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-   -   Wanna Make my jeep beast in the engine department ! (http://www.wranglerforum.com/f282/wanna-make-my-jeep-beast-in-the-engine-department-25706.html)

Wrangla416 01-21-2009 10:59 PM

Wanna Make my jeep beast in the engine department !
 
hey everyone i have a 2003 jeep wrangler TJ 4.0 inline 6. and i was wonderin if anyone has ideas on how to make my jeep quicker ! like in torque, speed, acceleration! any ideas let me know ! thanks .

MoA 01-21-2009 11:10 PM

stroke it =D i wanna do mine

Triple88a 01-21-2009 11:39 PM

If you want a lot.. you're not going to get it with 200 bucks intake. If you want just noticeable difference, then bigger throttle body, intake, chip and exhaust will do the trick for ya however you have to do all of them, not just 1 and then judge like many of the people that will reply in a day or two.

MR.CLIFFORD 01-21-2009 11:52 PM

take out inline 6. Put in Chevy V8.

timritchieblue 01-22-2009 05:52 AM

regear, my jeeps a rocket til 60mph

snwchris 01-22-2009 06:10 AM

If your looking for more speed, the Jeeps areodynamics are killing speed, otherwise if your looking for something bolt-on, theres a few companies that make bolt on super-chargers for the 4.0

jpdocdave 01-22-2009 07:12 AM

stroker is gonna be the best bang for your buck. and it has better torque and horsepower numbers than a normal chevy 350 you would swap in. when it comes to that motor, like already said, you can regear and it will pop off the line, and all the other performance mods will yield slightly noticeable results

emev0l 01-22-2009 07:14 AM

Quote:

Originally Posted by Wrangla416 (Post 312080)
hey everyone i have a 2003 jeep wrangler TJ 4.0 inline 6. and i was wonderin if anyone has ideas on how to make my jeep quicker ! like in torque, speed, acceleration! any ideas let me know ! thanks .

You can stroke the 4.0 into a 4.6 or 4.7, you can supercharge the 4.0, you can replace the 4.0 with another motor, fuel injected Chevy V8 is a good swap.

Those will all increase torque, speed, and acceleration.

You can change your gears in your axles but that will only help acceleration.

yjwrangler 01-22-2009 07:16 AM

i say put a 460 in it with an nv4500 and np205 and just drop the clutch at the rev limiter everywhere you go, who cares about gas anyways!!!

infamousbliss 01-22-2009 08:08 AM

Stroker Parts List
 
4.6L Low-buck, low CR "rockcrawler"

Jeep 4.2L 3.895" stroke crank
Jeep 4.2L 5.875" rods
Silvolite UEM-2229 +0.030" bore pistons
Increase piston dish volume to 30cc
8.75:1 CR
Crane #750501 192/204 degree camshaft
Ported HO 1.91"/1.50" cylinder head
Mill block deck 0.035"
Mopar/Victor 0.043" head gasket
0.058" quench height
Ford 24lb/hr injectors with stock 39psi FPR for '87-'95 engines, stock injectors with stock 49psi FPR for '96 and later engines
234hp @ 4500rpm, 311lbft @ 3300rpm

4.5L "Poor man's" simple stroker

Jeep 4.2L 3.895" stroke crank
Jeep 4.2L 5.875" rods
Sealed Power 677CP standard bore pistons
9.2:1 CR
Stock 4.0 camshaft
Ported HO 1.91"/1.50" cylinder head
Mopar/Victor 0.043" head gasket
0.088" quench height
Ford 24lb/hr injectors with stock 39psi FPR for '87-'95 engines, stock injectors with stock 49psi FPR for '96 and later engines
247hp @ 4900rpm, 300lbft @ 3500rpm

4.5L Low-buck simple stroker

Jeep 4.2L 3.895" stroke crank
Jeep 4.2L 5.875" rods
Jeep 4.0L 3.875" standard bore pistons
9.7:1 CR
CompCams #68-231-4 206/214 degree camshaft
Ported HO 1.91"/1.50" cylinder head
Stock 0.051" head gasket
0.081" quench height
Ford 24lb/hr injectors with adjustable FPR or MAP adjuster for '87-'95 engines, Ford 24lb/hr injectors with stock 49psi FPR for '96 and later engines
266hp @ 4950rpm, 322lbft @ 3500rpm

