Ultimate RUF Conversion Thread - Page 15

Fassi · 04-02-2003, 07:09 PM

Has anyone ever thought to use the bumper "smile" with the fiberglass cap to mitigate the shelf effect?

beamonk · 04-03-2003, 03:45 AM

Souk, we want to see the lift!

MotoSook · 04-03-2003, 04:01 AM

John,

Not my pictures, but you'll see what it looks like in this thread. I still need to finish assembling it. I think installing the Ruf pieces will go much easier witht he lift

Just got my lift

tholyoak · 04-03-2003, 06:07 AM

Could someone (Wavey?) post some pictures of the back of the front bumper cap. I really would like to see what it looks like prior to ordering, particularly in the area of the raised inner lip that would (hopefully) be used to mount the Ruf rubber lip

Alternatively they could email pics to me directly at holyoak@brandeis.edu

Thanks
Todd

KTL · 06:20 AM

For the front lip spoiler thingamajigger, I got some black PVC conveyor belting from McMaster-Carr.

www.mcmaster.com

And type in the number 6001K808 in the find/search field.

Then click on Catalog page.

I initially bought the Black PVC 4" wide, 0.17" thick belt. It seems slightly thinner than i'd like. I think i'm going to get another length of the 0.21" belting, which is closer the the thickness of my existing OEM Porsche rubber front spoiler.

I'll post a picture of the how the belting looks when I get home. The outer surface is kinda shiny, but looks okay. Price is not bad at all. $1.27/ft.

Wavey · 04-03-2003, 12:20 PM

Quote:

Originally posted by tholyoak
Could someone (Wavey?) post some pictures of the back of the front bumper cap. I really would like to see what it looks like prior to ordering, particularly in the area of the raised inner lip that would (hopefully) be used to mount the Ruf rubber lip

Alternatively they could email pics to me directly at holyoak@brandeis.edu

Thanks
Todd

Swamped right now, will try tomorrow.

pbs911 · pbs911's Garage

Quote:

Has anyone ever thought to use the bumper "smile" with the fiberglass cap to mitigate the shelf effect?

When you get the front off you will realize the smile will not work.

Also, be sure to secure the fiberglass piece about every 3-4 inches. Since the edges of those pieces are not rolled the weight of the unit will pull it down. This will cause waves in the fiberglass at each mounting point.

I used the industrial rubber strips from McMaster-Carr. I used the 2" wide strip attached to the lip on the bottom of the front bumper cap. This left less than 4" clearance from the ground when installed. The gardening stuff won't work. It is too brittle and i doubt it will sustain air flow at over 100 mph.

I'll try and take some pics this weekend to show what I did.

MotoSook · 04-03-2003, 02:17 PM

I don't have my parts yet, but I think it would be a good idea to put an aluminum backing strip under or behind the fiberglass (sandwich the glass). This will reinforce the bumper to fender attachment, and for the rubber lip, it will help to prevent cracking of the glass if you run over something.

Wavey · 04-04-2003, 01:29 PM

Hey Todd,

Here's the only pic I've taken so far where you can see the bottom edge. There is only the horizontal surface that wraps under from the front - there's no vertical lip at the back edge, up or down, where you'd attach another rubber lip. In a "section view", the contour just comes down from the front, curves at the front bottom, and goes straight back toward the rear. There's a tiny bit of flair toward the ground about halfway back, but it's essentially horizontal. No lip. However I would imagine Brad could make you one with a lip, since he's pretty much making these to order - you might ask him.

Quote:

Originally posted by tholyoak
Could someone (Wavey?) post some pictures of the back of the front bumper cap. I really woumd like to see what it looks like prior to ordering, particularly in the area of the raised inner lip that would (hopefully) be used to mount the Ruf rubber lip

Alternatively they could email pics to me directly at holyoak@brandeis.edu

Thanks
Todd

KTL · 01:39 PM

Here's those pictures of the conveyor belting if anybody cares.

It's sturdy but flexible. I still think i'll try the .21 thickness or get some of the other stuff mentioned that McMaster-Carr carries. That'd be great if Paul could show us a picture of his version of the lip.

