benefit to SCT on stock

Jeepkid · 03-03-2009, 01:22 PM

Is there any benefit to an SCT tune for a stock or mild rig like mine?

Been thinking its be fun to tinker..

zj8urimport · 03-03-2009, 01:28 PM

Without a doubt. The 5.9's have a lackluster tune at best from the factory, especially if yours has had the "death flash" . Alot these 5.9's were flashed at the dealerships as per Chrysler because people were complaining of spark knock, so they were re-flashed w/ a tune that pulled some timing.

Jeepkid · 03-03-2009, 01:39 PM

well dont know too much about the death flash.. if you can run 14.7 on the death flash then the reg flash should be pretty good.. id really like to loose the torque managment

zj8urimport · 03-03-2009, 02:20 PM

If your running a 14.7 then your 9er has probobally not been re-flashed. With a good tune you should see a 14.4-14.5 no problem perhaps more (I always like to be conservative).

Jeepkid · 03-03-2009, 04:04 PM

that 14.7 was just intake and cut out .. im sure with the gears it should be a decent pep

zj8urimport · 03-03-2009, 04:48 PM

I'll bet the gears alone are worth .5

Ninergrad · 03-03-2009, 07:18 PM

Jason your gears alone will be worth it, you can adjust to shift at 5100rpm like i currently do, not to mention remove torque management!!!

darknine · 03-03-2009, 07:50 PM

what exactly is torque management and when does it come into play and what does it do when in effect

NoTime · 03-03-2009, 08:05 PM

It's a built in "Throttle Lift" at each gear change to minimize shock to the transmission. ( In Basic terms )

I used to cut one of the wires in my CG 4.7 / 4.7HO pcm and it got rid of the torque management.

Jeepkid · 03-03-2009, 08:10 PM

when i shift it manuallly it feels like it has a lot more power up higher..

darknine · 03-03-2009, 08:10 PM

i see so wont care since im swapping trannies. i second that manual shift ftw

Ninergrad · 03-03-2009, 09:47 PM

With my new tune, mu manual shifting actually feels worse then when I leave it up to SCT. i know it is crazy, but trust me, it was very hard to get used to.

Saleen4971 · 03-04-2009, 05:26 AM

it also cuts back on timing at a launch

sloZJ · 03-04-2009, 03:30 PM

Quote:

Originally Posted by NoTime

It's a built in "Throttle Lift" at each gear change to minimize shock to the transmission. ( In Basic terms )

I used to cut one of the wires in my CG 4.7 / 4.7HO pcm and it got rid of the torque management.

do i have that being obd1 1993? how do u get rid of that?

NoTime · 03-04-2009, 08:45 PM

Buy and 5.niner and a SCT

or a 4.7 and cut the wire

Not really sure on the obd1,,,, what controls the transmission? The main PCM or is there a transmission computer or is that Trany total hydraulic

Saleen4971 · 03-04-2009, 08:52 PM

on OBDI AFAIK it is totally hydraulic (except O/D and TCC engagement?)

unless your tlaking about the 4.0 AW4 trans, which IIRC has an external TCM

Djay762 · 03-09-2009, 05:01 PM

Quote:

Originally Posted by zj8urimport

Without a doubt. The 5.9's have a lackluster tune at best from the factory, especially if yours has had the "death flash" . Alot these 5.9's were flashed at the dealerships as per Chrysler because people were complaining of spark knock, so they were re-flashed w/ a tune that pulled some timing.

What is this "death-flash" I have never heard of it. Is there any way to know if you have it on your 5.9?

Saleen4971 · 03-09-2009, 06:50 PM

if you can run 87 octane fuel in teh summer w/ no issues - you have the death flash.

people got all pissy that they ahd to put 91+ octane fuel in their 5.9's, so the dealers woudl flash the PCM with a tune that was 87 octane friendly.

Djay762 · 03-09-2009, 08:42 PM

haha, isnt it bad to try and run 87 and see what happens?

Saleen4971 · 03-09-2009, 08:49 PM

haha, its not good, but it depends on how bad it pings.

Djay762 · 03-09-2009, 09:04 PM

i should probably just do it since i still have an extended warranty, i mean whats the worst that could happen...haha, or just get a flash this summer like I was planning on.

Jeepkid · 03-09-2009, 09:07 PM

Quote:

Originally Posted by Saleen4971

if you can run 87 octane fuel in teh summer w/ no issues - you have the death flash.

people got all pissy that they ahd to put 91+ octane fuel in their 5.9's, so the dealers woudl flash the PCM with a tune that was 87 octane friendly.

ya didnt they get all pissy when 91 was like just a hair over a dollar back when these jeeps came out..

Dmntxn77 · 03-09-2009, 09:40 PM

I'll buy you a SCT and give you my axles, in trade for your axles..

