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Messages - ding

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Figured we should have a thread for people to share videos or sites that help with the basics of tuning AFR, and timing.  So if anyone has any, please post them here. 

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Projects / Re: e36 m52 OBD1
« on: May 02, 2014, 03:27:01 PM »
Haven't been getting much done on the car of late. I just reinforced the subframe and RTAB pockets and added a AA diff support brace.  Finally got to drive it on the street today, played with the tuning a bit, was having issues at first, but I called in today and tech support told me I might not have been hitting enter when changing my rev limit, so that might have been it.  Will try again and report back after I get some solid time in driving it.






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Naturally Aspirated Tuning / NA m5x AFRs
« on: December 28, 2013, 02:49:20 PM »
Just looking to get an idea of what people are seeing at idle.  I've seemed to get my idle under control, and I have my m52 with 21s and a 3.5 maf up and running but I'm seeing around 17.0 afr at warmed up idle.   I was running super rich with a turner chip and my 3.0 maf, but my maf might have been bad.

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Naturally Aspirated Tuning / Re: Surging Idle after motor swap
« on: December 17, 2013, 01:32:07 PM »
Well I have my new maf, but haven't tried it yet, as I've been running my turner chip that was made for this motor, but with a 3.0 maf. 

But I'm having a new issue, that might be related to why my 3.5 maf didn't work.  With the 3.0 maf plugged in, my afr is maxing the gauge out on rich, and it smells really rich, like burning your eyes rich.  If I unplug the maf it goes to 14.3,  its cold. . Before I started I had new cam, and knock sensors, and I just replaced the crank sensor.  So I'm unsure on what to try next, I'm debating on trying the war chip again with 3.5 maf to see where my AFRs are at.

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Naturally Aspirated Tuning / Re: Database for Tunes
« on: December 10, 2013, 07:02:39 AM »
Hi All, I thought I posted my question previously, maybe wrong place. Here goes; '97 M3 track car only, S52B32 motor, M50 manifold, OBDI w/  413 Bosch Red Label, race exhaust (3" S.S. Straight thru w/ magnaflow muffler on stock M3 exhaust headers. Intake side has trac control TB removed, aftermarket smooth intake tubing between TB and manifold, stock 3" MAF, cold air dinan intake. We put in 24 lb. injectors (don't know if that was unnecessary), the motor spends much of its life at full throttle.  Looking at the tunes that came w/ the WAR chip, any recommendations which one, or is there a better tune out there? We discussed going to a good quality 3.5" MAF and larger intake piping to go with it. Our thinking is that with the M50 manifold, and straight thru exhaust, maybe we should increase intake diameter to take advantage of better exhaust breathing. I love opinions.


http://forums.millerperformancecars.com/index.php?topic=43.0

This thread has all the tunes they have tested for your ECU.  You might have to change back to 21lb injectors, but you might be able to play with it and make it work.

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Naturally Aspirated Tuning / Re: which tune to use, M50 or M52?
« on: December 04, 2013, 10:10:07 AM »
dd you try both tunes? i mean:
1. m50 tune, with stock m50 injectors and 3" maf?
then went to use:
2. M52 tune, with 21# injectors and 3.5" maf?

if you tried both of them, did you notice any difference in performance?

I have tried both tunes, but I haven't been able to get my 3.5 maf and tune to work correctly, I think the maf might be busted.  So until then I don't know, my m50 tune runs pretty strong though.

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Naturally Aspirated Tuning / Re: Advice for m50b25tu with m54b30 intake cam
« on: December 03, 2013, 02:22:44 PM »
m54b30 Intake Cam = 240* @9.7 lift
s50/s52 Intake Cam = 252*@10.2 lift
m50tu Intake Cam = 228*@9mm lift

Non Vanos m50 Intake Cam = 240*@9.7mm lift
s50/s52 Exhaust cam =240*@9.7mm lift
m50tu Exhaust Cam =228*@9mm lift

So its not quite a set of s50/52 cams, but its really close and much cheaper.  I do know that you need to shave 5mm off the end of the m54 cam, as its a dual vanos cam, so it wasn't really made to work in the m50tu head, and you might need the tray and lifters as well from the m54, I forget.


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Naturally Aspirated Tuning / Re: Advice for m50b25tu with m54b30 intake cam
« on: December 02, 2013, 03:23:05 PM »
I would this the s50 cams tune would be very close if you used the m50nv cam for the exhaust, as the profile is close ish.

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Naturally Aspirated Tuning / Re: Surging Idle after motor swap
« on: December 02, 2013, 06:18:31 AM »
Ok so its ether the tune for the 3.5 maf that is listed here or the 3.5 maf itself. As when I switched to the m50 performance tune and put my 3.0 maf in place it runs fine.

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Naturally Aspirated Tuning / Re: Advice for m50b25tu with m54b30 intake cam
« on: December 02, 2013, 06:17:30 AM »
What exhaust cam will you be using, m50nv intake?

It seems like at this time they don't have a tune for that setup, and will probably tell you to start with the m50 performance.  But I could be wrong,  I plan on running the m54 intake and m50nv intake in the future, so hopefully it works out for you, and we can share some info.

