Should my boost be higher than 20psi? - Ford Truck Enthusiasts Forums



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Should my boost be higher than 20psi?

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Old 08-07-2013, 03:38 PM
Groundpounder0331 Groundpounder0331 is offline
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Should my boost be higher than 20psi?

Note the mods in my sig line below. The most boost I can generate is 20psi, and that's at the top of the power band, screaming up a mountain pass with a 9K trailer, driving with EGT's at 1200. Is that the max I can get without further mods, or should I be creating more? If so, should I be looking for a leak somewhere?
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Old 08-07-2013, 03:47 PM
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That's it. If you have a Cali model you should be around 28
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Old 08-07-2013, 03:48 PM
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With a completetly sealed system I could get 23psi
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Old 08-07-2013, 04:10 PM
Groundpounder0331 Groundpounder0331 is offline
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Ok thanks. I saw others were getting higher boost with relatively the same mods. I do think it's time for Stage 1's and an interooler. Maybe a new HPOP... Let the fun begin.
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Old 08-07-2013, 06:33 PM
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Highest I ever saw was 23 and I thought my truck was stock. However I just found out I have an SD compressor wheel in my turbo, which makes me wonder what else has been done to it. also running an edge programmer in the lowest steering.
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Old 08-07-2013, 08:16 PM
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I get 20 and not a tick more. no exh leaks and what seems to be a well running psd.and yea thats just flogging molly and up top in the revs
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Old 08-07-2013, 08:38 PM
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Just curious, could wherever the gauge is hooked up effect readings for good or worse? Or is it pretty much ok wherever.
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Old 08-07-2013, 08:39 PM
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What position is your chip in?
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Old 08-08-2013, 09:42 AM
Groundpounder0331 Groundpounder0331 is offline
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I'm not the expert here, but when I hooked up my boost guage, I just found the most convenient location and did it. This was on the passenger side of the motor, and it worked fine. I don't believe location makes a difference.
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Old 08-08-2013, 12:44 PM
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It will make a difference if you have a intercooler, otherwise just put it where ever.

I could hit 23 psi with similar mods except no chip.
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Old 08-08-2013, 01:24 PM
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I am just wondering how ya all are testing for boost, and is everyone posting here testing the same way? I don't have a boost gauge and am just using a pressure gauge. If I am just romping on it going on the freeway in forth gear it jumps up to 30 or a little more and then about the same when I go to 5th. this is with no load and no inter cooler. When I am towing I don't think it gets that high though.
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Old 08-08-2013, 01:36 PM
WADE MMT/PSD WADE MMT/PSD is offline
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I have the edge programmer, oil return lines and a little more than stock fuel pressure. I hit 25 psi of boost, but an too scared of egt numbers to hit wot yet. If you buy more than 30, you better have some serious mods done.
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Old 08-09-2013, 12:56 PM
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I had a temporary boost guage installed for a week or so. I tapped into the Map sensor hose.

You need springs and push rods if you are hitting 30 psi boost.
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Old 08-09-2013, 03:16 PM
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This is a link to a thread I did a little over a year ago, maybe the gauge is faulty I'll have to check it out. I didn't bother getting a real boost gauge when I saw that I had that kind of boost pressure.
http://www.ford-trucks.com/forums/11...ost-video.html
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