Nissan 370Z Forum - Shifting 1st gear to 2nd at 7500rpm

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- - Shifting 1st gear to 2nd at 7500rpm (http://www.the370z.com/engine-drivetrain/51943-shifting-1st-gear-2nd-7500rpm.html)

Quote:

Originally Posted by andre12031948 (Post 1625544)

For a long time I had the same problem while drag racing. Sometimes it was fine, other times even using BOTH hands would not get it into 2nd. gear. Lost a few trophies because of it:( One dealer said no problem found. After a long & frustrating time I found a dealer that let me power shift, saw the problem & got me a brand NEW (under warrenty)trans. Find a performance friendly dealership:)

I wish I had a dealership like that

Quote:

Originally Posted by andre12031948 (Post 1626649)

I have an 08 350z with STOCK intake & STOCK exhaust with test pipes. My car has only 280's H.P. yet I hold the 07/08 HR 350z 1/4 mile record at 12.504@110mph. I've done many 12.5's/12.6's at Atco & Raceway Park N.J. I do use slicks, but have done many 12.7's/12.8's without them in summer weather. I also hold the 60' record at 1.69. The main reason for my times has to be my driving. I am bragging BUT there is no other way to say it. I don't shift hard but I can shift faster than you can blink your eyes. There is an older vidoe of me driving with a camera on my helmet, and the other of my tach & shifting. It was not of my fast times but it's worth seeing. Just search andre12031948 & you can check them out.

NO LONGER ON JUST SEARCH - It is however on you tube search - "shifting like Vin Diesel" :)

sorry I didnt know i was talking to a record holder, my bad :P

Quote:

Originally Posted by fuct (Post 1627711)

sorry I didnt know i was talking to a record holder, my bad :P

Well ok, just don't make it a habit:icon17: Long ago when I was young, I had sex 6 times in one night. Could that also be a record? Please don't ask if I was QUICK then too. :icon17:

Quote:

Originally Posted by andre12031948 (Post 1626649)

I have an 08 350z with STOCK intake & STOCK exhaust with test pipes. My car has only 280's H.P. yet I hold the 07/08 HR 350z 1/4 mile record at 12.504@110mph. I've done many 12.5's/12.6's at Atco & Raceway Park N.J. I do use slicks, but have done many 12.7's/12.8's without them in summer weather. I also hold the 60' record at 1.69. The main reason for my times has to be my driving. I am bragging BUT there is no other way to say it. I don't shift hard but I can shift faster than you can blink your eyes. There is an older vidoe of me driving with a camera on my helmet, and the other of my tach & shifting. It was not of my fast times but it's worth seeing. Just search andre12031948 & you can check them out.

NO LONGER ON JUST SEARCH - It is however on you tube search - "shifting like Vin Diesel" :)

I'll be the judge of that. I happen to have a few records for the fastest blinking eyes.:icon14: Come at me!

Quote:

Originally Posted by andre12031948 (Post 1625544)

For a long time I had the same problem while drag racing. Sometimes it was fine, other times even using BOTH hands would not get it into 2nd. gear. Lost a few trophies because of it:( One dealer said no problem found. After a long & frustrating time I found a dealer that let me power shift, saw the problem & got me a brand NEW (under warrenty)trans. Find a performance friendly dealership:)

dayum boy!:tiphat:

Quote:

Originally Posted by corbin09 (Post 1626420)

Do our cars even make power after 7300ish RPM?

The torque curve is so close to flat that being in the lower gear as long as possible is always best.

For the 7AT, at 125MPH in 4th at 7500 you drop to 5307 in 5th but your transmission torque drops from 863 to 705 even though you are at near peak torque in 5th.

Lower gearing always wins unless your torque curve has a large small peak. It's why the NSX is very quick even though it doesn't feel like it.

That makes sense... I just feel like when I hit around 7.5-7.8k rpm the car really doesnt have that much left in it.. maybe it is just how my car is tuned.

I have only redlined a few times. The butt dyno reported that it was pulling all the way to the top. I bounced off the rev limiter trying to get out of a group on 190 near Fort Hood. For some reason people like to ride in packs...............I didn't have any trouble shifting from 1-2 when @ about 7-8k.

I also had trouble shifting to 2nd quickly at 6.5-7.5k RPM when at the 1/4 mile. Every other gear it goes smooth as butter and allows shifts much faster. I've driven plenty of high performance cars to know that this is unusal.

I thought i was one of the few with this issue.....but sometimes mine will drop in like butter and other times it wont drop or it will grind when it drops. I was thinkin of having the dealership rebleed the clutch or something....Even at times goin into others gears just doesnt feel as smooth but then it feels smooth as can be at others......But if i double pump the clutch, makes for a smooth shift every time.

Quote:

Originally Posted by andre12031948 (Post 1626649)

NO LONGER ON JUST SEARCH - It is however on you tube search - "shifting like Vin Diesel" :)

Lies. I actually went on YouTube and searched for it and I ended up watching "Get Abs Like Vin Diesel." I'm starting the program tomorrow. :werd:

I don't have any problem shifting at redline from 1st to 2nd at all. However I don't powershift or aggressively slam the car into gear because that's just abusive, no transmission in a production car is made to take that kind of abuse.

Well, not since the old Muncie 4-speeds, anyway. :D

Everytime i read your posts my IQ drops to unhealthy levels