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-   -   Do i need a tune? (http://www.jeepgarage.org/f6/do-i-need-a-tune-8422.html)

NHWK05 04-09-2010 08:52 PM

Do i need a tune?
 
I have my custom side exhaust with a magnaflow style muffler, Stock Air box with K&N filter, custom air box to TB plenum tubing, removed the air intake cover behind the grille and in a week or so i will have an FRP Ported TB.

Will i need to save up for a tune to get my jeep to run right or will it be ok or learn itself?

05 4.7 V8.

Scottina06 04-09-2010 09:17 PM

Re: Do i need a tune?
 
superchips or sct

robpp 04-09-2010 09:24 PM

Re: Do i need a tune?
 
for those mods the superchips will be plenty. besides performance, I get at least 1 more MPG than before.

Joe in PA 04-09-2010 09:28 PM

Re: Do i need a tune?
 
Do you "need" a tune? Probably not as the engine will most likely adjust to the mods. Do you "want" a tune? Only if you really want to maximize the benefits from the upgrades. Investing money in those mods without also budgeting for a tune is probably not the best way to go about things if you wish to get the most bang for the buck.

NHWK05 04-10-2010 07:42 AM

Re: Do i need a tune?
 
Thanks Guys, this is exactly what i was looking for.

FlyinRyan 04-11-2010 12:01 AM

Re: Do i need a tune?
 
Do you need one? No.

If it were my truck, I wouldn't go any further with mods on Superchips....Others can and probably will disagree. They only add so much fuel in their tunes to account for users adding mild modifications. Not their fault, but that's the way tuning works.

Stick to the stock tune, knowing your personal situation right now I'd save your money and wait till you can do it all correctly.

NHWK05 04-11-2010 02:06 PM

Re: Do i need a tune?
 
Quote:

Originally Posted by Sleepy4.7 (Post 186746)
Do you need one? No.

If it were my truck, I wouldn't go any further with mods on Superchips....Others can and probably will disagree. They only add so much fuel in their tunes to account for users adding mild modifications. Not their fault, but that's the way tuning works.

Stick to the stock tune, knowing your personal situation right now I'd save your money and wait till you can do it all correctly.


Cool. That works for me. I was actually hoping to get this answer because i did not want to install any thing else that would require more money to be spent to stop from having bad side effects.

FlyinRyan 04-12-2010 12:00 AM

Re: Do i need a tune?
 
Quote:

Originally Posted by NHWK05 (Post 187021)
Cool. That works for me. I was actually hoping to get this answer because i did not want to install any thing else that would require more money to be spent to stop from having bad side effects.

I hear ya, you'll be just fine. The NGC PCM doesn't adapt as well as the older JTEC systems. After the point of intake/exhaust/TB, the next mod (be it cams, manifold, etc) should be done in conjunction with a custom tune. Necessary? Not entirely, but it'd be a very good idea at that point.

I have mostly the same modifications (plus a few custom tweaks) plus the 08 manifold, all with a stock JTEC PCM and on cold starts/warm-up operation the PCM is not all that happy.

maxst2 04-12-2010 11:09 PM

Re: Do i need a tune?
 
If anything...superchips can read and clear problem codes :)

FlyinRyan 04-12-2010 11:13 PM

Re: Do i need a tune?
 
Quote:

Originally Posted by maxst2 (Post 188100)
If anything...superchips can read and clear problem codes :)

Not really useful here, the stock PCM is pretty resilent from throwing misfire codes even with extensive modifications.

Does SC do any datalogging on the 4.7s? I know they do on the Hemis......

maxst2 04-12-2010 11:28 PM

Re: Do i need a tune?
 
ah yeah... if your putting on boost and goodies that go with it, superchips isnt good enough for sure.

But for the general stuff it'll be a handy tool to have Id think.


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