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  #1  
Old 07-12-2011, 10:41 AM
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3.7l performance love

Figured as the 3.7L is the underdog of the engines, and limited to after market support, it would be nice to have one thread of all available performance parts for our wk's. This will be a on goin work in progress with updates, and I need your help as im not god and don't know all.

PLEASE ADD TO THE LIST!

AND REMEMBER,... ALWAYS SUPPORT JEEP GARAGE VENDORS!

Throttle body:
fastman- thefastman.com
Flyinryan- flyinryanporting@gmail.com

Tb spacer:
airaid poweraid, part # 310-618 - airaid.com

Intake Manilfold:
FlyinRyan- flyinryanporting@gmail.com

Intakes:
K&N- FIPK intake, part # 63-1545 - knfilters.com
K&N- 77 series, part # 77-1545kp- knfilters.com
Injen- pf series, part # pf5010 - injenairintakes.com
AirAid- part # 310-205 - airaid.com

Tunning/chips:
SCT- email Hemifever@aol.com
SCT- FlyinRyan- flyinryanporting@gmail.com
Jet- stage 1, part # 90701 -jetchip.com
Jet- stage 2, part # 90701S -jetchip.com
Hypertech- power- part # 52001 - hypertech.com
Hypertech- econ- part # 53001- hypertech.com

CYLINDER HEADS:
Knolton thunder- economy- part# knth1-3.7l - Airram.com
Knolton thunder- race - part # knth2-3.7l - Airram.com

Pulleys:
ATI- Super Damper- OEM size (lighter) - part# 918429- atiracing.com
ATI- Super Damper- 25% UD - part# 918428- atiracing.com

Thermostat:
Jet- powertech 180 degree- part# 10177 jetchip.com

Ignition: (anything? msd??)

FUEL Injectors:
Airram- part # arpfms037- Airram.com

Headers:
JBA - jbaheaders.com

Exhuast:
Magnaflow- part # 16834- magnaflow.com
Gibson- part # 17404- gibsonexhuast.com
Gibson- part # 617404- gibsonexhaust.com
Dynomax- part # 19421- dynomax.com

Transmission:
Torque Converter:
APS- part # 37conv- apsprecision.com


Brakes:
Srt8 brakes (see sticky srt-8 conversion parts, about 6 pages deep)
See Brakewarehouse.com for a huge selection of oem, cross drilled/slotted
rotors and pads

Suspension: (i know there is alot more, add!)
See Sticky: The complete (05-10) WK Grand Cherokee suspension thread
Daystar- daystarweb.com
Rock Krawler-
Superlift-
OME-
Rough Country- Roughcountry.com

Diffs: (anyone know diffs, axles or ring and pinions)
Eaton- Detriot Locker, part # 187C179A

Diff Cover:
RuffStuff- part # 825COV- ruffstuffspecialties.com
Riddler - part # RD825- ridlermfg.com
Crane part # 8.25C- cranehiclearance.com
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  #2  
Old 07-12-2011, 08:23 PM
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Re: 3.7l performance love

Nice start. I have nothing to add, except I'm excited to see this list.

Anyone used any chips/tuning for any period of time...
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  #3  
Old 07-13-2011, 05:40 PM
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Re: 3.7l performance love

Those headers dont fit, that was confirmed awhile back Im pretty sure.

Uhmm as far as upgrades goes you got a lot of it. Also, a lot of SRT stuff can bolt directly up to the Laredo for some nice mods.

