Click to go to Forum Home Click to go to maXbimmer Home

Go Back   maXbimmer Forums > maXimum Tech > 3 Series > E30 (1983 - 1991)
User Name
Password


Welcome to Maxbimmer.com!

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Reply
 
Thread Tools Rate Thread Display Modes
Old 09-23-2012, 06:58 PM   #121
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
^^^^ all that work... Failed.

Had it all hooked up and was running so lean that the afr maxed out. Im assuming there were a few leaks around the connections.. They were tight but not that tight.. Im going to try again later if i can find the time with some pipe clamps.

The good news is that the fg plenum is much more secure and does not rub anywhere.

So i took out the icv stuff and plugged all the vac openings for it to try again later.

Did find a little vac leak from one of the old lines im using for the fpr log.. Nothing to worry too much about.. But ill get that fixed up too
__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 09-27-2012, 08:50 PM   #122
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
Well... Had a little dyno run at RMP today...

Plugged in the tunerpro rt software and the files purchased from Bmwconnect.

Did some fuel tuning first... Car was still running lean but did a baseline pull of 65whp

Made more changes to the fuel mapping got as high as 70whp... We could not get the fuel to add no matter how high we made the adjustments...

So Rocco had some s52 injectors.. Swapped them in... And put some new plugs... Did a pass 80ish whp..

Did a little more fuel/air adjustments and some timing advancement... 99.6whp...







Thanks to Rocco rmp and bmwconnect and anyone else who helped out!
__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 09-27-2012, 10:08 PM   #123
Bullet Ride
Cars in Perpetual Repair
 
Bullet Ride's Avatar
 
Join Date: Nov 2007
Location: Guelph
Posts: 5,717
Those numbers are pretty low... a healthy M42 should be making ~120whp
Does the dynapac read lower than a typical dynojet?
Either way... big improvement over the baseline... I'm looking forward to taking it for another spin.
__________________

Last edited by Bullet Ride; 09-27-2012 at 10:13 PM.
Bullet Ride is online now   Reply With Quote
Old 09-27-2012, 10:31 PM   #124
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
Quote:
Originally Posted by Bullet Ride View Post
Those numbers are pretty low... a healthy M42 should be making ~120whp
Does the dynapac read lower than a typical dynojet?
I have no clue the difference between the dynos... But still.. A 33whp gain

Yes about 120whp on a newer healthy m42..
Mine has 290000 and im sure its been worn out... Never checked the compression either. All in all car pulls a lot better... Need to do a little street tuning for casual driving.

Im sure there is a few more hp that can be squeezed out of it.. But later on
__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 09-30-2012, 10:02 AM   #125
mr ilia
3rd Gear Member
 
mr ilia's Avatar
 
Join Date: Feb 2012
Location: gta
Posts: 308
Adding power is always good, bu your numbers do not make sense at all.

1 - With the he stock TB setup, did your engine "pull hard"?
2 - Can you feel the difference "before" and after the "tune"?
3 - What is "butt dyno" telling you, if thar is better now with the ITBs than when it was with single TB?singe?
mr ilia is offline   Reply With Quote
Old 09-30-2012, 11:15 AM   #126
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
Quote:
Originally Posted by mr ilia View Post
Adding power is always good, bu your numbers do not make sense at all.

1 - With the he stock TB setup, did your engine "pull hard"?
2 - Can you feel the difference "before" and after the "tune"?
3 - What is "butt dyno" telling you, if thar is better now with the ITBs than when it was with single TB?singe?
1.stock tb with stock chip no... Stock tb with dinan clone chip pulled better
2.itbs before tune running on dinan chip pulled better but not WOT bc it would lean out. 20% - 80% throttle car drove and pulled great... After we tuned the itbs added bigger injectors and got the motor to run safe afr it pulled even better. There is still some fine tuning to be done on the tq/hp curve.

"butt dyno" feels much more responsive and pulls better than stock.

There were a couple of people who drove the car before... When they drive it again they'll feel the diff.

And as i said.. It is not fine tuned yet... I might be able to get maybe 5 more hp but what im looking to get is a better tq/hp curve.

I may have it tuned a bit more by the fall cruise or the next autoslalom event. come and see how it is...
__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 09-30-2012, 02:19 PM   #127
mr ilia
3rd Gear Member
 
mr ilia's Avatar
 
Join Date: Feb 2012
Location: gta
Posts: 308
where you able to get the dyno chart?
mr ilia is offline   Reply With Quote
Old 09-30-2012, 02:46 PM   #128
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
Having trouble uploading it from my phone... Ill try later when i get home later this evening.
__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 09-30-2012, 08:38 PM   #129
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
here it is..

as you can see there is still some fine tuning needed with the tq/hp curve and im sure there is a little more hp to gain as well. we only had 2hrs before i had to leave for my baby classes to get this working in a safe afr.. in that time also included trouble shooting the stock injectors.. installing the s52 injectors and new plugs.. having the engine cool between a few runs.

__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 10-01-2012, 10:37 AM   #130
DR.ZED
3rd Gear Member
 
Join Date: Jun 2003
Location: Toronto, On, CANADA
Posts: 480
Interesting torque curve!
__________________
...
Cam G.
09 Jetta CleanDiesel M6 Highline
85 325e M5
07 Honda Shadow Spirit 750
DR.ZED is offline   Reply With Quote
Old 10-01-2012, 10:56 AM   #131
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
Quote:
Originally Posted by DR.ZED View Post
Interesting torque curve!
Yeah thats pretty funny... Lastnight i was looking at the curve and the fuel/timing map in that area... It showed a higher fuel and timing in that range. So i smoothed out the fuel as rpm rises in that area and retarded the timing a bit but kept it all within safe limits and rpm..

Loaded up that update this morning and my butt dyno noticed a better pull in that range.
__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 10-03-2012, 10:47 PM   #132
SamE30e
6th Gear Member
 
SamE30e's Avatar
 
Join Date: Jul 2007
Location: Milton
Posts: 2,869
Interesting build. Kudo's for tackling it yourself.

I must say that torque curve is interesting.
__________________
91 318is - M50NV (gone)
02 WRB Subaru WRX EJ207 forged, 320 AWHP stock turbo.
85 - 325
02 325i Sedan
SamE30e is offline   Reply With Quote
Old 10-03-2012, 11:18 PM   #133
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
Quote:
Originally Posted by SamE30e View Post
Interesting build. Kudo's for tackling it yourself.

I must say that torque curve is interesting.
Thanks!

Yeah 15ftlbs lost... I messed with it street tuning the fuel and it seemed better. Ill know on the next dyno session.

Also i have been thinking of another plenum design.. One that is more common and a proven design. Something like this...

__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 10-06-2012, 01:05 PM   #134
BMe30
all by chance...
 
BMe30's Avatar
 
Join Date: Mar 2008
Location: mississauga
Posts: 819
So i did that dyno day today... So from that first dyno pull to todays i was messing around with some tunes and this is what i got with a failing fuel pump..



Ill go back once my new tre-340 fuel pump goes in
__________________

Gone but not forgotten
BMe30 is offline   Reply With Quote
Old 10-06-2012, 05:40 PM   #135
Bullet Ride
Cars in Perpetual Repair
 
Bullet Ride's Avatar
 
Join Date: Nov 2007
Location: Guelph
Posts: 5,717
Flattest torque curve ever...
__________________
Bullet Ride is online now   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On

Forum Jump


All times are GMT -4. The time now is 08:29 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.