[JETmn]

Originally Posted by weehe126

It amazes me how you pick and choose points that support what you believe, yet ignore what has actually been posted proving otherwise. I posted about the different hpfp values for different loads as an example of why my 11-12 isn't the ragged edge of the pump. If I run 10psi, I'll still be at 11-12 because of the JB4 and BEF. Obviously if I tried to do 25psi I would run out of fuel and I would go below 9.

You really should look at my afr in all of my logs as none of them are lean. I think they are actually pretty rich for N55s. The only time my hpfp is at 9 or lower is cruising, like everyone else. Also, I never mentioned anything about JB4 only afr and trims, so again just shit posting.

If traction control "shuts down cylinders" as a normal thing, why would the car throw a bunch of codes and go into limp mode? If it's normal it should know it's doing that and not throw codes. I have had one push dtc on and had it miss/cut at 6000rpms. Turn it fully off and no more problems.

I'll post up a full 4th gear log when I can. Those above are what I can do daily and have plenty of. I am not trying to convince anyone a stage 2 lpfp will fix fueling issues. I just happen to have one and can run the above. My stock pump had 100k miles on it with a nasty filter, so upgrading probably did help me.

Thank the lord other people see this too. He just got done doing the same thing with me too. Also his comment about the JB4 having a log refresh rate of 1.5sec, wtf?!? This guy, I tell ya. Spouts constant crap all the damn time. I wonder if you can block a user...

[bbnks2]

Originally Posted by JETmn

Thank the lord other people see this too. He just got done doing the same thing with me too. Also his comment about the JB4 having a log refresh rate of 1.5sec, wtf?!? This guy, I tell ya. Spouts constant crap all the damn time. I wonder if you can block a user...

You're right, looks like the TIMESTAMP column in JB4 logs is reported in Hundredths of a second or something? Decimal place is off by one maybe? Not sure, but I like how you're more concerned with this than the fact that JB4 CANT LOG MISFIRES lol... that was the main takeaway.

And yes, there are some N55 JB4 logs (probably has to do with DME rom version) that only gives users 3-4 data points across an entire pull. I can dig up logs if you want on N54 tech.

There is a difference between "spouting crap" and you just not being able to grasp things. If you and other didn't make things personal I wouldn't be so compelled to take the time to disprove every erroneous statement you make.

[JETmn]

Originally Posted by bbnks2

You're right, looks like the TIMESTAMP column in JB4 logs is reported in Hundredths of a second or something? Decimal place is off by one maybe? Not sure, but I like how you're more concerned with this than the fact that JB4 CANT LOG MISFIRES lol... that was the main takeaway.

And yes, there are some N55 JB4 logs (probably has to do with DME rom version) that only gives users 3-4 data points across an entire pull. I can dig up logs if you want on N54 tech.

There is a difference between "spouting crap" and you just not being able to grasp things. If you and other didn't make things personal I wouldn't be so compelled to take the time to disprove every erroneous statement you make.

You are the one always saying things wrong and trying to redirect from your wrong statements. What does the engine do when it sees misfires? It pulls timing. Does the JB4 report timing? Yes. So indirectly it does show misfires. I am not a huge JB4 fanboy though and agree it is just a hack, but it works fairly well. I am probably going to run a stacked setup when my PS2 goes in because both flash and JB4 have their positives.

[bbnks2]

Originally Posted by JETmn

You are the one always saying things wrong and trying to redirect from your wrong statements. What does the engine do when it sees misfires? It pulls timing. Does the JB4 report timing? Yes. So indirectly it does show misfires. I am not a huge JB4 fanboy though and agree it is just a hack, but it works fairly well. I am probably going to run a stacked setup when my PS2 goes in because both flash and JB4 have their positives.

Hate to have to even type these words because you're going to get defensive, but you're wrong.

I posted up a log of my car missing on an older tune revision. Timing does not get pulled when a misfire happens. My timing is dead on target despite misfires on 2 different cylinders. The log actually looks perfect other than the misses.

YOU MIGHT be able to see misfires in your logs if you see dips in RPMS ? Reviewing my own logs DOES NOT always show a dip in rpms though so I would say you can't go by that. Logging resolution may not be fast enough to see the slight dips in rpms every time it happens. If I hadn't started logging misfires I would've assumed everything was running just fine when it really wasn't. We have since tuned the misfires out!

