1
Engine + Driveline / cooler tstat
« on: July 13, 2010, 12:34:03 PM »
Not positive, but I believe they are the same size/shape.
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2
General Topics / Gas Mileage
« on: May 17, 2010, 04:27:34 PM »Quote from: 4banger;89384
my milage actualy increased when i chipped my cars. belive it or not i moved up to 21lb/hr injectors and my milage didnt decrease. best ive seen was about 320 miles out of a tank and that was on a highway trip to indianna last year. i average around 280-290 miles to a tank.
I've seen an increase in mpg every time I add a chip, and again when a good cat-back system is built/installed.
My last car, '95 540i 6-speed, increased about 2 mpg after a cat-back set up was built and another 2-3 after a Dinan chip upgrade.
OP-
Need to check maintenance items as well as considering time spent city vs. freeway driving. Anything related to air/fuel measurement as well as their delivery will influence mpg and performance.
Air:
Intake leaks (vacuum hoses, intake manifold gaskets, etc.)
Air filter
Fuel:
Fuel filter
Fuel pump
Lines good and not leaking
Measuring components;
O2 sensor [ecu makes fuel adjustments based on exhaust gas]
AFM (air flow meter) [measures air going in]
Coolant temp sensor (in radiator) [measures engine temp and ecu adjusts accordingly]
TPS (throttle position sensor) [tells ecu how to adjust fuel according to throttle position]
Those are the basics. Lots of small contributing factors but that'll get you started on maintenance items.
3
Electrical / E30 318is Custom LED Tails (Videos)
« on: November 07, 2009, 12:02:42 PM »
I wish this forum would send me e-mail updates...
Thanks for the additional info and the link!
Thanks for the additional info and the link!
4
Electrical / Alternator charging issues
« on: October 26, 2009, 09:08:37 PM »
Yep, that was it! Made a new strap out of some 4 gauge wire. I'm still baffled cause I really don't remember taking it off and it isn't in any of my build pictures.
Next up, upgrading all of the other ground/power wires. I can't imagine the power wires will be happy after upgrading from 80A to 105A alternator.
Next up, upgrading all of the other ground/power wires. I can't imagine the power wires will be happy after upgrading from 80A to 105A alternator.
5
Electrical / Alternator charging issues
« on: October 25, 2009, 07:57:20 PM »
Alright guys, I need some help diagnosing a intermittent charging problem. I haven't posted much here on M42club but many of you probably know me from r3v or bimmerforums.
History, rebuilt this 1991 318i over the summer. Look at the link in my sig if you want details on it. When I was done (more or less) and went to drive the car I found the alternator to be dead. Picked up a 90A Bosch rebuilt alternator and problem seemed to be solved.
-Put about 6-700 miles on it over the course of the next 3-4 weeks and then was having issues with the battery not holding a charge. It was an old battery (2002) so no big deal.
- 5 days later the car died on me while driving. Replaced the alternator with another Bosch reman'd unit, this time I was able to find a 105A. I have about 1300 watts for my stereo so I was excited about this!
- 3 days later I decide to check things out and sure enough, no charge coming from the alternator.
Now, it's VERY strange for a Bosch reman'd unit to be bad so I'm suspect of something in the car. However, the case says Valeo and that weirds me out if it's a Bosch alternator. The warranty card and box both say Bosch however.
Over the last 3 days of diag here is what I have observed and checked.
1) I noticed that after the battery being out for a few days, when I put it back in the alternator was charging again. After a 10 minute drive it stopped working again.
2) After double checking and cleaning every ground and terminal off, it started working, but again stopped after 10 minutes of driving.
3) When key is in the 'on' position and the battery light illuminates the alternator works. When it does not, the alternator does not charge.
4) I pulled the gauge cluster and checked the resistance. Everything is good and the bulb works. The cluster/bulb is clearly not the issue. Measured .03 with my dmm set to 2k ohm reading.
5) There is power getting to the green wire on the cluster connector. I may have had a poor ground since it read 11.83V rather than 12.3V at the battery and distribution block.
6) Voltage drop from the distribution block to that wire was good. I believe it registered at .3 on the meter. That's fine.
