E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Australia > Slight Improvement in Drag Times



Reply
 
Thread Tools Search this Thread
      04-11-2016, 10:28 AM   #23
CashedUpBogan
Lieutenant Colonel
281
Rep
1,808
Posts

Drives: State Transit Bus
Join Date: Sep 2014
Location: Australia

iTrader: (0)

Quote:
Originally Posted by bmwheath
Quote:
Originally Posted by Coupes33 View Post
It would be great to see a 10s pass from your car. Torque is the main ingredient for getting good times and getting it at the correct revs for launching with the tune is imperative. I cannot wait to get my car on the dyno to see where the torque curve sits with the PTF tune.
I dont think i will get a 10 with the Hexon RR600's, but i need a figure to aim for. Unfortunately the 700's wern't available when i purchased.
When will you be dynoing your ride mate??
They were available when you purchased, just not called RR700s yet lol
Everyone on the gb was given a chance to change their initial order to the stage 2+ betas but no one wanted to for some reason
Appreciate 0
      04-11-2016, 05:23 PM   #24
DR-JEKL
Major General
Australia
898
Rep
6,285
Posts

Drives: Space Grey E92 335i 6MT
Join Date: Jul 2012
Location: Newcastle Ozstraylia

iTrader: (3)

Quote:
Originally Posted by CashedUpBogan View Post
They were available when you purchased, just not called RR700s yet lol
Everyone on the gb was given a chance to change their initial order to the stage 2+ betas but no one wanted to for some reason
No-one had brass balls big enough, it's all about the lag!!
Appreciate 0
      04-11-2016, 06:26 PM   #25
bmwheath
11 second stock turbo club. 11.6@120mph
bmwheath's Avatar
115
Rep
1,181
Posts

Drives: 2007 335i
Join Date: Jan 2015
Location: Australia

iTrader: (0)

Quote:
Originally Posted by DR-JEKL View Post
No-one had brass balls big enough, it's all about the lag!!
Haha yes. And they were $1000 or so more expensive
__________________
JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
Appreciate 0
      04-11-2016, 07:28 PM   #26
tawfeeqh
Major
Australia
162
Rep
1,175
Posts

Drives: 2007 BMW e90 335i
Join Date: Jun 2015
Location: Melbourne, Australia

iTrader: (0)

Quote:
Originally Posted by bmwheath
Quote:
Originally Posted by DR-JEKL View Post
No-one had brass balls big enough, it's all about the lag!!
Haha yes. And they were $1000 or so more expensive
$1200 to be exact
Appreciate 0
      04-11-2016, 08:10 PM   #27
Coupes33
Major
373
Rep
1,392
Posts

Drives: 2006 335i, 2017 Audi S3
Join Date: Aug 2013
Location: Brisbane, QLD, Australia

iTrader: (0)

Some statistics from analysing the datalogs of both runs.

11.714@120 11.693@125
Launch RPM 2,800 2,700
Launch Boost 5.12psi 3.64psi

I changed gear 1st-2nd at 5,000rpm by the BMW tacho to allow for the lag in the gear change, speed of acceleration in 1st gear and the lag in the BMW tacho.

Max RPM in 1st 6,771 6,784
5,000-Max RPM 1st 0.48s 0.56s
Boost drop 1st-2nd 12.96>10.38>12.86psi 13.48>6.11>10.24psi
Duration of boost drop 0.32s 0.46s
Max RPM - 2nd 6,887 6,803
Max RPM - 3rd 6,725 6,590
Max RPM - 4th 6,269 6,539

I need to remove the boost drop 1st - 2nd as it is costing me time in building the boost back up. The rest of the run is quite good with the max boost reaching 26psi for a split second.
Appreciate 0
      04-11-2016, 11:13 PM   #28
bmwheath
11 second stock turbo club. 11.6@120mph
bmwheath's Avatar
115
Rep
1,181
Posts

Drives: 2007 335i
Join Date: Jan 2015
Location: Australia

iTrader: (0)

Yeah mate that boost drop is costing you an initial 0.14 seconds. What tune are you on again?
Have you tried launching from 2nd gear?
__________________
JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
Appreciate 0
      04-12-2016, 12:39 AM   #29
Coupes33
Major
373
Rep
1,392
Posts

Drives: 2006 335i, 2017 Audi S3
Join Date: Aug 2013
Location: Brisbane, QLD, Australia

iTrader: (0)

Quote:
Originally Posted by bmwheath View Post
Yeah mate that boost drop is costing you an initial 0.14 seconds. What tune are you on again?
Have you tried launching from 2nd gear?
The tune is an E60 PTF custom tune. During the 1st / 2nd gear change on the 11.693s run, the reason for the boost dropping to 6psi could be that I exceeded the optimal rev limit because it did momentarily die on the gear change. I will try changing gears a little earlier next time to see if this solves the issue. It could also be something to do with the Hobb switch on the TBI requiring some adjustment. It is currently set to activate at 15psi. I should mention that using the N20 MAP and Maxboost, the boost data in the logs is true up to 10psi and then any value over 10psi must be doubled and added to the 10psi e.g. 13psi boost in log is actually 10 + (3 X 2) = 16psi. The boost prior to the gear change was 13.48 (16.96psi) and then during the change, it dropped below 15psi which would turn off the TBI. The TBI going on, off and back on again momentarily could be the issue. The solution could be to get the boost higher on launch and this will result in a higher boost at the gear change above the activation level of the Hobb switch.

