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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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1997 F250, Tymar Intake, Tru-Cool 4590, HD Rebuilt E4OD, 3" DP to 4" exhaust, cat delete, Autometer Boost, Pyro, and Trans gauges, EBPV deleted, TS Performance 6 Position Chip, HPX Cross over, Mile Marker 449ss hubs, Intercooler, Stage 1 injectors, CCV mod.
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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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1997 F250, Tymar Intake, Tru-Cool 4590, HD Rebuilt E4OD, 3" DP to 4" exhaust, cat delete, Autometer Boost, Pyro, and Trans gauges, EBPV deleted, TS Performance 6 Position Chip, HPX Cross over, Mile Marker 449ss hubs, Intercooler, Stage 1 injectors, CCV mod.
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Old 08-07-2013, 06:33 PM
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gibby.1989 tombombadom tombombadom tombombadom
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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gibby.1989 tombombadom tombombadom tombombadom
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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1997 F250, Tymar Intake, Tru-Cool 4590, HD Rebuilt E4OD, 3" DP to 4" exhaust, cat delete, Autometer Boost, Pyro, and Trans gauges, EBPV deleted, TS Performance 6 Position Chip, HPX Cross over, Mile Marker 449ss hubs, Intercooler, Stage 1 injectors, CCV mod.
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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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-1996 F-250 7.3L, Auto, 4x4, 3.55 gears, TC lock-up, Amsoil EaAU4095, EBPV gutted, 3" DP, Straight Pipe, 203° T-stat, 1.0 A/R Turbine Housing, 280,000 Miles
-1997 F-250HD 7.3L XCLB 114,000 miles, 3" DP to 4", EBPV gutted, EaAU4095
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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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Rich-97 F350 SC Dually long bed 2wd, 5 speed, 410's, 145000 : 6637 intake filter, Tymar 3" down pipe, cat delete, IDM 140v, Digital pyro gauge, Rosewood Stage 1's, FPR shim, CCV mod. Valair 400 HP Organic Clutch, GPR manual momentary switch, Superchip 1700 tuner/programer.
To do would be install 6.0 intercooler (need pipes and boots)
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Old 08-08-2013, 01:36 PM
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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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-1996 F-250 7.3L, Auto, 4x4, 3.55 gears, TC lock-up, Amsoil EaAU4095, EBPV gutted, 3" DP, Straight Pipe, 203° T-stat, 1.0 A/R Turbine Housing, 280,000 Miles
-1997 F-250HD 7.3L XCLB 114,000 miles, 3" DP to 4", EBPV gutted, EaAU4095
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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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Rich-97 F350 SC Dually long bed 2wd, 5 speed, 410's, 145000 : 6637 intake filter, Tymar 3" down pipe, cat delete, IDM 140v, Digital pyro gauge, Rosewood Stage 1's, FPR shim, CCV mod. Valair 400 HP Organic Clutch, GPR manual momentary switch, Superchip 1700 tuner/programer.
To do would be install 6.0 intercooler (need pipes and boots)
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Old 08-09-2013, 03:16 PM
 
 
 
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