I finally found the link to your photobucket album
It has been a little crazy around here lately. Nice pics and keep posting as I am very interested in how it ends up. Vlamica has hinted at organizing a west coast IDI rally. I may approach the subject in the spring.
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1994 F-350 7.3 IDI Turbo, crew cab, E4OD, LB, Dually Photos
ATS Turbo upgrades: 3" DP with 3" exhaust Magnaflow XL muffler: Pictures Here
1997 Jayco 323RKS fifth wheel w/2 slides, Air Lift 5000 bags
Pillar pod: Autometer C2 Series gauges: pyro,trans, boost, water, oil pressure
Hypermax Cowl induction, K&N air filter, flex-a-lite 26K trans cooler with fan,Tekonsha prodigy
Train Horns: Pictures here
I don't know how the stock compares to Bank's turbo, but it seems like you'd need to go larger than stock. Back to the comprssion issue... I'm not sure if compression is limiting boost on the IDI or the turbo is limiting boost. I think 12lbs. is about all I ever got out of the Bank's turbo
well one turbo is a 100mm holset im just thinking about the other one would stock work or should i go smaller? itd be a compound setup maybe a trip to the ford dealer to find out what the new psd runs is in order
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88 F-250 body,550 rear frame setup, 7.3 idi, back up camera, 20$ wallyworld fog lamps, class 5 bumper hitch welded to frame and gusseted, brush guard with front mount hitch and off road lights, headache rack, 33" mudders, ac power converter,factory buckets from quadcab, power windows and locks now, deezee runningboards (cab only),cobra 29 cb w/ 102" whip, high lift jack behind seat, toolbox for the junk, visor, running lights, 6600 lbs with all my junk
i plan to add propane kit, stake body bed, gn hitch,western style mirrors, holset turbo 100mm intake, and a lot more
new motto: use common sense its a great gift
and if that dont work overkill it
I finally found the link to your photobucket album
It has been a little crazy around here lately. Nice pics and keep posting as I am very interested in how it ends up. Vlamica has hinted at organizing a west coast IDI rally. I may approach the subject in the spring.
wow that link has been up a while
ya keep the input coming i need it to keep me working on this and the rest of life out of it
ya im trying to start a pa rally here me and strokersmoker7.3 are working on it hes local to me like 10 min away
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88 F-250 body,550 rear frame setup, 7.3 idi, back up camera, 20$ wallyworld fog lamps, class 5 bumper hitch welded to frame and gusseted, brush guard with front mount hitch and off road lights, headache rack, 33" mudders, ac power converter,factory buckets from quadcab, power windows and locks now, deezee runningboards (cab only),cobra 29 cb w/ 102" whip, high lift jack behind seat, toolbox for the junk, visor, running lights, 6600 lbs with all my junk
i plan to add propane kit, stake body bed, gn hitch,western style mirrors, holset turbo 100mm intake, and a lot more
new motto: use common sense its a great gift
and if that dont work overkill it
i know the boost gets high with a compound setup but i can try and just see what i get out of it
and if it breaks ill fix it
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88 F-250 body,550 rear frame setup, 7.3 idi, back up camera, 20$ wallyworld fog lamps, class 5 bumper hitch welded to frame and gusseted, brush guard with front mount hitch and off road lights, headache rack, 33" mudders, ac power converter,factory buckets from quadcab, power windows and locks now, deezee runningboards (cab only),cobra 29 cb w/ 102" whip, high lift jack behind seat, toolbox for the junk, visor, running lights, 6600 lbs with all my junk
i plan to add propane kit, stake body bed, gn hitch,western style mirrors, holset turbo 100mm intake, and a lot more
new motto: use common sense its a great gift
and if that dont work overkill it
Back to the comprssion issue... I'm not sure if compression is limiting boost on the IDI or the turbo is limiting boost. I think 12lbs. is about all I ever got out of the Bank's turbo
