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

lauj 03-24-2012 05:21 PM

Shifting 1st gear to 2nd at 7500rpm
 
Does anyone have a problem shifiting from 1st to 2nd at 7500rpm? To me, it seem like very hard to get to 2nd gear and hard to get it smooth. Am I doing something wrong? Any advices?

cheshirecat 03-24-2012 07:24 PM

The 350 and 370 transmissions have had problems when shifting @ very high rpm from 1st to 2nd. You wouldn't be the first person to bring it up.

I would suggest trying to move your shift closer to 7000 at the most.

lauj 03-25-2012 06:14 PM

i'll try that. thanks for the advice

gaveup 03-28-2012 10:22 AM

Only problem I've had shifting at 7500 from 1st to 2nd is my car gets sideways if I try to shift fast :)

Same for 8000rpm as well

andre12031948 03-28-2012 11:00 AM

Quote:

Originally Posted by lauj (Post 1618792)
Does anyone have a problem shifiting from 1st to 2nd at 7500rpm? To me, it seem like very hard to get to 2nd gear and hard to get it smooth. Am I doing something wrong? Any advices?

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:)

TerribleONE 03-28-2012 11:50 AM

[QUOTE=andre12031948;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:)[/QUOTE]

wow consider yourself very lucky for this!

andre12031948 03-28-2012 01:17 PM

[QUOTE=TerribleONE;1625687]
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:)[/QUOTE]

wow consider yourself very lucky for this!

Ye, that & I don't live in Cal. Seriously, not making fun but N.Y.S. still has some cool people & much more freedom left.

TerribleONE 03-28-2012 01:19 PM

no offense taken. The weather and awesome canyon roads make it worth it for me. I try not to think about all the negatives

andre12031948 03-28-2012 01:30 PM

Quote:

Originally Posted by TerribleONE (Post 1625939)
no offense taken. The weather and awesome canyon roads make it worth it for me. I try not to think about all the negatives

Yes, it's the most beautiful, diversified state in the country. A state where you can go skiing & getting a tan at the beach on the same day. If you could only.... nevermind :icon17:

fuct 03-28-2012 05:07 PM

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:)

soooo while racing you have tried to use two hands to get into 2nd at 7500 rpm????? :confused:

TerribleONE 03-28-2012 05:08 PM

Quote:

Originally Posted by fuct (Post 1626384)
soooo while racing you have tried to use two hands to get into 2nd at 7500 rpm????? :confused:

I read that and just prayed that it is not true... Ever heard the saying, "dont force it!"

corbin09 03-28-2012 05:15 PM

haha I know this may seem counter intuitive, but try slowing down your shift a little from 1-2. Shifting like Vin Diesel really wont help your times that much, it is a lot better for times and the car if you are smooth.

TerribleONE 03-28-2012 05:16 PM

granny shiftin, not double clutchin like you should

corbin09 03-28-2012 05:27 PM

Do our cars even make power after 7300ish RPM?

andre12031948 03-28-2012 06:59 PM

don't mean to sound like a d**k but I want to respond
 
Quote:

Originally Posted by corbin09 (Post 1626403)
haha I know this may seem counter intuitive, but try slowing down your shift a little from 1-2. Shifting like Vin Diesel really wont help your times that much, it is a lot better for times and the car if you are smooth.

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" :)

lauj 03-28-2012 08:42 PM

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

fuct 03-29-2012 10:57 AM

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

andre12031948 03-29-2012 02:04 PM

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:

Mai-z 03-29-2012 02:17 PM

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:

wilsonp 03-30-2012 06:12 PM

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.

corbin09 03-31-2012 09:47 AM

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.

roplusbee 03-31-2012 02:02 PM

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.

Dallaz 04-12-2012 04:49 PM

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.

chrischhorn 04-13-2012 12:13 AM

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.

ShinyBlueZ 04-13-2012 12:28 AM

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:

Davey 04-13-2012 07:02 AM

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

DavidZ370 05-13-2014 01:19 AM

Everytime i read your posts my IQ drops to unhealthy levels


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