why does my rpm vary from day to day, yesterday 70mph=3000rpm today 74mph =3000rpm
I have a d15b and a 5 speed.

 

Is it a tone difference too like the rpms sound higher/ lower? if not your speedo could just be miss reading from bumps or somethin

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sbcs15 &raquo;</TD></TR><TR><TD CLASS="quote">why does my rpm vary from day to day, yesterday 70mph=3000rpm today 74mph =3000rpm
I have a d15b and a 5 speed.</TD></TR></TABLE>
wind, slope, load, gas quality, air temperature, engine temperature, almost anything else you can possibly imagine, etc.

 

Just be glad you're not going 70 and at 4k RPMS like I am. Damn GSR trannies.

 

my dx motor and tranny crusies at 70mph at 3,600. its weak as hell too

 

speedometers are in accurate above 65mph. not completely inaccuarate but sort of.

 

3600 at 70 mph sounds high for a dx tranny, Im pretty shure my old dx tranny cruised at 70 - 2500 rpms or less.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by duggy &raquo;</TD></TR><TR><TD CLASS="quote">Just be glad you're not going 70 and at 4k RPMS like I am. Damn GSR trannies.</TD></TR></TABLE>

i second that motion ugh!

 

80 im at 3500 on a lx

of couse my vss is going bad so sometimes im doing 0 mph at 2500 rpms in 5th gear lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by transpar_nt &raquo;</TD></TR><TR><TD CLASS="quote">
wind, slope, load, gas quality, air temperature, engine temperature, almost anything else you can possibly imagine, etc.</TD></TR></TABLE>


please explain......I just don't understand how slope or wind could affect a standard transmission......unless it was slipping. Maybe I am just missing something here.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by duggy &raquo;</TD></TR><TR><TD CLASS="quote">Just be glad you're not going 70 and at 4k RPMS like I am. Damn GSR trannies.</TD></TR></TABLE>

i third that motion! esspecially with my LS that redlines at 6800

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by duggy &raquo;</TD></TR><TR><TD CLASS="quote">Just be glad you're not going 70 and at 4k RPMS like I am. Damn GSR trannies.</TD></TR></TABLE>

not unless that is the 92-93 gsr cable tranny that is wrong, 94 up gsr hydro tranny is 80 at 4000 rpm. and how many minutes is 4000 rpms is that? lol

and as far as the speed vs. rpm question, your tach or speedo is not working correctly put i would really worry about it.

 

i have a D15 too. and my civic LX cruisese at 70 mph at 4100. My buddies Lude cruises HIGHER than that at 70. but mine does that just cause its a slug and it has to try harder to go 70.

on a side point, my hood is temporarily bungie corded down for various reasons (long story) and i was happy to get my car running after an accident so i was having fun and i hit 70 mph and my fu#$ing hood started to come up lol! it scared the sh#$ outtta me!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by old man neri &raquo;</TD></TR><TR><TD CLASS="quote">please explain......I just don't understand how slope or wind could affect a standard transmission......unless it was slipping. Maybe I am just missing something here.</TD></TR></TABLE>
If you're driving up a hill or against wind the engine will have to push harder to maintain the same speed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by transpar_nt &raquo;</TD></TR><TR><TD CLASS="quote">
If you're driving up a hill or against wind the engine will have to push harder to maintain the same speed.</TD></TR></TABLE>

I understand that. But would the rpms not be the same...........

 

my dx at 75mph is at 3k rpm exactly.

 

doesn't the clutch lock your engine and tranny together ,say 1 to 1, if the engine turns once the wheels would turn once

 

i cruise to work and school EVERY day on the highway, at 80 mph im at 4.4k

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by old man neri &raquo;</TD></TR><TR><TD CLASS="quote">I understand that. But would the rpms not be the same...........</TD></TR></TABLE>
yeah, you're right. I guess i was thinking more gas consumption, not really rpms.