is it faster to shift slower (~1 second to shift) vs. going right to the next gear in a split second? a friend of mine says that, he made a vid going up to 115 mph and shifts ridiculously slow... and i shift pretty damn quick (koalayummies can vouch ) anyway, i was wondering what's quickest and why?

here's the movie: (right click, save as)
http://www.we-todd-did-racing....DE%3D

 

generaly slow shifting will give you both higher trap speeds along with a higher time

and faster shifts will give you lower trap speeds (cuz the car didnt have enough time to accelerate to a higher speed) and a lower E.T

 

ok but exactly why is it quicker?

 

shifting slower gets you higher mph and ET

quick shifting gets u lower mph and lower ET cuz your shifting faster

basicly shifter slower gives u more time to get up to speeed but by doing that it takes time away from your ET

 

how does it get your trap speed higher? i just dont get it

 

why does it even matter?

moral of the story is dont sit there granny shifting , rip thru those gears!!!!!!

 

lol i like knowing WHY

 

The slower you shift the more time that zero power is going to the wheels...how could that be better in any circumstance?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suprdave &raquo;</TD></TR><TR><TD CLASS="quote">The slower you shift the more time that zero power is going to the wheels...how could that be better in any circumstance?</TD></TR></TABLE>

exactly what i was thinking, can someone tell me why zero power=higher trap, but lower ET?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lke2drvgsr &raquo;</TD></TR><TR><TD CLASS="quote">

exactly what i was thinking, can someone tell me why zero power=higher trap, but lower ET?</TD></TR></TABLE>

It doesn't...shifting slower does absolutely nothing for you...

 

suprdave, i think im ready to get that dyno done i know its been so long, i just have been really short on cash and couldnt afford the tuning and the ecu chip, but im finally scrounging enough money, and wondering when i can come in to get my car tuned? the problem is that on the compression test, my cylinders were all 170 psi with 10% leakdown... i SHOULD be up in the 240+ psi range on my setup, and i'm wondering if my numbers are off because of bad cam timing or something since the leakdown test shows minimal leakage.

 

The second bad habit some people have is shifting with excessive force. Too tight a grip, and slamming from one gear to another will actually slow your shifting down, and cause excessive mechanical wear. Proper shifting uses an open palm grip on the top of the shift ****, and a gentle but fast guide from one gear to another. We repeat---all shifting is properly done with the hand open and cupped over the top of the ****, not wrapped around it like a fighter plane control stick.

this is what he sent me explaining this topic, but it really doesn't say anything at all theres no reasons explaining anything other than how to hold a shiftknob

 

Shifting and working the clutch go hand in hand. So don't forget your footwork.

 

You do shift SLOWER for FASTER times... thats retarded.

If you shift TOO FAST, and then try shifting SLOWER, you should see better times.

The fastest "shifting" will always net you the quickest times, BUT <U>if when</U> you shift you re-engage the clutch either too fast or with too much throttle with not enough traction, you will start spinning the wheels again. Which obviously wont help when 1/10th of a second later you are flooring it.

 

thats werid how that works

 

try it at the track and see witch works better for you

 

wow that vid was just bad , he really shifts like that all the time?

 

heh apparently it was some other random video, that wasnt my friend, me and him had some miscommunication about it but ya, that's how he thinks shifting should be when racing....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lke2drvgsr &raquo;</TD></TR><TR><TD CLASS="quote">lol i like knowing WHY</TD></TR></TABLE>

when you shift really fast you will break loose.....if you take an extra .2 sec to shift you can release the clutch slower and you tires wont spin as much going through your gears

 

with good tires i don't break loose so is that the only reason?

 

if your tires dont break loose ever.....shift as fast as you can while keeping your revs up wehre they should be

in my small amount of exp in drag racing. if i shift as fast as i can, i break loose in 2nd so bad its actually funny.....i get better times if i let the clutch out a tad bit slower. but like you said, you dont break loose....so shift away