7) Resistance measured .118 (same ohm setting on the dmm) between the alternator case and the block as well as the ground point for the ABS and headlights.
At this point I'm completely confused with what's going on. It either seems like I'm completely missing a ground, or something didn't get replaced in both alternators that should have been replaced.
Here's one interesting thing I found someone else posted:
Now I really think I would remember taking that off when I was in there, but I don't. That's my only possible idea at this point.
The only other item that strikes me as off is that everything was fine until I replaced the battery. After that point I've had issues. Yes, I did have them give me a different new battery as well.
Any thoughts? Appreciate the help!!
History, rebuilt this 1991 318i over the summer. Look at the link in my sig if you want details on it. When I was done (more or less) and went to drive the car I found the alternator to be dead. Picked up a 90A Bosch rebuilt alternator and problem seemed to be solved.
-Put about 6-700 miles on it over the course of the next 3-4 weeks and then was having issues with the battery not holding a charge. It was an old battery (2002) so no big deal.
- 5 days later the car died on me while driving. Replaced the alternator with another Bosch reman'd unit, this time I was able to find a 105A. I have about 1300 watts for my stereo so I was excited about this!
- 3 days later I decide to check things out and sure enough, no charge coming from the alternator.
Now, it's VERY strange for a Bosch reman'd unit to be bad so I'm suspect of something in the car. However, the case says Valeo and that weirds me out if it's a Bosch alternator. The warranty card and box both say Bosch however.
Over the last 3 days of diag here is what I have observed and checked.
1) I noticed that after the battery being out for a few days, when I put it back in the alternator was charging again. After a 10 minute drive it stopped working again.
2) After double checking and cleaning every ground and terminal off, it started working, but again stopped after 10 minutes of driving.
3) When key is in the 'on' position and the battery light illuminates the alternator works. When it does not, the alternator does not charge.
4) I pulled the gauge cluster and checked the resistance. Everything is good and the bulb works. The cluster/bulb is clearly not the issue. Measured .03 with my dmm set to 2k ohm reading.
5) There is power getting to the green wire on the cluster connector. I may have had a poor ground since it read 11.83V rather than 12.3V at the battery and distribution block.
6) Voltage drop from the distribution block to that wire was good. I believe it registered at .3 on the meter. That's fine.
7) Resistance measured .118 (same ohm setting on the dmm) between the alternator case and the block as well as the ground point for the ABS and headlights.
At this point I'm completely confused with what's going on. It either seems like I'm completely missing a ground, or something didn't get replaced in both alternators that should have been replaced.
Here's one interesting thing I found someone else posted:
Now I really think I would remember taking that off when I was in there, but I don't. That's my only possible idea at this point.
The only other item that strikes me as off is that everything was fine until I replaced the battery. After that point I've had issues. Yes, I did have them give me a different new battery as well.
Any thoughts? Appreciate the help!!
6
Electrical / E30 318is Custom LED Tails (Videos)
« on: October 25, 2009, 07:34:59 PM »
Excellent, thanks!
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Electrical / E30 318is Custom LED Tails (Videos)
« on: October 24, 2009, 04:46:58 PM »
That's awesome! I'd love to learn how to make those.
8
Swaps, Turbos, Buildups / My M42 turbo build
« on: August 09, 2008, 11:17:08 AM »
This is the second time I have seen people using M/S50 ebay manifold with the extra 2 cylinders cut off.
Curious if you have any more thoughts on going that route vs. buying one specifically for the M42. Obviously price is the biggest factor. Power numbers could potentially be lowered or at least not optimal..... but if that were the case cost would outweigh the loss (which would be minimal I would guess). Any fitment issues using that manifold trimmed down?
Thanks!
Curious if you have any more thoughts on going that route vs. buying one specifically for the M42. Obviously price is the biggest factor. Power numbers could potentially be lowered or at least not optimal..... but if that were the case cost would outweigh the loss (which would be minimal I would guess). Any fitment issues using that manifold trimmed down?
Thanks!
9
Swaps, Turbos, Buildups / Top Mount Turbo Manifold
« on: August 09, 2008, 11:07:22 AM »
VERY good price!
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