Go Back   Jeep Garage - Jeep Forum > Modifications & Enhancements > Performance Modifications

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 09-28-2010, 12:13 PM
baronvonhavok's Avatar
Member
My Jeep: 2004 4.7L WJ
 
Join Date: Jun 2009
Location: Stamford, CT
Posts: 139
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2001
baronvonhavok is on a distinguished road
Send a message via AIM to baronvonhavok
ASP Underdrive Pulley

I don't know if this has already been posted but I this...

http://www.aspracing.com/mopar.htm

Was wondering if that would work on our engines too, particularly the 4.7L. I know Airram has the ATI Harmonic Dampner with the underdrive pulley so maybe he'll be able to chime in.

thoughts?
__________________

__________________
Paul
Silver 04 4.7L WJ


Reply With Quote
  #2  
Old 09-28-2010, 12:22 PM
White WK Swagga's Avatar
Senior Member
My Jeep: 2009 3.7L WK
 
Join Date: May 2009
Location: East WishAN*ggaWoods, NY
Posts: 14,384
Thanks: 8
Thanked 5 Times in 5 Posts
Rep Power: 16495
White WK Swagga has a reputation beyond reputeWhite WK Swagga has a reputation beyond reputeWhite WK Swagga has a reputation beyond reputeWhite WK Swagga has a reputation beyond reputeWhite WK Swagga has a reputation beyond reputeWhite WK Swagga has a reputation beyond reputeWhite WK Swagga has a reputation beyond reputeWhite WK Swagga has a reputation beyond reputeWhite WK Swagga has a reputation beyond repute
Re: ASP Underdrive Pulley

Yup Mike (Downstate) has it on his SRT. Maybe not that brand but same thing.
__________________

__________________
The fallen......

09 WK Limited, 3.7 w/ Nav (MYGIG) W/ ipod, Single Kicker 12" CVX sub-ZX750 amp, 20" chrome SRT reps,front & reat SRT sway bars, V-LED interior & license plate, LED cargo light, Dual LED turn bulbs, painted headlight reflector covers, 5k HID lows, 3.5k/5k fogs, K&N Drop in filter, Shorty antenna, Tinted Tails & 3rd brake light, debadged.....
Reply With Quote
  #3  
Old 10-17-2010, 08:18 PM
Member
My Jeep: 2011 5.7L WK2
 
Join Date: Jun 2009
Location: HOMESTEAD FLORIDA
Posts: 155
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2229
AIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond repute
Re: ASP Underdrive Pulley

The brand is EVERYTHING.

You need to do some research on Harmonic balancers and how they work in order to make the right decision. I will try to sum it up in a nut shell...

Our engines come with a one piece harmonic balancer with the Pulley being part of it. So if your changing your pulley you must also change your balancer.

The ASP is a PULLEY... that’s its sole intention. BUT in order to offer you this pulley they must also include a new balancer. The ASP balancer is heavier than stock and it also does not dampen as well as your factory stock Damper. So you are stepping down in engine reliability in order to run an under-drive pulley. So the primarily product is the pulley and the Asp lead damper is designed solely to mount that pulley to it.

The ATI Super damper is just that... Its a SUPER Damper first! The ATI Superdamper will eliminate engine vibrations that tend to wear your bearings and brake parts over time. This Super damper will protect your engine throughout the RPMs where the factory and ASP pulley simply cannot. No matter if you like to get on it once in a while or daily, the ATI Superdamper is a wise investment that will protect your engine no matter how you drive.

Our 6" ATI damper weighs only 3.9lbs, while the factory weighs over 10lbs! After I had installed the ATI damper I noticed ir ran noticably smoother from idle all the way through the RPM range past 6500RPMs.

If your wanting a true performance part... one that will protect your engine & offer the 25% under drive option the ATI Super damper is the one you should seriously consider. They Run the ATI Dampers on the top Nascar race cars and on many dragsters... Click here for a direct link to the ATI website FAQ section...

SPEED SAFE, NICK
Reply With Quote
  #4  
Old 10-19-2010, 12:02 PM
Member
 
Join Date: Dec 2009
Posts: 229
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1899
amw5 is on a distinguished road
Re: ASP Underdrive Pulley

I'll have a Powerbond pulley (they make the SLP unit) availlable for the 5.7L/6.1L in the next couple of weeks. i'm going back to stock, for my fan is delayed more than I would like due to it being hydraulic and I'm in stop and go traffic all the time. It has never overheated, but I don't want to take the chance. Performance is very noticeable over stock...quicker off the line. It is the best out there and certified.

PM me if you're interested...
__________________
'06 Overland: Performance Suspension, AEM Intake, Eagle Intake Manifold, BT Catchcan, Inertia Performance Heads, SRTMax Cam, Non-MDS Lifters, Custom Pushrods, American Racing Longtubes w/cats, Flyin Ryan 84mm TB Prototype, Paramount Performance Billet 4000 TC, PP Stage II Modified Valve Body, PP Certified Flex Plate, CMR Tune, and Stock SRT catback...
Reply With Quote
  #5  
Old 10-19-2010, 01:19 PM
Long Live the Graphite Ghost

 
Join Date: May 2009
Posts: 13,395
Thanks: 54
Thanked 131 Times in 113 Posts
Rep Power: 542541
robpp has disabled reputation
Re: ASP Underdrive Pulley

a hemi one wont fit a 4.7 ^^^^^^^^^^^





i understand why a better balancer is good. not sure that is worth 500 and my jeep is a 99.9 % street vehicle. add a few HP via the under drive and maybe its a worthwhile mod. and the ATI is 25% underdrive for the 4.7; way more than most of their other chrysler serp pulleys. why so much?

what kind of changes can I expect in daily driving with a 25% under pulley??? PRO AND CON please.
__________________
Reply With Quote
  #6  
Old 10-21-2010, 12:14 PM
Member
 
Join Date: Dec 2009
Posts: 229
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1899
amw5 is on a distinguished road
Re: ASP Underdrive Pulley

Much quicker response off the line, slight drag in steering when parked and heavy feeling when moving (I actually like the heavier feel when cruising), stereo may not be as loud (aftermarket/larger amp only), less wear and tear on your pumps, better times at the track...
__________________

__________________
'06 Overland: Performance Suspension, AEM Intake, Eagle Intake Manifold, BT Catchcan, Inertia Performance Heads, SRTMax Cam, Non-MDS Lifters, Custom Pushrods, American Racing Longtubes w/cats, Flyin Ryan 84mm TB Prototype, Paramount Performance Billet 4000 TC, PP Stage II Modified Valve Body, PP Certified Flex Plate, CMR Tune, and Stock SRT catback...
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
3.7L & 4.7L ATI Harmonic Damper & UNDERDRIVE PULLEY AIR_RAM Performance Modifications 29 02-17-2010 12:01 AM
HELP underdrive pulley downstate Performance Modifications 16 11-15-2009 02:54 AM
SLP UnderDrive Pulley... Frankie Performance Modifications 16 08-31-2009 08:16 PM
SLP Underdrive Pulley blackpepper Performance Modifications 2 06-02-2009 11:23 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:53 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community