[Tkent818]

Originally Posted by yokata

Your log is really messed up make log in sport+ trans in sport manual in 4th gear from 2 to 7k rpm WOT to see the full picture

Ok

[Supr3me]

Originally Posted by yokata

For me boost is very low for pure800 ,i have bigger boost on vt gc which is smaller only cold side upgrade

I don't disagree that my goal is higher boost eventually, but I think you might have the logic on this statement backwards. Isn't a larger turbo able to move the same volume of air as a smaller turbo at a lower PSI? So for similar HP/TQ, I would expect your PSI to be slightly lower (Edit: HIGHER) than mine. Someone smarter than me can probably clarify if I've got my physics fucked up.

Also as discussed, it seems like your tune is sacrificing degrees of timing to get that boost level, whereas my tuner seems to be prioritizing timing over boost.

Either way, I'm trusting the process and willing to take baby steps to get there. I'm only 7 revs in which is not crazy compared to what I've seen from others so far.

[yokata]

Originally Posted by Sµpreme

I don't disagree that my goal is higher boost eventually, but I think you might have the logic on this statement backwards. Isn't a larger turbo able to move the same volume of air as a smaller turbo at a lower PSI? So for similar HP/TQ, I would expect your PSI to be slightly lower than mine. Someone smarter than me can probably clarify if I've got my physics fucked up.

Also as discussed, it seems like your tune is sacrificing degrees of timing to get that boost level, whereas my tuner seems to be prioritizing timing over boost.

Either way, I'm trusting the process and willing to take baby steps to get there. I'm only 7 revs in which is not crazy compared to what I've seen from others so far.

Bro your turbo has much more potential then mine ,sorry but u have to run at least 25-26psi for 93pump ,whats your fuel?Ill edit i saw u r running E50 this boost is a joke really...

[Supr3me]

Originally Posted by yokata

Bro your turbo has much more potential then mine ,sorry but u have to run at least 25-26psi for 93pump ,whats your fuel?Ill edit i saw u r running E50 this boost is a joke really...

I see I messed up my previous comment - I'd expect your boost to be *higher* than mine.

[AleksanderSuave]

Originally Posted by OzBMR

This is what the Virtual Dyno comparison looks like. Blue is the standard OTS map and red is the customized map.

VTT GC turbo on E30 would be nice

They sent me another revision today to try. Kinda wondering about it since their Facebook page shows an m140ix on the OTS e30 stage 2+ tune with Supra pump and upgraded plugs hitting a 2.87s 0-60 and dyno of 522 hp

[Nugget]

Originally Posted by Sµpreme

I don't disagree that my goal is higher boost eventually, but I think you might have the logic on this statement backwards. Isn't a larger turbo able to move the same volume of air as a smaller turbo at a lower PSI? So for similar HP/TQ, I would expect your PSI to be slightly lower (Edit: HIGHER) than mine. Someone smarter than me can probably clarify if I've got my physics fucked up.

Also as discussed, it seems like your tune is sacrificing degrees of timing to get that boost level, whereas my tuner seems to be prioritizing timing over boost.

Either way, I'm trusting the process and willing to take baby steps to get there. I'm only 7 revs in which is not crazy compared to what I've seen from others so far.

Yep, boost is just a measure of restriction.
A bigger turbo at the same psi will be moving more air.

[OzBMR]

Originally Posted by AleksanderSuave

They sent me another revision today to try. Kinda wondering about it since their Facebook page shows an m140ix on the OTS e30 stage 2+ tune with Supra pump and upgraded plugs hitting a 2.87s 0-60 and dyno of 522 hp

The Stage2+HPFP E30 OTS tune is pretty strong.

With reduced weight in your car, minimal fuel and remove all loose items etc, good tires, grippy surface and a 1.6 second 60ft time the OTS map should get close to 3.0 second 0 - 60 MPH with M240iX

[AleksanderSuave]

Originally Posted by OzBMR

The Stage2+HPFP E30 OTS tune is pretty strong.

With reduced weight in your car, minimal fuel and remove all loose items etc, good tires, grippy surface and a 1.6 second 60ft time the OTS map should get close to 3.0 second 0 - 60 MPH with M240iX

I should have mentioned I have a full size wheel and tire, jack, tire iron in my car. 140ix should also be a couple hundred pounds lighter overall, from what I remember.

I would say that extra stuff in trunk adds about 30-35 pounds..plus I'm on runflats.

When I get some different wheels, I'll throw the Michelin PS4's on.

I wonder if a Dyno 0-60 as is would produce more accurate results right now, since it isnt based on GPS.

[Supr3me]

Got my rev 1.8 tonight.
Tuner comments were: "Yeah looking good. Increased boost target and adjusted compressor base a bit at the spot that it's over boost target."

