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Re: Batwing hardware kit

Posted: Tue Apr 28, 2026 12:10 pm
by AudiSport
Haven’t got there yet 😬

Re: Batwing hardware kit

Posted: Wed Apr 29, 2026 1:51 am
by chrischrischris
Later versions of the batwing were improved with the addition of three finger-like projections integrated into the rear edge which attach to the engine tray, replacing that assortment of rivets, screws, speed nuts, and brackets.

Rather than use the OEM parts, a better solution would use a piece of aluminum or a 3D print to update the early batwing to the newer (better) design.

Re: Batwing hardware kit

Posted: Wed Apr 29, 2026 4:26 pm
by Tom
chrischrischris wrote: Wed Apr 29, 2026 1:51 am Later versions of the batwing were improved with the addition of three finger-like projections integrated into the rear edge which attach to the engine tray, replacing that assortment of rivets, screws, speed nuts, and brackets.

Rather than use the OEM parts, a better solution would use a piece of aluminum or a 3D print to update the early batwing to the newer (better) design.
Have a picture of the new design?

Re: Batwing hardware kit

Posted: Wed Apr 29, 2026 5:58 pm
by facboy
My vague recollection on my 89 is that instead of the brackets riveted to the plastic you have basically the equivalent plastic brackets moulded into the batwing already, and the speed nuts are on the plastic brackets instead.

Re: Batwing hardware kit

Posted: Wed Apr 29, 2026 9:35 pm
by whalenlg
For what it’s worth, I bought these on Amazon to put my Batwing on:

Maier USA Shoulder Washers 8MM -... https://www.amazon.com/dp/B074MJ2HKQ?re ... b_ap_share

They were much cheaper than the own ones. I also just found similar metric speed nuts at my local ace and a mixture of 6mm machine screws (Philips) and a couple of 6mm hex bolts.

Re: Batwing hardware kit

Posted: Wed Apr 29, 2026 11:01 pm
by facboy
Yep, again from memory none of it is precision fit at all.

Re: Batwing hardware kit

Posted: Thu Apr 30, 2026 1:39 am
by chrischrischris
Tom wrote: Wed Apr 29, 2026 4:26 pm
chrischrischris wrote: Wed Apr 29, 2026 1:51 am Later versions of the batwing were improved with the addition of three finger-like projections integrated into the rear edge which attach to the engine tray, replacing that assortment of rivets, screws, speed nuts, and brackets.

Rather than use the OEM parts, a better solution would use a piece of aluminum or a 3D print to update the early batwing to the newer (better) design.
Have a picture of the new design?

Re: Batwing hardware kit

Posted: Thu Apr 30, 2026 1:42 am
by chrischrischris
whalenlg wrote: Wed Apr 29, 2026 9:35 pm For what it’s worth, I bought these on Amazon to put my Batwing on:

Maier USA Shoulder Washers 8MM -... https://www.amazon.com/dp/B074MJ2HKQ?re ... b_ap_share

They were much cheaper than the own ones. I also just found similar metric speed nuts at my local ace and a mixture of 6mm machine screws (Philips) and a couple of 6mm hex bolts.
Shoulder washers are also used to fasten the lower sill black plastic trim. The Porsche pieces are very overpriced. Plastic would be a good material to use here as they will not corrode like the metal ones.

Re: Batwing hardware kit

Posted: Thu Apr 30, 2026 3:23 am
by whalenlg
chrischrischris wrote: Thu Apr 30, 2026 1:42 am
whalenlg wrote: Wed Apr 29, 2026 9:35 pm For what it’s worth, I bought these on Amazon to put my Batwing on:

Maier USA Shoulder Washers 8MM -... https://www.amazon.com/dp/B074MJ2HKQ?re ... b_ap_share

They were much cheaper than the own ones. I also just found similar metric speed nuts at my local ace and a mixture of 6mm machine screws (Philips) and a couple of 6mm hex bolts.
Shoulder washers are also used to fasten the lower sill black plastic trim. The Porsche pieces are very overpriced. Plastic would be a good material to use here as they will not corrode like the metal ones.
Fyi - those ones are smaller - 6mm instead of 8mm. Metal ones are also on Amazon.