[cvc 22349a]

Sorry to start yet another Dinan Software Thread, but I haven't found an answer to a question I have regarding the Dinan Flash in this forum: I live at 6000' and drive up to 8000' at times. It's my understanding the stock ECU compensates for altitude by increasing max boost from 8._ to 11 psi? My car does seem to almost pull as strong at altitude as it does at sea level. However, I am interested in increasing hp/tq like most folks here. Does anyone whose had the Dinan reflash installed live at a similar altitude? I was wondering if the Dinan Software compensates for altitude by increasing max boost as the stock ecu does? I spoke with a guy at Dinan (Sean?) who was unable to answer my question. He said they hadn't measured max boost with their reflash at this altitude yet. He seemed to think max boost would not increase at altitude and could possibly be reduced instead. I'd sure appreciate hearing from a Dinan reflash owner on this subject.
Thx

[midlife]

Originally Posted by cvc 22349a

Sorry to start yet another Dinan Software Thread, but I haven't found an answer to a question I have regarding the Dinan Flash in this forum: I live at 6000' and drive up to 8000' at times. It's my understanding the stock ECU compensates for altitude by increasing max boost from 8._ to 11 psi? My car does seem to almost pull as strong at altitude as it does at sea level. However, I am interested in increasing hp/tq like most folks here. Does anyone whose had the Dinan reflash installed live at a similar altitude? I was wondering if the Dinan Software compensates for altitude by increasing max boost as the stock ecu does? I spoke with a guy at Dinan (Sean?) who was unable to answer my question. He said they hadn't measured max boost with their reflash at this altitude yet. He seemed to think max boost would not increase at altitude and could possibly be reduced instead. I'd sure appreciate hearing from a Dinan reflash owner on this subject.
Thx

i cold be wrong, but i do not think a big company like dinan is going
to respond very quickly or at all to your altitude problem.

yes your ecu adapts from 8 to 11 psi up to approx 5-6,000 feet from what i have read.
i am at 8,500 feet so i have a much biggr problem to deal with than u.
you definitely need to go with a milder tune if u r occasionally go up to
8,000 feet.

on this forum, you should try to go with proceed and request a LBT low bost target map. with procede, you can also ¨dial back¨the torque settings if you have to. i am not a proceed expert, by i think default torque settings are 90%, but you can go less than 90% if u have to.

there are at least a few people in this forum running proceed at approx 5,500 feet....

i suggest:
1/ do some searches on this forum
2/ do your homework, then contact shiv and company and ask specifics
on how proceed will work for you.
3/ buy a slightly milder tune, and get something installed, u will be very happy

good luck

good luck.

[cvc 22349a]

Thanks for the response. I've done a ton of reading on this forum and am aware of the different tunes. I inquired specifically about Dinan because I don't want to get CELs or have to uninstall another tune when I go to the dealer for service, but I think I'll take your advice and contact Vishnu fwiw.
Why would I want a milder tune at altitude? Isn't the fuel octane requirement less at altitude?

[ThomasMartin]

Originally Posted by cvc 22349a

Thanks for the response. I've done a ton of reading on this forum and am aware of the different tunes. I inquired specifically about Dinan because I don't want to get CELs or have to uninstall another tune when I go to the dealer for service, but I think I'll take your advice and contact Vishnu fwiw.
Why would I want a milder tune at altitude? Isn't the fuel octane requirement less at altitude?

Think iv had all the experience you can with testing boost at altitude.
Yes your turbo will compensate for your higher altitude but only up to a certain point, for example with my Procede i max out at 14.1 PSI and guys at sea level are getting 15 PSI at lower settings, More air more boost.
Im at 5500ft and im having no problem with the Procede V2, and at least this tuner gives you the option to up or down your boost with user torque settings a Dinan flash the boost is set you cant change it.

To answer your next question , yes the higher your altitude the less the octane requirements are for the car to boost the same and not knock. At least thats what i have experienced so far. Hope that helps you out.

[Bubbles]

Originally Posted by cvc 22349a

Sorry to start yet another Dinan Software Thread, but I haven't found an answer to a question I have regarding the Dinan Flash in this forum: I live at 6000' and drive up to 8000' at times. It's my understanding the stock ECU compensates for altitude by increasing max boost from 8._ to 11 psi? My car does seem to almost pull as strong at altitude as it does at sea level. However, I am interested in increasing hp/tq like most folks here. Does anyone whose had the Dinan reflash installed live at a similar altitude? I was wondering if the Dinan Software compensates for altitude by increasing max boost as the stock ecu does? I spoke with a guy at Dinan (Sean?) who was unable to answer my question. He said they hadn't measured max boost with their reflash at this altitude yet. He seemed to think max boost would not increase at altitude and could possibly be reduced instead. I'd sure appreciate hearing from a Dinan reflash owner on this subject.
Thx

Call Dinan back and speak with their "Tech Department." You have a good question.