I think we can all agree at this point that allowing rail pressure to dip as low as people do on JB4 cars can induce misfires. It is very plausible they just don't feel them. These misfires, that have been logged with MHD, is why flash tuners like to keep rail pressure up above the point where the car completely breaks up (recommended to keep it over 2000psi). There is no magic to the JB4 that allows people to run without issue at lower rail pressures than flash cars.

[WedgePerformance]

Hey guys, just a little update. I have been running the Pure Stage 2 for 8 months now, and went through all the steps of tuning it to doing an s55 flywheel to get the power out of it on a heart breaker dyno. 515 whp and 525 ft/lbs. This is by far the best turbo you can buy at this time for the N55. Hopefully Pure has something up their sleeve as it would be nice to see a stage 3 option in the future. I have a video I'll be posting soon. Car really rips and even on pump it's a much better option than anything else out there.

[houtan]

Originally Posted by bbnks2

Hate to have to even type these words because you're going to get defensive, but you're wrong.

I posted up a log of my car missing on an older tune revision. Timing does not get pulled when a misfire happens. My timing is dead on target despite misfires on 2 different cylinders. The log actually looks perfect other than the misses.

YOU MIGHT be able to see misfires in your logs if you see dips in RPMS ? Reviewing my own logs DOES NOT always show a dip in rpms though so I would say you can't go by that. Logging resolution may not be fast enough to see the slight dips in rpms every time it happens. If I hadn't started logging misfires I would've assumed everything was running just fine when it really wasn't. We have since tuned the misfires out!

I think we can all agree at this point that allowing rail pressure to dip as low as people do on JB4 cars can induce misfires. It is very plausible they just don't feel them. These misfires, that have been logged with MHD, is why flash tuners like to keep rail pressure up above the point where the car completely breaks up (recommended to keep it over 2000psi). There is no magic to the JB4 that allows people to run without issue at lower rail pressures than flash cars.

I am sure you saw this already. But in case you or others haven't, MHD himself says the misfire logging is not accurate and he is going to remove it from the app. He clarifies that throwing a code is what you should look for, or obviously, when you hear or feel them.

http://www.e90post.com/forums/showpo...postcount=4003

[houtan]

Originally Posted by WedgePerformance

Hey guys, just a little update. I have been running the Pure Stage 2 for 8 months now, and went through all the steps of tuning it to doing an s55 flywheel to get the power out of it on a heart breaker dyno. 515 whp and 525 ft/lbs. This is by far the best turbo you can buy at this time for the N55. Hopefully Pure has something up their sleeve as it would be nice to see a stage 3 option in the future. I have a video I'll be posting soon. Car really rips and even on pump it's a much better option than anything else out there.

where is that video Ken!

[ANMVQ]

Originally Posted by WedgePerformance

Hey guys, just a little update. I have been running the Pure Stage 2 for 8 months now, and went through all the steps of tuning it to doing an s55 flywheel to get the power out of it on a heart breaker dyno. 515 whp and 525 ft/lbs. This is by far the best turbo you can buy at this time for the N55. Hopefully Pure has something up their sleeve as it would be nice to see a stage 3 option in the future. I have a video I'll be posting soon. Car really rips and even on pump it's a much better option than anything else out there.

Nice to hear man, since I'm getting close to getting STG2 :/.

[bbnks2]

Originally Posted by houtan

I am sure you saw this already. But in case you or others haven't, MHD himself says the misfire logging is not accurate and he is going to remove it from the app. He clarifies that throwing a code is what you should look for, or obviously, when you hear or feel them.

http://www.e90post.com/forums/showpo...postcount=4003

You think people are going to "feel" a few misfires the DME doesn't throw a code for? NOPE. You're dealing with people who don't even understand why flash tuning is necessary and don't even know that a BEF is a flash tune.

Everyone in this thread missed the point. You don't want to run your rail pressure low. It's bad. Fuel atomization is poor. Misfires occur. The only people getting confused by this are people claiming JB4 can do something flash tuning cant. No, a JB4 doesn't allow a car to run at lower rail pressure without issue. That was the debate.

The misfire logging is a bit weird. It shows a misfire for several seconds after it happens. It also shows a misfire count for that whole duration of time (1/2/3+). People have been asking in the MHD thread on why it show "cyl x" misfiring across an entire pull. It's not. It misfired once (or whatever the count says). That is the confusion MHD is talking about. Maybe the DME reports misfires this way because it is looking to see if x number of misfires occur within y time before it throws a code? who knows... but there is nothing confusing about it to me. Unfortunately, MHD looks like they might take the path of showing users LESS information (a detriment to "power users") in an effort to simplify things for the masses.

Still waiting on all those logs of PS2s up top in 4th...