Saleen4971 · 03-09-2009, 10:31 PM

Quote:

Originally Posted by Jeepkid

ya didnt they get all pissy when 91 was like just a hair over a dollar back when these jeeps came out..

lol yep

Z88Z · 03-10-2009, 02:01 AM

Not sure but I thought if it had the death flash there was a flash version sticker on the PCM or by the info on the top radiator brace or both, and I thought maybe they stuck an Unleaded Only sticker over the Premium Only sticker on the gas filler door. Yes/no/maybe?

03-03-2009, 01:22 PM	#1
Jeepkid Moderator Join Date: Jan 2009 Location: Tacoma, Wa Posts: 2,382 Rep Power: 14	benefit to SCT on stock Is there any benefit to an SCT tune for a stock or mild rig like mine? Been thinking its be fun to tinker.. __________________ '98 5.9 ZJ 14.77 1/4 mile ,3in FM 40 series, HF Cat,E-Cut-out, Mx6 shocks,20x8.5 Cobra R's 255/45/20 Yokohamas, 5% limo tint,Addco 1.25" military bar front, Hellwig 7/8th bar rear, Regeared to 4.10's, 13" C6 Corvette Brake Kit with Dual piston caliper, Wj Control Arms, Doug Thorley headers, K&N Intake, boxed rear control arms with prothane bushings, Prothane trans mount, Martin Saines custom trans, Aux trans filter, B&M trans cooler, 242 Case swap, SCT Tuner Via hemifever, JL w6v2 sub, JL speakers, Kenwood amp,8 inch indash dvd '92 XJ, 4.0 HO 5in Rigid Co winch bumper '05 Hemi WK Limited,Nav,Dvd,AEM Brute Force intake(moms)

03-03-2009, 04:48 PM	#6
zj8urimport Balls Deep Join Date: Feb 2009 Location: Hilton Head, SC Posts: 234 Rep Power: 2	I'll bet the gears alone are worth .5 Last edited by zj8urimport; 03-03-2009 at 07:22 PM.

03-03-2009, 07:18 PM	#7
Ninergrad Administrator Fish Flight Champion! Join Date: Dec 1969 Location: Lake Stevens, WA Posts: 4,399 Rep Power: 1000	Jason your gears alone will be worth it, you can adjust to shift at 5100rpm like i currently do, not to mention remove torque management!!! __________________ -Davit. 98 ZJ 5.9L Slate Click here for MODS 96 ZJ 4.0L Gold 3.5" lift F>R, 31s", '00 intake manifold, K&N Fipk, 62mm TB, Gibson headers, 2.5" exhaust with dynatech race cat and Magnaflow

03-03-2009, 07:50 PM	#8
darknine aero brick Join Date: Jan 2009 Location: davenport,ia Posts: 1,063 Rep Power: 3	what exactly is torque management and when does it come into play and what does it do when in effect __________________ a.k.a the aerodynamic brick. dark slate niner gun metal ultrastars, aem intake, edelbrock headers waiting install. 93/94/95 5.2l scrapped slate 5.9l sold platinum 5.9l storage slate 5.9l fire totaled platinum 5.9l loaning out other platinum 5.9l: mike leach headers, mopar ecu, k and n CAI. alpine/ infinity system. pending kennebell install

03-03-2009, 08:05 PM	#9
NoTime Member Join Date: Jan 2009 Location: Sudbury, Ontario, Canada Posts: 1,062 Rep Power: 23	It's a built in "Throttle Lift" at each gear change to minimize shock to the transmission. ( In Basic terms ) I used to cut one of the wires in my CG 4.7 / 4.7HO pcm and it got rid of the torque management. __________________ 1998 ZJ 5.9 Platinum - DD and Fun Factor 2003 TJ Rubicon Inca Gold - Trail blaster 1973 Trumph GT6 MK III 2004 WJ Columbia Edition 4.7HO Brilliant Black ( Sold ) 1988 XJ Set up for the TRAIL ( Sold )

03-03-2009, 01:28 PM	#2
zj8urimport Balls Deep Join Date: Feb 2009 Location: Hilton Head, SC Posts: 234 Rep Power: 2	Without a doubt. The 5.9's have a lackluster tune at best from the factory, especially if yours has had the "death flash" . Alot these 5.9's were flashed at the dealerships as per Chrysler because people were complaining of spark knock, so they were re-flashed w/ a tune that pulled some timing.

03-03-2009, 01:39 PM	#3
Jeepkid Moderator Join Date: Jan 2009 Location: Tacoma, Wa Posts: 2,382 Rep Power: 14	well dont know too much about the death flash.. if you can run 14.7 on the death flash then the reg flash should be pretty good.. id really like to loose the torque managment

03-03-2009, 02:20 PM	#4
zj8urimport Balls Deep Join Date: Feb 2009 Location: Hilton Head, SC Posts: 234 Rep Power: 2	If your running a 14.7 then your 9er has probobally not been re-flashed. With a good tune you should see a 14.4-14.5 no problem perhaps more (I always like to be conservative).