[midlife]

Originally Posted by ThomasMartin

Think iv had all the experience you can with testing boost at altitude.
Yes your turbo will compensate for your higher altitude but only up to a certain point, for example with my Procede i max out at 14.1 PSI and guys at sea level are getting 15 PSI at lower settings, More air more boost.
Im at 5500ft and im having no problem with the Procede V2, and at least this tuner gives you the option to up or down your boost with user torque settings a Dinan flash the boost is set you cant change it.

To answer your next question , yes the higher your altitude the less the octane requirements are for the car to boost the same and not knock. At least thats what i have experienced so far. Hope that helps you out.

since i am at very high altitude, i have always followed you and M&M around.
a couple of quick questions if you do not mind:
1/ what octane do you run DAY to DAY (not boosted for racing)?
2/ you are maxed out at 14.1 psi, that is at what proceed torque %?
are u using the proceed torque default of 90%?
3/ did shiv give you guys any specific tune tweaks or guidlines re your altitude ans/ or octane situation?
4/ do you (or M&M) know from your extensive dyno sessions what whp the v2 gave you guys on a NON altitude corrected basis?


i ask this because i am curious to see what the DIFFERENCE is between your ACTUALLY WHP v2 at 5,000 feet
compared the same v2 setup (with similar other mods) at sea level.

BEST IF YOU CAN GIVE ME SOME UNCORRECTED whp number with as few
other car mods re the dyno as possible.
this would make your altitude comparo with a sea level comparo much clearer and easier.

i am very interested in this data, hopefully you have something.

thanks

[cvc 22349a]

Originally Posted by Shadyg

Call Dinan back and speak with their "Tech Department." You have a good question.

I did. The guy I spoke with last week said he'd inquire and get back to me (never did). Again, he wasn't aware of any testing at this altitude. He even offered to install their software to my ecu at a reduced cost at their facility if I was willing to get a boost gauge and measure at altitude.

[ThomasMartin]

Originally Posted by midlife

since i am at very high altitude, i have always followed you and M&M around.
a couple of quick questions if you do not mind:
1/ what octane do you run DAY to DAY (not boosted for racing)?
2/ you are maxed out at 14.1 psi, that is at what proceed torque %?
are u using the proceed torque default of 90%?
3/ did shiv give you guys any specific tune tweaks or guidlines re your altitude ans/ or octane situation?
4/ do you (or M&M) know from your extensive dyno sessions what whp the v2 gave you guys on a NON altitude corrected basis?


i ask this because i am curious to see what the DIFFERENCE is between your ACTUALLY WHP v2 at 5,000 feet
compared the same v2 setup (with similar other mods) at sea level.

BEST IF YOU CAN GIVE ME SOME UNCORRECTED whp number with as few
other car mods re the dyno as possible.
this would make your altitude comparo with a sea level comparo much clearer and easier.

i am very interested in this data, hopefully you have something.

thanks

Look im in no way a pro at the tech stuff M&M is much more knowledgeable but i think what is important is the willingness to experiment and test for yourself what your perfect setup is, not just listen to people at sea level because the tune for your car will be different at high altitude and unfortunately we have to experiment ourselves to get any help, M&M and myself do that practically every day, so ill try answer all your questions based only on MY experience not knowledge.

1) Day to day i run the best 95 RON i can find 91 AKI

2) I have progressively upped Torque values from 90% all the way to 100% and run many logs and dyno runs at every Torque setting to monitor for knocking or any problems, ill answer you in this way - from 90% - 94% i saw a small increase in boost from 13.5 - 14.1 and than no matter how high i put the settings from there it stays at 14.1.

Now from my experience at sea level - knocking is a very real danger if you dont have good quality fuel as you move up in altitude the requirement for higher octane drops as the oxygen pressure drops and thereby also lowering your chances of knocking and causing damage when running the same boost.. I have never experienced any knocking at all - i misunderstood misfiring to be knocking at one point - but i have never experienced knocking at any torque setting, At my altitude even on pump fuel. Now upping Torque values probably adjusts many things a couple being boost and timing. From 94% up the car does feel more power and gets substantial more power on the dyno but you dont see more boost due to altitude, your gains are probably purely due to timing advancement, but none the less the power gain is there. Im running 98% on pump fuel AFR is normal and power is GREAT and i test every day on the dyno for the smallest amount of knock and i have not gotten any to date. Please take into account that Shiv says DP's decrease chance of knocking so maybe the same torque settings without DP could knock

3) Shiv had not given the guys at high altitude any advice or tweaking besides being safe and stay at 94%. I can understand him saying this as he does not want to be blamed for problems or damage if you use bad quality fuel and no matter what happens people will just blame the procede again. Run good fuel even 91 AKI pump fuel at high altitude and you wont have problems at high torque settings - Once again for the guys that are gonna say "BUT SHIV SAID" im just saying what i have noticed in my personal testing with the car.

