you guys lost me

 

Ok, here's kinda what I'm talking about... You want the average of the rpms within your shifts be as high as possable. I don't know exactly where the shift points would be to maximize it, oh well.

[IMG]local://upfiles/5226/BA57FA228B4D4624820CCFB5FCB11AC4.jpg[/IMG]

But, I'm sure the difference between shifting at 6800 rpm and 7100 rpm would be like a thousandth of a second, or something negligable, over the quarter so I say, shift where you'd like... I think we can all agree that if you're in that general area it's prolly a good time to shift.

Edit: I do get what you're sayin forty, not trying to argue or anything. Another part of my thinking is you can accelerat faster in a lower gear so my thoughts are, the longer you stay in the lower gear, and still keep your average power up there, the better off you are.

 

hmmm...sounds good i guess,,,,

 

Right, i'm not trying to get in your face about it or anything, just tossing out my 2 cents... Anywho, my reasoning is that from 6800-7100, your power drops off significantly, so its pointless to use taht area of the powerband. And it does take a lil over a second to get from 6800-7100.

So, lets say it takes 1.5 seconds, utilizing 70hp to get from 6800-7100, and after the shift you end up back at, lets just say 4700rpms.

The alternative, is shifting at 6800, and landing on 4300 at the start of the next gear. @4300 you're probably using around 90 or so horsepower which will get you from 4300-4700 in under a second, making you a half second faster. Plus you're using a more useful portion of the powerband.


Like you said, the different is going to barely be noticable, so i suppose its really up to you as a driver. I would say you'd have to spend a lot of time on the dyno/track to find out EXACTLY what the differences are going to be, and which way is better.

 

i agree with both of you guys, your not using power if you shift to high and if you shift to low you drop on the power line....i understand what amg means because its most noticable when going up a hill or a on rap on a hill...(00 dx) if i shift at 3000 like i usually do and im going up a hit trying to gain speed it will drop low and it will take me a wile to get back up to 3000..so i bring it atleast up to 4000-4500 this way im still using power but not loosing power going up the hill...but just driving regular i shift at 3000, i have tried shifting at like 6 but as soon as i do i have to shift again

 

i have read something about this before. i will try and find it... im sure somebody has done a study on this.

 

well then isnt it lets say u rev at 7 rpm then when u shift u start lets sat a 4,800 rpm..but if u launch at 6,800 or less you'll end up in the 4,400 rpm range..but if u shift at 7 rpm you'll still be in the V-TEK range unlike shiftin at 6,800 when u have to work bac kup to the v-tek range...right?

 

vtec

 

holy thread from the dead batman!!! NGO IS HERE!!!!

you should expiriment with shifts to see where you drop down to vtec range.

vtec hits around 5.5k.

 

yea thats true...but i cant even hear my v-tec...and it saus v-tek on the engine...but i cant hear it...is it cause i need a new v-tec head or something?