beginmyhonda

i have a dx motor i dont know what transmission it is though
but at 70mph my rpm is @ 3k on 5th gear
is that a dx or ex tranny?
thanks

kp

I have a cx and that seems to be close to what mine runs at. Possibility it might be a cx?

Edit: Check out this link, you can choose different trannys in the pull down list below either one of the graphs. You can compare ratios and such...


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

95streetciv

Nah, he doesn't have a cx transmission.
Its possible its an ex/si. My ex runs about 70 at 3000rpm in 5th I think.
Will have to double check at lunch.

beginmyhonda

was told its a dx

ohsnapzafingcu

iTrader: (2)

my ex was at 4k at either 80 or 90 iirc

beginmyhonda

im not sure if the different engine affects the speed and rpm or it does not?

can u guys check 65-70mph in 5th gear @ what rpm you are at
thnx

apexi_rsx

5th at 70 in a ex trans is about 3.2 or so

wakajdm8732

agreed. When I had a single in my EX I was doin about 3200 to 3500 in 5th at 70. Now I do 3000 in 5th at 55mph lol.

beginmyhonda

so i dont have an ex tranny but its very close
okay so can anybody with a dx tranny compare their speeds @ 65-70mph in 5th gear @ what rpm

95streetciv

Well for what its worth, on my my way to work today, I took note of my RPM at 70, and it was 3000 rpms exactly. I have a stock '95 EX transmission.

My speedo could be off though.

hondamark35

check the link.

transmission calculator

you can put the EX in one and the DX in the other and compare. check the graph for RPM at MPH. don't neglect to get the right tire size in there.

EDIT: the calc shows 70mph with DX wheels and tires that the DX trans is at 3150 RPM and the EX is at 3299.

I've driven by enough of the "your speed is" signs that local PD sets up to know that my speedometer reads 4MPH higher than actual speed. original wheels and tire size. just FYI.

beginmyhonda

hey your link leads to a engine compression calculator

yes i know that it is off by 4-5 mph because i got a gps

guess only thing to really know is to pop out the case and count the teeths lol

hondamark35

my bad. that was the main page. the trans calc was one of the tabs at the top. link fixed.

here's a how-to from Bense for identifying without cracking the case.

beginmyhonda

wow thats alot of math

Geo4k

I understand that you were looking for info on the DX and EX trims, but just as a FYI, my HX turns about 2800 @ 70 in 5th on stock size tires and wheels.

ev94eg

at 90 in fifth im at about 3650 rpm

edit: dx transmissionwith a d15b7

CrackingVTEC

iTrader: (2)

Man Thats bullsh*t. LOL I'm at 4,100 RPM @ 73mph..

B18C Gsr gears with type r lsd and ls final drive..

beginmyhonda

b series transmission are in way higher rpms at hwy speeds

well looks like mines a dx transmission

thanks for the help

elton_23

ya my b16 tranny is at like 4500

NOFX

It's Bense. That's nothing.