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My HMT e30 now with a burnout video

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Old 10-11-2008, 03:14 AM
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Default Re: My HMT e30

Do ALL e30's come with a LSD or just the 'winter package' ones? Is that a 3.15 diff? Vids!
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Old 10-11-2008, 05:47 AM
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Default Re: My HMT e30

Originally Posted by Kenny Rogers
True that... the rest of the car, however, may not hold up quite as well. Watchout for electrical gremlins and random suspension parts
i think your mistaking these for vw/audi
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Old 10-11-2008, 07:12 AM
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Default Re: My HMT e30

Originally Posted by WTF
i think your mistaking these for vw/audi

Unfortunately not, E30s are kind of known for electrical problems too. It's too bad, I still like them though. For about five years my parents both drove 325e's, and both of them always had some bullshit little problem. My Dad finally just sold his, at the time most of the gauges had stopped working due to a bad ground design, and shortly after the car was sold the crank angle sensor went out and left the new owner stranded. Can't recall the electrical problems my Mom's e30 had, but her's was an automatic and the transmission took a ---- at about 120k, and so it's sat for the last couple years.


Wouldn't mind a 325is turbo project someday, but it will probably never happen. Too many other project I'd like to do, too.
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Old 10-11-2008, 07:53 AM
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Default Re: My HMT e30

how hard was it to tune with ms?
also do you have to have a laptop? or could you just use a desktop in the garage and get a base line tune, drive it for a little bit at varing engine speeds,loads,and throttle positions and bring the car back plug it in and see what was going on during the drive and adjust a bit drive it again and keep doing that until you have it rite?

i know this is a stupid question as it would just make it a pain in the ***** i just don't want to spend $450-1200 on a laptop for my car i won't even buy one for myself because i have a desktop (yes i know if you use a laptop to tune a car it's not nessicarily just for tuning but if i did get a laptop for tuning i would just tune on it that way i don't get a viris or anything)
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Old 10-12-2008, 02:50 AM
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Default Re: My HMT e30

Yes all BMW's come with LSD rear ends. My car has a 2.93 ratio in it. My friend has a turbo 325is. I don't know what tranny and rear end he was using but it does nearly 115mph in third gear.

And like I said before I built my own MS harness it's super easy. If you can handle matching colors together than you can get the harness from diyautotune.com for like 70$.

As for the gauge cluster the only thing that still works is the fuel gauge since MS takes place of the Motronic. You can use the proto area on the MS board to drive gauges though.

My car uses the flywheel teeth for a tach signal so I had to get the variable reluctor wheel from a 325is as well as the sensor and fabricate my own bracket.

When doing that always fabricate it so the sensor is too close and shim it with washers..

As for the transmission, the manuals at least, are pretty much bullet proof. So far the only things I've seen break are the shift forks.

As for the laptop thing.. For a while I tuned with a desktop but I got sick of burning chips for my Honda.. Laptop is definitely the way to go. I got mine on sale for 350$ it was a 800$ laptop.

MS is pretty easy to tune. The way everyone goes about it though is ridiculous. They make it extra hard on themselves buy starting the map lean and using different enrichements to achive a drivable map. I just tune it like I tune Hondas. Set it up so the car gets its main fuel from the map and use enrichements to adjust certain points of the map like cold start, after start, acceleration, etc.
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Old 10-12-2008, 11:15 AM
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Default Re: My HMT e30

Originally Posted by omniscient
Yes all BMW's come with LSD rear ends. My car has a 2.93 ratio in it. My friend has a turbo 325is. I don't know what tranny and rear end he was using but it does nearly 115mph in third gear.

And like I said before I built my own MS harness it's super easy. If you can handle matching colors together than you can get the harness from diyautotune.com for like 70$.

As for the gauge cluster the only thing that still works is the fuel gauge since MS takes place of the Motronic. You can use the proto area on the MS board to drive gauges though.

My car uses the flywheel teeth for a tach signal so I had to get the variable reluctor wheel from a 325is as well as the sensor and fabricate my own bracket.

When doing that always fabricate it so the sensor is too close and shim it with washers..

As for the transmission, the manuals at least, are pretty much bullet proof. So far the only things I've seen break are the shift forks.

As for the laptop thing.. For a while I tuned with a desktop but I got sick of burning chips for my Honda.. Laptop is definitely the way to go. I got mine on sale for 350$ it was a 800$ laptop.

MS is pretty easy to tune. The way everyone goes about it though is ridiculous. They make it extra hard on themselves buy starting the map lean and using different enrichements to achive a drivable map. I just tune it like I tune Hondas. Set it up so the car gets its main fuel from the map and use enrichements to adjust certain points of the map like cold start, after start, acceleration, etc.
ok, thanks i think i might build a ms board myself then
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Old 10-12-2008, 11:27 AM
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Default Re: My HMT e30

Nice.
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Old 10-13-2008, 08:26 PM
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Default Re: My HMT e30

Very cool.

I have been wanting a RWD toy as of late. ----.

MS + Holset + RWD terror == something I want to do some day.


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Old 10-14-2008, 08:37 PM
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Default Re: My HMT e30

I'll have updates tomorrow since I'll be tuning the car completely. Along with more pics and some videos.

The only thing is the ------ thing smokes a bit. I'm not positive but I think it's oil..

I have a -4an line to the turbo with a set screw tapped into the the feed fitting, with a 1/16 hole in the set screw.

I have a -12an braided for a return line. I think the return sits half way under the oil level, but there's no positive pressure on the return side. And as long as the turbo sits above the oil sump it will return oil. It's if you have too much oil pressure going in, then it will start smoking..

It didn't smoke before the turbo set up though.

And at the same time it could be fuel, it only smokes above 3000rpm and I've only tested it idling..

I'm high as hell. I hope that made sense.
I
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Old 10-15-2008, 12:12 AM
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Default Re: My HMT e30

one of your earlier posts said valve seals, they leak oil when sitting and you notice smoke for the first few seconds of startup. then the oil is burnt off and no more smoke until you turn it off and let it sit for a while. if you have smoke that is constant, at a certian rpm and above, i would safely say you can rule out valve seals

vids are a must
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