['88Scrat]

Hey guys this is my first real post so please be gentle...

I'm looking for ways to increase the speed and throttle response of my Charger (2014 R/T 100th Anniversary Edition). Don't get me wrong, its plenty fun now but I'd like to make it to where it stands out from other R/T Chargers performance wise. I don't need an SRT8 (or I would have bought one) but something with a little more get up and go then the average off the line R/T would be awesome. Say a goal of 400ish HP.

This is first car I've ever owned, everything else has been a truck or Jeep with 35" or bigger tires.

I assume there is some interchangeability, for example a more free flowing exhaust (Dynaflow or Flowmaster?) and intake (I've read good things about the LMI CAI on these forums).

The gearing I think I'll leave alone because it feels pretty tall.

But I'm open to other ideas. Plugs, Hypertech Programmer?

Thanks for the advice and again...
Be gentle, first post :laugh2:

 

[Mean R/T]

Welcome to the forums I have a 100th anniversary rt to. And I have a lmi intake exhaust and diablosport tuner car feels pretty good. You should get the diablo instead of the hypertech

 

[Devils6]

bwahahahaha he said be gentle.


LMI Intake for sure! i have one and would not buy anything else.

browse youtube or if you know anyone else with a charger or challenger with an upgraded exhaust find the one you like. a lot of people i see talk about the same exhaust kits all the time. you have solo performance, SLP (which i have), magnaflow, pypes, etc. i highly recommend long tube headers ( i have KOOKS ). if you plan on building up to nitrous, turbo or supercharger with a cam upgrade.

lastly.... Diablo intune or trinity... Prefer trinity.

Marylandspeed.com is your friend for all upgrades.... cant beat the prices.

cams.... inertia motorsports and highhorse Performance

shop around, take your time and do it right the first time.

 

[tacamo01]

Good advice^^ If 400 hp at the crank is your goal, you can get that with a CAI, Catback with High Flow cats, Diablo tuner with a custom tune. Here is my stock dyno and then dyno's with the mods.
( I had K&N CAI, JBA HF's and Dynomax superturbo catback at the time)

Run 2 is Diablo factory 87 tune with mods (No hp gains expected)
Run 5 is Johan (Diablotoona) custom tune with mods

 

[ert]

A catch can and upgraded throttle body should theoretically give more hp, although I'm not sure how that translates to actual gains. These are pretty easy installs though.

 

[Devils6]

A catch can doesn't do anything to increase any HP. Just catches oil vs it going into your plenum


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[702RN]

Listen to tacomo01. Those few mods are relatively inexpensive and will net you decent gains. I have a similar set up (although tacomo01's set up is better now) and it's noticeably quicker and torquier than it was stock.

 

[Devils6]

With the supporting mods I just mentioned... Yea, 400 is doable!


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[Ddaddy]

A catch can and upgraded throttle body should theoretically give more hp, although I'm not sure how that translates to actual gains. These are pretty easy installs though.

Ummm...no.

Neither of those provides any HP gain at all and the TB is just a waste of money unless you substantially increase the engine displacement with a stroker build.

 

[ert]

Ummm...no.

Neither of those provides any HP gain at all and the TB is just a waste of money unless you substantially increase the engine displacement with a stroker build.

Right, they both really have no practical impact on performance. A catch can will theoretically maintain the octane rating of the fuel by keeping oil vapor out of the combustion. What that really means in terms of HP? Then again, the claims of HP gains from CAI and exhaust upgrades are also anecdotal. I think nothing short of a supercharger on these engines provides any definitive improvement.

 

[Ddaddy]

Right, they both really have no practical impact on performance. A catch can will theoretically maintain the octane rating of the fuel by keeping oil vapor out of the combustion. What that really means in terms of HP? Then again, the claims of HP gains from CAI and exhaust upgrades are also anecdotal. I think nothing short of a supercharger on these engines provides any definitive improvement.

Ummm...no again.

These engines can have significant gains in HP by changing exhaust headers, adding cams and heads plus tuning. They are not anecdotal and well proven by dyno numbers.

You should do a little more research before making blanket statements like that.

 

[Ddaddy]

Here is just one example of what headers can do...

 

[ert]

Ummm...no again.

These engines can have significant gains in HP by changing exhaust headers, adding cams and heads plus tuning. They are not anecdotal and well proven by dyno numbers.

