I busted my cats on a trail a month or so ago and the sound is driving me crazy. The dealer is quoting me at $700 for the entire cat package (no labor there). For an extra $500 Ripp will give me HIGHFLOW cats plus long tube headers?! I'm down. What does everyone think about this? Who has headers and like em? Do superchips work with em? Are these worth it?
Let's talk about this guys!

 

I saw a thread on this forum about the incompatibility with superchips & Rip Long Tube headers. I know there is a forum searching button on here that I'm going to attempt (Sarcasm)

Hopefully, Ripp or Superchips can confirm.

 

Thats what I would do if I was in your situation. I'm doing the same thing with my hood right now......it got damaged from hail, so I'm forking out the extra $300 for the AEV hood instead of an OEM replacement.

I don't think are a whole lot of headers out there yet for us to hear about though. I know I just saw a post today that they are in stock and shipping out. I haven't seen any real world experiences yet.

The Superchips compatibility would be a direct question for Superchips and RIPP

 

and ten characters

 

Ya i've seen a bunch of different answers out there. The ripp guys say yes. Some forum dudes say no. I just think that for an extra 500 bucks (above cats from dealer) that it's worth it.

 

There should be no incompatibility of the tuning with the flashpack, ultimately under all circumstances the OEM ECU is in charge... All trimming and end corrections are done through the factory set of O2 sensors - Since we properly placed the O2's the values are within reach of the ECU and it trims fuel accordingly.... We concentrated on the exhaust pulsations and the flow characteristics - any outside tuning based on throttle response will only take advantage of the added flow


RIPPTECH

 

has anyone dynoed or at least have a rough estimate of the HP of a RIPP header w/ a superchip tune? Id like to add both of these to my manual JK. I believe i read somewhere that the Manual transmission version doesnt scavange as much HP through the drivetrain as an automatic.

Auto RwHp -134

Manual Rwhp - 159

this is an estimate cause i cant find the exact numbers for manual.. i apologize but you get the picture these numbers arent far off.

 

During open loop operation the O2 sensors are not used to determine fuelling requirements. The closed loop to open loop transition is much more complex now a days, but anything over 3/4 throttle is probably going to cause the transition to open loop.

Since the JK is a speed density system (i.e. it uses a MAP sensor and IAT sensor versus a MAF sensor) it cannot detect an increase in airflow due to after market parts. The ECU calculates injector pulse width in open loop based on VE tables (volumetric efficiency tables). Those VE tables are based on the flow rates with stock parts.

I see a number of people complaining about pinging when running cold air intakes and running the flashpaq and I think it's for the same reason. You've increased the flow and there is no way a speed density system in open loop can detect and account for the additional airflow. Without the flashpaq the factory's conservative tune has enough wiggle room that the CAI works fine. But with the flashpaq's tune there isn't enough cushion.

Personally I'd like to see Superchips work with popular aftermarket companies to come up with some tunes for common aftermarket parts (exhaust and intake for example). I believe other companies do this in the high performance market (mustang/camaro). I believe those programmers ask you during programming about aftermarket parts you have added such as header.

If the RIPP header's don't cause a lean condition during open loop full throttle operation, with or without a flashpaq, that tells me that they don't flow much more than stock.

 

This info, in theory is all correct and should be followed to the tee - however you don't have the extensive time behind the tuning of a JK and how its adaptive' work... you don't know the cross over points between open and closed loop - so publishing commonly know general info out there like this only confuses end users and stalls good product getting to good people.... the JK is anything but lean regardless of any plug and play tuning....

A plug and play tuner like a flashpaq is a general tuner and on our dyno it made 7whp and the air fuel was nearly identical to stock (that was without the headers). It did throw the throttle flap faster like a sprint booster, which makes the ECU tune for the condition... we are sure based on our experience - that adding our header to a flashpaq with keep things clean and there will not be a issue... the ECU is still always ultimatly in charge....

Now if you really want to play with power, adding a Diablo Sport tuner to the mix which requires a professional tuner is the way to go, he would rescale the entire fuel and timing map and maximize the headers potential. Bellow is a video of a 07 JK with 35's and 4:88 gearing. It also had a plugs and play Hypertec 93oct tune - its was perfect... again we base our info on our experience not theory.

http://www.youtube.com/watch?v=cAhLZYsnbLo questions welcome.
RIPPTECH

 

I'm not saying the long tubes don't run well either with or without the superchips. I'm just pointing out an ECU cannot adapt to something it cannot measure. A speed density-density system in open loop cannot measure airflow. It calculates it based on RPM, manifold absolute pressure, intake air temperature and the known volumentric efficiency of the stock parts.

Just out curiosity what kind of A/F ratios do you see on a stock JK at wide open throttle? What kind of A/F ratios do you see with the long tube headers?

Have you tested any cold air intakes? Do they alter the A/F ratio compared to a stock JK?

I'd love to get a Diablo sport tuner and a wideband O2 sensor and do some of my own tuning. But I suspect they may restrict who they sell their software for tuning it to.