I compression test enough. I might as well buy one. Who here owns one? Does anyone have this one? Any recommendations?

http://rotarydiagnostics.com/model_rect-03b.htm

 

went to napa got a compression tester that had an inline shrader valve. I used my shrader valve tool and backed it out .3 to.50 turns so it would blead off. used my remote starer jumper to crank it over..( pull the fule pump relay!!!!!!) drink 10 cans of mt dew you will need this to see how fast the guage goes up and down.. mine were all within 5psi.. good luck... john

 

Yeah there is no way I can see it with a regular compression tester. Maybe I should find someone with ADHD. I am sure they would be able to read it LOL

 

I DO! I DO!

I'm proud to say I was one of their first customers. I have seen and used the factory tester (broken half the time), I've used the standard piston engine tester (hard to see rotor chamber pulses) and this tester by far blows the others away.
I talked to the proprietor in the early days of his development when I was at the track one weekend and couldn't believe no one else had developed a cheaper alternative to the factory unit. I told him he was sitting on a goldmine.

As for the tester itself I must admit I like the fact I can see the pulses more clearly on a computer screen than some cheap dial gauge or a numerical readout but more so that I can simply save an electronic file and review later at any time. Kinda proof of what I saw.

I didn't have any trouble setting up the software on my laptop and it worked from the getgo. I've used it several times already and when there is any doubt about the condition of my engine it's takes less than 30 minutes to run a test. I've even considered doing a baseline of my most recent rebuild to watch compression numbers over the life of the engine.

And the icing on the cake is they send me updates regularly. I even upgraded to the dual transducer setup so I don't have to screw around with a single trasnducer. Just screw in the pressure transducers and turn over then engine a few times and voila. Compression results from both rotors. It couldn't be easier.

Regards,
Crispy

'93 FD ...ported engine/GT35R powered
'90 FC ITS #47

 

I read all the info on the site. It seems like a great buy. If I get reimbursed for my engine that *not*mentioning*shops*name* effed up I will be all over this compression tester.

"I've even considered doing a baseline of my most recent rebuild to watch compression numbers over the life of the engine"

That sounds interesting. I may join you on that one! When I can scrounge up enough $$ to buy the neat little device

 

i have plans to make my own tester that will read the compression of each rotor
. it will have 3 either digital or needle guages and it will hook up to the cas sensor
to identify each face.

 

anyone has sone connectors for the cas sensors,im willing to pay for them

 

how much is it dident see a price?

 

sorry my bad.....

 

Search differential compression tester. They are about $75. It works by blowing regulated air into the combustion chamber , and you read the guages, air in versus air leaking out, to determine % of chamber leakage. Most aviation tool suppliers carry these

 

I think I am going to order one tonight! Enough driving an hour each way+the wait time+$85 to get it done by the closest rotary shop.

I am an idiot when it comes to electrical things. This will be a good test on how foolproof it is. LOL

http://rotarydiagnostics.com/model_rect-03b.htm

 

Exactly my thought. Use this tester only 4 times and it will have paid for itself. And this isn't even including the value of your time to set up an appointment, getting to and from the shop, waiting for them to test your car (I've never been to a shop that keeps an appointed time), and the time for them to test your car.
Granted you will have to spend some of your own time learning the system but the long term benefit IMHO is well worth it.

A word of caution though, beware of who you let know that you have the tester or else everone and thier brother with an FD will want you test thier car!

Regards,
Crispy

 

I'll pay you a few bucks to test mine if you get it.

 

I ordered it tonight. To compression test a rotary car in San Diego you have to go to Autotech for $85 or go up to L.A.

I was thinking of offering a compression test "service" lol

Ill think about that When do you need it tested?