Modifying an IROC Fibreglass Bumper

[SilverWT]

Modifying an IROC Fibreglass Bumper, removing oil cooler "box" and shortening

I wanted to lose some weight by fitting fibreglass bumpers and I had a new narrow body IROC style bumper sitting in my garage. However, I wanted a different look and so I set about modifying it

Starting point


Marking up



No going back now


Making a mould of the centre section of a spare front valence.



The filler piece made from the mould



Bonding the filler piece in place



Filling the gaps and shaping thing up



Getting there

[SilverWT]

With some some primer filler



Trial fit.





Looks OK, but looks better if it did not extends forward so much

[SilverWT]

So...







Smoothing and shaping.

[SilverWT]

With some primer, again!





Also made a small splitter to finish it off. Made the plug in wood, took a mould and laid up the splitter in fibreglass cloth.



After running them in primer for a year, eventually painted.


And back on the car

[jager911]

Nice work, certainly is different, looks 964-ish with brake holes. So I suppose you don't have an oil cooler up front. Is that a 964 smile?

[James Brown]

sweet, the bumper, the aero mirrors, the color all work well together. Maybe some RUF wheels??

[otto in norway]

Nice work!
I'm thinking about shorting in mine too. Looks better when its not sticking out so much...

[Cory M]

Well done. Bumper looks great.

[jpnovak]

I think it would also look good without the brake duct holes. They are useless unless you have ducts connected directly.

Very nice! Did you install a rear bumper to match?

[Flat Six]

Nicely done! I'm curious about how you made the mould from your original valence. Would you mind offering a brief description or a couple of links to point me in the right direction?

Thanks much

[SilverWT]

Originally Posted by jager911

Nice work, certainly is different, looks 964-ish with brake holes. So I suppose you don't have an oil cooler up front. Is that a 964 smile?

Thanks for the positive commets..

Standard Carrera 3.2 oil cooler in the fender, a second one on the the side to follow.

Yes, 964 smile

[SilverWT]

Originally Posted by jpnovak

Did you install a rear bumper to match?

Yes, which also had to extensively modified to get it to fit just right.


The rear tail is also lightweight fibreglass as is the engine lid.

[SilverWT]

Originally Posted by Flat Six

Nicely done! I'm curious about how you made the mould from your original valence. Would you mind offering a brief description or a couple of links to point me in the right direction?

Thanks much

Stripped the old paint off (as it was not in good shape)

Waxed the metal

Painted on a layer of resin

Added several layers of fibreglass matting and resin

Prised it off when set

[saxen]

Im 5050 on the style- however it looks way better not hanging out so far- great work

[Reifle]

Very nice - good work!

[will hung]

I really like it. As a car-obsessed child of the 80's, I love the look of impact bumper 911's. But if there was one thing I could change, it would be the bumper bellows front and rear. I always liked that the IROC rear bumper was essentially a nice, smooth, 1-piece rear impact bumper. I just wish we had a similar option for the front; a smooth, 1-piece front impact bumper. This gets us pretty close. Thank you very much. Now I must learn how to play with Fiberglass.

[kach22i]

Wonderful, both front and rear.

[jpkelly3]

Way cool!

Gives me incentive to fix my front Bumper.

[JAR0023]

Wow! That turned out great. The whole car has a very clean look that really like.

-J

[Doug&Julie]

That's a great looking bumper...I've been looking for a solution like this for a long time. Why doesn't anybody do a mold like this as a complete bumper?!?

Would you say you're a skilled fiberglasser? I'm wondering if this would be "easy" for the average joe (or average Doug) or if I'd just F it up if I tried it...

Do you have a profile shot of the whole car?