03-03-2009, 04:04 PM	#5
Jeepkid Moderator Join Date: Jan 2009 Location: Tacoma, Wa Posts: 2,382 Rep Power: 14	that 14.7 was just intake and cut out .. im sure with the gears it should be a decent pep

03-03-2009, 08:10 PM	#10
Jeepkid Moderator Join Date: Jan 2009 Location: Tacoma, Wa Posts: 2,382 Rep Power: 14	when i shift it manuallly it feels like it has a lot more power up higher..

03-03-2009, 09:47 PM	#12
Ninergrad Administrator Fish Flight Champion! Join Date: Dec 1969 Location: Lake Stevens, WA Posts: 4,399 Rep Power: 1000	With my new tune, mu manual shifting actually feels worse then when I leave it up to SCT. i know it is crazy, but trust me, it was very hard to get used to. Last edited by Ninergrad; 03-04-2009 at 05:26 AM.

03-04-2009, 05:26 AM	#13
Saleen4971 Gerbil Lover Join Date: Jan 2009 Location: Long Island Posts: 4,885 Rep Power: 16	it also cuts back on timing at a launch __________________ Ross, aka fagotron. 1998 Grand Cherokee 5.9 Limited ML Headers - Thunderbolt Metallic Cat - 3" Mag catback - EBC Brakes w/ drilled Rotors - 4bbl M1 - Vortech 12psi - FUBAR'd trans & "2900" stall - Summit CD Box - Addco & Hellwig Sways - Poly Bushings - H&R Springs - Grabber UHP Tires - Alpine/Infinity Stereo - FX-R BiXenon Retrofit

03-04-2009, 08:45 PM	#15
NoTime Member Join Date: Jan 2009 Location: Sudbury, Ontario, Canada Posts: 1,062 Rep Power: 23	Buy and 5.niner and a SCT or a 4.7 and cut the wire Not really sure on the obd1,,,, what controls the transmission? The main PCM or is there a transmission computer or is that Trany total hydraulic

03-04-2009, 08:52 PM	#16
Saleen4971 Gerbil Lover Join Date: Jan 2009 Location: Long Island Posts: 4,885 Rep Power: 16	on OBDI AFAIK it is totally hydraulic (except O/D and TCC engagement?) unless your tlaking about the 4.0 AW4 trans, which IIRC has an external TCM

03-09-2009, 06:50 PM	#18
Saleen4971 Gerbil Lover Join Date: Jan 2009 Location: Long Island Posts: 4,885 Rep Power: 16	if you can run 87 octane fuel in teh summer w/ no issues - you have the death flash. people got all pissy that they ahd to put 91+ octane fuel in their 5.9's, so the dealers woudl flash the PCM with a tune that was 87 octane friendly.

03-09-2009, 08:42 PM	#19
Djay762 Member Join Date: Feb 2009 Location: Lake Bluff, IL Posts: 146 Rep Power: 2	haha, isnt it bad to try and run 87 and see what happens?

03-09-2009, 08:49 PM	#20
Saleen4971 Gerbil Lover Join Date: Jan 2009 Location: Long Island Posts: 4,885 Rep Power: 16	haha, its not good, but it depends on how bad it pings.

03-09-2009, 09:04 PM	#21
Djay762 Member Join Date: Feb 2009 Location: Lake Bluff, IL Posts: 146 Rep Power: 2	i should probably just do it since i still have an extended warranty, i mean whats the worst that could happen...haha, or just get a flash this summer like I was planning on.

03-09-2009, 09:40 PM	#23
Dmntxn77 Watch This.. Join Date: Jan 2009 Location: Bushland, TX Posts: 496 Rep Power: 10	I'll buy you a SCT and give you my axles, in trade for your axles.. __________________ Ive got a few Jeeps... Each with a few mods... Post Disclaimer: I dont live on planet Love-A-Lot and I dont sit in circles holding hands singing Kum Ba Ya. If you dont like my opinion just take it with a grain of salt, like I did yours, and simply move on. The sun will still rise, and it will be ok......

03-10-2009, 02:01 AM	#25
Z88Z Forum CONDUCTOR Man Join Date: Jan 2009 Location: near Boston Posts: 3,857 Rep Power: 35	Not sure but I thought if it had the death flash there was a flash version sticker on the PCM or by the info on the top radiator brace or both, and I thought maybe they stuck an Unleaded Only sticker over the Premium Only sticker on the gas filler door. Yes/no/maybe?

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