I haven't recently tried the second gear launch but it is something that can be tried. I have tried it in the past without success i.e. times were slower than using 1st.
Appreciate 0
      04-12-2016, 06:00 AM   #30
bmwheath
11 second stock turbo club. 11.6@120mph
bmwheath's Avatar
115
Rep
1,181
Posts

Drives: 2007 335i
Join Date: Jan 2015
Location: Australia

iTrader: (0)

Sounds like you know whats going on there. From memory i received the 4psi switch (correction, 15psi). Im going threw a whole lot of Overboost & Underboost fault codes at the moment. Waiting till tomorrow to fill up with E70 and take another log
__________________
JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim

Last edited by bmwheath; 04-22-2016 at 05:21 AM..
Appreciate 0
      04-12-2016, 06:50 PM   #31
Coupes33
Major
373
Rep
1,392
Posts

Drives: 2006 335i, 2017 Audi S3
Join Date: Aug 2013
Location: Brisbane, QLD, Australia

iTrader: (0)

Quote:
Originally Posted by bmwheath View Post
Sounds like you know whats going on there. From memory i received the 4psi switch. Dont get me started on TBI lol. Im going threw a whole lot of Overboost & Underboost fault codes at the moment. Waiting till tomorrow to fill up with E70 and take another log
The Hobb switch on the TBI comes with the boost trigger set at 15psi. The trigger setting can be changed up (clockwise) or down (counter clockwise) using a 7/16' allen key. I will log the HPFP performance next time I run and see how it is handling the extra flow requirements of the E60. It will interesting to see how yours handles the E70. I cannot see how the TBI would be causing your overboost and underboost issues. Hope you sought it out soon.
Appreciate 0
      04-12-2016, 09:00 PM   #32
tawfeeqh
Major
Australia
162
Rep
1,175
Posts

Drives: 2007 BMW e90 335i
Join Date: Jun 2015
Location: Melbourne, Australia

iTrader: (0)

Thats some pretty detailed analysis you're doing on your 1/4 logs Coupes33 love it. Agree the boost dropping off is costing you a bit. I also logged my 12.3 sec pass on the stockers so will compare and see how my one looks with respect to post shift boost drop
Appreciate 0
      04-13-2016, 03:52 AM   #33
bmwheath
11 second stock turbo club. 11.6@120mph
bmwheath's Avatar
115
Rep
1,181
Posts

Drives: 2007 335i
Join Date: Jan 2015
Location: Australia

iTrader: (0)

Quote:
Originally Posted by Coupes33 View Post
The Hobb switch on the TBI comes with the boost trigger set at 15psi. The trigger setting can be changed up (clockwise) or down (counter clockwise) using a 7/16' allen key. I will log the HPFP performance next time I run and see how it is handling the extra flow requirements of the E60. It will interesting to see how yours handles the E70. I cannot see how the TBI would be causing your overboost and underboost issues. Hope you sought it out soon.
There are 2 different Hobbs switches for the TBI kits, 4psi & 15psi, both switches can be adjusted up or down 3-4psi either way as you have mentioned. Ill let you know how the E70 logs tonight, if i can get in a clean run without the CEL kicking in. In all the faults i have had ive never had a Low boost or High boost fault code, and now i have both at the same time?
This is a Tribela custom tune we are working on, hopefully he can get to the bottom of it soon as its costing me a fortune in fuel (on my 2nd full tank) and risking my licence unnecessarily
__________________
JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
Appreciate 0
      04-13-2016, 04:53 PM   #34
Coupes33
Major
373
Rep
1,392
Posts

Drives: 2006 335i, 2017 Audi S3
Join Date: Aug 2013
Location: Brisbane, QLD, Australia

iTrader: (0)

