not the average performance question, i think

**RnEmOvr** · 03-06-2006, 04:39 PM

i know intakes/TBS and exhaust dont do much, and was wondering what kind of gain would i get with the following upgrades...

a new cam gear (if i can find it again)
new ignition kit (coil,wires,plugs,)
roller rockers
lifters (if they make upgraded ones)
jet chip
drop in filter
new exhaust from headers back

would all this give me enough power to be worth it? i know most of it alone wont help much but what piece would help the most?

**BigWaylon** · 03-06-2006, 06:42 PM

based on my experience...

you'll get zero from the JET Chip...

and nothing from the drop-in filter...

if "from the headers back" includes a new header, that might make a difference...

I'd be interested to see (if it was even possible) what you got out of a new cam and some roller rockers...

you ought to just bite the bullet and put a stoker kit in...

Greg

**RnEmOvr** · 03-06-2006, 06:57 PM

i know the chip and filter alone wont help but figured with the others it might help,

as for stroker well i couldnt afford the 6cyl how can i buy a stroker?

PackMan · 03-06-2006, 06:58 PM

I have heard just about everything with regards to the 4.0... short of stroking it, there's not much that you can do to squeek much extra out of it. It's a pretty darned good engine.

Think about this - most exhaust and intake mods are to get more airflow through the engine at high RPMs. The 4.0 produces 90% of it's torque at idle. It's not going to rev high enough to make a difference.

The jet chip is a joke.

If you want more power, re-gear. It's a Jeep, you could put a jet engine in the thing and it's still going to be slow.

**RnEmOvr** · 03-06-2006, 07:11 PM

Quote:

Originally Posted by PackMan

I have heard just about everything with regards to the 4.0... short of stroking it, there's not much that you can do to squeek much extra out of it. It's a pretty darned good engine.

Think about this - most exhaust and intake mods are to get more airflow through the engine at high RPMs. The 4.0 produces 90% of it's torque at idle. It's not going to rev high enough to make a difference.

The jet chip is a joke.

If you want more power, re-gear. It's a Jeep, you could put a jet engine in the thing and it's still going to be slow.

guess you didnt read my sig i have a 4 banger, but off road is not a major prob but keeping speed on highway is, thats biggest reason i wana mod the motor

PackMan · 03-06-2006, 07:13 PM

Quote:

Originally Posted by dzntzhellfire

guess you didnt read my sig i have a 4 banger, but off road is not a major prob but keeping speed on highway is, thats biggest reason i wana mod the motor

Nope, I sure didn't.

I know very little of the 4 banger, and have proven to be completely useless in your quest for more information.

But WTF, nice talking with you.

**RnEmOvr** · 03-06-2006, 07:16 PM

Quote:

Originally Posted by PackMan

Nope, I sure didn't.

I know very little of the 4 banger, and have proven to be completely useless in your quest for more information.

But WTF, nice talking with you.

it all good, dunno why that made me laugh

bluehdmc · 03-06-2006, 07:22 PM

I don't know much about the 4 cyl or Jet chips, but I had a 97 with a 4.0L and 3:07's and put an exhaust on it. The manifold was cracked and I got a Hypertech Programmer, (a lot of people will say it's snake oil) but my own experience seemed that hills I used to have to downshift to 4th on (on the highway) I could go up in 5th. Plus they can also read and clear codes. Just my $.02

**BigWaylon** · 03-06-2006, 10:15 PM

I actually had good results from a Hypertech on a different vehicle (dyno tested for results)...

but, to get the best gains, you'll have to run premium...

Greg

Dragonmaster · 03-06-2006, 10:50 PM

stroke or bore it. With the amount of money you'd spend on all the items listed, you should be able to a get it bored 30 over and have the engine rebuilt. From results I've heard of it works great.

bloke279 · 03-06-2006, 11:06 PM

ive heard boring it helped quite a bit. Matched with headers back syatem, and possible rockers and a cam, you might have something going. But by the time you get all that, you might as well just (x3) stroke it. Or better yet, stick a supercharger on it...

Jeepin' Rock Cl · 03-07-2006, 11:58 AM

Quote:

Originally Posted by PackMan

The 4.0 produces 90% of it's torque at idle. It's not going to rev high enough to make a difference.

Quit exaggerating. It's only like 86%.

**RnEmOvr** · 03-07-2006, 05:16 PM

what is a stroker? i not a performance guy

**JeepCreepn01** · 03-07-2006, 05:28 PM

a hemi would do the trick, lots of junk yards in middletown, go look there

Derik Schneider · 03-07-2006, 05:29 PM

When i think 4 bangers, i think Hondas, & when i think hondas I think of turbos! oh wait you want torque. nevermind for some reason i was thinking of burning rice!

