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  1. #101
    Member 1nstyzj's Avatar
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    Put mine on the rollers! 98 5.9 all stock minus a growler, eBay intake and 703 injectors. Put down 213whp/304wtq

  2. #102
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    Quote Originally Posted by 1nstyzj View Post
    Put mine on the rollers! 98 5.9 all stock minus a growler, eBay intake and 703 injectors. Put down 213whp/304wtq
    What gear, etc, did you dyno in? Also, what kind of dyno? Those are some damn good numbers for something that close to stock!



    I'll be doing mine in the spring when a local place up here in Rochester has a cheap dyno day, and with the manual TC lock switch, I should be able to get a nice pull in 3rd with the TC locked.

    For anyone else wondering how to put one of these in, it's really easy (my instructions will work on any 46RE or 44RE with a JTEC PCM, they'll also work on a 42RE JTEC, but it's probably a different pin on the PCM). Find the wire coming from pin 11 of the center PCM connector, and install a switch that grounds it through either a 33 or 50 ohm resistor (the resistor is to prevent a CEL). It'll lock in 2nd, 3rd or 4th, but not 1st or manual 2nd (unless you mod the valve body to allow it). Try not to let it upshift while locked though. When you're in 3rd or 4th with it locked, it won't downshift, even at WOT until you unlock the TC (unless you're going slow enough for a kickdown to 1st, which it'll do after unlocking the converter, pulling into manual 2nd will also unlock and downshift, however, turning OD off will stay in 4th until you unlock).

    For a dyno pull with the manual lock switch, you want to get up to around 40 with OD off, lock the converter and then go for it. That should give useful data from 2000 rpm until redline.
    1998 ZJ 5.9 Limited - Deep Slate
    Mods: Big trans cooler, 231 swap, Indy MA-X heads prepped by IMM, Comp 20-744-9 cam, 1.7 HS roller rockers, 52mm TB, Airgap manifold, DT headers and full 3" exhaust, SCT tune homebrewed by me, Martin Saine valve body, B&M tranny pan, magic suspension made from unicorn tears, power steering cooler, lots of lighting mods

  3. #103
    Enth E Nd JeepGuy98's Avatar
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    Wow....My cam must have dropped the torque quite a bit. I put down 226whp and 271wtq with my 5.2
    Last edited by JeepGuy98; 12-01-2012 at 03:43 PM.

    2000 BMW 540i M-Sport

    Cammed 97 5.2-Sold

  4. #104
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    Quote Originally Posted by JeepGuy98 View Post
    Wow....My cam most have dropped the torque quite a bit. I put down 226whp and 271wtq with my 5.2
    I don't think you lost any peak torque, actually, you probably gained some. Keep in mind, a stock 5.2 is 300 ft. lbs. at the crank, so accounting for drivetrain loss, it would be around 220 - 260 at the wheels, depending on how high / low the dyno you're on reads.
    1998 ZJ 5.9 Limited - Deep Slate
    Mods: Big trans cooler, 231 swap, Indy MA-X heads prepped by IMM, Comp 20-744-9 cam, 1.7 HS roller rockers, 52mm TB, Airgap manifold, DT headers and full 3" exhaust, SCT tune homebrewed by me, Martin Saine valve body, B&M tranny pan, magic suspension made from unicorn tears, power steering cooler, lots of lighting mods

  5. #105
    Member 1nstyzj's Avatar
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    [QUOTE=comptiger5000;115239]What gear, etc, did you dyno in? Also, what kind of dyno? Those are some damn good numbers for something that close to stock!



    Thank you! It was a third gear pull on a dynojet

  6. #106
    Member 1nstyzj's Avatar
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    Also od was off

  7. #107
    Member doc holaday's Avatar
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    Just got off the dyno for a baseline run. Did one pull with the pcm returned to stock settings, and another few w it tuned for 93 octane from hemifever.

    All runs were in 3rd gear, od off and front ds pulled (rwd). Running 285/60/16 kumho kl78. Did not take the kick down cable off, didn't know it could be done til I opened this thread...

    My jeep is fairly stock, flowmaster 44, high flow cat, stock tail and y piping. CAI and a modded 52mm tb. IAT relocated to intake piping. Msd coil and upgraded wires.



    Sheets hard to see but stock run netted 209hp and 249 tq. But this test didnt start til higher in the rpm so the tq isn't where it should be. On the 93 oct tune w the sct it put down 222hp and 353tq. This run started a bit lower, 3100rpm compared to almost 3650 rpm on the first run. I suspect my tq # on the stock run would be significantly higher at the lower rpm.

