V1 GM STAGE 1 SENSORS

[Zoom Zoom]

I received this in the mail today, but only one fits out of 2 the one on the intake fits (it’s 4 prong)
But the 3 prong want fit on the tube by filter do I need to change that one. I just ordered the remote tune from ZZP so we will se how good it works !

 

[Justin]

The other one goes on your intake manifold, you may need to remove some material from the metal on the bolt hole to get it to line up properly or at least I had to

 

[Justin]

Oh and by bolt hole I mean the metal insert on the sensor where it bolts down

 

[Zoom Zoom]

Oh and by bolt hole I mean the metal insert on the sensor where it bolts down

Thank you very much
I had forgotten about that one sense it’s covered up now

 

[Zoom Zoom]

The other one goes on your intake manifold, you may need to remove some material from the metal on the bolt hole to get it to line up properly or at least I had toView attachment 20330

Do you know what these green o-rings are used for,
Update —— I ended up using the bigger black o rings that are on the GM STAGE 1 sensors , they were tight to get in ( Vaseline on rubber ) but I figured better seal that way.

 

[pisco]

Do you know what these green o-rings are used for

They are a different size
I had to swap mine in the manifold for proper fit.

 

[TheNuker]

Where does the second sensor actually mount? I got the one on the intake manifold installed, but can't see anywhere else the second one goes?

Thanks,
Nuker-

 

[Zoom Zoom]

Where does the second sensor actually mount? I got the one on the intake manifold installed, but can't see anywhere else the second one goes?

Thanks,
Nuker-

Did you see this

 

[ctuinstra]

Why do you need two? The one is only atmosphere pressure and I sure hope we never get to the point of needing 3 bar to measure atmosphere. The only reason I can think of is to work with the new file they require for the other intake MAP.

 

[ctuinstra]

Why are you all going to 3 Bar? What boost pressures are you experiencing or expecting?

 

[Zoom Zoom]

Did you see this

Why are you all going to 3 Bar? What boost pressures are you experiencing or expecting?

ZZP told me the stock ones usually blow with the 25 pounds of boost with the Z54 turbo

 

[ctuinstra]

ZZP told me the stock ones usually blow with the 25 pounds of boost with the Z54 turbo

Ok. I didn't know you were going to push that much boost. Wow.

 

[KSLunsfo]

Why are you all going to 3 Bar? What boost pressures are you experiencing or expecting?

Well, I'm currently still on stock MAPs since I'm just now getting drive-able. Supposedly the stock MAP is rated up to 2.7Bar (but the same place I'm reading that is saying that's equivalent to 24.65lbs, which I'm not completely positive about). 1bar is 14.5 psi, a 3 bar map sensor allows you to accurately read up to 43.5 psi which is quite a bit...

Anyone know if the stock is truly 2.7bar(39.15psi)? If so I definitely don't see much benefit in gaining 0.3bar...

Edit:
Now questioning myself and whether or not the bar range is WRT to absolute or gauge pressure... If it's WRT to absolute then 2.7bar would be 24.65psi... maybe I've misunderstood how MAP sensors are rated lol...

 

[ctuinstra]

Well, I'm currently still on stock MAPs since I'm just now getting drive-able. Supposedly the stock MAP is rated up to 2.7Bar (but the same place I'm reading that is saying that's equivalent to 24.65lbs, which I'm not completely positive about). 1bar is 14.5 psi, a 3 bar map sensor allows you to accurately read up to 43.5 psi which is quite a bit...

Anyone know if the stock is truly 2.7bar(39.15psi)? If so I definitely don't see much benefit in gaining 0.3bar...

Edit:
Now questioning myself and whether or not the bar range is WRT to absolute or gauge pressure... If it's WRT to absolute then 2.7bar would be 24.65psi... maybe I've misunderstood how MAP sensors are rated lol...

Conflicting information on the stock MAP. Most say it's only 1 Bar.

 

[KSLunsfo]

Conflicting information on the stock MAP. Most say it's only 1 Bar.

That's more what I would assume it was. I didn't look too hard, but that was from one of the first results at CobaltSS.net.

What's the stock boost levels these run? That would be somewhat telling of the OEM map sensor spec.

 

[ctuinstra]

That's more what I would assume it was. I didn't look too hard, but that was from one of the first results at CobaltSS.net.

What's the stock boost levels these run? That would be somewhat telling of the OEM map sensor spec.

Stock, not over 14.7, I believe it's more around 12. Ours with a 2.9 pulley will top out at 15-16 PSI. I suspect they will handle that and a little more. I can see how 25 would blow them out.

 

[KSLunsfo]

Maybe we're mixing SC/TC here. Maybe there's some difference with respect to the sensors/boost levels?

Guess I'm being a bit lazy in my researching this but most of my searches take me to the cobaltss.net forum. Wow is that forum almost useless... like watching a bunch of 10 year olds try and explain things to one another while failing miserably at staying on topic...

 

[ctuinstra]

Once again I guilty of assuming everyone owns the exact same donor as I do.

Yeah, you know you can trust everything on that Internet forum.

 

[Rauq]

A 3 bar map sensor includes the 1 bar from vacuum to atmospheric. So when Kyle's talking about a 2.7 bar sensor, that's actually 2.7 bar - 1 atm = ~24.5 psi "boost pressure"

Same difference between gauge pressure and absolute pressure.

 

[Mayor West]

FYI anyone wanting the GM Stage 1 sensors but not wanting to pay 120$+ for them from ZZP, you can buy the sensors for 19$ each (you need two) from this guy. You have to wire them yourselves, but it's incredibly easy.

LNF 3-Bar Map Sensor (Stage Kit Item) 55206797B | That GM Parts Guy

part # 55206797B - LNF 3-Bar Map Sensor (Stage Kit Item)

www.thatgmpartsguy.com