4) My last dyno today showed a little higher than i last posted as the car has had time to adapt to the torque settings and DP - V2 DP and pump fuel was 322WHP 405WTQ uncorrected for sea level. You should add roughly 10% for adjustment, that would be 354WHP 445WTQ. All tests on the SAME DYNO hood closed! Please note and a billion people will probably start screaming (Shiv already explained the standard intake is restrictive at 350WHP) that is probably the restriction im seeing now.

I hope i could help you out im probably not even going to answer any of the rants and raves following this post so if you need any more info ill be happy to help just PM me iv done about a hundred logs and dynos at different torque settings so i can send you all the info if you want. Bottom line is M&M and myself are at the dyno everyday testing our cars and trying to tune for our altitude so if you need help PM any one of the two of us!

[astris]

Originally Posted by cvc 22349a

I did. The guy I spoke with last week said he'd inquire and get back to me (never did). Again, he wasn't aware of any testing at this altitude. He even offered to install their software to my ecu at a reduced cost at their facility if I was willing to get a boost gauge and measure at altitude.

But Dinan has done extensive testing right? Waaaay more than anyone else out there. Right?

Sorry, don't mean to poke fun at your situation, I'm just harassing others that think Dinan is all knowing, yet they have done no testing at high altitude. Not to mention they want to use a customer's car test as well. Hmmm....

Hopefully the rep was just misinformed.

[NM_BMW]

Subscribed! This is very interesting as I am at 7,000ft and travel to 5,000ft on occasions. I will also be monitoring boost, but my boost gauge won't arrive till later this week and I just got my LONG serial - usb, so I'll have a better idea what boost I'll be seeing at my 7,000ft. IIRC Shiv mentioned to leave v2 at the 90% and everything should be ok. I"m guessing that this stock setting will also be fine if we went down to sealevel. Now of course if you upped the UT settings you would want to bring them down when you got below 5,000ft and then adjust according. Thomas if you don't mind I"m going to PM you to get your data from your previous runs at different UT settings.

[ThomasMartin]

Originally Posted by Humtek

Subscribed! This is very interesting as I am at 7,000ft and travel to 5,000ft on occasions. I will also be monitoring boost, but my boost gauge won't arrive till later this week and I just got my LONG serial - usb, so I'll have a better idea what boost I'll be seeing at my 7,000ft. IIRC Shiv mentioned to leave v2 at the 90% and everything should be ok. I"m guessing that this stock setting will also be fine if we went down to sealevel. Now of course if you upped the UT settings you would want to bring them down when you got below 5,000ft and then adjust according. Thomas if you don't mind I"m going to PM you to get your data from your previous runs at different UT settings.

No problem with pleasure. Shiv did say if im running high settings to be careful when traveling to the coast cause the car would be boosting far to much so its something to watch and all cars are different so just log what you boosting and watch it when you traveling to lower altitude. But i dont think from 7000-5000 will make much difference because our little turbos are almost maxed out at 5000ft anyway so i dont think you will have much of a problem with it over boosting at 5000 ft

[cvc 22349a]

Originally Posted by astris

But Dinan has done extensive testing right? Waaaay more than anyone else out there. Right?

Sorry, don't mean to poke fun at your situation, I'm just harassing others that think Dinan is all knowing, yet they have done no testing at high altitude. Not to mention they want to use a customer's car test as well. Hmmm....

Hopefully the rep was just misinformed.

He supposedally works in the tech dept. I think he's uninformed because his Company hasn't performed this testing yet, which is interesting to me since they've already released their product.

[cvc 22349a]

For those of you with the Proceed at altitude: do you ever drive down to sea level? If so, do you 'feel' a significant difference in power/acceleration since max boost is the same? Also, do you experience a big drop in power between 6-7k rpm? I definately feel the drop in power between 6&7k rpm at altitude more than at sea level.
Thx

[Insider]

If the Dinan does not adjust at high altitude, then it's pointless to get the Dinan mod. Might as well get the JBS2 as it does allow for factory altitude compensation

[cvc 22349a]

Originally Posted by Insider

If the Dinan does not adjust at high altitude, then it's pointless to get the Dinan mod. Might as well get the JBS2 as it does allow for factory altitude compensation

At this point, I agree with you. I'll still be waiting to hear from Dinan or an owner with the reflash.

[midlife]

Originally Posted by ThomasMartin

..........I hope i could help you out im probably not even going to answer any of the rants and raves following this post so if you need any more info ill be happy to help just PM me iv done about a hundred logs and dynos at different torque settings so i can send you all the info if you want. Bottom line is M&M and myself are at the dyno everyday testing our cars and trying to tune for our altitude so if you need help PM any one of the two of us!

quite a bit of info to digest, but gotta put my kiddies to bed.
tomorrow, i will definitely absorb what u have said and will follow up with you shortly.

btw, how long have u and M&M had your cars? and do you or m&m own the dyno? if not i hope you guys ae really loaded

thanks again, and just try to ignore any silly comments from others.