See Are X

Im just wondering how many people have to go into 5th gear in the 1/4 mile? With what transmission? How much whp? and times?

Reason I ask, is I ran 12.9@111mph topping out at the end of 4th on street tires(boosted b16 w/ ITR tranny). If I were to run slicks, this would give me a better ET, but does that necessarily mean I will have to go into 5th? I hate goin into 5th, sometimes it feels like its gonna go into 3rd.

093turbo16

iTrader: (2)

I had to go into 5th with a LS tranny on small 20 inch slicks. No fun at all, so I just coasted across the line.

But on my race car, I am at 8500 or so GSR tranny with 24.5" slicks at ~127-128 mph.

If you got the right tire combo, a larger size it would help you out a little bit.

BlueSi2k

hmm i trapped 118 and stayed in 4th with a b16/si tranny but i think i was revving to 8500 or so. This was also on 205/50/15 azenis. What are you revving to? si and itr have pretty much the same gear ratios right?

edit: to answer your question, the slicks aren't gonna make you go into 5th just because youll have a better et. They'll actually help you out assuming they're taller than your tires now.

GetawayInMoscow

lots of times MPH goes down with your ET.

99B16Si

its a pain in the *** but in my old setup i had to go into 5th for quite a while on 15" street tires and b16 tranny. trapped at 128mph

HamiltonRex

i still had room in 4th with ls trans, 22' slicks only trapping 112mph.

sc4dr

You should be good with 24.5"+ slicks, or 225/235/15 dr's. If you go to 5th you might as well pack it up and go home.

THEDirtyDseriesWOOT

just run a d-series with a y7 tranny 135+ in 4th gear woo hoo just kidding i had that trans it succkks

blackeg

larger tires will give you more mph in each gear. if you are right on the border of 4th and 5th, then get some slighly bigger tires and that will keep you in 4th.

SovXietday

Rev higher, taller tires, or put in a longer final drive/4th gear.

93supercoupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote">Rev higher, taller tires, or put in a longer final drive/4th gear.</TD></TR></TABLE>

this is it right here.

thread/

Garage 808 Hatch

yep. 4th gear B16 tranny, 25" slicks ~9000rpm, 137.6mph

tires are the way to change you gearing for cheap

BlueSi2k

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sc4dr &raquo;</TD></TR><TR><TD CLASS="quote">225/235/15 dr's</TD></TR></TABLE>

thats a pretty big sidewall

sc4dr

haha you're not kidding I meant 225/50/15 or 235/50/15

turbotime

whats so bad about 5th? i know its high load and a usually not-completely-tuned portion of the map; but with a wideband and egt id think you could keep an eye on things...

Ive been in 5th a few times at high speed WOT and the engine was just fine just kept an eye on egts

blackeg

id imagine its just having to shift again, especially if you are doing it crossing through the traps it will perhaps take some mph and et(?) off

DA is best

iTrader: (1)

what about an LS motor with a b16 trans shifting at 6500

anybody know what gear i will be in?

Garage 808 Hatch

what hp? tires etc. you cant throw out a generalized question like that

shant

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DA is best &raquo;</TD></TR><TR><TD CLASS="quote">what about an LS motor with a b16 trans shifting at 6500

anybody know what gear i will be in?</TD></TR></TABLE>

top of 5th should be about 120mph.

KeyserSoze

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DA is best &raquo;</TD></TR><TR><TD CLASS="quote">what about an LS motor with a b16 trans shifting at 6500

anybody know what gear i will be in?</TD></TR></TABLE>

Yea, way to vague, you have to ask the question like this.....

I'm a complete noob when it comes to 1320's, what et and/or mph could I expect when tracking a 325whp gsr engine reving 8500-9000 with gsr tranny, on 215/60/14 bfg dr's, nuespeed race springs, koni yellows (at stiffest setting) in a full int ej1 chassis? This is all of course assuming that I am not a completely retarded driver......only partially retarded (and I am talking about me so don't get feelings).

rudebwoy

iTrader: (1)

I go into 5th, inches before I cross the finish line,
ls/vtec 23 psi 9100rpm b16 transmission street tires 12.17 in the 1/4 on a concrete track here.


Modified by rudebwoy at 9:06 PM 2/19/2007

0morgan@synapse motorsport

ive been using this website to help figure out where each gear tops out. has options for tire size, and rpm. most honda transmissions. its seems to be pretty accurate. also allows you to compare 2 different transmissiosn.

http://www.fatboyraceworks.com/gears/

b18sihatch

what about me.

fulley built b16 (9k rev)
LS transmission (LSD) (traction bar)
550whp
fulley gutted ef (no ac,interior,heater core,sunroof assembly) (2 seats and 6pnt roll cage)

complete suspension upgrade (one off sway-a-way aluminum bodied coilovers with nitrogin ports (200psi inflation for stiff ride) energy suspension bushings all around,front & rear strut bar

tires as of now unknown however what about a decent size slick.

what do you guys think?

also running the full race ProStreet Stage 3 GT kit with 82 A/R