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      10-16-2018, 07:17 PM   #199
spxxx
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Originally Posted by NinjaDog View Post
Any particular reason you would go for clutch type over helical? How do you find the diff ratio?

Also Bimarcos look really good for the money

Thanks for the reply!
I'm using the stock ratio since the N54 has plenty of low end torque and getting out of slower corners in 3rd isn't usually an issue and actually reduces wheel spin which is nice on corner exit.

A clutch type diff would be awesome but I try to keep costs down as much as possible and the $750 price of the Mfactory diff during their GB was too good to pass up.

If I go clutch type I'll likely go with a full M3 rear-end and go OEM E92 LSD which would allow me to run normal offset wheels too. Not trying to spend $3-4k on a diffsonline LSD as great as that would be.
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      01-29-2019, 06:26 PM   #200
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spxxx how are you liking the 510's after spending more time with them? How are the 400/750 rates on the street?

They are at the top of my list for dual-duty with more focus on street. Any feedback would be helpful.
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      01-29-2019, 06:28 PM   #201
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spxxx how are you liking the 510's after spending more time with them? How are the 400/750 rates on the street?

They are at the top of my list for dual-duty with more focus on street. Any feedback would be helpful.
They're great, I don't drive it on the street too much anymore but it's totally bearable. I'm going to bump up to 500/800 soon, hope I don't see too much increase in understeer with the stiffer springs up front.
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      01-30-2019, 05:00 PM   #202
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They're great, I don't drive it on the street too much anymore but it's totally bearable. I'm going to bump up to 500/800 soon, hope I don't see too much increase in understeer with the stiffer springs up front.
Good to hear, thanks! I'll prob try 6k/12k because I'm 70% street focused, but it's great to hear actual feedback on our platform. Cheers.
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      01-31-2019, 06:42 PM   #203
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They're great, I don't drive it on the street too much anymore but it's totally bearable. I'm going to bump up to 500/800 soon, hope I don't see too much increase in understeer with the stiffer springs up front.
We have 600/800 in my wife's 135i, and it pushes like a motherfucker. -3.5*/-2.2* camber, stock sway bars. This was sort of done purposely as it is a hillclimb/TT car, and her going backwards into trees isn't something I really want to happen, but I autocrossed it and it was total shit. 500/800 would probably be pretty good on track. I think I may bump her front rate down a bit and go with a little more rear bar.

I will be running the 510s this year on my E36, really looking forward to trying them out. Have heard good things.
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      02-18-2019, 05:00 AM   #204
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Originally Posted by Mark Aubele View Post
We have 600/800 in my wife's 135i, and it pushes like a motherfucker. -3.5*/-2.2* camber, stock sway bars. This was sort of done purposely as it is a hillclimb/TT car, and her going backwards into trees isn't something I really want to happen, but I autocrossed it and it was total shit. 500/800 would probably be pretty good on track. I think I may bump her front rate down a bit and go with a little more rear bar.

I will be running the 510s this year on my E36, really looking forward to trying them out. Have heard good things.
Did you lower the car much or much the same with the 600/800?
spxxx You got 500/800 in yet? OEM M LSD is bad btw, always spins inside wheel before actually locking like a true clutch type.
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      02-19-2019, 06:33 PM   #205
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Did you lower the car much or much the same with the 600/800?
spxxx You got 500/800 in yet? OEM M LSD is bad btw, always spins inside wheel before actually locking like a true clutch type.
Car has an MFactory helical diff. No real issues with inside wheelspin unless a tire is off the ground from what I have felt, wife doesn't have any issues anyway (it's her hillclimb/time trial car).

Car is lowered but not excessively. Bought it modified so not sure on stock height, best guess is 1.5" lower than stock.

Haven't changed springs yet, solidly into winter here and it doesn't get driven in salt (although I did take it out Sunday and destroy about 2k of tire life in 20 miles .
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      02-19-2019, 06:35 PM   #206
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Quote:
Originally Posted by gmx View Post
Did you lower the car much or much the same with the 600/800?
spxxx You got 500/800 in yet? OEM M LSD is bad btw, always spins inside wheel before actually locking like a true clutch type.
Car has an MFactory helical diff. No real issues with inside wheelspin unless a tire is off the ground from what I have felt, wife doesn't have any issues anyway (it's her hillclimb/time trial car).

Car is lowered but not excessively. Bought it modified so not sure on stock height, best guess is 1.5" lower than stock.

Haven't changed springs yet, solidly into winter here and it doesn't get driven in salt (although I did take it out Sunday and destroy about 2k of tire life in 20 miles .
I also have the Helical Mfactory LSD, Its survived 2yrs+ of track day abuse and I really like it. Locks up better than the E92/E82 1M/M3 diff of the same generation IMO
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      04-22-2019, 10:29 PM   #207
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By chance are you using linear throttle mapping with xhp? I am exploring a 335i 6AT dual duty build but read LT mapping on xhp is not suggested as tcu control works on pedal input (and assumes stock throttle).

