Measuring engine rpm?

Reply Subscribe

Thread Tools

Search this Thread

Aug 19, 2020 | 04:11 PM

Bhebert449

Thread Starter

Pro

Joined: May 2013

Posts: 570

Likes: 22

Measuring engine rpm?

What is the best way to measure engine rpm without a tachometer? Don’t want to spend a lot on a device I will not use very often.

Aug 19, 2020 | 04:21 PM

MelWff

Race Director

Joined: May 2006

Posts: 18,662

Likes: 2,563

I assume you mean without a working in car tachometer?
Look at Harbor Freight automotive multimeter includes tach

Aug 19, 2020 | 05:08 PM

Domobomb

Racer

Joined: Jan 2012

Posts: 321

Likes: 16

From: Ontario

My dial back timing light shows RPM.

Aug 19, 2020 | 05:19 PM

Bhebert449

Thread Starter

Pro

Joined: May 2013

Posts: 570

Likes: 22

I found a multimeter at harbor freight that measures rpm.

Aug 19, 2020 | 05:50 PM

Domobomb

Racer

Joined: Jan 2012

Posts: 321

Likes: 16

From: Ontario

For not much more you can get dial back timing light that shows rpm and you'll also be able to set total ignition timing by using the advance function.

https://www.summitracing.com/dom/par...illocation=dom

Aug 19, 2020 | 06:32 PM

Bhebert449

Thread Starter

Pro

Joined: May 2013

Posts: 570

Likes: 22

Quote:

Originally Posted by Domobomb

I thought about that but already have an advance timing light. I’ll probably return the multimeter after I use it.

Aug 19, 2020 | 09:06 PM

bashcraft

Le Mans Master

Joined: Jan 2006

Posts: 6,504

Likes: 139

From: Butler Pa

Quote:

Originally Posted by Bhebert449

I’ll probably return the multimeter after I use it.

So you're one of those cheap bastards that return a tv after watching the super bowl?

Aug 19, 2020 | 09:14 PM

resdoggie

Had a 1976 L-82, 4-sp

Joined: Mar 2011

Posts: 5,338

Likes: 1,213

From: Some days your the dog and some days your the hydrant.

Royal Canadian Navy

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Joe Kucinski

8 Coolest Corvette Pace Cars (and Replicas) of All Time

Verdad Gallardo

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Joe Kucinski

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Verdad Gallardo

Top 10 Corvettes Coming to Mecum Indy 2026!

Brett Foote

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Michael S. Palmer

10 Revolutionary 'Corvette Firsts' Most People Don't Know

Joe Kucinski

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Michael S. Palmer

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Joe Kucinski

10 Most Common Corvette Problems of the Last 20 Years!

Joe Kucinski

Aug 19, 2020 | 09:23 PM

Bhebert449

Thread Starter

Pro

Joined: May 2013

Posts: 570

Likes: 22

Quote:

Originally Posted by bashcraft

So you're one of those cheap bastards that return a tv after watching the super bowl?

lol. I only need to use it once.

Aug 19, 2020 | 09:30 PM

#10

Big2Bird

Le Mans Master

Joined: Dec 2006

Posts: 8,837

Likes: 1,028

Get an Inova and trash the rest. (Or return them).

Aug 19, 2020 | 09:31 PM

#11

DWAVette

Drifting

Joined: May 2020

Posts: 1,661

Likes: 701

From: Baton Rouge, Louisiana, metro area

Cheap

I guess as long as you don’t return the toilet after you’re done, I am okay with your plan!!

Aug 20, 2020 | 01:12 AM

#12

Bikespace

Race Director

Joined: Mar 2017

Posts: 11,904

Likes: 4,475

From: Virginia

Quote:

Originally Posted by Big2Bird

Get an Inova and trash the rest. (Or return them).

Exactly! Innova 5568. It works well to check RPM, and you can even use it to set your timing.

What kind of person returns tools? That's crazy-talk!

Aug 20, 2020 | 12:05 PM

#13

Easy Mike

Team Owner

Joined: Jun 2000

Posts: 38,923

Likes: 1,481

From: Southbound

Cruise-In II Veteran

Quote:

Originally Posted by Bhebert449

...I only need to use it once...

Use it, then put it up for sale in Parts for Sale.

Last edited by Easy Mike; Aug 20, 2020 at 12:06 PM.

Aug 20, 2020 | 01:28 PM

#14

7T1vette

Team Owner

Joined: Jan 2006

Posts: 37,637

Likes: 3,114

From: Crossville TN

BORROW ONE !!! If you don't know anyone with a portable tachometer, call Auto Zone, Advance, or O-Reilly's and ask if they have one you can use or rent for a day.

Aug 20, 2020 | 01:59 PM

#15

71chimera

Burning Brakes

Joined: Jun 2020

Posts: 881

Likes: 113

I already have an oldie but goodie dwell meter w/ tach similar to one below.
But if that's all I needed, perhaps I'd make an offer on this NOS
https://www.ebay.com/itm/VINTAGE-SUN...IAAOSw-Fpegoox