Shifting a FI Car

phunk · 05-14-2013, 02:01 PM

EDIT: nevermind, rereading your last post it sounds like you just said exactly what i just said.

I agree, its about the actual RPM that you begin the shift, and how quickly you are expecting the synchronization to occur. The gas peddle position is mostly irrelevant once the clutch has been disengaged. I shift at 7500 with my setup, as I expect most people here will be. I did not do it long on the stock type clutch configuration, so maybe I should stress a little more that all my experience has been with lightweight racing clutches and perhaps with a stock style clutch, others may not see the same endurance in their trans.

Sh0velMan · 05-14-2013, 02:33 PM

Quote:

Originally Posted by phunk

EDIT: nevermind, rereading your last post it sounds like you just said exactly what i just said.

I agree, its about the actual RPM that you begin the shift, and how quickly you are expecting the synchronization to occur. The gas peddle position is mostly irrelevant once the clutch has been disengaged. I shift at 7500 with my setup, as I expect most people here will be. I did not do it long on the stock type clutch configuration, so maybe I should stress a little more that all my experience has been with lightweight racing clutches and perhaps with a stock style clutch, others may not see the same endurance in their trans.

Yes, we're vehemently agreeing with one another.

The fact you've got low-mass components make a huge difference. Less mass to slow down to synchronize the input and output shafts. If folks all go to lightweight twin disk setups, they'll prolong the life of their transmissions, even if they never power shift. (Within certain limits, the harshness of take-up in a true racing clutch can be hell on various bearings and whatnot if not driven with care)

Mr.Squeeze · 09-09-2013, 01:34 PM

Quote:

Originally Posted by phunk

EDIT: nevermind, rereading your last post it sounds like you just said exactly what i just said.

I agree, its about the actual RPM that you begin the shift, and how quickly you are expecting the synchronization to occur. The gas peddle position is mostly irrelevant once the clutch has been disengaged. I shift at 7500 with my setup, as I expect most people here will be. I did not do it long on the stock type clutch configuration, so maybe I should stress a little more that all my experience has been with lightweight racing clutches and perhaps with a stock style clutch, others may not see the same endurance in their trans.

Well my transmission didn't like the power shifting with the OS Giken Triple Disc I blew it up this past weekend shifting at 7800 RPM .

phunk · 09-09-2013, 02:01 PM

Quote:

Originally Posted by Mr.Squeeze

Well my transmission didn't like the power shifting with the OS Giken Triple Disc I blew it up this past weekend shifting at 7800 RPM .

3rd gear? if so, thats totally normal for your HP level with this trans

Mr.Squeeze · 09-09-2013, 02:18 PM

Quote:

Originally Posted by phunk

3rd gear? if so, thats totally normal for your HP level with this trans

I wish it was a gear lol I blew the Shaft inside the transmission. I tried calling you to tell you about it.

phunk · 09-09-2013, 02:24 PM

Quote:

Originally Posted by Mr.Squeeze

I wish it was a gear lol I blew the Shaft inside the transmission. I tried calling you to tell you about it.

i saw that NJ call... I will call you back in a little while... I have been wasting too much time on the internet today and now I have only 2 hours left to pack up todays orders!

Mr.Squeeze · 09-09-2013, 02:29 PM

Quote:

Originally Posted by phunk

i saw that NJ call... I will call you back in a little while... I have been wasting too much time on the internet today and now I have only 2 hours left to pack up todays orders!

No problem and yeah the New Jersey Number is me.

05-14-2013, 02:01 PM	#1 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974725	EDIT: nevermind, rereading your last post it sounds like you just said exactly what i just said. I agree, its about the actual RPM that you begin the shift, and how quickly you are expecting the synchronization to occur. The gas peddle position is mostly irrelevant once the clutch has been disengaged. I shift at 7500 with my setup, as I expect most people here will be. I did not do it long on the stock type clutch configuration, so maybe I should stress a little more that all my experience has been with lightweight racing clutches and perhaps with a stock style clutch, others may not see the same endurance in their trans. Mr.Squeeze, Sh0velMan and Mitco39 like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph Last edited by phunk; 05-14-2013 at 02:06 PM.

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