RPM Chart

Reply Subscribe

Thread Tools

Search this Thread

Oct 21, 2009 | 02:23 PM

dsmithh

Thread Starter

Advanced

Joined: Jun 2009

Posts: 74

Likes: 1

From: Fort Wayne IN

RPM Chart

I am interested to see if my overdrive unit is operational or not. I don't see an RPM difference with O/D on or off, and last night I was seeing 3000 RPM at 70MPH <1988 Car>. Is there an RPM chart available, or does this sound about right?

Oct 21, 2009 | 03:24 PM

AGENT 86

Team Owner

Joined: Jan 2003

Posts: 20,297

Likes: 240

From: Summerland B.C. Canada

Your OD is not engaging, I think I'm around 1700 at 70 mph.
http://members.shaw.ca/agent86/OverD...Electrical.pdf
http://members.shaw.ca/agent86/Overdrive-manual.pdf

Oct 22, 2009 | 01:07 PM

dsmithh

Thread Starter

Advanced

Joined: Jun 2009

Posts: 74

Likes: 1

From: Fort Wayne IN

RPM Chart

Quote:

Originally Posted by AGENT 86

Your OD is not engaging, I think I'm around 1700 at 70 mph.
http://members.shaw.ca/agent86/OverD...Electrical.pdf
http://members.shaw.ca/agent86/Overdrive-manual.pdf

Thanks for the great information. I wonder what you think of this scenario. With the OD lamp on the Dash, I can downshift, and don't 'feel' anything slowing the car when I release the clutch. With the OD lamp off, I can downshift and feel the car being slowed by the transmission. Is there some feedback to the main transmission as to whether the OD is engaged?

Oct 22, 2009 | 06:03 PM

383vett

Race Director

Joined: Apr 2003

Posts: 17,699

Likes: 1,667

From: moraga ca

At cruising speeds the difference between od and no od should be like night and day. Sort of like a fifth gear. If you are taching that high, it is not fuctional.

Oct 23, 2009 | 01:07 AM

nitronick

Race Director

Joined: Dec 2004

Posts: 15,007

Likes: 2

[QUOTE=AGENT 86;1571894282]Your OD is not engaging, I think I'm around 1700 at 70 mph.

Reply Subscribe