[WedgePerformance]

Originally Posted by TGNY 335

there is no confusion, you don't have to tell me how the DME works. i know how it works. and i never said anything about getting rid of throttle safeties of the factory PID system. But saying throttle closures are acceptable and a good for a happy tune is incorrect. because if there are too many and big, performance is decreased greatly. There was really no assumption made. it was your words.

your exact words were: "Everyone needs to realize that a properly tuned car will still have corrections and throttle closure"

a properly tuned car should not have throttle closures. whether Custom or OTS if they are proper, they should have minimal to none. I'd refrain from telling people throttle closures are OK. that's like saying losing power 50% of the time is OK, and it's not.

Yes, OTS tunes are made for a variety of vehicles so some wiggle room must be calibrated into the program, but just because its an OTS doesn't mean you can say throttle closures are fine, lol.

So just push load request and boost target up so you don't have any correction without disabling throttle safety... got it.

Like I said, I agree with you on a custom tune you shouldn't have closure. But when you're dealing with a global market, you have to take into consideration that some cars will overshoot boost target and when it does, it will have minor throttle closures. It's part of the DME safety / boost control and unlike a N/A motor it doesn't cause a big drop in power, it smooths out the power and prevents a power spike.

You'll have people believe that power goes from 400 whp to 300 whp with throttle closure. That is not the case at all. It will keep the power smooth and prevent power surge as it controls manifold boost pressure. The only time you'll feel it is when you're overshooting load request and it starts surging with WG oscillation. I agree that is not the way to tune and that's not how I tune.

Enough said. We both have our opinions. Right or wrong it doesn't matter, we can both agree to disagree.

[robbob1980]

Could someone take a look at my log please? I don't seem to be hitting target boost of 18.2. Its Only reaching about 16.5 but my wgdc is still quite low at 40-50. Shouldn't it close the Wastegates more to increase the boost to target? I've checked for a boost leak but can't find any.
I'm running mhd stage 2+ 93-98 oct. with FMIC, catless DPs and Mr5 intake. It runs fine and still pulls hard but I'm just wondering why I'm under target?

http://www.datazap.me/u/robbob1980/l...data=4-6-22-29

Cheers

Rob

[X.X.I.V]

I'm actually running the same tune and I'm not hitting target either.
My plugs are about 20k old, how old are your plugs

http://www.datazap.me/u/mario0573/lo...rk=85-59-43-68

[robbob1980]

Mine had new plugs and coils just over 10k miles ago. How often should plugs be changed?

[Theador]

Originally Posted by robbob1980

Mine had new plugs and coils just over 10k miles ago. How often should plugs be changed?

I think you generally halve the distance stated in the owners manual once you've tuned a car.

[hellokitty]

Originally Posted by robbob1980

Mine had new plugs and coils just over 10k miles ago. How often should plugs be changed?

I'd do them every 10-15k depending on your level of boost.

[Theador]

Strangely my boost isn't hitting target even though I'm on brand new turbos. Any ideas? New VRSF FMIC coming this Friday, although I don't think the temps were terribly high in this log

http://datazap.me/u/theador/back-sta...6-26&solo=4-26

[335inDe]

Originally Posted by Theador

Strangely my boost isn't hitting target even though I'm on brand new turbos. Any ideas? New VRSF FMIC coming this Friday, although I don't think the temps were terribly high in this log

http://datazap.me/u/theador/back-sta...6-26&solo=4-26

Jesus man take a proper log, 3rd gear 2k-6k rpms shift into 4th for a few seconds and that's it nothing more nothing less unless asked by a tuner for something specific 🙈

[335inDe]

My first log with v7, mind you this car is stock other than FMIC and catback exhaust..still has factory airbox, dp's and chargepipe on these logs lol. Opinions?
http://datazap.me/u/seekup17/log-146...og=1&data=4-22

[335inDe]

Originally Posted by robbob1980

Could someone take a look at my log please? I don't seem to be hitting target boost of 18.2. Its Only reaching about 16.5 but my wgdc is still quite low at 40-50. Shouldn't it close the Wastegates more to increase the boost to target? I've checked for a boost leak but can't find any.
I'm running mhd stage 2+ 93-98 oct. with FMIC, catless DPs and Mr5 intake. It runs fine and still pulls hard but I'm just wondering why I'm under target?

http://www.datazap.me/u/robbob1980/l...data=4-6-22-29

Cheers

Rob

you guys really need to read about taking proper logs the last few people on here put up multi gear or whatever logs I personally won't even look I get nauseous..but under boost can be many things..solenoids, you didn't mention charge pipe are you running stock Dv's? and also lack of airflow..take a proper log and maybe people will chime in

[hellokitty]

Originally Posted by 335inDe

My first log with v7, mind you this car is stock other than FMIC and catback exhaust..still has factory airbox, dp's and chargepipe on these logs lol. Opinions?
http://datazap.me/u/seekup17/log-146...og=1&data=4-22

You need a CP

[335inDe]

Originally Posted by hellokitty

You need a CP

Oh I know..still does good for a mostly stock car

[robbob1980]

Originally Posted by 335inDe

you guys really need to read about taking proper logs the last few people on here put up multi gear or whatever logs I personally won't even look I get nauseous..but under boost can be many things..solenoids, you didn't mention charge pipe are you running stock Dv's? and also lack of airflow..take a proper log and maybe people will chime in

Have you looked at the log? It goes from 2.5k to 6k then into 4th for a bit. Not too dissimilar to your log. Yeah I forgot to say I have uprated charge pipe with a hks bov. I did have a bailey bov on first but found that it was leaking so bought a new one.

