BMWidmer

I was referring to Psyber that he didn't have his coffee yet but i guess that fit the bill for you also!

psyber_0ptix

iTrader: (4)

I don't know. It seemed to make sense for me. I'm asking if anyone wanted to trade an OSGiken 3.63 for my OSGiken 3.9. Maybe just semantics but I'll clarify.

Restated:
I have an OSGiken differential built with a 3.9 final drive when I was lead to believe I was being sold a 3.63. I made a mistake and didn't confirm before hand because the part was brand new and special ordered. Alas, after install, my speed and RPM did not match up and all calculations point to this being a 3.9 ring and pinion.

My proposition is such that, if anyone wanted to trade their 3.63 equipped OSGiken for my 3.9, I'd facilitate the trade plus shipping.



Though, as niche as the 3.63 gears are, I'm basically pissing in the wind since I doubt anyone will want to give theirs up as it was selected with purpose. I honestly didn't think this thread would derail over such a silly chime.

OP, I've daily driven my car that is equipped with a pleb non-MSM 6 speed and haven't had issues. That being said, having run a 4.1 and now a 3.9, the mechanical advantage to the wheel is higher meaning I'm not loading the gears as much with any reactionary force offered by traction with the ground as would be the case if using a longer final drive (3.63).

lsc224

iTrader: (13)

Yes, stock shifter sucks. I have the MR shifter. Shifts a lot better, occasionally I'll find the wrong gear too. Yes definitely PRACTICE!

pdexta

iTrader: (17)

I've run 4.10's and a 6 speed for a while and I liked it in a n/a car. Even with a modest FI setup I think it'd be fun as long as you don't mind rowing through gears.

psyber_0ptix

iTrader: (4)

1-3 is squirrely easing onto the throttle with a 4.1. It was interesting to feel the torsen have a bias to one side when both wheels are slipping.

Der_Idiot

iTrader: (2)

Aidan: At 340hp w/ 3.9 and 6spd here, it's not too bad to street but I really want to switch to 3.6 down the line as there's a lot more shifting than I'd like. Glad I have a bumped redline as AutoX would be a challenge with the gear spacing ATM.

aidandj

iTrader: (5)

You have way more power than I was running. 3.9 + 6 speed is great at 200hp. I could pull out of certain corners faster than @turbofan, and i was only running ~160hp on the track. (he was ~230hp with 6spd+3.6)

I'm interested to see how it feels with more power.

I think i would probably go getrag before i dropped $$ on a 3.6 gearset.

turbofan

iTrader: (1)

Truth, and it pissed me off lol. We swapped cars later in the day and it totally explained why he was on my bumper out of several corners. Tiny turbo and slightly shorter gearing meant he was in the meat of the powerband while my car was still waking up.

That was so, so much fun.

codrus

6-speed (out of an MSM) + 3.636 here. It's great, I love it. As I've said in several other threads on this topic, 1-5 are spaced just like the 5-speed + 4.3 that came with the car except it'll hold more power and there's an extra 6th gear up top.

6-speed + 3.9 sucked. It was annoying on the street and really really annoying at autox. I only had that combo in the car for about a month, so I never went to the track like that. That was at 270 rwhp, it'd be even worse at the 340 the car has now.

--Ian

codrus

argh, duplicate post.

aarongdl

So everyone that runs a 6spd have held a little over 300?

Do you guys do anything to make sure it'll hold the power or just put them in and hope for the best?

And is there any difference between a non MSM 6sp and MSM 6spd?

psyber_0ptix

iTrader: (4)

If 30-50hp is a little over....

Kids these days.

You strike me as someone who like to worry about things. You seem to worry when you don't have anything yet to worry about for someone who in another thread said you'd be happy with a little over 200whp. You just might crave anxiety.

Supposedly the MSM trans is stronger because of some process, shot peening of gears or whatever. You make sure it holds by being mindful and respectful of the power; also it usually it boils down to using one of three clutches which you can use the search function to find. If you need to google mechanical empathy, then reconsider your trans option. It's the cheapest and most direct way to hold a reasonable amount of torque. If you're really worried about it, then develop a trans solution for the rest of us who, aside from a select few, haven't had extreme issues with the 6 speed other than bitching about the shifter feel.

For your power goal, "do it once and do it right" will definitely fall into the realm of a 6 speed. But if you want to add complication, we'll be here to watch.

aarongdl

Whose bitching about the shifter feel?

I'm only asking questions to keep the conversation going and to get your opinions/advice rather than reading a thread from 2011 and going based off that info. My bad for staying up to date?

I guess the right terminology wasn't a "little" over 300, but you know what I meant.

aidandj

iTrader: (5)

You aren't going to make a little over 300 on an mkturbo setup though....

psyber_0ptix

iTrader: (4)

Read build threads. See what others have done and why, understand and draw conclusions of your own.

psyber_0ptix

iTrader: (4)

Do you even read your own threads?


I've also switched to a MiataRoadster shifter. Stop worrying about things, read your ****, and what discussion does there need to be?

aidandj

iTrader: (5)

I just changed out the bushing for the Miata Roadster Delrin bushing. Was a lot cheaper made a big difference