[Riceball777]

Both the 3.5 and the 4bar map sensors are the same price. Is there any benefits from one or the other? Which one should I buy? I'll never boost over 30psi and I know the 3.5 bar is good to 36psi.

[bradsm87]

Go 3.5bar then. Theoretically more accurate.

[Torgus]

I got the 4 bar as it was half the price of the 3.5.

[Young_Man]

I was going to be asking this same question once my turbos shipped lol

[=C=]

What's the stock bar Tmap sensor?

[Riceball777]

Originally Posted by =C=

What's the stock bar Tmap sensor?

I believe the stock tmap sensor is a 2.5 bar so it's good to about 21psi.

[J. Dub]

3000GT MR What say you? I read somewhere the N20 3.5 sensors that people were using were having issues.

[Cory S]

OEM 3.5. $78.00 shipped on Ebay.

[Riceball777]

I bought the bms 4 bar map sensor and have been useing it with no issue for the past few months now.

[pits200]

Originally Posted by Cory S

OEM 3.5. $78.00 shipped on Ebay.

This is what I did, purchased a used one from ebay.

[Torgus]

Originally Posted by Riceball777

I believe the stock tmap sensor is a 2.5 bar so it's good to about 21psi.

The issue is when you get close to its max. Terry recommends if you get within 2-3 psi of the max to upgrade. So anything about 19psi basically.

4 bar is not that expensive I have one installed.

[J. Dub]

Originally Posted by Cory S

OEM 3.5. $78.00 shipped on Ebay.

Originally Posted by pits200

This is what I did, purchased a used one from ebay.

Cory S & pits200 What all is needed beside the 3.5 TMAP? A new o ring? Extended bolts? A harness?

[pits200]

Haven't installed yet but I know you need the bms 3.5 adapter.

[Cory S]

Originally Posted by J. Dub

Cory S & pits200 What all is needed beside the 3.5 TMAP? A new o ring? Extended bolts? A harness?

Not a thing. New sensor comes O-ring, and you can re-use the existing screws. I modified the harness and inside the connector with a Dremel.

[J. Dub]

Originally Posted by Cory S

Not a thing. New sensor comes O-ring, and you can re-use the existing screws. I modified the harness and inside the connector with a Dremel.

Well shit, I can't find any info except here. Thanks. I will get the 3.5bar instead of the 4 bar. I keep hearing the 4bar may or may not have bolt issues depending on chargepipe you have.

[Young_Man]

Are the 3.5 and 4 bar both good for 40psi?

[CanadianTSi]

Originally Posted by Young_Man

Are the 3.5 and 4 bar both good for 40psi?

1 bar = 14.7 psi. Take off 1 bar for atmospheric pressure and you can do the math

[J. Dub]

Originally Posted by Young_Man

Are the 3.5 and 4 bar both good for 40psi?

No. Only the 4 bar is good for 40psi. But I don't know of ANYONE running 40psi on the N54

[Young_Man]

Originally Posted by CanadianTSi

1 bar = 14.7 psi. Take off 1 bar for atmospheric pressure and you can do the math

Gotcha.

[Torgus]

Originally Posted by J. Dub

Well shit, I can't find any info except here. Thanks. I will get the 3.5bar instead of the 4 bar. I keep hearing the 4bar may or may not have bolt issues depending on chargepipe you have.

The 4 bar from BMS is cheaper than the 3.5 and comes with 2 o rings depending on your chargepipe. I have the cpe so the black o ring fit fine. Comes with the harness you need. But get whatever one you want.

[J. Dub]

Originally Posted by Torgus

The 4 bar from BMS is cheaper than the 3.5 and comes with 2 o rings depending on your chargepipe. I have the cpe so the black o ring fit fine. Comes with the harness you need. But get whatever one you want.

Thanks for the info Torgus