03-06-2006, 06:42 PM	#2
BigWaylon tubework is cool... Join Date: Nov 2003 Location: Charlotte, NC Posts: 7,646 Profile Gallery Classifieds My Jeeps	based on my experience... you'll get zero from the JET Chip... and nothing from the drop-in filter... if "from the headers back" includes a new header, that might make a difference... I'd be interested to see (if it was even possible) what you got out of a new cam and some roller rockers... you ought to just bite the bullet and put a stoker kit in... Greg __________________ 2001 TJ 60th Anniversary Edition (details in Profile) www.carolinarockshop.com All the pics I have...including a Table of Contents

03-06-2006, 06:58 PM	#4
PackMan Registered User Join Date: Jul 2004 Location: Home of the Super Bowl XLI Champion Indianapolis Colts Posts: 911 Profile Gallery Classifieds My Jeeps	I have heard just about everything with regards to the 4.0... short of stroking it, there's not much that you can do to squeek much extra out of it. It's a pretty darned good engine. Think about this - most exhaust and intake mods are to get more airflow through the engine at high RPMs. The 4.0 produces 90% of it's torque at idle. It's not going to rev high enough to make a difference. The jet chip is a joke. If you want more power, re-gear. It's a Jeep, you could put a jet engine in the thing and it's still going to be slow. __________________ [FONT="Arial"][B]2004 Rubicon 5spd[/B] 33x1250x15 BFG MT on A/R Teflon Chamber (3.75" BS) 2.5" Suspension Lift / 1.25" BL [/FONT]([URL="http://www.dpgoffroad.com"]DPG Offroad[/URL]) [SIZE="1"][I]OME 2.5" (930 front, 942 rear), Daystar 3/4" front spacers, OME N66/N67 shocks, JKS adj track bars, JKS BBL, JKS BMML, really cool toddler booster seats, Jeeperman bumpers and rockers, IPF 968, Cobra 75WX CB, sPod switches, Cheerios under the rear seat, Skid Row engine and steering box, MORE steering shaft lift, crayon marks on the sport bar, Napa SC2928 steering stabilzer, Warn xd9000i winch, something that smells bad on the passenger side rear fender that a child probably had something to do with, HiLift jack, a .357 Magnum S&W, and an Indianapolis Colts SBXLI World Champion window sticker. [/I][/SIZE]

03-06-2006, 07:22 PM	#8
bluehdmc Registered User Join Date: Aug 2005 Location: north NJ Posts: 420 Profile Gallery Classifieds My Jeeps	I don't know much about the 4 cyl or Jet chips, but I had a 97 with a 4.0L and 3:07's and put an exhaust on it. The manifold was cracked and I got a Hypertech Programmer, (a lot of people will say it's snake oil) but my own experience seemed that hills I used to have to downshift to 4th on (on the highway) I could go up in 5th. Plus they can also read and clear codes. Just my $.02 __________________ bluehdmc North NJ 2005 Stone White Rubicon Unlimited White Jeep Club #53 1999 Harley Road King 2006 BMW R1200RT

03-06-2006, 10:15 PM	#9
BigWaylon tubework is cool... Join Date: Nov 2003 Location: Charlotte, NC Posts: 7,646 Profile Gallery Classifieds My Jeeps	I actually had good results from a Hypertech on a different vehicle (dyno tested for results)... but, to get the best gains, you'll have to run premium... Greg __________________ 2001 TJ 60th Anniversary Edition (details in Profile) www.carolinarockshop.com All the pics I have...including a Table of Contents

03-06-2006, 10:50 PM	#10
Dragonmaster Registered User Join Date: Feb 2004 Location: Calgary, Alberta, Canada Posts: 1,175 Profile Gallery Classifieds My Jeeps	stroke or bore it. With the amount of money you'd spend on all the items listed, you should be able to a get it bored 30 over and have the engine rebuilt. From results I've heard of it works great. __________________ 2002 Jeep TJ SE 2.5L Sienna Pearl, dual tops, tan interior, 31x10.5's, 1" Rubi Spring lift (yes it does boost an SE 1", ask me how I know) Work 2 Live, Live 2 Play, Play = JEEP

03-06-2006, 11:06 PM	#11
bloke279 Registered User Join Date: Oct 2005 Posts: 424 Profile Gallery Classifieds My Jeeps	ive heard boring it helped quite a bit. Matched with headers back syatem, and possible rockers and a cam, you might have something going. But by the time you get all that, you might as well just (x3) stroke it. Or better yet, stick a supercharger on it... __________________ Full Traction 3" altitude adjustment Warn front/rear bumper Hesco TBS Magnaflow CAT Back Exhaust 285/75r/16 BFG A/T on rubi wheels Clear marker lenses JKS discos [COLOR=Silver][B]Silver jeep club member #76[/B][/color]

03-07-2006, 05:28 PM	#14
JeepCreepn01 $ It's Only Money $ Join Date: Sep 2004 Location: Cincinnati,Ohio Posts: 948 Profile Gallery Classifieds My Jeeps	a hemi would do the trick, lots of junk yards in middletown, go look there

03-07-2006, 05:29 PM	#15
Derik Schneider Registered User Join Date: Nov 2005 Location: Lawrence, KS Posts: 338 Profile Gallery Classifieds My Jeeps	When i think 4 bangers, i think Hondas, & when i think hondas I think of turbos! oh wait you want torque. nevermind for some reason i was thinking of burning rice! __________________ 05' TJ Sport, 6" Long arm, 1.25" BL, with 35" MTR's,,,,& GROWING