- #16 of 59
-
Re: Excellent FE, indeed... [xtec]
by batista
-
Jun 19, 2007 (7:52 pm)
-
|
|
Replying to: xtec (Jun 19, 2007 6:51 pm)
Why premium? Do you notice a difference?
When I purchased my car the dealer filled the tank up (cheapskates) with regular and I wasn't happy about it because I had read that these cars require mid-grade. Have been using 89 almost all the time.
I tried a tank of 92 and it felt a bit smoother but no difference in fuel economy. How about you?
|
- #17 of 59
-
Re: Excellent FE, indeed... [batista]
by discgolfer99
-
Jun 20, 2007 (8:27 am)
-
|
|
Replying to: batista (Jun 19, 2007 7:52 pm)
I used to put 89, since the owners manual said too. But when gas went "RIDICULOUS" (here is So. Cal), and I had also read some 'expert' say you only need to use >87 if your car "pings" with 87, I tried the 87, and found no noticable difference or pinging...
At least gas is back under $3 ---> YEAH !!
|
- #18 of 59
-
Re: Excellent FE, indeed... [batista]
by xtec
-
Jun 20, 2007 (10:10 am)
-
|
|
Replying to: batista (Jun 19, 2007 7:52 pm)
Yes I notice the differance,and I seen hot rod books which ran a car on all three grades, and premium had the best performance.The 3.5 is a high output engine,so you should use nothing less then 89 octane.If you have a engine thats not high output,premium would be a waste.I do recommend going up one grade to get better mileage,and performance.I proved it with my wife's 03 Mazda Tribute.It calls for regular,but I put in mid-grade.This is the 3.0 liter V6.Its mileage is rank 19city from the factory.I'm getting over 20 with A/C.little over 21 without A/C.Plus higher grades have more detergants to keep the inj. clean.And STP fuel Inj. cleaner every 4k miles.If you have a K&N get rid of it.It dragged my mpg and performance down.The stock filter is a high air flow and I found it was better then the K&N.
|
- #19 of 59
-
Headers for the 3.5L Charger
by batista
-
Jun 20, 2007 (11:37 am)
-
|
http://estore.websitepros.com/802805/Detail.bok?no=1210
Gains:
9 RWHP
17 RWTRQ
Xtec what do you think? Worth getting?
|
- #20 of 59
-
Re: Headers for the 3.5L Charger [batista]
by xtec
-
Jun 20, 2007 (12:00 pm)
-
|
|
Replying to: batista (Jun 20, 2007 11:37 am)
It looks pretty good and good price.Add that to your duals and you will see a improvement,and it should help with the MPGs.I'm done putting money in mine,but if you have the bucks i think it would be beneficial.Let me know if you do it.The duals give you 10 HP and 6lbs. of torque.Add the headers your talking about 270 horse,not bad.
|
- #21 of 59
-
Re: Headers for the 3.5L Charger [xtec]
by batista
-
Jun 20, 2007 (1:39 pm)
-
|
|
Replying to: xtec (Jun 20, 2007 12:00 pm)
Some R/T owners have reported error codes showing up when having headers installed. Not sure if its worth the trouble.
Also, I am not a mechanic like yourself so I would have to pay for the install.
I will consider it when other owners are satisfied with their results.
Also, a few people have superchargers installed w/3.5L engine. A manufacturer in Florida claims 65 rear wheel horsepower increase for $2500.00. Not bad but not worth it because it would void your warranty.
|
- #22 of 59
-
Re: Headers for the 3.5L Charger [batista]
by xtec
-
Jun 20, 2007 (2:58 pm)
-
|
|
Replying to: batista (Jun 20, 2007 1:39 pm)
I'm retired now with a bad back,so I would have to pay to get the headers put on.Thats whats kills me,I have to pay for things I use to do for a living and now only make sure I don't get ripped off ,like couple places tried to do to me,but caught them ripping me off.I still have the knowledge.As far as the codes showing up, they would have to reprogram the computer.Advance the timing,and adjust the fuel ratio.I would like to know how the 3.5 with the supercharger runs.By the time you put all that money into it,you could get the R/T.
|
- #23 of 59
-
Re: Headers for the 3.5L Charger [xtec]
by batista
-
Jun 20, 2007 (4:35 pm)
-
|
|
Replying to: xtec (Jun 20, 2007 2:58 pm)
By the time you put all that money into it,you could get the R/T.
A dealer in my area had a brand new 06 Charger R/T with the road and track package for $10K off MSRP. However, he wanted to charge me $12K plus taxes for trading up from my 06 SXT. I told him forget it.
I am happy with my SXT but was curious as to how much it would have costed to upgrade.
Sorry to hear about your bad back.
I could afford the $2500 supercharger cost but the reliability would probably be affected. Don't need the hassles for some fun.
|
- #24 of 59
-
Re: Headers for the 3.5L Charger [batista]
by xtec
-
Jun 20, 2007 (8:37 pm)
-
|
|
Replying to: batista (Jun 20, 2007 4:35 pm)
That was A bad deal.I'm very happy with my SXT.The duals helped alot,and it sounds nice.I had my car a year and a half and glad I have it.Its the best Mopar next to my '68 Road Runner I ever had.I'm also happy with the MPGs.I think a good deal would be your car plus 5k.Thanks for your concern about my back.I worked on one to many vehicles.
|
- #25 of 59
-
Re: Excellent FE, indeed... [xtec]
by discgolfer99
-
Jun 22, 2007 (12:54 pm)
-
|
|
Replying to: xtec (Jun 20, 2007 10:10 am)
xtec, I remember when I put the dual exhaust on my SXT, and posted here, mentioning that I also had a K&N filter on order. I believe you stated then, that (at least in your opinion) the K&N negatively effected the MPG and performance. Having already spent the $$, I had to put it in when I got it, and I always felt afterwards that performance was worse, although I think I was somewhat in denial...
Anyway, that was some time ago, and after you posted this again on Wednesday, I went home, dug out the old filter, which I had kept, and put it in.
I TOTALLY agree that the K&N had a NEGITIVE effect on my performance. I was always dissapointed when I would "STEP ON IT", and there was a long hesitation before anything kicked in, and even then, it was "disappointing".
Now with the standard filter back in there, I definitly notice a difference for the better. What a "crock" that filter is...
Thanks for the advice...
|
![[F]](http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/media/townhall/webxicons/site.gif){kind=small}
Forums
Sedans 