You should do a little more research before making blanket statements like that.

They are absolutely anecdotal. By this I mean we have a handful of individual reports of people with those mods that show a dyno run before and after. In order to have non-anecdotal evidence, we would need to have say a few dyno runs before and after a specific mod on many (100+) different cars. That data via a controlled study doesn't exist.

 

[DerekBlk06RT]

I agree with ddaddy.... Catback and Trinity made my car feel completely different. Time and time again it's been proven that these 5.7L HEMI motors are "choked" from the factory. Open them up and let them breathe and they will not disappoint you. They respond well to cams, heads, headers and freer flowing exhaust. My '06 R/T liked exhaust, tuner and CAI upgrades, my '06 Hemi grand cherokee enjoyed its CAI and tuner, and my '11 R/T is the same. You may even notice your mpg's increase if you can behave and stay off the throttle.

 

[Ddaddy]

They are absolutely anecdotal. By this I mean we have a handful of individual reports of people with those mods that show a dyno run before and after. In order to have non-anecdotal evidence, we would need to have say a few dyno runs before and after a specific mod on many (100+) different cars. That data via a controlled study doesn't exist.

That's a completely incorrect use of the word "anecdotal".

Anecdotal means in essence "observational conclusion without measurable evidence". In this case the conclusion is fully substantiated with before and after measurement (i.e., cause and effect) and a causal relationship has been established.

What you are asking for is "Statistically Significant" data.

Do your own research and you will find more than enough data to be statistically significant.

In the mean time, folks with these mods will clean your stock engine clock at the track.

 

[ert]

Catback and Trinity made my car feel completely different.

I don't doubt that at all. With a tuner you can change the characteristics of the vehicle such as shift points and torque management, that are independent of power gains.

 

[Razorx]

I thought 2014's couldn't be tuned yet?

 

[ert]

That's a completely incorrect use of the word "anecdotal".

Anecdotal means in essence "observational conclusion without measurable evidence". In this case the conclusion is fully substantiated with before and after measurement (i.e., cause and effect) and a causal relationship has been established.

What you are asking for is "Statistically Significant" data.

Do your own research and you will find more than enough data to be statistically significant.

In the mean time, folks with these mods will clean your stock engine clock at the track.

Anecdotal has several meanings. I'm using it in the context of scientific study. They're personal accounts, yes with measured data, but not part of a controlled study, and thus anecdotal. See for example http://en.wikipedia.org/wiki/Anecdotal_evidence.

 

[Ddaddy]

Anecdotal has many meanings I'm using it in the context of scientific study. They're personal accounts, yes with measured data, but not part of a controlled study, and thus anecdotal.

No, there is no definition in scientific study that requires a controlled study to deem evidence to not be "anecdotal". That only applies to statistical conclusions.

These are not simply personal accounts making a conclusion (anecdotal) when it is measured using an independent measurement device such as a dyno. It is absolute measured and recorded data of a before and after effect.

Your interpretation is incorrect.

 

[ert]

It is absolute measured and recorded data of a before and after effect.

What's the uncertainty on the equipment? When's the last time it was calibrated? What the measurement done exactly the same each time? By the same person? Are the results cherry-picked or biased in any way to support a conclusion? When you start looking at all of the potential causes of error an uncertainty, "absolute" measurements become a lot less absolute. That's why in any scientific study we need to take multiple measurements under very controlled conditions.

Your interpretation is incorrect.

I'm not sure sure what definition you are referring to. Again, I don't mean anecdotal in the everyday usage, eg casual stories ("I heard a guy who..."), but rather in the context of scientific study. For example:

Anecdotal evidence can have varying degrees of formality. For instance, in medicine, published anecdotal evidence by a trained observer (a doctor) is called a case report, and is subjected to formal peer review.[12] Although such evidence is not seen as conclusive, it is sometimes regarded as an invitation to more rigorous scientific study of the phenomenon in question.[13] For instance, one study found that 35 of 47 anecdotal reports of drug side effects were later sustained as "clearly correct."[14]

Anecdotal evidence is considered the least certain type of scientific information.[15] It is the opposite of scientific evidence.[16] Researchers may use anecdotal evidence for suggesting new hypotheses, but never as validating evidence.

http://en.wikipedia.org/wiki/Anecdotal_evidence

See also http://www.geneseo.edu/~bearden/?pg=anecdote.html

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