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By Sazerac
#101864
Hello Everyone

After the recent number of fuel dampers that have failed, left and right, it seems, a thread about dampers could be useful. Feel free to post anything about fuel dampers here. OEM, aftermarket alternatives, etc.

Right now, I happen to be in the middle of an engine refresh on my 90 GT with Dave C. This will involve lots of replating, etc., and given the fact that my current dampers are original, I bought a new damper for the front in anticipation of a failure and to keep the cosmetics of the engine bay coherent.

Well, here's what I got:
Image

Production date 01.2021, and now, no part number stampings on the housings (stickers instead) and poor plating. (I'll be replating it anyway, but for others that could be irksome.) All this at Porsche Classic prices... At least still made in Germany... The lack of part number stampings remind me of my questionable cylinder head bolts procured also from Porsche.

My 91 GT had the back damper fail rather suddenly making the car hardly startable last year and the replacement was still a real Bosch part with stampings and good plating, but made in 2016. Completely different part appearance. Are the new ones still made by Bosch?
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By ROG100
#101873
Bosch stopped making the dampers and regulators. Porsche superseded most of the numbers and they are now made by an unknown company.
I suspect the plating is not gold like in the past as it is a process that is not used anymore on a mass production basis.
Below is a list of the later 87 to 95 dampers and regulators that I sell. Including original Bosch numbers and the latest supersession.
By far the biggest seller are the NLA products Billet regulator & dampers. Especially the FPR which is used on the 964 Carrera (89 to 94) - We can't make these fast enough.

Fuel Pressure Regulator 88 to 95 - was 928 110 198 04 – Bosch 0280 160 297 928 110 198 25
Also used on the 964 89 to 94 928 110 198 25
PR299 - 3.5bar - Aftermarket 928 110 198 04A
Fuel Pressure Regulator 88 to 95 - Aftermarket – NLA Products Billet 928 110 198 25AM
Front Fuel Pressure Damper 87 to 95 - was 928 110 202 01 – Bosch 0280 161 034 928 110 202 22
Front Fuel Pressure Damper 87 to 95 – Aftermarket – NLA Products Billet 928 110 202 22AM
Rear Fuel Pressure Damper 87 to 95 – Bosch 0280 161 035 930 110 602 01
Rear Fuel Pressure Damper 87 to 95 – Aftermarket – NLA Products Billet 930 110 602 01AM
Fuel Pressure Regulator 87 – Bosch 0280 160 262 928 110 198 02
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By checkmate1996
#103372
I'm on pins and needles waiting for the OB regulators to come to fruition!! :rockon: :byewave: :bowdown: :biggrin:
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By worf
#103391
ROG100 wrote: Thu Sep 02, 2021 6:37 pm I suspect the plating is not gold like in the past as it is a process that is not used anymore on a mass production basis.
The color of the new not-Bosch bits is similar-ish to that of the originals. The supplier at least made a half-hearted attempt to chromate some super-thin zinc electroplating. If installed it will look - for a year or three - correct.

They were, of course, never “gold” in material terms and aren’t now. Platers call it “yellow” so as to disambiguate from actual gold plating.

At least it wasn’t totally unplated and rusted in the bag like some Porsche-bagged parts I’ve received in the past.
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By milrad
#103574
I’ve just been down this road. I bought an OEM rear damper about a year ago, and had a front one on back order since then that came in recently. A full year. I also needed a FPR, and bought one of the new aluminum aftermarket ones from Roger.

In an effort to keep originality, I spent stupid money, waited forever, and got one OEM damper with a big scratch in the mating surface that leaked upon reassembly. Not pleased. If I did it again, I’d just buy the all aluminum ones from Roger. Even if aluminum on steel isn’t the best, you can buy 2 of them for every shitty OEM damper. Plus they look cool.
checkmate1996 liked this

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Panorama September 2021

great representation ~!