Hello all Si owners with hondata reflash and basic bolt ons,

I've been wondering if you guys are powershifting at 8k or 8.6k? I've talked to a couple of my Honda friends and they recommended me to power shift at 8k instead of 8.6k which is what I've been doing. Their reason is because they said although my car is able to redline at 8.6k its not making any power after 8k. I don't know if thats true but it sounds like it could be.

After watching those vids on youtube of our civic Si's with basic boltons and reflash running 13s..I've been going crazy about why my civic is only hitting 14.6s. My 60 foot is 2.3 sec and my trap is 97-98mph powershifting at 8k. I never tried at 8.6k because I love my car and don't want to push it too much...but those 13s are really making me wonder! The only thing I can think of that is slowing me down is because I don't have slicks, I have a four door, and possibly not powershifting at 8.6k?

Thanks in advance.

 

The problem with 1/4 mile times is the location

There are guys in NJ running 13's and ghetto tracks like island dragway & atco
VS a real track like Englishtown you'll run human times 14's and 15's

Elevation across the country & various other things play into the mix as well.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Type X &raquo;</TD></TR><TR><TD CLASS="quote">The problem with 1/4 mile times is the location

There are guys in NJ running 13's and ghetto tracks like island dragway & atco
VS a real track like Englishtown you'll run human times 14's and 15's

Elevation across the country & various other things play into the mix as well.</TD></TR></TABLE>
they re surfaced atco....nice as **** now.....and e-town is wayy more GHETTO than atco atco=redneck

 

As far as shifting goes, i dont think that extra 100rpm will matter much from the 8500 the car can already goto. I shift at 8300 myself, because from the time i get to 8300 and clutch, shift, clutch i will be to 84xx by the time i let the clutch back out. Seems to work well when im driving, havent been the the track again. I'm not good at launching :D

 

get the car on the dyno. look at the graph and see where power drops off and use that as a shift point.

and like stated above....location/elevation result in different times.

 

OP: You want to shift at an rpm where your landing point is right at peak tq.

 

Sounds like a plan...I'm up for a dyno next, next week and we'll see how that goes. Thanks for the inputs!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Demonis &raquo;</TD></TR><TR><TD CLASS="quote">As far as shifting goes, i dont think that extra 100rpm will matter much from the 8500 the car can already goto. I shift at 8300 myself, because from the time i get to 8300 and clutch, shift, clutch i will be to 84xx by the time i let the clutch back out. Seems to work well when im driving, havent been the the track again. I'm not good at launching :D</TD></TR></TABLE>

?? I'm confused, what do you mean by the extra 100 RPMs? The car limits at 8200 (stock), so wouldn't that be an extra 400 rpms? Where are you getting 8500 rpms from? Or am I reading what you said wrong?

 

whats power-shifting?? is it different from just shifting?? im confused.!.

 

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

?? I'm confused, what do you mean by the extra 100 RPMs? The car limits at 8200 (stock), so wouldn't that be an extra 400 rpms? Where are you getting 8500 rpms from? Or am I reading what you said wrong?</TD></TR></TABLE>

i was thinking the same thing but didn't comment on it. unless he has the reflash.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIVIC 3 &raquo;</TD></TR><TR><TD CLASS="quote">whats power-shifting?? is it different from just shifting?? im confused.!.</TD></TR></TABLE>

shifting while keeping the gas pedal to the floor. great if you can pull it off but it ***** up synchros really quick if you mis-shift often.

 

you have the mph for 13's... it's your '60 foot that is killing you. 2.3 is poop. Every tenth off the '60 is 2 to 3 tenths in the quarter, so your 14.6 w/2.3 is a 13.9 w/2.0.
practice different launching techniques.

As far as the power-shifting, I've never seen this having an advantage. Especially on an all-motor car. The cool thing (I like it) with these cars is the rev hang, which keeps rpm up while you shift, same concept as the power-shifting. Power-shifting does a number on the tranny and clutch.

To figure out your rpm shift point, do two back to back runs w/ launching the exact same each time. one run shift @ 8k, the second @8.6k. Which ever run has the higher mph, that's the rpm you need to shift at.

 

Sup wilham320,

My buddy with an 11 sec hatch said the same thing to me...Definitely need the slicks then. I had good traction but I guess I need the jump instead.

 

power shifting is not good for these trannies. power shifting is when u keep the gas to the floor, then shift... very quickly... from one gear to another while not ever letting the gas out. dont do it. maybe once in a while at teh track. these trannies/clutches are not made for too much more. so dont beat on it. trust ME

 

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

i was thinking the same thing but didn't comment on it. unless he has the reflash.</TD></TR></TABLE>

yes, he has the reflash. it says it in the title of the thread and in his post.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1staecksauce &raquo;</TD></TR><TR><TD CLASS="quote">

yes, he has the reflash. it says it in the title of the thread and in his post.</TD></TR></TABLE>

the guy we're talking about is not the OP.