I'll let the ECU adapt tomorrow and probably log and upload on Sunday.

[340iNL]

Originally Posted by N420i

Hi everyone!

I'm going crazy with the timing pulls on my car. Tried all stage1 BM3 maps, but the car also does it with the stock tune... Less, but it's still pulling timing

It's an M140i, 45.000 miles on the clock, 93octane gas from reputable gas stations.

Stock tune: You can see there are already corrections in place... And also, isn't the stock map supposed to target much higher timing advance?
https://www.bootmod3.net/log?id=5efe...90c67f338e8b67
https://www.bootmod3.net/log?id=5efe...729b7db9fa96a3

BM3 91octane ACNI (low quality gas map)
https://www.bootmod3.net/log?id=5f06...90c62825d99888
https://www.bootmod3.net/log?id=5f06...729b45a472f8c6

BM3 91octane (Standard 91oct map. Massive, constant corrections
https://www.bootmod3.net/log?id=5efd...90c615fc46da18
https://www.bootmod3.net/log?id=5efd...0b4368f54bfd36 (sorry for the crappy log, forgot to stop the logging)

BM3 93octane
https://www.bootmod3.net/log?id=5f06...729b45a472f8dc
https://www.bootmod3.net/log?id=5f06...729b451dd832b5

Corrections happen all over the rev range. I contacted BM3 and they told me it's bad gas, but I've filled up several times, every time in the biggest brand-name gas stations in Spain, so I find it a little hard to believe. This is compounded by the fact that that stock map also has low timing targets and even then it's still getting pulled...

I'm thinking spark plugs next (they should have around 15.000 miles on them, so it shouldn't be time to replace them yet) but after reading through the first 20 pages of this thread or so, it appears that they help somewhat with the timing pulls but I'm not sure they're gonna fix the MASSIVE correction that's happening here.

At first I though it was the scorching temperatures we're having in Madrid at the moment, close to 39ºC (more than 100ºf), so I started taking the logs at night when they are closer to 25ºC (77ºf) and it did improve somewhat, but it certainly didn't go away...

What else could it be? I'm starting to run out of ideas, and getting desperate...

Thanks!

My timings we're something like this.
Tried almost all fuel brands available in The Netherlands.

I found a gasstation with the cheapest name ever ''tanqyou'' which sells 100+ fuel. After new plugs the car had still some minor timing pulls but better then before with this fuel. Very expensive though on 1,80 euro/liter instead of regular fuel which goes for 1,40 euro/liter.

Also Q8 or Total Excellium 98 fuel seems to do good jobs. A well known tuner from Belgium recommended this fuels, instead of using Shell, BP, etc. which are less quality he told me.

I haven't read much about adding octane booster yet, maybe that would be helpfull? (actually I have no idea)

[IMS-340C]

My experience so far with the B58 if you're not at atleast 12 degrees timing at 6500 RPM it will start losing power.

Originally Posted by yokata

You think with more timing and less boost ill make more power?

[alyabiev]

Originally Posted by IMS-340MP

My experience so far with the B58 if you're not at atleast 12 degrees timing at 6500 RPM it will start losing power.

It's always a balancing act. More boost with less timing can give the same exact power and torque as if it was running less boost and more timing.

In the very basic terms: set up safe timing and safe AFRs, increase torque/load to get boost corresponding close to the edge of the compressor efficiency, then start to add timing advance by 1° until MBT or knock and back off by 2° for safety. Repeat the process with AFRs: lean out until MBT, knock or high EGT, then richen up by 0.4AFR.

[IMS-340C]

Thanks for the detailed information.

I am running low octane and actually my car is faster on 16 psi than 18 psi.

Originally Posted by alyabiev

It's always a balancing act. More boost with less timing can give the same exact power and torque as if it was running less boost and more timing.

In the very basic terms: set up safe timing and safe AFRs, increase torque/load to get boost corresponding close to the edge of the compressor efficiency, then start to add timing advance by 1° until MBT or knock and back off by 2° for safety. Repeat the process with AFRs: lean out until MBT, knock or high EGT, then richen up by 0.4AFR.

[N420i]

Originally Posted by 340iNL

My timings we're something like this.
Tried almost all fuel brands available in The Netherlands.

I found a gasstation with the cheapest name ever ''tanqyou'' which sells 100+ fuel. After new plugs the car had still some minor timing pulls but better then before with this fuel. Very expensive though on 1,80 euro/liter instead of regular fuel which goes for 1,40 euro/liter.

Also Q8 or Total Excellium 98 fuel seems to do good jobs. A well known tuner from Belgium recommended this fuels, instead of using Shell, BP, etc. which are less quality he told me.

