supercharged Wrangler help

[jaimeson55]

I just installed the 2010 RIPP supercharger kit on a 2011 with RPMextreme ECU and a predator. The tune I got from RIPP is super lean, I started it and ran a couple low to mid rpm pulls at WOT and shut it down and pulled a plug. The plugs where frosted white pretty bad. I added in 15% full at the top, 10% at the mid and 5% at low RPM to start tuning down. Every time I hit 3.8k rpm it stumbles and again at high rpm but the plugs seem to be showing a good ratio. I am getting ready to weld on my o2 bung and plug in a wideband though I think I wasted my money on this predator. I can't adjust the fuel map outside of the 3 RPM bands. That is going to make a really bad tune. So now I have to find someone with this CMR software and pay them a huge amount of cash to tune WOT and drivability maps at every 10% throttle? That is going to cost a fortune. I am at a loss on what to do now.

[Mike_Levy]

Get it tuned properly. You didn't waste your money on the Predator, because without it, you have no way to upload a CMR tune. Frankly, if you think you wasted money, it was on the supercharger. Theres a reason why most guys won't even look at it and will instead drop in a Hemi. More power, better reliability, far more potential.

[jaimeson55]

I went with the supercharger because I wanted a simple upgrade that would make the jeep drivable without major modification that could not be removed it I decide to sell it. The supercharger fit the bill and didn't break the bank as much as the Hemi would have. The other plus side is I am at 5400 feet and travel to 8000 feet often. The forced induction has some real perks at this altitude. I have tuned many cars using Haltech, an Apex tuner, emanage and AEM on other peoples rides, mainly imports. I regret that the predator doesn't allow for the common end user to dial in fuel maps. It sure does cater to dyno shops though. Now to find a CMR tuner that will be able to tune a daily driver tune for under $1000. I would have much rather paid someone to tune WOT and tuned drivability low rpm/load myself.

[jaimeson55]

If the predator locks it's self out of tuning multiple cars what is the hurt in the customer having access to CMR? I would pay money for a less expensive end user version.

[Mike_Levy]

Nobody is going to charge you $1000 to tune the truck. If they want to charge more then like $400 for both WOT and part throttle, go elsewhere. You'll pay for dyno time on top of that, but you'd have that tuning it yourself anyway.

[jaimeson55]

I hope your right, going to call a local tuner show motiva monday. I am up in the air on fuel, need some opinions.

Snow performance says the water meth give you 113-116 octane equivalent. Max boost is 10PSI, 9.6-1 compression.
Water/Meth injection-87 octane gas
water/meth injection-91 octane gas
water/meth injection-E85

[mikel]

is there a wideband on this Jeep?

[Rpmextreme]

forget about the meth until you get it dialed in.

what fuel are you running curently?

how do you know your lean if you havn't installed the wideband yet?

Your jeep should run fine with a ripp tune. if it is not running correctly then there is a problem either with the ripp tune or the install.

I have several 2011 JKs running great, some with my Supercharger kit and some with ripps kit. It doesnt make business sense to me to tune kits that my competition supplied, but I have helped out a few guys with 2011's

[jaimeson55]

Very lean conditions, spark plugs solid white. I upped the fuel by 15% at the top, 10% at the middle and 20% at the bottom and was able to get the white out of the plug but now it stumbles at 3.8k rpm when is switches and also has a stumble at idle.


Boost-- Boost builds slow, not sure if that is normal, there is 0-2 psi up to 3k rpm. Around 3k rpm I get about 5-6 psi, at 4.5k rpm it spikes to 10 psi.

Diablo tuning change- 1k-3.8k +20%, 3.8k-5k +17%, 5k- 15% all at WOT

WideBand data-Idles at 15.6-16, during cruzing and daily driving is stays around 14+:1, at WOT I will see 13-14:1 @ 1k-3.8k RPM and a stumble and loss or power at 3.8k+. AF at 3.8k+ is 13:1ish with some 12:1 drops

2011 JK with 2010 kit and RPMExtreme ECU
Fuel is 91 octane
altitude 5400 feet
map kpa 24.8 <-----------Is this right?

My diablo is not able to data log, the options to add a sensor to log are not there.

[mikel]

any predator can log...

you should ideally be rich at that elevation, can you monitor fuel pressure? Have you worked with RIPPs tuner on this at all?

[Rpmextreme]

map kpa should be 99 or so key on engine off.
I would verify that you have the correct map sensor. I would assume that ripp verified the sensor before they sent it out.
post up your last tune written

[jaimeson55]

I have been trying to work with RIPP, they are short staffed and it takes a long time to hear back.

I talked to a local Tuner and he said he doesn't like working with Jeeps with the 3.8 because they don't transition from open to close loop well and not enough options are available from the CMR compared to the 5.7 jeeps. I don't know how much of that is ture but they said all of the supercharged JKs they have done with RIPP never seem to run right. That is not what I want to hear.

KPA off was 84
I can't imagine fuel pressure is an issue since it ran great before.

[Rpmextreme]

84 kpa sounds low. what altitude are you at?

check map sensor voltage engine off
2 bar = aprox 2.16 volts key on engine off at sea level
3 bar = aprox 1.62 volts key on engine off at sea level

[jaimeson55]

5400 feet

I will check the map as soon as I get off work.

[jaimeson55]

MAP sig voltage measured 3.4 volts engine off key on.