intake manifolds - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 02-22-2012, 10:43 AM Thread Starter
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intake manifolds

Did the intake manifolds change somewhere around 99? Did the diameter change? From what to what?

1996 F350 CC 4x4 auto 196k DIY intake
2002 Excursion 4x4 255k 160/80 66mm gtp38 intake and exhaust
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post #2 of 11 Old 02-22-2012, 11:09 AM
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Yes they changed middle 99 from I believe around 2" early 99 to 3" late 99

Jack
97 F250 Xlt, built E4od, D60 swap, Baby swamps, tunes by Dp
1.0 turbo housing, 203* t-stat, diy 6637, 4" exhaust
Diy intercooled, 6.0 fan, Diy 140v Idm, Isspro Ev gauges
On board air, E-fuel, 6" lift on 35's
322000 miles
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post #3 of 11 Old 02-22-2012, 11:14 AM
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^^^Yup

Allen
1999.5 F-350 7.3, six-speed

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post #4 of 11 Old 02-22-2012, 01:38 PM
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They also changed within the 2" versions (from 8-bolt to 10 bolt). I want to say mid-96 maybe? but I'd have to check. Cheers!

1997 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed

SOLD - 1994 F350 CC DRW 2WD PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, DPPI DP, Bilsteins, $12 AIC, Coolant Filter, Explorer Overhead Console, A-Pillar w/ISSPRO Black Ice, EV Boost, and EV Pyro, Modified Pedestal, Gutted EBPV.
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post #5 of 11 Old 02-22-2012, 03:43 PM
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94.5-97 was a "Y-pipe" - directly off the turbo into the plenums.
99-99.5 was a "Spider" - from the turbo, to CAC, back to the plenums.
99.5-03 was a "Spider" - same design as 99-99.5, but 3" diamater as opposed to 2".
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post #6 of 11 Old 02-22-2012, 04:14 PM Thread Starter
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Thanks guys, Is there reason everybody wants the early spider for the obs trucks?

1996 F350 CC 4x4 auto 196k DIY intake
2002 Excursion 4x4 255k 160/80 66mm gtp38 intake and exhaust
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post #7 of 11 Old 02-22-2012, 04:18 PM
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The early spider has the 2" outlets that match the OBS intake plenums. A 99.5+ spider would not match up.

Allen
1999.5 F-350 7.3, six-speed

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post #8 of 11 Old 02-22-2012, 04:27 PM Thread Starter
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unless you change the intake manifolds?

1996 F350 CC 4x4 auto 196k DIY intake
2002 Excursion 4x4 255k 160/80 66mm gtp38 intake and exhaust
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post #9 of 11 Old 02-22-2012, 04:35 PM
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You'd have to put some 3" SD intake plenums on, as well as do a fuel bowl delete in order to run a L99-03 spider.
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post #10 of 11 Old 02-22-2012, 04:45 PM
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The turbo flange is different as well (that's why the need for the early 99 spyder, it would mate up with our turbos). With the early 99 spyder you also need the boots that stepdown from 2-3/8" to 2" and a different turbo clamp. Cheers!

1997 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed

SOLD - 1994 F350 CC DRW 2WD PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, DPPI DP, Bilsteins, $12 AIC, Coolant Filter, Explorer Overhead Console, A-Pillar w/ISSPRO Black Ice, EV Boost, and EV Pyro, Modified Pedestal, Gutted EBPV.
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