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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 02-11-2012, 10:26 PM   #341
Andy2108
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Originally Posted by steven747 View Post
i have a 3.46 diff and its perfect if anything a tad too high with 1st being so short but i do like shifting a lot. unfortunately 85% of my driving is highway so i burn some oil but I'm happy.
I'm running 4:10's with 285/30/19 tires (big tires).

Shush your whining
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Old 02-11-2012, 10:28 PM   #342
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Quote:
Originally Posted by Andy2108 View Post
I'm running 4:10's with 285/30/19 tires (big tires).

Shush your whining
M3 is different.
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Old 02-11-2012, 10:43 PM   #343
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M3 is different.
Not really. Transmission ratios are only like 2% different.
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Old 02-11-2012, 10:47 PM   #344
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Not really. Transmission ratios are only like 2% different.
Talking about big tires.
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Old 02-12-2012, 04:34 PM   #345
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no

that stupid input shaft swap is spooking me
and stopping me from doing it

i want to kinda free ball it and mark the nut and notch the input flange on the iff on where to retighten it to

either that or ill have to pay someone to do it and im a diyer
i dont want to pay for it

i also dont have $$$ to toss around buy a diff here a diff there and such


The input shaft isn't hard to replace as long as you have an impact gun. I was kinda lucky to have one of the techs at work show me how it's done in person.



Quote:
Originally Posted by steven747 View Post
i have a 3.46 diff and its perfect if anything a tad too high with 1st being so short but i do like shifting a lot. unfortunately 85% of my driving is highway so i burn some oil but I'm happy.
Nice. If you do more highway driving then a 3.46 is a better option.

Quote:
Originally Posted by Andy2108 View Post
I'm running 4:10's with 285/30/19 tires (big tires).

Shush your whining
That must be fun!]
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Old 02-12-2012, 06:47 PM   #346
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i know its not hard to replace its just the bearing torque and stuff that worries me
i have a mass of air tools to use of my own
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Old 02-12-2012, 07:25 PM   #347
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i know its not hard to replace its just the bearing torque and stuff that worries me
i have a mass of air tools to use of my own
Take something sharp and make a mark on the shaft and then on the nut () Obviously this is your reference point. Take the nut off, swap the input shaft and tighten the nut back on. It may take a couple tries to line them up, but you'll eventually get it.
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Old 02-12-2012, 07:49 PM   #348
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thats most likely the way i would end up doing it
but while im in there i figured id do bushings(ive had solid aluminum sitting for a year or so) and adjustable camber arms
and bang it all out at one time
renting tools and such since i dont have access to them anymore
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Old 02-19-2012, 01:33 AM   #349
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Bought a Setrab/VPD Oil Cooler Kit.

I'll post up pics when it arrives! I cant wait.

Also sold my Apex's to get a new set, but this time 9.5" all around instead of 9". Hmm maybe 265's square??
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Old 02-19-2012, 06:21 PM   #350
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Originally Posted by secono330ci View Post
Bought a Setrab/VPD Oil Cooler Kit.

I'll post up pics when it arrives! I cant wait.

Also sold my Apex's to get a new set, but this time 9.5" all around instead of 9". Hmm maybe 265's square??
nice got my satin black 9.5 squared arc8's in my room ready to get put on .. I'm thinking 235 square
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Old 02-19-2012, 06:22 PM   #351
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Nice! But why only 235's... Go wider
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Old 02-19-2012, 07:41 PM   #352
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Nice! But why only 235's... Go wider
+1, 255's would fit nicely
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Old 02-19-2012, 09:06 PM   #353
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Nice! But why only 235's... Go wider
can't roll or pull because of body work and i don't want to rub. I've heard a guy with the exact setup with 255's squared and major work was required
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Old 02-19-2012, 09:13 PM   #354
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^ill let you know within a week if major work is needed
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Old 02-19-2012, 09:25 PM   #355
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255 square on the streets? Post videos of the getaway videos. Or information supporting the need of tire at current power level. Even on the track, these cars are hitting the same/better times with less tire? I'm confused.
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Old 02-19-2012, 09:28 PM   #356
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i did it for grip and not power
i did it because i can

sorry secono330ci for the mini jack
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Old 02-19-2012, 09:32 PM   #357
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Wow, 255 is easy... 265 is a minor challenge, but not a big deal, just need a fender roll in the rear. Getting the right offset wheels is the key. We use 9" wheels, but I'd think 9.5" would not be that dramatically worse if you stick to 255s. But then, I'm running 2.5* of camber rear and 2* camber for street driving up front.
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Old 02-19-2012, 09:41 PM   #358
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power level unknown yet will know in 2-3 weeks time
i did it for grip and not power. Find the proper tire for the power you don't know you have.
i did it because I have no idea wtf I'm doing.

sorry secono330ci for the mini jack
fixed
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Old 02-19-2012, 10:21 PM   #359
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can't roll or pull because of body work and i don't want to rub. I've heard a guy with the exact setup with 255's squared and major work was required
Let me ask you this first...what suspension are you running?


Quote:
Originally Posted by xixixi View Post
255 square on the streets? Post videos of the getaway videos. Or information supporting the need of tire at current power level. Even on the track, these cars are hitting the same/better times with less tire? I'm confused.
I'm running that on my summer set up. It's great. I'm sure even 245's would be sufficient, but at that point if you can fit 255's why not. It handles like it's on rails. The stock zhp has 255's in the rear, so you're really only helping the front by reducing understeer.

Quote:
Originally Posted by DarkJoker View Post
power level unknown yet will know in 2-3 weeks time
i did it for grip and not power
i did it because i can

sorry secono330ci for the mini jack
I dont care, the more discussion the better.
I did it for the same reason originally. Now that my car is a lot lighter and a bit more powerful, I actually need this set up. Since it's winter now, I'm running 225 square dunlop winter sports (winter tires are very grippy) and it's NOTHING like my summer set up...and my Nitto Invos are SHOT.

Quote:
Originally Posted by murph1379 View Post
Wow, 255 is easy... 265 is a minor challenge, but not a big deal, just need a fender roll in the rear. Getting the right offset wheels is the key. We use 9" wheels, but I'd think 9.5" would not be that dramatically worse if you stick to 255s. But then, I'm running 2.5* of camber rear and 2* camber for street driving up front.
That's about the same camber I'm running as well, good point. I dont know how easy 265's will be tho. The problem isn't the rear tire clearance, but the front. It needs to clear the strut, but at the same time have enough room to turn and not rip the fender out. It really is a game of trial and error.

This calculator helps a lot
http://www.1010tires.com/wheeloffsetcalculator.asp
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Old 02-19-2012, 11:20 PM   #360
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Here are a few videos of the car.

Turned dsc off completely. It likes to chirp 3rd a lot when its on This is also on a stock clutch with 110k miles, so it slips when I shift fast. Cant wait to get a new one. My best friend's cousin has a hook up with clutchmasters and I'll be getting a nice discount on that (stage 1) and the JB Flywheel

http://www.flickr.com/photos/50810309@N02/6906162013/

http://www.flickr.com/photos/50810309@N02/6906300247/

http://www.flickr.com/photos/50810309@N02/6907696773/

***Does anyone know how to embed these vids on here? I hate using links...
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