Go Back   Jeep Garage - Jeep Forum > Modifications & Enhancements > Performance Modifications

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 10-25-2009, 11:32 PM
FlyinRyan's Avatar
Senior Member
My Jeep: 2002 4.7L WJ
 
Join Date: Jul 2009
Location: Fort Myers, Florida
Posts: 2,802
Thanks: 33
Thanked 31 Times in 30 Posts
Rep Power: 88628
FlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond repute
Send a message via AIM to FlyinRyan
Sleepy4.7 ON THE DYNO!!!!!

Myself, Sleeper, and Chaz went down on a whim to the Big Valley Performance dyno day. BVP is a predominantly import shop off of Orange Blossom Trail in Orlando. They have an in-house Dynojet Eddy Current dyno, which I'm told is 1 of 13 on the East Coast. They charged us 65 each for 3 pulls. The dyno was AWD, which is why I decided to go.

For quick reference:
Ryan (myself): '02 4.7 WJ, Hybrid lift, 31" tires, FRP prototype TB, homebrew POS intake with ginormous 6x11" UNI filter, SCT custom tuning, 3" ceramic coated exhaust
Sleeper: SN95 mustang V6 with Mark 8 Lincoln 4.6 DOHC swapped in, AOD w/ 3.73s, big K&N, X pipe, flows
Chaz: 4th gen Camaro V6 5 spd, intake lid, pacesetter shorty headers, flowmaster muffler

We got there and once we figured out how everything would play out, we sat and watched an Evo X be tuned. this took 3.5 HOURS. Apparently the Evo X requires the use of a special extra deep-threaded spark plug that can only be purchased through the dealer. They had to physically run out to the dealer , get new plugs. It was worth the wait, as it eventually put down 490/415 on pump gas + meth. the car was an absolute monster. Very little of this time was used towards tuning, the downtime of troubleshooting the plugs & the parts run took up alot of that time spent with it on the rollers.

At about 6 pm, the Evo finally rolls off the dyno, and Sleeper goes. One thing that was kinda cool/interesting about BVP is that they let us operate the dyno ourselves. Specifically, we were allowed to be in the drivers seat while the car was on the rollers. No offense to Sleeper, but I guess he hasn't really ever watched a dyno closely enough to know what he was doing...he ran it WOT through the gears, banging the rev limiter on several occassions, until he hit the top of 3rd. his motor did not like this kind of treatment, as it billowed blue smoke out the tailpipes after the 1st run in particular. Once they got it to stop skewing the values, he put down 245/287...which is literally exactly in the range of the 240-250 whp I expected him to put down. He thought he was going to put down 300+ rwhp....I told him he is bound to be disappointed, and sure enough he was. Oh well, it happens.

Chaz had arrived just in time to get on the rollers. He put down several runs , all of which where shut down at 4500. Very interesting as we have been trying to troubleshoot a bogging issue at 4k at the track...Anyhow, a local tuner in the shop (more on that below) believed it was a speed sensor issue , i.e. freaking out due to sensing the front wheels going 0 mph while the rears were doing 100+ mph. Nonetheless, Chaz put down 178/218. Nice job BTW Chaz.

Then it was showtime for me. I had originally planned to be doing some remote dyno-tuning with Sean Powell of KRC Performance during my runs, but at the last minute I found out that the computer used for logging the graphs did NOT have internet. So I was basically stuck using the latest revision I had , a SCT custom 93 octane file I had loaded earlier in the day. My tuner was on dial in case we needed a tweak. I also had my laptop on hand with 15 or 16 files already written to play with.

I have an auto, and no trans control, so I got it to lock in 3rd, and gradually rolled on the throttle. Because it would downshift to 2nd if I dropped the hammer too soon (we had to abort 1 run because of this), I had to wind it up through the gears, get it to lock in 3rd, then at about 70 mph at 3200 rpm I could finally go WOT till about 115ish. The truck was dead consistent, netting 3 back to back to back runs of 180-182 awhp/240 awtq with 107* ambient temps in the dyno room, typical FL humidity, 31" off-road tires and a tune that was intentionally a little conservative. AFR was 12-12.1:1 . There is no doubt in my mind that we could have picked up another 5-10whp had I gone to one of my other files with leaner AFR and in some files more timing. But between my cooling issues, the hot dyno room, and my coolant temp spiking to 240 after every run, I did not want to push the limit. Knowing what it is capable of now, I will likely turn up the wick a little bit for the next dyno day we do as a club. My curve looks awesome- it holds max tq value from 3200 to 4000, and hp builds linearly. I'm very happy with the results.


Jerson (owner of BVP) and everyone at the shop was extremely friendly, supplying us with as much BBQ as we could eat. I would use their facility again.
__________________

__________________
Due to my workload, please do not PM me as I do not regularly check my PMs. Thank you :)
Reply With Quote
  #2  
Old 10-25-2009, 11:41 PM
Robert Palmer's Avatar
Rock N' Roll's Sophisticate/JG Co-Founder


My Jeep: 2010 6.1L SRT8
 
Join Date: May 2009
Location: Downtown Manhattan
Posts: 10,302
Thanks: 10
Thanked 62 Times in 52 Posts
Rep Power: 112731
Robert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond reputeRobert Palmer has a reputation beyond repute
Re: Sleepy4.7 ON THE DYNO!!!!!

