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FMB - 27 Feb 2005 17:45 GMT

I'm looking at the Westach High Output Combo Boost/EGT-50PSI setup (Dual
Gauge) and I see I have a choice of 1/8" and 1/4" NPT. What are the
advantages/disadvantages of these two sizes? It would be for my '03 2500
HO.

I'm also looking for a fuel pressure gauge. What range should this be in?
Speaking of ranges, the Boost gauge goes to 50psi. I haven't done any mods
as yet, might in the future, is this the right range for the Boost gauge?

Would anybody recommend a third gauge if I didn't have an automatic
transmission? I have the 6sp manual. If so, what and why?

Lastly, I'm going to mount these in a windshield pod
http://www.genosgarage.com/CoastalData/showdetl.cfm?&DID=30&Product_ID=1638&CATID=1
or http://tinyurl.com/4tx4e for short, at Genos. Anybody have any
experiences with this particular pod?

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FMB
(only one B in FMB)

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Mike Simmons - 27 Feb 2005 22:38 GMT

> I'm looking at the Westach High Output Combo Boost/EGT-50PSI setup (Dual
> Gauge) and I see I have a choice of 1/8" and 1/4" NPT. What are the
> advantages/disadvantages of these two sizes? It would be for my '03 2500
> HO.

The 1/8" and 1/4" NPT sizes refer to the hole and threads that need to be
tapped in the exhaust manifold for the pyro thermocouple. There is no
advantage to either size, whatever is easier for you to install. I would
recommend using the 1/8" NPT however. Just in case something goes haywire
with the drilling and tapping of your exhaust manifold using the 1/8" NPT,
you can always fall back on the 1/4" NPT. If you are buying your gauges
from Geno's, they incluse a "boost bolt" that replaces one of the intake
manifold bolts to allow access to a pressure input. The 35psi gauge is
plenty for a standard HO engine however, plan for the future!

Mike

> I'm also looking for a fuel pressure gauge. What range should this be in?
> Speaking of ranges, the Boost gauge goes to 50psi. I haven't done any
[quoted text clipped - 8 lines]
> or http://tinyurl.com/4tx4e for short, at Genos. Anybody have any
> experiences with this particular pod?

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Tom Lawrence - 28 Feb 2005 00:08 GMT

> I'm also looking for a fuel pressure gauge. What range should this be in?

20 psi is more than enough, even for an aftermarket fuel system (my FASS
puts out 17psi at idle). Most FP gauges are 30 or 35psi units. This will
be fine.

> Speaking of ranges, the Boost gauge goes to 50psi. I haven't done any
> mods as yet, might in the future, is this the right range for the Boost
> gauge?

50psi is fine unless you're running twin turbos. Aside from that, you'll
never exceed 40-45psi, even in a modified application.

> Would anybody recommend a third gauge if I didn't have an automatic
> transmission? I have the 6sp manual. If so, what and why?

Not really. Some people like to install a real oil pressure gauge, because
the factory one is next to useless.

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