    Now I have a real starting point to work on, headers, 3" exhaust, cam, intake plenum fix, roller rockers and an msd 6a are all sitting in the garage waiting fir the TII RX7 to get finished up. The tuner suspects w this list I should be near or over the 300 hp mark with a solid tune so I'll update one it goes back on.

    Any one able to analyze this graph, I dont know what the dip around 3200 is from. The SCT definatly Opened up the mid range with a nice curve.
    Last edited by doc holaday; 06-07-2013 at 03:29 PM.
    '98 5.9L Grand Cherokee - SCT (FlyinRyan tuned), Thorley Headers, 3" Kolak Exhaust (Flowmaster 50 & Magnaflow Cat), Mopar Purple Cam, HS Roller Rockers, AEM/ Ebay CAI, 52mm BLKDAK TB, Modded Keg, MSD Ignition, 44A Aussie Locked, 3.5" IRO w Doetsch shocks, front and rear adjustable TB's, Toyo AT2 265/75R16

    '87 RX-7 - RacingBeat Header, 2.25" Exhaust, CAI, RacingBeat Flywheel, LSD, Teins S Springs, Sold

    '87 RX-7 TII - Corksport 3" DP, 2.5" Custom Exhaust, Corksport CAI, BNR Stage 1 Turbo, Fidenzia AL flywheel, Spec Stage 2 Clutch, Tein S Springs, Rtek7 1.7 ECM

    '03 Polaris 8oo XCSP

    '06 Polaris 8oo HO Sportsman - 27" Mud lite XL's, Uni Air Filter, 2" level, QSC clutch kit

  8. #108
    Modfag Saleen4971's Avatar
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    2 things.

    1 the two runs started at different revs.

    2 the tuned run clearly had converter flash. Its not putting out 420tq at the motor. And if it did, it wouldn't drop off like that. Peak numbers here are useless.
    Ross
    1998 Grand Cherokee 5.9 Limited
    MPP Headers - Thunderbolt Metallic Cat - 3" Mag catback - EBC Brakes w/ drilled Rotors - 4bbl M1 - Vortech 12psi - Built trans & 2900 stall - Ford 8.8 - Addco & Hellwig Sways - Poly Bushings - H&R Springs - Grabber UHP Tires - Alpine/Infinity Stereo - FX-R BiXenon Retrofit

  9. #109
    Modfag Saleen4971's Avatar
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    Also for a solid tune contact flying ryan
    Ross
    1998 Grand Cherokee 5.9 Limited
    MPP Headers - Thunderbolt Metallic Cat - 3" Mag catback - EBC Brakes w/ drilled Rotors - 4bbl M1 - Vortech 12psi - Built trans & 2900 stall - Ford 8.8 - Addco & Hellwig Sways - Poly Bushings - H&R Springs - Grabber UHP Tires - Alpine/Infinity Stereo - FX-R BiXenon Retrofit

  10. #110
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    Quote Originally Posted by Saleen4971 View Post
    Also for a solid tune contact flying ryan
    Ryan just sent me some revised tunes to load to my SCT but I have no way to open the files so that I can save them.

  11. #111
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    They should just save to computer from email correct? Thats what mine do.
    '98 Grand 5.9 "Black Pearl" totaled
    '98 Grand 5.9 "Eleanoir"
    "No Officer, all four tire tracks are mine, it WAS all wheel drive......yes ma'am Im aware this structure is normally used to 'park' cars"

  12. #112
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    Quote Originally Posted by lilbullie5.9 View Post
    They should just save to computer from email correct? Thats what mine do.
    This is true but my puter won't open the files.

  13. #113
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    Lets move this to message...incoming.
    '98 Grand 5.9 "Black Pearl" totaled
    '98 Grand 5.9 "Eleanoir"
    "No Officer, all four tire tracks are mine, it WAS all wheel drive......yes ma'am Im aware this structure is normally used to 'park' cars"

  14. #114
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    Pretty heavily considering doing a dyno day next weekend. Would have the options of 2 wheel or all wheel. My only hold back is that my trans has been a little weird since the rebuild and im pretty sure it would be really really bad if it bucked on a dyne...thoughts?
    '98 Grand 5.9 "Black Pearl" totaled
    '98 Grand 5.9 "Eleanoir"
    "No Officer, all four tire tracks are mine, it WAS all wheel drive......yes ma'am Im aware this structure is normally used to 'park' cars"