Badass for the WJ. Too bad there were no pics and video. Love seeing video of dyno runs.
__________________

__________________
-Joe-



Silver
2010 Jeep Grand Cherokee SRT-8
Reply With Quote
  #3  
Old 10-25-2009, 11:53 PM
chefalan23's Avatar
Member
 
Join Date: Aug 2009
Posts: 222
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2073
chefalan23 is on a distinguished road
Re: Sleepy4.7 ON THE DYNO!!!!!

thats strange the mustang only put down 245. a bolt on 4v usually does 270 rwhp
__________________
07 JGC 2wd HEMI
4" Round Magnaflow with Reso Delete, Side Exit
93 oct Predetor Tune
MTX terminator
Reply With Quote
  #4  
Old 10-25-2009, 11:54 PM
FlyinRyan's Avatar
Senior Member
My Jeep: 2002 4.7L WJ
 
Join Date: Jul 2009
Location: Fort Myers, Florida
Posts: 2,802
Thanks: 33
Thanked 31 Times in 30 Posts
Rep Power: 88628
FlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond repute
Send a message via AIM to FlyinRyan
Re: Sleepy4.7 ON THE DYNO!!!!!

Quote:
Originally Posted by Elvis Presley View Post
Badass for the WJ. Too bad there were no pics and video. Love seeing video of dyno runs.
Check your phone, and there IS a video.....
__________________
Due to my workload, please do not PM me as I do not regularly check my PMs. Thank you :)
Reply With Quote
  #5  
Old 10-25-2009, 11:56 PM
FlyinRyan's Avatar
Senior Member
My Jeep: 2002 4.7L WJ
 
Join Date: Jul 2009
Location: Fort Myers, Florida
Posts: 2,802
Thanks: 33
Thanked 31 Times in 30 Posts
Rep Power: 88628
FlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond repute
Send a message via AIM to FlyinRyan
Re: Sleepy4.7 ON THE DYNO!!!!!

Quote:
Originally Posted by chefalan23 View Post
thats strange the mustang only put down 245. a bolt on 4v usually does 270 rwhp
its a Mark VIII motor, not a cobra motor, thats why.

Also, it's a Dynojet dyno, not a Mustang where you can fudge the numbers some....
__________________
Due to my workload, please do not PM me as I do not regularly check my PMs. Thank you :)
Reply With Quote
  #6  
Old 10-26-2009, 09:17 AM
B.P.O.D's Avatar
RockNrolla/JG Founder

My Jeep: 2008 3.7L WK
 
Join Date: May 2009
Location: Bergen County, NJ / Bushkill, PA
Posts: 14,644
Thanks: 3
Thanked 9 Times in 8 Posts
Rep Power: 16696
B.P.O.D has disabled reputation
Send a message via AIM to B.P.O.D
Re: Sleepy4.7 ON THE DYNO!!!!!

awesome bro!!!! where is the vid?!?!?!?!?!
__________________
Irfan "Showing off is the fool's idea of glory."
can you beat me in a fight??? http://dreamps.mybrute.com
member of Black, Tri-State, 6 cylinder club 08 Brilliant Black Laredo (JG 3.7L Squad)- k+n 63-1545,magnaflow 10436,mygig(ren), HID's 6k lows, 6k+3k fogs,dual turn leds,led brows,v-led interior leds, cargo led strip, reverse hids, 92 led brake lights, tinted tails,custom powder coated mesh grill, srt sways, 15% tinted windows,illuminated visors,shorty antenna, HH Class III, cargo liner, thule snowboard rack,kayak rack, bike rack

Future mods - color matched side mirrors, black srt reps

My 1-step correction writeup

How To - LED BROW

Reply With Quote
  #7  
Old 10-26-2009, 05:51 PM
dreamer1213's Avatar
Founding Member
 
Join Date: May 2009
Location: Jacksonville, FL
Posts: 918
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 2890
dreamer1213 has a reputation beyond reputedreamer1213 has a reputation beyond repute
Re: Sleepy4.7 ON THE DYNO!!!!!

Thats awesome Ryan!! Very glad that you got the results you wanted!
__________________
{ Hannes }

02 WJ Overland 4.7L H.O V8

Reply With Quote
  #8  
Old 10-26-2009, 06:00 PM
Scottina06's Avatar
JeepGarage Founder
My Jeep: 2014 6.4L SRT8 WK2
 
Join Date: May 2009
Location: Berea, Kentucky
Posts: 49,234
Thanks: 866
Thanked 973 Times in 688 Posts
Rep Power: 7717868
Scottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond reputeScottina06 has a reputation beyond repute
Garage
Re: Sleepy4.7 ON THE DYNO!!!!!

would love to see the video
__________________

__________________
SCOTT
The HARDER you work...the LUCKIER you are!
2014 REDLINE red Jeep SRT "BLOODIED\BlackOps CFR Edition" 1 of 1
2013 JKU Wrangler 10A-stormtrooper'ed, JW Speaker and more!
Previous JEEP rides-
2013 Jeep Grand Cherokee SRT-deep cherry
2006 Jeep Grand Cherokee Laredo-inferno red



Twitter-The_Jeep_Guy
Instagram-thejeep_guy

Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Blackpepper's Dyno Tested CMR Tune - Pics/Videos blackpepper Performance Modifications 80 08-06-2010 12:24 PM
Sickest SRT8.... smokes tires on the dyno! Harrison@Stage6 Showoff 29 11-17-2009 11:22 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 03:13 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community