SRT Brembo brakes (see Scotts thread) or even BIG brake kit from them
SRT Bilsteins
SRT springs/aftermarket


Ignition wise there is nothing beyond the scope of what the tunes can do. Dont think you'd be able to swap the entire ignition system without some serious computer/programming stuff like with anything but again with enough time/$ anythings possible haha
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Old 07-13-2011, 10:14 PM
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Re: 3.7l performance love

Change sctflash.com to Hemifever@aol.com (the best SCT tuner ever! )

Flow Master for exhaust
Www.TheFastman.com for ported throttle bodies

As far as JBA goes, I contacted them awhile back and they told me they haven't had an 05-10 WK in the shop to test fit. If anyone lives close to the JBA HQ you should call!!!! They told me summit racing offers a full refund(less shipping), which they do if it doesn't fit, but I don't have the funds or the time to mess with it all if it won't even fit.
Best they told me was take the picture with me and compare to the manifolds on the jeep and see..... Might fit with custom exhaust modding. DEF wont bolt up to the stock Y-pipe.
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  #5  
Old 07-13-2011, 10:22 PM
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Re: 3.7l performance love

SCT Tuner for the 3.7L!!! ohhh yeah!!

For SCT tuner info
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Old 07-15-2011, 03:46 PM
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Re: 3.7l performance love

Here some other info on the Wa580 all the 3.7s have:

TRANSMISSION UPGRADES:

if your not lucky to have the dipstick for the trans (not all wa580 came w/ them I got lucky will save you $ so you can do the trans swap w/o going to the dealer or just make your own ds i guess?

http://www.lxforums.com/board/f325/w...10/index3.html

Also for trans performance blue tops increase shift speed and firmness, easy swap into the Valvebody if you have some tools and some time

http://www.mbworld.org/forums/c36-am...er-shifts.html

Also some info on getting TCM tuning instead of blue tops. Been debate over this, some go for tuning other blue tops, both seem to have their pros and cons like anything.

I remember awhile back on the red site a guy offered that service for NAG, I think if you look online you can find the tuning to help improve shift quality overall

http://www.chargerforums.com/forums/.../t-133555.html
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Old 07-16-2011, 08:50 PM
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Re: 3.7l performance love

sum updates added (part #'s and sct tune). soontobsrt, ill go through those threads when i got time and pull out some info to add. thanks!

any one know what diffs the 3.7 have up front and out back. 8.25" in rear?
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Old 07-18-2011, 01:15 PM
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Re: 3.7l performance love

FRONT:
Differential Type 1: Conventional (C200F)
Availability: Standard on 4 x 4 models with 3.7-liter and 4.7-liter engines
Ring Gear Diameter: 7.9 in. (200mm)
Axle Ratios: 3.07:1 (3.7-liter); 3.73:1 (4.7-liter)

REAR:
Differential Type 1: Conventional (C213R)
Availability: Standard with 3.7 and 4.7-liter engines
Ring Gear Diameter: 8.3 in. (213mm)
Axle Ratios: 3.07:1 (3.7-liter); 3.73:1 (4.7-liter/5.7-liter)
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Old 07-19-2011, 01:55 PM
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Re: 3.7l performance love

Updated (diff and covers)

soontobsrt, i read the tranny post. i dont follow. i know MB and Chrysler are pretty much the same but is our tranny the same as the E46 (or whatever model MB in the thread)
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Old 07-19-2011, 04:47 PM
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Re: 3.7l performance love

Quote:
Originally Posted by ms2020 View Post
Updated (diff and covers)

soontobsrt, i read the tranny post. i dont follow. i know MB and Chrysler are pretty much the same but is our tranny the same as the E46 (or whatever model MB in the thread)
sorry should have clarified - but yes those are the same blue tops. The c63 has 7 speed though not the nag but the thread was reffering to that becuase its a common benz transmission i guess, i was just listing for the part # not the actual car haha

but here better link of right ones. Not sure if this is a good price as of now? Awhile back I think they were like $200 for a whole set but it was awhile ago is I could be wrong

http://www.chargerforumz.com/showthread.php?t=104447

another place with them:
http://moesperformance.com/index.php...ducts_id=12577


heres red site link, shows a guy who has had them 20k miles no issues, not the thread i thought it was

http://www.cherokeesrt8.com/forums/s...d.php?p=745430

hope this clarifies haha
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Old 07-19-2011, 07:31 PM
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Re: 3.7l performance love

updated some stuff
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Old 08-02-2011, 10:42 AM
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Re: 3.7l performance love

You forgot me.....
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