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Join Date: Sep 2002
Location: Tulsa, OK
Posts: 141
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Identifying Intake Manifolds
I purchased a set of 40 IDA 3C/3C1 Webers back in 2018 for a 914-6 2.4 project. Can anyone tell ne about the intakes? The only markings are F.R.P. cast into them.
Top side has 40mm ports. Bottom side are 35mm. thanks |
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11-11-2025, 11:20 AM
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Location: Tulsa, OK
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Sorry I posted twice. I was trying to add a couple photos.
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11-11-2025, 11:29 AM
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PCA Member since 1988
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Just go back and delete the other two threads.
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners. Cars are for driving. If you want art, get something you can hang on the wall! |
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11-11-2025, 01:13 PM
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Location: Tulsa, OK
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I have not had any success with deleting the duplicate posts. I've attached a pic of the intake and carb.
 
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11-11-2025, 05:11 PM
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Location: Tulsa, OK
Posts: 141
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...and the cast marking is R.E.P. - not F.R.P.
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11-11-2025, 05:12 PM
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Join Date: May 2021
Location: Nash County NC
Posts: 95
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Did a quick Google search. Apparently REP may be pre PMO.
https://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/1065905-r-e-p-pmo-46mm-intake-manifolds.html
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76 911S Signature Edition w/ 3.2 |
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11-11-2025, 05:40 PM
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Location: Tulsa, OK
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OK, thanks. I couldn't find anything when I searched.
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11-11-2025, 05:46 PM
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Try not, Do or Do not
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I'm not certain about the manifolds but the velocity stacks came from TMW.
Now sold under the Borla banner. https://www.borlainduction.com/product-category/component/fuel-injection-component/air-horn/
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Henry Schmidt SUPERTEC PERFORMANCE Ph: 760-728-3062 Email: supertec1@earthlink.net |
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11-11-2025, 06:14 PM
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It's a 914 ...
Join Date: Jan 2008
Location: Ossining, NY
Posts: 4,774
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REP is PMO. Can't recall what REP stands for though.
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11-11-2025, 09:08 PM
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Location: Tooele , Ut.
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Richard E. Parr
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11-11-2025, 11:22 PM
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Porsche
Retor 911
Scarab
Riley