4.6L Low-buck stroker

Option 1: Same as above except:
Speed Pro H825CP +0.030" bore pistons
9.6:1 CR
Mopar/Victor 0.043" head gasket
0.081" quench height*
265hp @ 4900rpm, 325lbft @ 3500rpm

Option 2: Same as "rockcrawler" except:
Piston dish volume 22cc
9.5:1 CR
Crane #753905 204/216 degree camshaft
Ford 24lb/hr injectors with adjustable FPR or MAP adjuster for '87-'95 engines, Ford 24lb/hr injectors with stock 49psi FPR for '96 and later engines
262hp @ 4800rpm, 325lbft @ 3500rpm

4.7L medium-buck stroker

Jeep 4.2L 3.895" stroke crank
Jeep 4.0L 6.125" rods
Keith-Black Silvolite UEM-KB944 +0.060" bore forged pistons
9.5:1 CR
Crane #753905 204/216 degree camshaft
Ported big valve 2.02"/1.60" cylinder head
Mill block deck 0.020"
Mopar/Victor 0.043" head gasket
0.051" quench height
Flometrics F&B 68mm billet TB
Accel 26lb/hr injectors with adjustable FPR or MAP adjuster for '87-'95 engines, Accel 26lb/hr injectors with stock 49psi FPR for '96 and later engines.
269hp @ 4800rpm, 334lbft @ 3400rpm

4.8L medium-buck stroker

Option 1: Same as above except:
Custom 4.0" bore pistons with 1.38" pin height & 23cc dish
10.0:1 CR
CompCams #68-235-4 210/218 degree camshaft
284hp @ 4900rpm, 345lbft @ 3600rpm

Option 2: Same as Option 1 except:
Jeep 4.2L 5.875" rods bushed for 0.912" floating pin
Small Block Ford UEM-KB364 hypereutectic pistons
Mill block deck 0.017"
0.051" quench height
4.9L high-buck stroker

3.98" offset-ground stroker crank
Jeep 4.2L 5.875" rods
Small Block Chevy UEM-KB142 hypereutectic pistons
10.5:1 CR
Crane #753941 216/228 degree camshaft
Ported big valve 2.02"/1.60" cylinder head
Mill block deck 0.017"
Mopar/Victor 0.043" head gasket
0.053" quench height
Flometrics F&B 68mm billet TB
3.0" exhaust system
Ford 30lb/hr injectors with adjustable FPR or MAP adjuster for '87-'95 engines, Ford 30lb/hr injectors with stock 49psi FPR for '96 and later engines.
Custom PCM programming
300hp @ 5000rpm, 354lbft @ 3700rpm

5.0L Very high-buck stroker

4.06" offset-ground stroker crank
Jeep 4.2L 5.875" rods
Small Block Chevy UEM-KB142 hypereutectic pistons
11.1:1 CR
Crane #751111 238/248 degree solid lifter cam
Ported big valve 2.02"/1.60" cylinder head
OEM 0.051" head gasket
0.038" quench height
Flometrics F&B 68mm billet TB
3.0" exhaust system
Ford 30lb/hr injectors with adjustable FPR or MAP adjuster
Custom PCM programming
328hp @ 5250rpm, 375lbft @ 3800rpm
:firedevil:

emev0l 01-22-2009 08:08 AM

Quote:

Originally Posted by yjwrangler (Post 312166)
i say put a 460 in it with an nv4500 and np205 and just drop the clutch at the rev limiter everywhere you go, who cares about gas anyways!!!


An aluminum block Chevy V8 with a 4L60E trans behind it will be lighter and give you better gas mileage than the 4.0, well if you can keep your foot off the floorboards.

GrnTJ 01-22-2009 08:10 AM

Id just stroke the 4.0 and call it a day, well maybe a few days anyway. But a stroked I6 will give you the power and torque your looking for and everything will bolt right back where it goes.

infamousbliss 01-22-2009 08:10 AM

that should be all the stroker info you need. hope it helps....kenne bell makes a super charger kit for the 4.0. i don't have an exact price but i beleive i was told it's right around $4300. that will get you a lot motre power too.

infamousbliss 01-22-2009 08:13 AM

i really wouldn't stroke it to a 5.0. i don't know how reliable it would be. you would be taking out a lot of the inner cylinder strength. i haven't looked into sleeves yet.