[WedgePerformance]

Originally Posted by houtan

where is that video Ken!

I'm waiting also. The guy who is doing the video is working on it, so hopefully soon. I did get a new toy I'll be sharing some video on here shorty. I'll hit you up offline with some information.

[spiritsavage]

Sorry this is a little later, but I had a question! I'm wanting to eventually go FBO, but right now all I have is CP. My turbo is whistling a little, so I'm not sure if it's going to be going out soon. I'm thinking about upgrading to Pure Stage 2 instead of going with stock. At the moment I'm looking for reliability, but later it'll be for performance. Would it hurt anything with stock +cp?

[Turbod]

Originally Posted by spiritsavage

Sorry this is a little later, but I had a question! I'm wanting to eventually go FBO, but right now all I have is CP. My turbo is whistling a little, so I'm not sure if it's going to be going out soon. I'm thinking about upgrading to Pure Stage 2 instead of going with stock. At the moment I'm looking for reliability, but later it'll be for performance. Would it hurt anything with stock +cp?

The whistle you're hearing is most likely a minor boost leak. I don't understand your question though. You want to buy a PS2 and switch back to the stock chargepipe? No, it doesn't hurt anything but it will eventually fail. If you upgrade the turbo you need to at minimum upgrade the intercooler.

[weehe126]

Originally Posted by spiritsavage

Sorry this is a little later, but I had a question! I'm wanting to eventually go FBO, but right now all I have is CP. My turbo is whistling a little, so I'm not sure if it's going to be going out soon. I'm thinking about upgrading to Pure Stage 2 instead of going with stock. At the moment I'm looking for reliability, but later it'll be for performance. Would it hurt anything with stock +cp?

Yes you can run a PS2 with stock tune. But I doubt your turbo is going out.

[spiritsavage]

Originally Posted by weehe126

Yes you can run a PS2 with stock tune. But I doubt your turbo is going out.

Oh that's good news. Why's it squeaking then? I know it's not the belt because it kicks in early and stays spinning (it's not rotating faster as if it were the engine belt w/ growing rpms). It only does it every now and then. I actually haven't heard it for a couple days, but it has been a couple days without the sound then a day with the sound twice now.

[spiritsavage]

Originally Posted by Turbod

The whistle you're hearing is most likely a minor boost leak. I don't understand your question though. You want to buy a PS2 and switch back to the stock chargepipe? No, it doesn't hurt anything but it will eventually fail. If you upgrade the turbo you need to at minimum upgrade the intercooler.

You don't think I need a new chargepipe if it's leaking than, do you? And no, I just meant with the ETS I have on it now, is that enough to upgrade to a PS2 since I thought my turbo might need to be replaced anyway. But I could do an IC first.

[weehe126]

Originally Posted by spiritsavage

Oh that's good news. Why's it squeaking then? I know it's not the belt because it kicks in early and stays spinning (it's not rotating faster as if it were the engine belt w/ growing rpms). It only does it every now and then. I actually haven't heard it for a couple days, but it has been a couple days without the sound then a day with the sound twice now.

When does it squeak? I'm guessing you have a bad PCV valve in the valve cover.

[Turbod]

Originally Posted by spiritsavage

You don't think I need a new chargepipe if it's leaking than, do you? And no, I just meant with the ETS I have on it now, is that enough to upgrade to a PS2 since I thought my turbo might need to be replaced anyway. But I could do an IC first.

If you have a leak at your chargepipe the common places in order are the oring where it connects to the throttle body, the seal around the TMAP sensor, or any methanol bungs.

[spiritsavage]

Originally Posted by weehe126

When does it squeak? I'm guessing you have a bad PCV valve in the valve cover.

It's normally when I first start it. After running it for a while it settles down until a few days later. It honestly sounds like a bad engine belt, but I know it's not just because it makes the sound when the turbo spools.

[spiritsavage]

Originally Posted by Turbod

If you have a leak at your chargepipe the common places in order are the oring where it connects to the throttle body, the seal around the TMAP sensor, or any methanol bungs.

I'll check these out! Thanks!

[spiritsavage]

Originally Posted by spiritsavage

You don't think I need a new chargepipe if it's leaking than, do you? And no, I just meant with the ETS I have on it now, is that enough to upgrade to a PS2 since I thought my turbo might need to be replaced anyway. But I could do an IC first.

I have a list of mods, and the PS2 is after FBO, suspension, spoiler and LSD. I just figured if it was the turbo, I should just upgrade while replacing. I just wanted to clarify.