I haven't read much about adding octane booster yet, maybe that would be helpfull? (actually I have no idea)

Thanks for the reply!

I'll give Q8 a shot, which is the only available option in Madrid. Even then, it's pretty far from where I live and not on the way to work so I'd have to go there specifically to fill up every time, which is really inconvenient...
I'll swap out the plugs on monday, and I'll look into octane boosters as well...

[340iNL]

Originally Posted by N420i

Thanks for the reply!

I'll give Q8 a shot, which is the only available option in Madrid. Even then, it's pretty far from where I live and not on the way to work so I'd have to go there specifically to fill up every time, which is really inconvenient...
I'll swap out the plugs on monday, and I'll look into octane boosters as well...

Gap the plugs as well to the recommended gap.
Make sure the gastank is nearly empty, mixing fuels won't get the desired results.

I don't know if octane boosters are any good for our engines... Maybe someone can give advice about what to do?

[N420i]

Originally Posted by 340iNL

Gap the plugs as well to the recommended gap.
Make sure the gastank is nearly empty, mixing fuels won't get the desired results.

I don't know if octane boosters are any good for our engines... Maybe someone can give advice about what to do?

I gapped them this afternoon to .70mm, so about .0275 for our american friends.

According to mission performance that's what's recommended for a normal stage 1 tune. .022 and under for stage 2 and beyond.

Yep I always let the tank run down to well below a quarter before refilling.

I'm gonna go out later tonight and do a few pulls on the different maps to see if anything's different. Should be about 24º ambient temperature at 3AM, which is not optimal for taking logs but damnit, I live in Spain, if the car isn't going to run properly with 24º ambient i'm well screwed for about 8 months out of the whole year.

[yokata]

Originally Posted by 340iNL

Gap the plugs as well to the recommended gap.
Make sure the gastank is nearly empty, mixing fuels won't get the desired results.

I don't know if octane boosters are any good for our engines... Maybe someone can give advice about what to do?

Ive tried octane boosters 0 effect...Will see now whats goin on with E

[yokata]

Originally Posted by Sµpreme

I see I messed up my previous comment - I'd expect your boost to be *higher* than mine.

No bro your boost should definitelly be higher then mine on E!I know bigger turbo on same boost flow more ,but again i saw what kind of numbers guys on whatsapp group have on pure800 ,dont make excuses and press your tuner to make a proper tune for your car!

[alyabiev]

Originally Posted by yokata

No bro your boost should definitelly be higher then mine on E!I know bigger turbo on same boost flow more ,but again i saw what kind of numbers guys on whatsapp group have on pure800 ,dont make excuses and press your tuner to make a proper tune for your car!

Do you have an invite link to this group laying around?

[Supr3me]

Originally Posted by yokata

No bro your boost should definitelly be higher then mine on E!I know bigger turbo on same boost flow more ,but again i saw what kind of numbers guys on whatsapp group have on pure800 ,dont make excuses and press your tuner to make a proper tune for your car!

I'm not going to tell my tuner what to do lol.

[Sgm123]

Hi

First time tuning so don’t have a clue what I am looking for but any help will be appreciated. Just loaded in bm3 stage 1 93 map - first log below

https://www.bootmod3.net/log?id=5f0b...0b4306763c0d0d

Thanks again
Stu

[N420i]

Originally Posted by Stu101

Hi

First time tuning so don’t have a clue what I am looking for but any help will be appreciated. Just loaded in bm3 stage 1 93 map - first log below

https://www.bootmod3.net/log?id=5f0b...0b4306763c0d0d

Thanks again
Stu

In general, you're looking for the actual values to line up with the targets for HFPF, Boost, Timing. You also want to be on the lookout for throttle closures and AFRs.

Boost and AFRs look good, the values are perfectly in line with what you'd expect from that map. Boost is reaching the target and isn't spiking, and there don't seem to be any throttle closures.

Timing is a hot mess, pointing to crappy gas, buy many if not most of us running standard 93oct pump gas have that problem. We're leaving a LOT of power on the table and the engine wont pull as smoothly as it should because the ECU is constantly pulling and adjusting timing to prevent knock. You can see this because a: The 6 lines for timing (one per cyl) are all squiggly and separated from each other. In a perfect log they would rise smoothly from very little advance at low revs to about 12º up top in that map I believe, and they would overlap perfectly so you would only see a single line.

You can try flashing the 91 map and running 93 oct gas and see if there is an improvement. There probably will be, but considering how badly your timing is getting pulled in those logs, I wouldn't expect perfect results either.

Also, It'd be helpful if you could add timing corrections and all other parameters outlined in the first post.

EDIT: It's also interesting to keep an eye on the IATs. Yours seem to be around 100f which is warmish... What was the ambient temperature like when the logs were taken?