GrnTJ 01-22-2009 08:20 AM

Stroking to a 5.0 is very doable but you need to have the block ultra sonicaly tested before you do that so that they can determine if your block has enough material to bore from the cylinder. That is a pretty expensive process to have it checked like that. You also need a custom ground crankshaft and other very expensive parts. But that is as big as you can take a 4.0. It will also cost you around $3500+ in parts and block work and thats if you build the whole thing yourself. Id really suggest just stroking it to a 4.7L because that is much less of a headache and easier on the wallet for sure.

infamousbliss 01-22-2009 08:33 AM

they make an after market head for the 4.0 bolting it on gives you +50 hp. only down fall it that it cost $4000. i think stroking my motor to 4.6 is and will be within my budget by the end of the year. hopefully next year during the winter season my jeep will come completely apart and i can do a ground up. clean the frame really well and get a fresh coat of powder on it then replace all the bushings with the prothene ones, degrease the motor really well and have the trans case inspected made a tera low kit installed. the possibilities are endless as you already know. i just wish i had more money so i could get the instant gratification now. lol

GrnTJ 01-22-2009 09:09 AM

Lmao, dont we all.

Reclaimer 01-22-2009 10:06 AM

Holy Hell! 300+HP THAT would be nice :D

yjwrangler 01-22-2009 10:19 AM

uhhh......... errr ...................ummm................ 460....


just remember there is no replacement for displacement:D

jtalar 01-22-2009 12:07 PM

I knew a guy that put a 360 in his rig, and let me tell you, that sumbitch would haul ass.........:punk:

MR.CLIFFORD 01-22-2009 12:14 PM

I know a guy that put a 350 in his rig, and let me tell you, that sumbitch would haul ass......

ExDementia 01-22-2009 12:45 PM

Quote:

Originally Posted by yjwrangler (Post 312237)
just remember there is no replacement for displacement:D

As much as the American in me wants to believe that, it just isn't true. Look at Ferrari's and Lambo's, a small V8 with a ton of power.

I would personally do a V8 swap over stroking the motor. The I6 already gets bad mileage for its displacement, my 4.0 OHV Ford Ranger got around 18 mpg's and it was faster than my Jeep. I have been checking around at various junkyards and you can find a good, 40K to 75K mileage Chevy 5.3 for around 900-1000$ out of a 1500 series truck. Or you can get the 350 (5.7) out of a Suburban/Express/
Silverado for about the same price... WITH A WARRANTY! Then buy a complete conversion kit for 1200-1400$ and do the labor in your garage. Go to Novak Jeep Conversions - Home and they will tell you everything you need to know. They make it very easy because they only do swaps for Jeeps and they have a huge knowledge base on their web site. Here's a very complete installation guide into a TJ, and they have them for just about every other Jeep made. Within the next couple years I will be buying a beater car and doing this swap, if your doing the work, why not go big and be happy.:D (BTW people who have done these small-block GM v8 swaps typically get around 16 mpg city... pretty good for 280+HP and 335ft-lbs TQ!!)

emev0l 01-22-2009 01:49 PM

Quote:

Originally Posted by MR.CLIFFORD (Post 312275)
I know a guy that put a 350 in his rig, and let me tell you, that sumbitch would haul ass......

Yeah, that guys jeep is pretty cool, I heard he was putting a big block in another jeep....

infamousbliss 01-22-2009 03:26 PM

screw the chevy. has that thing got a HEMI!!! i can put a 5.7 hemi in for about $5000

Triple88a 01-22-2009 08:50 PM

Quote:

Originally Posted by yjwrangler (Post 312237)
just remember there is no replacement for displacement:D

spoken like a true American. :eek:

ExDementia 01-22-2009 11:30 PM

Anyone know what kind of gas mileage you can expect from a stroked 4.7? If the stock bore gets 15 avg. I can't imagine what it would get stroked.:eek:

Giancarlo 01-22-2009 11:33 PM

yeah i was wondering this too.. whats the best stroker kit for power and gas comsumption.. what mpg can we be looking at?

Triple88a 01-23-2009 12:42 AM

from memory Spanky here has a 4.7.. i believe he said he gets 12mpg on a good day but there are also members that get that with the stocker so...

Giancarlo 01-23-2009 01:03 AM

ohh i figured with more and proper gearing the engine/trans will work less which will turn our a lot more mpg i was hoping something like 16 to 19 mpg

ExDementia 01-23-2009 05:34 AM

I'm willing to bet that a 5.3 GM or a 5.2 Dodge will get significantly better mpg's. Plus you'll have a V8!! What kind of American would turn that down!?!?


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