okay, im jw if this is normal.
im cruzing down the highway at 65-70, and my rpm's are around 4-5 grand...
is this normal?

its a dx tranny, on a stock d15b2 bottom end.

 

btw thats in 5th gear.

 

What size tires and wheels(it makes a difference). But no matter what, that RPM is to high if your tach is accurate. It should be around 3000 RPMs plus or minus 500 at that speed.

 

http://crx.honda-perf.org/math/index.html

 

14 inch rims. idk the tires.lol.

 

that rpm and speed with DX transmission would be about right for 3rd gear

 

so what can i do to fix this problem?
5th gear at 70 is around 5 grand. and it said it should be 3ish.

 

your final drive has been swapped, you have some whacked hybrid tranny, or your tach signal is just screwed/or cluster swapped improperly, and theres nothing actually wrong...

 

What is your RPM in 4th gear. Is it possible you're in 3rd instead of 5th, maybe something wrong with your shift forks?

 

i know its not my gauges...
for some reason, all my gears are shorter. im going to have to get ahold of the previous owner of it, and see if he did something to it... is there an easy way of swaping 5th gear drive?
i wanna go on a road trip soon, but not like this. lol.

 

ill let u all know about the rest of the gears in like, 2 hours.

 

i DO remember something!
the block and tranny came out of a 90's civic... would that make the tranny different?

 

http://www.knology.net/~jediklc/gearratiosdseries.htm

 

70 mph. 5th gear. 4000RPM...
if feels like all my gears are short.
maybe its an si tranny?
my buddy has an si tranny, and when he is gong the same speed, he is at 3000.

a few people said it was my clutch?

 

If your clutch was worn out it might slip and the motor would turn over faster than the wheels, but when you let off the gas the tach would drop back to where it should be (~3000 in this case). Plus you'd definitely notice the smell/loss of power if the clutch was that bad.

If all of your gears are shorter than they should be, you probably have a swapped final drive.

 

damn. =[
so that means i should get a different tranny?

 

AND when i let off the gas, she stays at 4000. =/
i guess its time for a tranny swap!!
ill save the old one just because its AMAZING if i was to race someone, because the gears are soo short. lol.


would it be cheaper to re-swap final drives with a dx tranny??
how hard is that to do?

 

Based on the sound, does it sound like you are turning 4k/5k rpm at that speed?

If it is a super short tranny, then yes, you will be noticeably slower with the correctly geared tran.... I wonder if you could just have a shop swap out the 5th gear...

 

heres a fun fact for you all. i got told by someone that it might be my cpu???

 

Who told you that?

Have you checked the stamping near where the passenger side axle is? I have an SI transmission and I think I'm around 80mph at 4000rpm. I'll double check on the way home

 

haha. alright man. have fun! dont get a ticket! =P

 

If you have an Si tranny and a racing clutch on it, whats wrong with short gears?

 

nothing is wrong with it... i just wanted fuel eco. lol

 

At 70 mph I'm at 3k rpm.

 

hmm. i am getting different things from everyone...
i have a mini me swap done, and a friend told me it could be that, there could be something wrong with my tach, idkidkidk. =/
BUT i have been getting told its normal? but my bro's crx and my others crx, both are about 3 grand at 70mph.
BUT i let the guy drive it, and he said it was normal?
hmmmmmm.