This answered a lot of questions I had, thank you!

I heard that you don't really need a tune unless you plan on adding more than an exhaust and a CAI, is that true? Because those are the only two mods I plan on installing.

Thanks again!

 

It it were me with just a CAI/Cat-Back, I'd get the Diablo Predator and do the 91 octane CAI tune and use there shifting parameters. You'll run cleaner, more efficient and you will gain HP and get better mileage.

As far as I understand it, the answer is yes and no.

You don't technically *need* a tune with those mods - as in you're not going to be making such drastic changes that would cause the engine to run rich/lean and grenade on you. However, you can benefit from a tune even flat out stock. But, the more mods you have -- the more the tuner can usually get out of them.

Straight up!

If you are interested in maximizing the return on your expense of a CAI and an Exhaust. Why not get a tuner?

Just to have the abilty to add better shifts was a big thing for me.

The stock tunes offered by Diablo are pretty good....I took almost .5 off my ET and added about 3 MPH.

Great info, Thanks for the real time data.

yea if you dont get a tune, you are basically wasting your money if your expecting increases out of the exhaust and CAI. like venthos said though, you dont "need" a tune because those mods will not cause any damage, but you certainly should consider it

Good info right there!

Gotcha, thanks for the info.

How much can you expect to pay for a CMR tune?

Fo a full CMR tune you would expect to pay between 500-750.00.
Im talking a full tune from a new file. This is part throttle tuning which is daily driveability and then finally WOT tuning on the dyno. . Im not talking about email tune either.

It's not cheap - at least a few hundred. But if you're only doing CAI + Catback you might want to just use a canned tune. They have a canned 93 octane + CAI tune that comes on the Predator tuner. You may want to wait for when you invest more money in mods to spring for the CMR tune.

Since I am getting my Challenger so close to Winter I am not even bothering with a tune off the bat. No use for extra power in snow. I'll be getting the Mopar CAI dealer installed and that's it. When spring rolls around I'll plan on Predator + catback + headers + cmr tune.

Canned tune is great for just CAI/Exhaust.

Excellent, thanks. Valuable info right there, for a newbie such as myself

Right on! Glad to have helped out.

 

As far as I understand it, the answer is yes and no.

You don't technically *need* a tune with those mods - as in you're not going to be making such drastic changes that would cause the engine to run rich/lean and grenade on you. However, you can benefit from a tune even flat out stock. But, the more mods you have -- the more the tuner can usually get out of them.

 

If you are interested in maximizing the return on your expense of a CAI and an Exhaust. Why not get a tuner?

Just to have the abilty to add better shifts was a big thing for me.

The stock tunes offered by Diablo are pretty good....I took almost .5 off my ET and added about 3 MPH.

 

yea if you dont get a tune, you are basically wasting your money if your expecting increases out of the exhaust and CAI. like venthos said though, you dont "need" a tune because those mods will not cause any damage, but you certainly should consider it

 

Gotcha, thanks for the info.

How much can you expect to pay for a CMR tune?

 

It's not cheap - at least a few hundred. But if you're only doing CAI + Catback you might want to just use a canned tune. They have a canned 93 octane + CAI tune that comes on the Predator tuner. You may want to wait for when you invest more money in mods to spring for the CMR tune.

Since I am getting my Challenger so close to Winter I am not even bothering with a tune off the bat. No use for extra power in snow. I'll be getting the Mopar CAI dealer installed and that's it. When spring rolls around I'll plan on Predator + catback + headers + cmr tune.

 

Excellent, thanks. Valuable info right there, for a newbie such as myself

 

Just for info: We charge $140/hr for a non-PPP equiped car, $120/hr for a car running Power Ported Performance parts.

Tim C

 

Do any of the performance tunes void your warranty?

 

Well, let's just say if a Chrysler tech notices you have a custom tune on there -- they won't be doing any warranty work on your vehicle. Tuners do allow you to flash back to stock at will, and it only takes a few minutes, but no two ways around it -- that's basically warranty fraud if you reflash it to get warranty work if you know the tuner contributed to the problem.