  15. #115
    Member Mark 318 ita's Avatar
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    hi guys,
    has anyone ever tried on a dyno the difference between a 2wd run and a 4wd?
    thanks
    98 ZG 318 limited: np 242 swap, aussie locker, shift kit, optima red, 170lbs reduction, 5.9 vents, tcase skid, kn air filter, air ram, 1.7 HS RRs, SCT 93 oct tune, magnaflow muffler 12255, magnaflow hi-flo cat, spectre air hat, 2x52mm tb, 5.9 efan swap, ngk fr5-1 plugs, mopar perf wires, new cap 'n rot, maxxperf coil, iat relocation, roof lights, pirelli scorpions on masitaly 16x7 rims ET=0, ome HD coils +2",rubic exp +2"shocks, skyjacker ss, rubic exp adjustable front arms, jks rear+procomp front trackbar, prothane engine n tranny mounts, prothane sway bars bushings, drilled n slotted rotors, aeronautical front brake lines, purple led into front grill, hella h4s 100/55w, osarm h3s 55w.
    my channel
    https://www.youtube.com/TommyVercettism/videos

  16. #116
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    Quote Originally Posted by Mark 318 ita View Post
    hi guys,
    has anyone ever tried on a dyno the difference between a 2wd run and a 4wd?
    thanks
    There will be a small loss measured due to spinning the additional parts. The 4wd dyno would be closer to what you'll actually see in the real world, as those bits are spinning even in 2wd when actually driving.

    I'm pretty sure that a Dynojet will show a slightly larger difference than a Mustang dyno (load cell type). The Dynojet will see the increased rotating weight from the front driveline and wheels more than the Mustang dyno will (both will see the additional drag from rotating more driveline parts).
    1998 ZJ 5.9 Limited - Deep Slate
    Mods: Big trans cooler, 231 swap, Indy MA-X heads prepped by IMM, Comp 20-744-9 cam, 1.7 HS roller rockers, 52mm TB, Airgap manifold, DT headers and full 3" exhaust, SCT tune homebrewed by me, Martin Saine valve body, B&M tranny pan, magic suspension made from unicorn tears, power steering cooler, lots of lighting mods

  17. #117
    Member Mark 318 ita's Avatar
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    thanks, i was asking beacuse everyone here ask me about my zj after the 242 swap: is it faster in 2wd?
    to be honest i'm not feelin much difference...
    98 ZG 318 limited: np 242 swap, aussie locker, shift kit, optima red, 170lbs reduction, 5.9 vents, tcase skid, kn air filter, air ram, 1.7 HS RRs, SCT 93 oct tune, magnaflow muffler 12255, magnaflow hi-flo cat, spectre air hat, 2x52mm tb, 5.9 efan swap, ngk fr5-1 plugs, mopar perf wires, new cap 'n rot, maxxperf coil, iat relocation, roof lights, pirelli scorpions on masitaly 16x7 rims ET=0, ome HD coils +2",rubic exp +2"shocks, skyjacker ss, rubic exp adjustable front arms, jks rear+procomp front trackbar, prothane engine n tranny mounts, prothane sway bars bushings, drilled n slotted rotors, aeronautical front brake lines, purple led into front grill, hella h4s 100/55w, osarm h3s 55w.
    my channel
    https://www.youtube.com/TommyVercettism/videos

  18. #118
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    It won't be any faster, all the 4wd bits are still spinning, they just don't have power applied.
    1998 ZJ 5.9 Limited - Deep Slate
    Mods: Big trans cooler, 231 swap, Indy MA-X heads prepped by IMM, Comp 20-744-9 cam, 1.7 HS roller rockers, 52mm TB, Airgap manifold, DT headers and full 3" exhaust, SCT tune homebrewed by me, Martin Saine valve body, B&M tranny pan, magic suspension made from unicorn tears, power steering cooler, lots of lighting mods

  19. #119
    Member Mark 318 ita's Avatar
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    ok thanks, now it's clear.
    I was under the impression that in 2wd all the power is going to 2 wheels so if you aren't smokin the tires you are having a better acceleration.
    I'm not sure if i explained myself properly...
    98 ZG 318 limited: np 242 swap, aussie locker, shift kit, optima red, 170lbs reduction, 5.9 vents, tcase skid, kn air filter, air ram, 1.7 HS RRs, SCT 93 oct tune, magnaflow muffler 12255, magnaflow hi-flo cat, spectre air hat, 2x52mm tb, 5.9 efan swap, ngk fr5-1 plugs, mopar perf wires, new cap 'n rot, maxxperf coil, iat relocation, roof lights, pirelli scorpions on masitaly 16x7 rims ET=0, ome HD coils +2",rubic exp +2"shocks, skyjacker ss, rubic exp adjustable front arms, jks rear+procomp front trackbar, prothane engine n tranny mounts, prothane sway bars bushings, drilled n slotted rotors, aeronautical front brake lines, purple led into front grill, hella h4s 100/55w, osarm h3s 55w.
    my channel
    https://www.youtube.com/TommyVercettism/videos

