to run better in my rig. I have tried them all and always fall back to the Tow Tune.
11-18-2010, 10:05 PM
#4
JK Super Freak
But if you advance your timing, let’s say with a superchip unit and you may hear pinging. That is detonation and you can remedy it by using a higher octane fuel.
11-19-2010, 03:28 AM
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JK Junkie
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Also can you elaborate on your tests a bit? Did you brake-torque to get up on the converter at launch or was it just from idle?
11-19-2010, 04:55 AM
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JK Junkie
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Really? You don't think igniting the mixture earlier (even MORE before Top Dead Center) increases cylinder pressure?
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11-19-2010, 06:01 AM
#8
JK Enthusiast
Guys running the tow tune, does your MPG drop vs the 91 performance tune? Mainly in mixed driving conditions. I would expect a drop for freeway driving using the tow tune.
11-19-2010, 07:21 AM
#9
JK Enthusiast
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My JK is slightly different than ARM2004's. I have 5:13 gears, Automatic, MBRP Exhaust and a drop in K&N. I don't have 0-60 times, but I did a similar test using the 0-70 Data Acquisition capture in Superchips.
What I found interesting was my 0-70 time was a 10th of a second faster using the Tow Tune than the Performance Tune. On the Tow Tune I had 15.43 seconds. On the Performance Tune I had 15.53 seconds. The tests were performed with 93 octane gas within a few minutes of each other. The Tow Tune also seems to run better in my rig. I have tried them all and always fall back to the Tow Tune.
What I found interesting was my 0-70 time was a 10th of a second faster using the Tow Tune than the Performance Tune. On the Tow Tune I had 15.43 seconds. On the Performance Tune I had 15.53 seconds. The tests were performed with 93 octane gas within a few minutes of each other. The Tow Tune also seems to run better in my rig. I have tried them all and always fall back to the Tow Tune.
My posted times are 5 run averages. There was a 10th of a second difference or more in alot of my runs. So unless your gains from tow tune to 93 tune are based on averages i wouldnt consider them very acurate.
11-19-2010, 02:22 PM
#10
JK Junkie
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It's going to increase cylinder temp by a little bit *maybe*. Do you really think Jeep retarded the timing enough to improve power so much that cylinder pressures are high enough to warrant 93 octane? Come on. That's ridiculous. I don't think there would EVER be any pre detonation on stock compression with a naturally aspirated engine, none the less 93 octane. You can run 12 PSI on that kind of octane...even non-inter-cooled IIRC. It's ridiculous that a degree or two of timing would require the highest octane pump gas available. IF they are even getting 1 degree out of it.