IMONBOOST · IMONBOOST's Garage

Has anyone seen the pictures from the latest exellence mag? You can see there is a rubber strip between the bumper cap and the body (fenders). Does anyone know where to get such a rubber strip? I have searched a couple of places and the closest I have seen was on JC Whitney.

pbs911 · pbs911's Garage

Here are a couple pics of the front lip. One from the rear and one from the front.

Wavey · 04-04-2003, 03:00 PM

Quote:

Originally posted by IMONBOOST
Has anyone seen the pictures from the latest exellence mag? You can see there is a rubber strip between the bumper cap and the body (fenders). Does anyone know where to get such a rubber strip? I have searched a couple of places and the closest I have seen was on JC Whitney.

I think if you look back in this thread, someone mentioned that it's the same piece as where the front fenders meet the cowl. If it's not here, I read that somewhere recently.

Quote:

Originally posted by pbs911
[B]Here are a couple pics of the front lip. One from the rear and one from the front.

The one I purchased from BW Motorsports does NOT have this small lip that the rubber dam attaches to on Paul's car.

pbs911 · pbs911's Garage

mine is a ma shaw piece.

Bill Verburg · Bill Verburg's Garage

Quote:

Has anyone seen the pictures from the latest exellence mag? You can see there is a rubber strip between the bumper cap and the body (fenders). Does anyone know where to get such a rubber strip? I have searched a couple of places and the closest I have seen was on JC Whitney.

I published all of that info back on page 1 or 2.

My lower fiberglass lip(BW) is turned up on the back side. Al. strips were used on both sides to sandwhich the lip and f/g.

here is a pic of the back side

and of the frnt

ipapilot · 04:27 PM

Paul,
On your front bumper you have two inlets on each side in the fog light opening. What are you using those for and how was it constructed? I have considered something similar so I can run a fog light and a brake duct on each side. Thanks for the help!
Brian

BTW, Bill, the parts coming from BW now do not have a turned up lip on the back side to sandwich the lip on to.

rdane · rdane's Garage

The Shaw pieces do have a lip but it is turned down for the air damn attachment. It will need reinforcing though as others have done, cuz it isn't much. I weighted all the parts that came off today but haven't had a chance to accurately weight what is going back on. Here is what came off. Front and rear bumpers with shocks weighted in at 78#.

Here is what is going on: Two small shocks going back on with the front nerf bar which is steel. That adds up to 14#. Back heat sink will be aluminum and around 5#. Shaws two pieces I would think hit less than 20# together. Makes the change about 38/40# lighter, may be a bit more. But I'll get chance to be more specific on Monday. Anyone else weighted the parts as they go?

baratta930 · 04-04-2003, 04:48 PM

Can someone who has changed to these ruf sytle bumpes do me a favor and measure the distance from the ground to the bottom of the front bumper cap (i.e. front clearance) and their front fender well height.

I'm thinking of changing bumpers on my 930 but am worried about not being able to get out of my driveway

Right with my rubber lower lip on my standard bumpers, it just barely touches when I exit my driveway ... So I want to see what would happen with the RUF style bumpers ...

Thanks,

Berardino

Bill Verburg · Bill Verburg's Garage

Quote:

Originally posted by ipapilot
BTW, Bill, the parts coming from BW now do not have a turned up lip on the back side to sandwich the lip on to.

??Odd?? I just looked at your pics? If you want a lip like I used then just lay up a ~.5" vertical piece at the back of the f/g. You could even embed the al. backing piece in the f/g. there is almost never a flat straight edge to any f/g as that woll be a weak spot. They always use shapes to get max. strength.

pbs911 · pbs911's Garage

As you guys can tell, Bill's RUF rubber spoiler is much nicer than my DIY job. But for $20 it gets the job done.

ipapilot, I made the ducting you commented on out of fiberglass. On the passanger side there are two inlets, one for the oil cooler and one for the brake duct. On the drivers side it is just the brake duct. I do not hook up the brake ducts for street driving.