It's both the turbo and compression. Banks and ATS and Hypermax all have their turbo kits for these things set to run right around 12 psi. When you turbo an NA motor, you esentially double compression. So you take these motors the are making 21:1 compression the turbo them, your past 40:1. There for if you can lower the compression enough you can safely run 20+ psi. Just a a comparison, a 7.3 PSD is somewhere around 17:1 compression I believe. That's why stock those turbos put out around 20 PSI. If this is wrong, sombody correct me
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1989 F-250 4X4 C-6 7.3 IDI, 4.10 SRW, Cobra 148GTL, 4ft bed mounted whips, 12" Powerbass sub, 600W Powerbass amp, Sony Headunit, GPC override(thanks M.L.S.C), Factory Ford aluminum rims from OBS PSD
It's both the turbo and compression. Banks and ATS and Hypermax all have their turbo kits for these things set to run right around 12 psi. When you turbo an NA motor, you esentially double compression. So you take these motors the are making 21:1 compression the turbo them, your past 40:1. There for if you can lower the compression enough you can safely run 20+ psi. Just a a comparison, a 7.3 PSD is somewhere around 17:1 compression I believe. That's why stock those turbos put out around 20 PSI. If this is wrong, sombody correct me
I'm new to diesels but fairly versed in terms of boost, you are close to correct. In order to double an engines effective compression ratio you need add one atmosphere of boost (14.7 psi or 1 bar). So a 21:1 motor on 12 PSI would be about 38:1 effective compression while the 17:1 motor at 20 PSI is about 40:1 effective. A higher compression motor will be more driveable as it has more off boost power than a lower compression motor. However a lower compression motor can make more overall power due to larger cylinder volume. Cylinder volume and displacement are not one in the same, displacement is a measure of the swept volume, the volume in which the piston travels while cylinder volume is the swept area plus the compression or fixed area which is the combustion chamber. Simply put compression ratio is simplty a function of swept area volume versus combustion chamber volume. Since a lower compression engine has more total cylinder volume it it possible to pack more air/fuel in under a boost condition than a higher compression engine under the same boost. This is one reason among several that boosted engines tend to run lower static compression than their NA counterparts. Then there's dynamic compression but that's a whole nother discertation LOL
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1991 OBS E350 7.3 IDI cargo van running 50/50 - 90/10 WVO/solvent blends. Holley Red pump, Fram PH8A oil filter as prefilter, -6AN aluminum fuel lines from tank to engine. 3" Walker Dynomax muffler with turndown.
I'm new to diesels but fairly versed in terms of boost, you are close to correct. In order to double an engines effective compression ratio you need add one atmosphere of boost (14.7 psi or 1 bar). So a 21:1 motor on 12 PSI would be about 38:1 effective compression while the 17:1 motor at 20 PSI is about 40:1 effective. A higher compression motor will be more driveable as it has more off boost power than a lower compression motor. However a lower compression motor can make more overall power due to larger cylinder volume. Cylinder volume and displacement are not one in the same, displacement is a measure of the swept volume, the volume in which the piston travels while cylinder volume is the swept area plus the compression or fixed area which is the combustion chamber. Simply put compression ratio is simplty a function of swept area volume versus combustion chamber volume. Since a lower compression engine has more total cylinder volume it it possible to pack more air/fuel in under a boost condition than a higher compression engine under the same boost. This is one reason among several that boosted engines tend to run lower static compression than their NA counterparts. Then there's dynamic compression but that's a whole nother discertation LOL
Thanks for clearin it up. I knew it went somethin like that. Now I gots it. LOL
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1989 F-250 4X4 C-6 7.3 IDI, 4.10 SRW, Cobra 148GTL, 4ft bed mounted whips, 12" Powerbass sub, 600W Powerbass amp, Sony Headunit, GPC override(thanks M.L.S.C), Factory Ford aluminum rims from OBS PSD
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