Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (http://www.jeepgarage.org/forums.php)
-   Grand Cherokee - WK (http://www.jeepgarage.org/f5/)
-   -   Question for those with MDS disabled... (http://www.jeepgarage.org/f5/question-for-those-with-mds-disabled-2741.html)

LTrainGC 09-17-2009 05:28 PM

Question for those with MDS disabled...
 
It is about time to change my spark plugs and I know that the 5.7L in stock form really needs the copper champions for the MDS to operate normally. But since I have MDS disabled I was thinking about using a platinum plug.

So, has anyone with their MDS disabled changed their plugs, and what plugs did you use?

hemi.jon 09-18-2009 08:21 AM

Re: Question for those with MDS disabled...
 
i used NGK Vpower, noticed no issues with MDS

http://myworld.ebay.com/hensonmotors

LTrainGC 09-18-2009 08:56 AM

Re: Question for those with MDS disabled...
 
Do you think it runs better than the stock coppers?

The main reason I asked is because I've read of people not using the coppers with the MDS and they get hesitation/stalling issues. But since I'm not using MDS anymore my thinking is that it won't matter anymore.

hemi.jon 09-18-2009 07:06 PM

Re: Question for those with MDS disabled...
 
ive had those in for a while, before i turned MDS off, and after. the NGKs run awesome. i love em.

Robert Palmer 09-18-2009 07:09 PM

Re: Question for those with MDS disabled...
 
Jon which exact V-power ones did you use? I am looking at a whole list of them and I don't know which ones to get. lol

08Hemi 09-18-2009 07:40 PM

Re: Question for those with MDS disabled...
 
what kind of gas mileage can you get with the MDS disabled? Or is everyone enabling the MDS when they go on a highway/freeway trip? I saw a post (can't find it or remember who) that said they were getting 20++mog witht the 93 Diablo tune and MDS disabled...was that accurate or am I totally making things up??

how does everyone like having the MDS disabled? Aside from gas mileage...how is the consistent performance? Any shifting differences or other changes?

hemi.jon 09-19-2009 09:44 AM

Re: Question for those with MDS disabled...
 
i didnt notice much of a milage change, but i also didnt care after turning it off for a while. with my exhaust i just hated the constant 4 banger noise.


i cant remember wich ones i got, it was to long back to find on my ebay list. it might be the 4306's but try emailing him, hes a good person and usually responds fast. he should point you in the right direction, i think i also put in $40 for the offer price to

justa4banger 09-19-2009 03:19 PM

Re: Question for those with MDS disabled...
 
Is there a reason not to use the stock plugs? There is no performance gain, for Normal street driving, using different plugs...

If the cost for stockers is high, then i could understand. otherwise just use what came stock... then guarenteed to not have any issues...

08Hemi 09-19-2009 03:52 PM

Re: Question for those with MDS disabled...
 
they are saying that when you disable MDS via diablo or other tuner, there is a hesitation/lag with the stock plugs b/c they are made for the MDS system...i too am a big proponent of using what came with the vehicle UNLESS you make modifications, then you have to adapt to what you have tweaked!

justa4banger 09-19-2009 07:23 PM

Re: Question for those with MDS disabled...
 
Ahhh i guess i misread that......

Doesn't the MDS thingy give you some decent MPG... or is it BS....

Robert Palmer 09-19-2009 07:25 PM

Re: Question for those with MDS disabled...
 
Decent MPG. LOL!


All times are GMT -5. The time now is 07:20 AM.

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