Interesting. So what's wrong? What do I do to fix it?

I will say that my car has never had the 'rush' feeling of getting on the tubo as it winds up -- but I always thought it was due to the trap cat restricting the breathing. Would be happy to be wrong! :D

I've never played with a TrapOx equipped engine so that may be the case. That Trap is a pretty significant restriction and allows the exhaust to expand before the turbo.

It's really neat how you mounted that gauge! I wish my SD had round vents :(

I'm going to make a little pod that I set right next to the hump for the instrument cluster, I have to repair some cracks in my dash anyway so I thought I'd integrate a pod in there... Volts, Boost and EGT whenever I get the $$ for all that..

Thanks for all the replies everyone. I will adjust it today so the waste gate "opens" at around 12psi or so. Thanks again for all of the info. If any one has any questions about an install, please feel free to pm me!

I've wondered about finding a welder to make me a test pipe so I can remove the trap ox and make some comparison tests. That would be easier and quicker than finding a federal version and swapping the parts. You have to replace everything all the way from the air cleaner to the exhaust pipe, or so I've read here. :D

I think you're fine Jeremy, I get the same readings as you with my Fed engine. I can get it up to 11 psi or so when I have it floored, but it never gets that high otherwise.

Thanks, so do I. :D :D :D

How about this VDO with 15psi range? A little more inkeeping with the MB styling?
http://www.egauges.com/vdo_mult.asp?Type=Turbo_Boost&Series=Vision&Units=E

RT

I suggest ISSPRO gauges. The have 10x better lighting and night visibility than VDO.

http://www.egauges.com/vdo_ind.asp?Type=Manifold_Pressure&Series=EVA&PN=R5611

He has more of what I bought. I liked the silicone filled gage.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=320045233254&ssPageName=MERC_VIC_RSCC_Pr4_PcY_BIN_Stores_IT&refitem=3200 40364923&itemcount=4&refwidgetloc=closed_view_item&usedrule1=StoreCatToStoreCat&usedrule2=CrossSell_ LogicX&refwidgettype=cross_promot_widget
-Jim

1-1/2" is pretty small. Standard gauges are 2-1/16"

I'm using a VDO boost and pyrometer. They match the stock gauges well in terms of looks and lighting. :P Seriously though I am happy with them. I think it would be distracting to have ultra bright gauges.

That is what I have. Scroll through the pics posted after the Sacramento GTG and you will see my 3-gauge panel.

Mine too, it was a joke. lol

I'm about 13psi now. MUCH better down the freeway.

Did you adjust max load at all? These engines should have an excess of air, so I am surprised there was an effect from increasing the boost.