Gauges for my 40.5

[BIGNASTY]

I know the kind of gauges but dont know how much boost on stock motor what gauge would be best 35 or 65 ?

 

[Bekim]

stock won't go over 32 on our motor
Mike
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[BHanna]

I have Isspro 30 psi gauge and it does peg under full throttle for a few seconds then comes down to about 25 (I guess when the wastegate opens?)

 

[WStephens]

I went with the higher boost gauge because I did not want to peg the guage.

 

[AH64ID]

35 is on the edge of adequate, I would go 60.

 

[Wingate]

I know the kind of gauges but dont know how much boost on stock motor what gauge would be best 35 or 65 ?

I run a Westach dual gauge on my 06... . The boost side ranges up to 35 psi which is perfect for a stock engine. If you dead stop floor it, you can hit approx. 34-35 psi for a split second, then it backs off to 32 psi.

If you have no plans on going beyond stock, I would stay with the 35 psi gauge, it will give you more accurate readings vs. a 65 psi gauge.