But if all you have on the car is a CAI and Cat-Back, would reflashing back to stock really be fraud? Because you could have left the car stock and not grenaded the engine, and I can't see the stock predator tune really doing anything that would cause the motor to blow. Now if you had cams, headers, and a bunch of other engine work, I can see that would be a no no.

 

Well, let's just say if a Chrysler tech notices you have a custom tune on there -- they won't be doing any warranty work on your vehicle. Tuners do allow you to flash back to stock at will, and it only takes a few minutes, but no two ways around it -- that's basically warranty fraud if you reflash it to get warranty work if you know the tuner contributed to the problem.

 

For folks that missed it.

 

It looks like this thread has been closed for a while so I may be too late to ask this, but I am wondering where the closest place would be for me to look for a CMR tune. I am in Canada, London Ontario to be exact - which is 1/2 way between Detroit and Buffalo for the geographically handicapped. I have the 500 series 2008 SRT 8 challenger with CAI, 180 stat and diablo tuner. It seems to me that the CMR tune is probably the next step to make the most of these modest performance upgrades.

 

Call Diablo and ask them for a Canadian Tuner name.
C-

 

Cant these things be custom tuned, without the car?

I mean If I say I have JBA shorties, High flow Cats, MBNP cat back, and a Mopar CAI. Wouldnt that be enough to know for a better than "Canned" tune?

Given that-
ALL 5.7's produce exactly the same HP (Stock)
Should already know what tweaks to do for a Mopar CAI and Cat back exhaust.
JBA Shorties produce X amount of power with a CAI and a cat back.
OR Dynatech Long tubes produce X amount of power with a CAI and a cat back.

I mean those are basic Bolt on Mods that anyone can do. But i would think there would be a little more tweaking (get more HP) than the basic canned tune that comes with the predator. Maybe a Canned tune 2.0?

I totally understand the logic in Dyno tuning the vehicle when its had head work done, Cams, and valve work etc. But with all bolt on items there should be a kind of standard tune.

If your 2009 5.7 has X use tune 777.1
If your 2009 5.7 has X AND Y, use tune 778.1
If your 2009 5.7 has X,Y,AND Z use tune 779.1

I mean these tunes could be sold without a car even going to a shop. Just emailed! No expensive Dyno time, so they would be MUCH cheaper than a "Custom" tune that includes Head-work and what-not.

I think that HHP had something like this with their predators. When it was paired with a bolt on.

Am I making sense here or am I way off base?

 

I understand your theory.

In the real world it probably would not work.

1) not all motors produce exactly the same HP in stock trim.

2) the tuner would have to find cars with each of the products you mentioned.

3) there are differences in your geographical loctation (elevation, average temp & humidity)

Personally I like the concept.....I just do not know the result.

I do know with the CAI canned 93 tune, it worked.......how many other variables can be programmed?

 

I figured It was too easy to work. But wouldn't it be cool if Diablo started a database of some sort?

I mean input you elevation, average temp, your mods and presto!! You have your tune!

The Jetsons probably have something like that lol.

 

Theres are way to many variables for that to work, and again IMO there are only maybe 6 tuners out there Id let tweak my tune. Another big item guys is the "Mopar TCM", Weve all been running them for awhile and it takes care of the weak shifting the stock srt's come with. With Diablo's gear ratio selector you can choose the 3.06 gears and the TCM works great, for 5.7's it works with the 2.82 gear selection. The Mopar TCM will shift at a higher point and also auto hold a gear. Also you get 1-5, then "D" in paddle mode. Theres also a TCM option's from Josh at HHP.

 

Dont forget for those who do like to do the "quick adjustments" that Diablosport has free software you can download on their website that allows you to datalog as well.

Another thing that may be helpful is the CMR Tuning facilities map located on Diablosports website...

DiabloSport :: Gas and Diesel Tuning Systems