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  #1  
Old 11-10-2012, 07:49 PM
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0 to 100 time after Installing 20% UD pulley from Summit Racing

Just decided to run my 2006 Jeep Grand Cherokee Limited this afternoon after installing a 20 %UD pulley from summit Racing. Since my Diablo Sport is currently away for repairs, I guesstimate I ran anywhere from a 14.15 to a 14.3 zero to 100 time. Take note that my current best in the 1/4 mile was 14.48. If anything, I am am gaining more mid to top end power?

You be the judge, I could see and feel the difference; however, I could be wrong..

Post installation time
from about 60 to 100 its roughly about 8.4 -8.5 sec


pre installation time

Before, from 60 to 100 it was about 8.8-8.9 sec


you can see the difference if you time it?
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(06' Black JGC Limited with FULL SRT8 Body Kit, SRT8 Roof Rails and Mopar Spoiler, Mopar Front Bumper Grill Badge, Hemi345 BADGE, Diablo Trinity Programmer W/91 Performance Tune from ST Motorsports,SheraDon Stage 3 Performance Transmission + 2800 Stall, Inertia Performance Heads, Inertia Spartan Plus Cam, Srt8 Headers/Exhasut Manifolds, Full SRT8 Corsa Exhaust System W/ Reso Delete, Brian Quick 5" tips, 20% UD Pulley, 85mm Ported TB, K&N 77 Series CAI, Jet Flow 180* T-Stat, Billet Catch Can, 22 Inch Flat Black Factory Reproduction SRT 8 Replicas, Eibach Lowering Springs, Power Stop Rotors, Painted Red Calipers, Bosh Iridium Plugs, Shorty Billet Antennae, Limo Tint All Around with Mopar Matte Black Front Window Decal) and Jeep Black Ops Paramedic Hood
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Old 11-14-2012, 09:38 AM
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Re: 0 to 100 time after Installing 20% UD pulley from Summit Racing

Question, why do you have tow/haul mode on? Is it something to do with converter being locked?
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Old 11-14-2012, 12:33 PM
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Re: 0 to 100 time after Installing 20% UD pulley from Summit Racing

Beast! Did you use a shorter belt?
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Old 11-14-2012, 03:03 PM
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Re: 0 to 100 time after Installing 20% UD pulley from Summit Racing

Beast! Did you use a shorter belt?

Yes I used a shorter belt. Runs great!

Question, why do you have tow/haul mode on? Is it something to do with converter being locked?

Well, from what Ive heard it disables MDS and engages at all 8 cylinders on take off, opposed to 4.
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Old 11-14-2012, 03:44 PM
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Re: 0 to 100 time after Installing 20% UD pulley from Summit Racing

Nice to know, do you always run around with it pushed or only when youre doing launches and runs?
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Old 11-16-2012, 01:46 AM
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Re: 0 to 100 time after Installing 20% UD pulley from Summit Racing

Just on a run
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Old 11-20-2012, 01:00 AM
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Re: 0 to 100 time after Installing 20% UD pulley from Summit Racing

^ WOT will use all 8 anyway, but tow/haul will change/ raise shift points & keep OD off. if you don't have your shift points changed in/with your programmer, its very helpfull, and fun of course!
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