Quote:
Originally Posted by bmwheath View Post
There are 2 different Hobbs switches for the TBI kits, 4psi & 15psi, both switches can be adjusted up or down 3-4psi either way as you have mentioned. Ill let you know how the E70 logs tonight, if i can get in a clean run without the CEL kicking in. In all the faults i have had ive never had a Low boost or High boost fault code, and now i have both at the same time?
This is a Tribela custom tune we are working on, hopefully he can get to the bottom of it soon as its costing me a fortune in fuel (on my 2nd full tank) and risking my licence unnecessarily
Having the 4psi Hobb switch would mean a % of fuel would be going into the engine through the TBI rather than the direct injection from a low rpm. As this fuel in not well distributed to each cylinder through the manifold and the quantity would be constant, I was wondering how the ECU through the info from the oxygen sensors determine how much fuel the direct injection system must deliver. Whether this is your issue I don't know. It is just a thought. With the 15psi Hobb switch, the TBI doesn't come into play until your WOT and further up in the rev range. How did your E70 log go?
Appreciate 0
      04-17-2016, 04:37 AM   #35
bmwheath
11 second stock turbo club. 11.6@120mph
bmwheath's Avatar
115
Rep
1,181
Posts

Drives: 2007 335i
Join Date: Jan 2015
Location: Australia

iTrader: (0)

Quote:
Originally Posted by Coupes33 View Post
Having the 4psi Hobb switch would mean a % of fuel would be going into the engine through the TBI rather than the direct injection from a low rpm. As this fuel in not well distributed to each cylinder through the manifold and the quantity would be constant, I was wondering how the ECU through the info from the oxygen sensors determine how much fuel the direct injection system must deliver. Whether this is your issue I don't know. It is just a thought. With the 15psi Hobb switch, the TBI doesn't come into play until your WOT and further up in the rev range. How did your E70 log go?
I think i have a sensor issue, either TMAP or inlet manifold sensor. Also quiet possibly need to reflash software on the DME as a few others have had a similar issue. I have a new TMAP sensor so it shouldn't be faulty. My fault codes below. Ignore the 1st fault code, that has been removed from the flash. Problem now is finding any spare time to sought it out
Attached Images
 
__________________
JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim

Last edited by bmwheath; 04-22-2016 at 05:19 AM..
Appreciate 0
      04-17-2016, 05:27 AM   #36
bradsm87
Lieutenant Colonel
Australia
592
Rep
1,693
Posts

Drives: F25 LCI xDrive30d
Join Date: Jun 2013
Location: Australia

iTrader: (0)

When you say boost drop, do you mean boost is lower when second engages due to large turbo spool time or is there an issue?
Appreciate 0
      04-17-2016, 05:59 AM   #37
DR-JEKL
Major General
Australia
898
Rep
6,285
Posts

Drives: Space Grey E92 335i 6MT
Join Date: Jul 2012
Location: Newcastle Ozstraylia

iTrader: (3)

I recall reading a few guys had issues with the oring fitment on the upgraded tmap sensor, maybe check that
Appreciate 0
      04-18-2016, 04:50 AM   #38
Coupes33
Major
373
Rep
1,392
Posts

Drives: 2006 335i, 2017 Audi S3
Join Date: Aug 2013
Location: Brisbane, QLD, Australia

iTrader: (0)

Quote:
Originally Posted by bmwheath View Post
I think i have a sensor issue, either TMAP or inlet manifold sensor. Also quiet possibly need to reflash software on the DME as a few others have had this same issue. I have a new TMAP sensor so it shouldn't be faulty. My fault codes below. Ignore the 1st fault code, that has been removed from the flash. Problem now is finding any spare time to sought it out
Is the new TMAP sensor standard or N20 TMAP? By the Bentley Service Manual, 2ABD is Turbocharger Boost Sensor 'A' Circuit Range/Performance or Turbocharger Boost Sensor 'A' Circuit High and 2ABC is Turbocharger Boost Sensor 'A' Circuit Low. It appears to be something not functioning correctly with the sensor or wiring connection.
Appreciate 0
      04-22-2016, 05:02 AM   #39
tawfeeqh
Major
Australia
162
Rep
1,175
Posts

Drives: 2007 BMW e90 335i
Join Date: Jun 2015
Location: Melbourne, Australia

iTrader: (0)

Just ran a 12.1 @ 118mph (FBO stock turbos e60 MHD custom flash)

Imrovement from 12.4 last month. Car has remained the same (with crappy street tyres 265 kumhos) just brake boosted slightly higher 1700 rpm and shifted manualy.

I reckon could get a high 11 with some nitto's
Appreciate 0
      04-22-2016, 05:10 AM   #40
bmwheath
11 second stock turbo club. 11.6@120mph
bmwheath's Avatar
115
Rep
1,181
Posts

Drives: 2007 335i
Join Date: Jan 2015
Location: Australia

iTrader: (0)

Quote:
Originally Posted by tawfeeqh View Post
Just ran a 12.1 @ 118mph (FBO stock turbos e60 MHD custom flash)

Imrovement from 12.4 last month. Car has remained the same (with crappy street tyres 265 kumhos) just brake boosted slightly higher 1700 rpm and shifted manualy.

