PLEASE respond!!

keefer

T1
Location
Tennessee
I think that is the right one. Mine is a MT308L and it looks exactly the same. This is the best one IMO and it will give you accurate measurments for years if you take care of it. Go for it, you won't be sorry.
 

keefer

T1
Location
Tennessee
You get what you pay for, I have seen too many cheap guages give inaccurate readings that can be off as much as 20 lbs. If I was building a high comp engine I would want the real numbers so I could make the right decisions on timing, fuel octane, etc.
 

crammit442

makin' legs
Location
here
When building high performance engines that cost over 3000 there is a need to spend 200...


Exactly! That reminds me of people with thousands of dollars in their motors trying to save a couple of dollars by running AV gas instead of race gas.:scratchchin: That's the same compression tester I have and mine works awesome and always tests accurate against known pressure sources. I snagged mine on Ebay a few years ago for a little over $100.

Charles
 

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
so, wouldnt a squish test or CCing the domes give a better idea than a compression tester?

cheap guages are JUST as accurate when new. and in my experience, if the cheap guages came with the felt lined case, and you treat the cheapy guage as lightly as a $200 guage, they will read very VERY close.

My experience only, nothing more.
 

norcal ex

X-H2
Location
San Jose, CA
when building custom engines , especially flattop engines there are many different variables. squish, dome size, bore size, port timing exhaust port.... you get the idea. a quality gauge is worth it. Also, I only use snap on or craftsman tools, nothing less! i buy all my tools as lifetime investments.
 

GIL

Power In The Hands Of Few
Location
Cullman AL
Bro-listen to the guys-Snap On is expensive-but u do get what u pay for.
I have thousands of dollars in a top box only and never have a Snap On tool fail.
 

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
gotcha,

and if a costly tool makes you trust it more, then thats good.

I trust my cheap gauges, I test them side to side, and along with an air compressor, and regulator, so I get a feel for how 'off' they are, and for the several ive messed with, they are dead on when new.

If you open up one of the high quality gauges, I am reasonably certain you will find the same parts, the different is in hose length, and the placement of the schrader valve.

I wish now, I didnt throw all of mine around, and beat them to death in my tool box(es)
 

Lucas

Surf Junkie
Location
US
In a way MAYBE it would be better to buy a 50 dollar one every year or so, due to calibration, unless you know some one who can check the calibration for you, because all gauges MAY lose accuracy, I work in aviation, and most of our stuff is snap on, and any thing with a gauge is sent to be re-calibrated every 90 days, so my opinion is buy not a cheap one, but not a 200 dollar one somthing in between, and get a new one that you know has just been calibrated every year or so.

I have no clue if there even off when they get sent out to get calibrated or if its just a check, but its just a thought since you guys are seeming to worry about accuracy so much. How do you know your 200 dollar gauge is still good after 5 years??? I would take a new 50 dollar gauge over a 3 year old 200 dollar gauge that hasnt been tested.
I dont know maybe it could be worth it if you know it is well taken care of and never dropped or bumped hard and what not, but its a tool, ******** happens.
Lucas
 
Last edited:

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
funny that you should mention that.

I worked in an F.A.A. shop for a while, I was very interested in the calibration lab.

:bigok:

In a way MAYBE it would be better to buy a 50 dollar one every year or so, due to calibration, unless you know some one who can check the calibration for you, because all gauges MAY lose accuracy, I work in aviation, and most of our stuff is snap on, and any thing with a gauge is sent to be re-calibrated every 90 days, so my opinion is buy not a cheap one, but not a 200 dollar one somthing in between, and get a new one that you know has just been calibrated every year or so.

I have no clue if there even off when they get sent out to get calibrated or if its just a check, but its just a thought since you guys are seeming to worry about accuracy so much. How do you know your 200 dollar gauge is still good after 5 years??? I would take a new 50 dollar gauge over a 3 year old 200 dollar gauge that hasnt been tested.
I dont know maybe it could be worth it if you know it is well taken care of and never dropped or bumped hard and what not, but its a tool, ******** happens.
Lucas
 

Scorn800

Ride for life
Location
North NJ
I own both. A crappy comp tester than screws in with adapters. Was $29 bucks off ebay has been 15psi off since the day I got it. tested in back to back with a snap on.
I found an old push in snap on compression tester my grandfather had. It leaked back.
Gave it to my snap on guy and he replaced with a brand new 1 for 1/2 price. About $45.
I tested the snap on hold it style verus the screw in and get same numbers. The only this that sucks with push in is you need a person to the start the boat and a person to hold the gauge.
Buy a snap on
 
Last edited:
I have a craftsman gage and it still reads the same after 5 years. I test it about every 6 months or so. (or when I think of it) I hook it straight to the air line which has 3 different gages on it and I use a gage or 2 also on the schrader valve. None of the gages read more than 10 pounds different and the craftsman is usually right in the middle.
 

hermanns

poor
Location
gainesville, fl
Bro-listen to the guys-Snap On is expensive-but u do get what u pay for.
I have thousands of dollars in a top box only and never have a Snap On tool fail.

Snap on is overrated IMO. I used to work at a trim shop and had several snap on tools break. The only good thing about them is the warranty, but the price is insane. A snap on socket is not better than a cheap one, I don't see either of them breaking. For personal use, I use whatever I can get cheapest as long as it looks decent, and I too have never had a failure. Your right, you get what you pay for, and in snap ons case, that happens to be a rip off. Some things may be better off with a name brand like power tools, but a snap on end wrench is not any better than a 'lesser' brand.
 
Last edited:
Top Bottom