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Old 07-19-2009, 12:21 PM   #1
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Default Recalibrate stock boost gauge question

When I had my 03 cobra, a guy came up with a boost gauge overlay that was applied to the boost gauge and then you reset the needle. Took the stock boost gauge of a max of 10lbs and made it look stock but the max was 15lbs. Has anything ever been done like that for the SC bonnies. I am in the process of modding but I don't want to have 2 boost gauges, one in the dash the max'* at 10 and then one on the "A" pillar.


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Old 07-20-2009, 09:16 PM   #2
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Guess no one has heard of anything like this for our cars.

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Old 07-20-2009, 09:52 PM   #3
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I don't recall anyone doing something like that. Personally, I don't even watch the gauge.
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Old 07-20-2009, 10:39 PM   #4
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Quote:
Originally Posted by Danthurs View Post
I don't recall anyone doing something like that. Personally, I don't even watch the gauge.
X2

The boost gauges accuracy has not been challenged that I can remember. But, if you want accuracy on any gauge a mechanical one is the way to go.
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Old 07-20-2009, 11:33 PM   #5
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The Bonneville Boost gauge is accurate....plus you dont want over 10psi on a 3800 anyway....if you have that much you are stacking Boost, and not using it.
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Old 07-20-2009, 11:55 PM   #6
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The Bonneville Boost gauge is accurate....plus you dont want over 10psi on a 3800 anyway....if you have that much you are stacking Boost, and not using it.
With a stock pulley my car makes about 8lbs WOT. If I go to a 3.4 pulley, it is going to make about 12 which is more than the stock gauge will read.

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Old 07-21-2009, 11:24 AM   #7
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not true or that means with my 3.2 pulley that im running on my car means that i make 16 psi???. I only see about 9-10 at the top of the gear at WOT

with a 3.4 your lucky to see it in the orange let alone max out the gauge. I have been in more 00+ 3.4 setups than most people on this club, and I have yet to see the gauge maxed out
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Old 07-21-2009, 11:32 AM   #8
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The only time I saw my stock gauge hit 10 psi with a 3.4" is nearing 100 mph when the RPMs are at the highest. I'm running a 3.1" and hitting just under 13 psi. Stock should give you about 7 psi. A 3.4" will give you perhaps 9 psi. Each pulley drop will give you about a pound on average. Porting will drop the boost. Keep in mind, the higher the boost, the harder the supercharger is working. It'* about air moving threw, not air stacking up.
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Old 07-21-2009, 11:52 AM   #9
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I think it'* really important to emphasize that higher boost = more heat, more heat = KR opportunities. The SC is all about pumping air into the motor at volume and not about pressure. The pressure increase comes from stacking the volume when the volume cannot be run through the motor efficiently.
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Old 07-21-2009, 02:07 PM   #10
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Quote:
Originally Posted by Danthurs View Post
I don't recall anyone doing something like that. Personally, I don't even watch the gauge.
We have a boost gauge?LOLOL....dnt look at it either.
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