  20. #120
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    The power all goes to the rear, but the front drive bits are still spinning when moving down the road (they're still attached to the front wheels). So the parasitic power loss is still the same. A dyno will read slightly higher in 2wd as the vehicle isn't moving, so the front wheels, diff and driveshaft aren't spinning.
    1998 ZJ 5.9 Limited - Deep Slate
    Mods: Big trans cooler, 231 swap, Indy MA-X heads prepped by IMM, Comp 20-744-9 cam, 1.7 HS roller rockers, 52mm TB, Airgap manifold, DT headers and full 3" exhaust, SCT tune homebrewed by me, Martin Saine valve body, B&M tranny pan, magic suspension made from unicorn tears, power steering cooler, lots of lighting mods

  21. #121
    Member Mark 318 ita's Avatar
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    understood, thanks
    98 ZG 318 limited: np 242 swap, aussie locker, shift kit, optima red, 170lbs reduction, 5.9 vents, tcase skid, kn air filter, air ram, 1.7 HS RRs, SCT 93 oct tune, magnaflow muffler 12255, magnaflow hi-flo cat, spectre air hat, 2x52mm tb, 5.9 efan swap, ngk fr5-1 plugs, mopar perf wires, new cap 'n rot, maxxperf coil, iat relocation, roof lights, pirelli scorpions on masitaly 16x7 rims ET=0, ome HD coils +2",rubic exp +2"shocks, skyjacker ss, rubic exp adjustable front arms, jks rear+procomp front trackbar, prothane engine n tranny mounts, prothane sway bars bushings, drilled n slotted rotors, aeronautical front brake lines, purple led into front grill, hella h4s 100/55w, osarm h3s 55w.
    my channel
    https://www.youtube.com/TommyVercettism/videos

  22. #122
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    Quick question for you guys. I'll be purchasing a 5.9 shortly and I've been lurking these forums for some time. How much do 408 strokers tend to dyno? And are you guys still running 4wd or did you pull out the transfer case? Sorry if these questions are stupid/obvious.

  23. #123
    Forum CONDUCTOR Man Z88Z's Avatar
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    Quote Originally Posted by John_G View Post
    Quick question for you guys. I'll be purchasing a 5.9 shortly and I've been lurking these forums for some time. How much do 408 strokers tend to dyno? And are you guys still running 4wd or did you pull out the transfer case? Sorry if these questions are stupid/obvious.
    Hard to give a rough estimate. Really depends on the machine work you put into it besides the stroker stuff - head work probably nets you the most.

    If you ask flyinryan, our resident SCT tuner, you might find you can get close to the power levels you're looking for with (I think, about a) .30 over build. A lot cheaper and leaves you more money for head work.


    There are very few dedicated 2WD 5.9 ZJ builds that I can think of. Going to 242 or 231 transfer cases with the ability to go 2WD or 4WD, AWD, etc are a lot more common.

    See the couple of posts above, as far as dyno reading vs 2WD/4WD

  24. #124
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    11081093_10153691032569008_965653206595541240_n.jpg245/297 in 2wd with K&N, 52mm, M1 2bbl, 1.7 HS RR, DT headers, and 3" E cutout open with a slightly confused computer from changing tunes on the dyno

  25. #125
    Member Mark 318 ita's Avatar
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    Quote Originally Posted by minn1231 View Post
    11081093_10153691032569008_965653206595541240_n.jpg245/297 in 2wd with K&N, 52mm, M1 2bbl, 1.7 HS RR, DT headers, and 3" E cutout open with a slightly confused computer from changing tunes on the dyno
    running strong
    how many miles on it?
    98 ZG 318 limited: np 242 swap, aussie locker, shift kit, optima red, 170lbs reduction, 5.9 vents, tcase skid, kn air filter, air ram, 1.7 HS RRs, SCT 93 oct tune, magnaflow muffler 12255, magnaflow hi-flo cat, spectre air hat, 2x52mm tb, 5.9 efan swap, ngk fr5-1 plugs, mopar perf wires, new cap 'n rot, maxxperf coil, iat relocation, roof lights, pirelli scorpions on masitaly 16x7 rims ET=0, ome HD coils +2",rubic exp +2"shocks, skyjacker ss, rubic exp adjustable front arms, jks rear+procomp front trackbar, prothane engine n tranny mounts, prothane sway bars bushings, drilled n slotted rotors, aeronautical front brake lines, purple led into front grill, hella h4s 100/55w, osarm h3s 55w.
    my channel
    https://www.youtube.com/TommyVercettism/videos

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