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Naturally Aspirated Tuning / Re: Surging Idle after motor swap
« on: November 30, 2013, 08:39:21 AM »
Another update here,  okay, so after talking with a friend he suggested maybe the coolant temp sensors were reversed, so I pulled up my instructions from turner for the coolant wiring adapter and found that yes in fact it does matter which coolant sensor wire is plugged into the which part of the harness, the one with the yellow wire needs to be plugged into the longer of the two plugs.  I did this, and now it only maybe revs up one or two times on start, and then settles down to 950rpms.  Now when I try to hold 3k or so rpms it will drop and pick back up again, as seen in this video.

http://youtu.be/5yTIDW9YeSo

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Naturally Aspirated Tuning / Re: Surging Idle after motor swap
« on: November 29, 2013, 02:02:42 PM »
Ok wanted to update, in case ether I figure it out soon or anyone has some ideas of of what I have now found.

I have changed out the Fuel Rail, Injectors, and Regulator, same issue. Then I went through the wiring with an OHM meter and found the vanos and intake air temp sensor were swapped. Switch this back and then reinstall the intake and everything, still did it, so I pulled the elbow a bit and let it smooth out and then once it got warm I put the elbow back on and it was idling fine. So then I let it warm up a bit and gave it some throttle but it fulls off, just like how it did before at idle, but now on throttle. So ether I still have some wiring issue, or maybe my crank sensor is causing this?? Still haven't replaced it yet. I'm letting the motor cool back down and I'm going to try at it again later today.

As for the x20 connector being different I found this thread.

http://forums.bimmerforums.com/forum/showthread.php?1884583-A-318Ti-6cyl-swap-and-supercharger-build/page4

Which has a ton of info on that connector and found that seeing my car use to be an auto is why those pins are different. This explains why my reverse lights don't work.

Again any info on my issue would be great, and hopefully if someone runs into this same issue in the future all my info here will help them.

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Naturally Aspirated Tuning / Surging Idle after motor swap
« on: November 28, 2013, 06:56:27 AM »
First of I wanted to state I in know way think this is related to the tune or ECU,  I just wanted to see if anyone had any ideas one what to try to fix this issue.

I'm in the process of swapping a m52 into my 1992 325i, using an 95 m3 harness. Got the new to me motor, did all the gaskets, other than head and timing cover, got the sensors from a 93-95 that I needed, knock, cam, and coolant temp adapter. Moved over my crank sensor from my 92, as well as my ICV and CCV setup. Using pink top injectors, OBD1 fuel rail and m50 manifold, have tried both an 93-95 maf, and a 3.5 maf from a 540.

Started buy getting the motor in and not being able to start, first found I had be trying to pump fuel into the return line, as I swapped the lines that connect right buy the throttle body. Once I figured that out, I found that not having the TCM plugged into the chip, means it doesn't start. So I plugged that in then it started fine, but I get this surging idle, which you will see in the attached video, goes from 1200 to 3k. I have swapped ICVs, checked for vacuum leaks, and ran a peake research tool on it. The main code I'm getting is a Intake Air Temp, error, and a Control Supply Unit error. Now these could be to do with me testing and trying things when I was working to get it to idle correctly. Disconnecting TPS, or MAF, makes the issue much worse. Disconnecting crank sensor changes nothing. Disconnecting ICV seemed to make it just a bit worse. And as you'll see in the video, disconnecting the elbow just a bit to let in more air, past the MAF, makes it idle better, but still higher rpms, like 1500.

So it seems I'm running super rich. I haven't connected my wideband to test, but it seems to be the issue. So I'm looking for ideas here. I'm thinking of testing a new fuel rail and/or injectors with a new fuel pressure regulator, as I wonder if I broke it, pushing fuel into the wrong side of it. Also I wonder if maybe my crank sensor could do this, but doesn't seem likely.

Lastly two other issues that may or not be related, my 95 engine harness's x20 round connector is missing pins 1,2,3, and 9. Where my chassis side of that connector on my 92 325i (was an auto) is missing 1,2,9,10. So I'm not sure if that will cause any related issues, I'm doubting it, but I'd like to know what it effects. And lastly an relay back by the heater core and brake booster is making a noise like a relay flipping on and off.

Thanks for any help, I'm going to keep working on it, but any pointers would be great.

http://youtu.be/Ts8umJCAScQ

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Naturally Aspirated Tuning / Re: which tune to use, M50 or M52?
« on: November 28, 2013, 06:52:59 AM »
I'm sort of in the same boat here, I am putting an m52 in my obd-1 car, I was told the m50 performance tune is a great place to start by brody.  And honestly I have heard of many people running m52s with stock or performance tunes and it running fine, just not making max power.  I will say in my case I just went ahead and got 21/lb injectors and 3.5 maf, as there was a base tune made for it already.

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Projects / Re: e36 m52 OBD1
« on: November 19, 2013, 08:04:29 AM »
Decided to get a 3.5 maf so I could use one of the base tunes already made for my setup.  Need to figure out what I'm doing for air intake in front of that now.

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