Any ill effects if you are? Stock throttle mapping is undrivable for me on track
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      04-25-2019, 10:58 AM   #208
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Are you planning on running any NASA events in the near future? Been looking forward to seeing you out at Sonoma since seeing the car on track last season but, haven't crossed paths yet.
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      04-25-2019, 12:48 PM   #209
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Are you planning on running any NASA events in the near future? Been looking forward to seeing you out at Sonoma since seeing the car on track last season but, haven't crossed paths yet.
I would also be in to see a 1er on track giving it the beans. I just moved up to silicon valley so exploring the area a bit.
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      05-06-2019, 02:11 PM   #210
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Are you planning on running any NASA events in the near future? Been looking forward to seeing you out at Sonoma since seeing the car on track last season but, haven't crossed paths yet.
I hope to. I've been traveling a lot more for work and had some family stuff come up so I've missed a ton of track days unfortunately. Haven't been to a track in 4+ months.

Def hope to meet up soon, what's the next NASA NorCal event?
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      05-06-2019, 02:14 PM   #211
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Quote:
Originally Posted by Mr. Pharaoh View Post
Are you planning on running any NASA events in the near future? Been looking forward to seeing you out at Sonoma since seeing the car on track last season but, haven't crossed paths yet.
I would also be in to see a 1er on track giving it the beans. I just moved up to silicon valley so exploring the area a bit.
Nice, where at?

My track car has been sitting in my garage collecting dust, so sad. Might start daily driving it and decide if I want to dual duty it (and sell the daily) or keep it track only.

I have another 08 135i that I'm driving now daily, picked it up super cheap and figured it was easier than getting the track car smogged and registered for 2019.

Would love a real racecar, been looking at spec46 once the budget/work schedule allows it.
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      05-06-2019, 02:31 PM   #212
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Nice, where at?

My track car has been sitting in my garage collecting dust, so sad. Might start daily driving it and decide if I want to dual duty it (and sell the daily) or keep it track only.

I have another 08 135i that I'm driving now daily, picked it up super cheap and figured it was easier than getting the track car smogged and registered for 2019.

Would love a real racecar, been looking at spec46 once the budget/work schedule allows it.
I'm down in Santa Clara now, been exploring mostly the area down here From San Jose down and over to Santa Cruz, etc.
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      05-06-2019, 02:36 PM   #213
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Quote:
Originally Posted by spxxx View Post
Nice, where at?

My track car has been sitting in my garage collecting dust, so sad. Might start daily driving it and decide if I want to dual duty it (and sell the daily) or keep it track only.

I have another 08 135i that I'm driving now daily, picked it up super cheap and figured it was easier than getting the track car smogged and registered for 2019.

Would love a real racecar, been looking at spec46 once the budget/work schedule allows it.
I'm down in Santa Clara now, been exploring mostly the area down here From San Jose down and over to Santa Cruz, etc.
Nice, I live in Willow Glen but work in Santa Cruz (if I'm not working from home because people can't figure out how to drive on hwy17)
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      05-06-2019, 03:51 PM   #214
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Originally Posted by spxxx View Post
They're great, I don't drive it on the street too much anymore but it's totally bearable. I'm going to bump up to 500/800 soon, hope I don't see too much increase in understeer with the stiffer springs up front.
I will be curious to hear your input - my car is hugely better with the 500/700 setup I have than the 400/700 I ran last year. It is much more transitionally responsive for autocross and both my codriver and I find the car remains balanced nicely with a little less oversteer but virtually no understeer. It is worth noting that I run a little rake - I find a lot of people in these cars either by design or accident end up with no or negative rake and that causes a lot of understeer.

-Mark
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      05-08-2019, 10:38 AM   #215
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Nice, I live in Willow Glen but work in Santa Cruz (if I'm not working from home because people can't figure out how to drive on hwy17)
Ohh sweet. Yeah I'm looking to maybe buy a house in that area between San Jose and Santa Cruz, scenic location, housing market hasn't gotten too crazy and still decently close to most of Silicon Valley. Still have yet to find the best roads in the area though. Someone suggested Highway 9, that was nice, also drove around some of the Uvas lakes here south of San Jose. Have yet to find anything that compares to my beloved mountain roads in Malibu or the Ojai area.
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      05-08-2019, 03:05 PM   #216
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I hope to. I've been traveling a lot more for work and had some family stuff come up so I've missed a ton of track days unfortunately. Haven't been to a track in 4+ months.

Def hope to meet up soon, what's the next NASA NorCal event?
Sonoma. Next weekend May 18 and 19.
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