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Buying a wps (Read 2,557 times)
C.A.R
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Buying a wps
Aug 9th, 2017 at 5:54pm
 
I need to purchase a transducer for my pico. I was going to rig up my snap on transducer but, from what I'm reading that style transducer just flat out sucks for in cylinder testing. So the real question is what kit from autonerdz should I buy? What is the benefits of have more than 1 wps? What kind of test would I need 2 transducer for? Last but not least can I adapt my mac tools compression gauge adapters to the wps?
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Mick
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Re: Buying a wps
Reply #1 - Aug 9th, 2017 at 7:52pm
 
C.A.R wrote on Aug 9th, 2017 at 5:54pm:
I need to purchase a transducer for my pico.


That's good to know

C.A.R wrote on Aug 9th, 2017 at 5:54pm:
I was going to rig up my snap on transducer but, from what I'm reading that style transducer just flat out sucks for in cylinder testing.


Its good you are still doing your homework.

C.A.R wrote on Aug 9th, 2017 at 5:54pm:
So the real question is what kit from autonerdz should I buy?


You should buy what you can afford and then build upon your choice. Wink

C.A.R wrote on Aug 9th, 2017 at 5:54pm:
Last but not least can I adapt my mac tools compression gauge adapters to the wps?


What are these adapters that you talk about?
Are they something the WPS kits dont have?
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autosparky
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Re: Buying a wps
Reply #2 - Aug 10th, 2017 at 2:20am
 
By the time you end up buying all the add-on fittings, it's worth more than another WPS!!, but you may end up buying 2 of everything anyway

don't stop there, I was fortunate to get 1 client to buy me another WPS so I could scope duel pressures.

I'm doing cylinder pressure testing 2 at a time, it makes comparing pressures so much easier.
Comparing intake vs exhaust vs crankcase breather on the same page also much easier

check this bank1 vs bank2
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Spence
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Re: Buying a wps
Reply #3 - Aug 10th, 2017 at 5:32am
 
C.A.R wrote on Aug 9th, 2017 at 5:54pm:
I need to purchase a transducer for my pico.


When you do you'll be glad you did.

C.A.R wrote on Aug 9th, 2017 at 5:54pm:
Last but not least can I adapt my mac tools compression gauge adapters to the wps?


We just did a comparison yesterday between the SnapOn compression hoses and the ones the come with the WPS. The SnapOn's had a 9 t 10 percent lower reading on the same test in the same cylinder. I feel we know why there is a difference but the jury is still out on it.

If you use the same hose in ALL the cylinders for comparison you could get away with it on either hose, just don't use one for one cylinder and a different hose or setup for another. I would say pick an engine that you can use a hose from each to compare.

Spence
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C.A.R
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Re: Buying a wps
Reply #4 - Aug 10th, 2017 at 6:14am
 

mick
I'm sure the pico kits do I was just wondering if I could get away with the cheapest kit.

thank you all for your input.

I think ill do the $999 kit when I have the mullah any arguments on why I should jump up to the $1499 kit.
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Mick
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Re: Buying a wps
Reply #5 - Aug 10th, 2017 at 10:14am
 
C.A.R wrote on Aug 10th, 2017 at 6:14am:
thank you all for your input.


Your very welcome.

C.A.R wrote on Aug 10th, 2017 at 6:14am:
any arguments on why I should jump up to the $1499 kit.



If all you can afford right now is the $999 kit I would insist you add 3 pieces
TA 214
TA 219
TA 220
Then you will be covered for all sparkplug types.

The argument would be in the end you will wish you had all the other goodies one day, when your on a vehicle and you reach down into that not so full WPS box and the piece you need is not there. you might swear so loud that we will hear you up here in Canada Cheesy
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cwinkler2
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Re: Buying a wps
Reply #6 - Jan 10th, 2018 at 8:24pm
 
so i just bought a pico yesterday. asewave told me i could use my snap on transducers with a couple of adapters. so my questions is am i not going to get good results with these? am i wasting my time trying to use these? they seemed to work well with my snap on equipment.

thanks for all the help first day here look forward to chatting with everyone
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Tom Roberts
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Re: Buying a wps
Reply #7 - Jan 11th, 2018 at 8:13am
 
cwinkler2 wrote on Jan 10th, 2018 at 8:24pm:
am i not going to get good results with these?


That is correct.† We tested many brands..† Snap-On, ATS, etc, as well as no name transducers.† They all had the same issue:

They are not accurate under dynamic conditions such as running compression.† Values are accurate during static pressure testing or when pressures change slowly.† But values skew quite a bit when pressures change rapidly.† We saw things like negative 30 pounds.† Of course, there is no such thing...† You will get a decent 'looking' waveform with the Snap-On but the devil is in the details.

The old design PV350 didn't have this problem but I understand the new one is not good (we have not tested one).† So, I would have to say that I know of no other transducer currently available that is accurate other than the WPS.

Even if one of these was accurate, none of them allow you to burp the air out of the line.  Therefore you always have air trapped in there that affects your readings when measuring liquid pressures. 

Keep in mind that, as a Picogroup member, we will do our best to price match on anything Pico automotive for you.†
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bravo92
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Re: Buying a wps
Reply #8 - Jan 25th, 2018 at 9:24pm
 
if you buy the master kit it comes with the ford triton spark plug adapter for that kind of plug thread .. you would use two wps for in cylinder testing and using another channel to measure vacuum at the intake
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