Cheers

Rob

[335inDe]

Originally Posted by robbob1980

Have you looked at the log? It goes from 2.5k to 6k then into 4th for a bit. Not too dissimilar to your log. Yeah I forgot to say I have uprated charge pipe with a hks bov. I did have a bailey bov on first but found that it was leaking so bought a new one.

Cheers

Rob

Oops my apologies I quoted wrong person..your log looks decent I would say a tad slow on spool only comparing to mine because you have more mods but hardly anyone hits and holds target on OTS maps nor do I believe they are designed to..if you are 1 psi or so off I don't see a problem now 3-4psi off I'd be scratching my head..if you want it perfect you need a custom tune dialed in..

[Theador]

Originally Posted by 335inDe

Jesus man take a proper log, 3rd gear 2k-6k rpms shift into 4th for a few seconds and that's it nothing more nothing less unless asked by a tuner for something specific 🙈

Sorry dude, ye not the best one to share, I've got a number of 3rd to 4th 2500-6000k I'll dig one out

[Theador]

Originally Posted by 335inDe

Jesus man take a proper log, 3rd gear 2k-6k rpms shift into 4th for a few seconds and that's it nothing more nothing less unless asked by a tuner for something specific ��

Quick check through, here's one although didn't hold WOT in 4th.
Also some timing corrections which I think were down to IATs

So just to recap, I've had new turbos fitted, but I don't seem to be holding boost. Could this also be down to IAT temps?

http://datazap.me/u/theador/98ron-st...10-11-12-14-24

[335inDe]

Originally Posted by Theador

Quick check through, here's one although didn't hold WOT in 4th.
Also some timing corrections which I think were down to IATs

So just to recap, I've had new turbos fitted, but I don't seem to be holding boost. Could this also be down to IAT temps?

http://datazap.me/u/theador/98ron-st...10-11-12-14-24

Something going on in cylinder 1 your boost starts to taper just as the timing correction levels out..I'm not an expert by any means but I would troubleshoot the timing correction first..

1. I'd update to v7 maps and reset all adaptations properly.
2. I'd move coil pack in cyl 1 and see if it follows
3. If no change then look at plugs see if cyl 1 looks different
4. Lastly move injector to another bank..
5. Another idea cyl 1 intake valve could be more gunned than the others.

[Theador]

Originally Posted by 335inDe

Something going on in cylinder 1 your boost starts to taper just as the timing correction levels out..I'm not an expert by any means but I would troubleshoot the timing correction first..

1. I'd update to v7 maps and reset all adaptations properly.
2. I'd move coil pack in cyl 1 and see if it follows
3. If no change then look at plugs see if cyl 1 looks different
4. Lastly move injector to another bank..
5. Another idea cyl 1 intake valve could be more gunned than the others.

Thanks for that. I'm putting in a VRSF Intercooler this week. I'll update to V7 after that and take another log. The timing corrections aren't always isolated to Cylinder 1. I'm going to change out the sparks as they've got about 10-15k on them now and I don't know how hard the previous owner was driving.

[MDMA 135i]

Please help, last month i was driving on the freeway and few minutes after some hard driving i try to accelerate in the 4nd gear and got reduced engine power and mhd read 30FF - Low Boost Pressure. I also think that i heard some strange noise like something was broken..

Mhd stg 1+,downpipes,without intercooler

Car has a boost but there is no power any more :/
What can be a problem that there is boost but no power. Turbos also changed sound but not significant.

This is log before failure

http://datazap.me/u/bmw135in54/log-1...10-11-12-13-24

Log after failure

http://datazap.me/u/bmw135in54/log-1...=0&data=4-6-24

here i have timing correction but i changed my old original bmw spark plugs for new bosch plugs..

Sorry on my bad english and i hope that is only boost leak :/

i uses mhd only for 700-800km

[hellokitty]

Originally Posted by MDMA 135i

Please help, last month i was driving on the freeway and few minutes after some hard driving i try to accelerate in the 4nd gear and got reduced engine power and mhd read 30FF - Low Boost Pressure. I also think that i heard some strange noise like something was broken..

Mhd stg 1+,downpipes,without intercooler

Car has a boost but there is no power any more :/
What can be a problem that there is boost but no power. Turbos also changed sound but not significant.

This is log before failure

http://datazap.me/u/bmw135in54/log-1...10-11-12-13-24

Log after failure

http://datazap.me/u/bmw135in54/log-1...=0&data=4-6-24

here i have timing correction but i changed my old original bmw spark plugs for new bosch plugs..

Sorry on my bad english and i hope that is only boost leak :/

i uses mhd only for 700-800km

Busted chargepipe?

[MDMA 135i]

That was the first thing i checked, charge pipe is ok. Today i will check intercooler and turbo outlets. All vacuum lines are silicone ones and all replaced 1 year ago.

[I'mFineW/Slow]

http://www.datazap.me/u/imfinewithsl...0&data=4-20-23

No modifications, 105k miles on the odo, wastegates = maracas

I replaced spark plugs a few hundred miles ago and have a stumble at idle that is not throwing codes. Couldn't find anything using the Schwaben/Foxwell Scan Tool and I knew I wanted to eventually start tuning so downloaded the MHD app.

I am now stage 1, still a stumble at idle though it is not as bad as when I was stock. If someone could take a look, it would be much appreciated. gotta figure out which cylinder(s) are giving me the issues so I can repair accordingly. Someone had also suggested fuel pump issues can cause the stumble.. but it started literally right after swapping plugs. The car has had LPFP and HPFP replaced, but tens of thousands of miles ago.

Hopefully I logged the right channels. It has everything from WOT to idle.