I reckon could get a high 11 with some nitto's
Great work mate. Try brake boost at about 2200rpm if you dont have slicks, remember to shift early as the car takes awhile to shift. Are you shifting gear just before the line?
__________________
JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
Appreciate 0
      04-22-2016, 05:18 AM   #41
bmwheath
11 second stock turbo club. 11.6@120mph
bmwheath's Avatar
115
Rep
1,181
Posts

Drives: 2007 335i
Join Date: Jan 2015
Location: Australia

iTrader: (0)

Quote:
Originally Posted by Coupes33 View Post
Is the new TMAP sensor standard or N20 TMAP? By the Bentley Service Manual, 2ABD is Turbocharger Boost Sensor 'A' Circuit Range/Performance or Turbocharger Boost Sensor 'A' Circuit High and 2ABC is Turbocharger Boost Sensor 'A' Circuit Low. It appears to be something not functioning correctly with the sensor or wiring connection.
Thanks coupes. Ive tried both my 3.5 bar TMAP sensor & also the factory sensor. Today we also swapped out the inlet manifold sensor with 1 off a 135i and still the same fault codes appear. It has me stumped at the moment. Have checked all fittings & connections, even pulled intercooler piping off to check for leaks just for the hell of it.
What is the boost sensor "A" circuit?
I wonder if this a DME issue? I installed a new DME with the later IJOES software. Any thoughts from the tech boys??
__________________
JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
Appreciate 0
      04-22-2016, 05:18 AM   #42
tawfeeqh
Major
Australia
162
Rep
1,175
Posts

Drives: 2007 BMW e90 335i
Join Date: Jun 2015
Location: Melbourne, Australia

iTrader: (0)

Quote:
Originally Posted by bmwheath
Quote:
Originally Posted by tawfeeqh View Post
Just ran a 12.1 @ 118mph (FBO stock turbos e60 MHD custom flash)

Imrovement from 12.4 last month. Car has remained the same (with crappy street tyres 265 kumhos) just brake boosted slightly higher 1700 rpm and shifted manualy.

I reckon could get a high 11 with some nitto's
Great work mate. Try brake boost at about 2200rpm if you dont have slicks, remember to shift early as the car takes awhile to shift. Are you shifting gear just before the line?
Cool will try launching a bit harder next run. My 60ft could improve its 1.9 sec.

Yep shifting as soon as I hit 6000 rpm. I dont have a1 kickdown blocker so launching in 1st gear. When I launch should I shift earlier i.e. before 6000 rpm?

And is 6k shift right for all other gears?
Appreciate 0
      04-22-2016, 05:27 AM   #43
bmwheath
11 second stock turbo club. 11.6@120mph
bmwheath's Avatar
115
Rep
1,181
Posts

Drives: 2007 335i
Join Date: Jan 2015
Location: Australia

iTrader: (0)

Quote:
Originally Posted by tawfeeqh View Post
Cool will try launching a bit harder next run. My 60ft could improve its 1.9 sec.

Yep shifting as soon as I hit 6000 rpm. I dont have a1 kickdown blocker so launching in 1st gear. When I launch should I shift earlier i.e. before 6000 rpm?

And is 6k shift right for all other gears?
Well each car/setup will be a little different, do you have alpina flash? Try compare some clean runs at different shift points. I found less revs from 1st to 2nd gear worked best for me.
Remember shifting at 6000rpm is more like 6600rpm, try closely watching your tacho needle next time you go down the track you will see what i mean.
Whats your drag setup? How much fuel? Whats your average ignition at in the logs? A bit of octane may help. Passenger seat removed? What tyre pressure? You getting any wheelspin? What suspension are you on?
__________________
JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
Appreciate 0
      04-22-2016, 05:28 AM   #44
tawfeeqh
Major
Australia
162
Rep
1,175
Posts

Drives: 2007 BMW e90 335i
Join Date: Jun 2015
Location: Melbourne, Australia

iTrader: (0)

Quote:
Originally Posted by bmwheath
Quote:
Originally Posted by tawfeeqh View Post
Cool will try launching a bit harder next run. My 60ft could improve its 1.9 sec.

Yep shifting as soon as I hit 6000 rpm. I dont have a1 kickdown blocker so launching in 1st gear. When I launch should I shift earlier i.e. before 6000 rpm?

And is 6k shift right for all other gears?
Well each car/setup will be a little different, do you have alpina flash? Try compare some clean runs at different shift points. I found less revs from 1st to 2nd gear worked best for me.
Remember shifting at 6000rpm is more like 6600rpm, try closely watching your tacho needle next time you go down the track you will see what i mean
Yes i have alpina flash. And yeh i noticed by the time it shifts and engages its +500rpm
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 11:01 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST