Who here is running fiberglass bumpers? How did yours? I don't want to through bolt them. I want a nice clean look. I would also like to remove the bumper shocks. Anyone have any details. Pic would be great too. Looking for some ideas. Thanks
Fibergalss bumpers
- Thread starter windsoreight
- Start date
I got my fiberglass bumpers from MAS. I heh...hem burnt the urathane off the original bumpers in my fire pit. The body shop then sand blasted the bumper supports and used some form of adhesive to bond the fiberglass bumpers on. I really liked the way they turned out. Very smooth without any bumper bolts. The adhesive has been tested at sustained tripple digit speeds hehe! 
If you need more info I can repost tonight at home with MAS' phone number and some photos if you like?????
If you need more info I can repost tonight at home with MAS' phone number and some photos if you like?????I have MAS bumpers but I don't like the quality of the front one... the bumper is warped on top. Overcoming this is very hard to make it look good. Northern J's idea of bonding it to the original urethane supports is a good idea. I ordered another front bumper from MAS thinking that maybe I got a bad one but it looked the exact same way. If anybody knows of a better reproduction for the front, I'd really be thankful.
d
d
I have the MAS bumpers also. It looks like they were molded from old cracked urethane originals, there are surface cracks molded right in. The quality wasn't top notch, but the price was right. I used stainless steel carriage bolts through to aluminum L-brackets. It is a through bolt, but I think it looks fairly clean. I tossed the original steel part of the bumpers - them suckas were heavy!
These bumpers came with the car and are painted to match. I don't know who made them but the are awesome quality. I want to elminate the bumper core and the bumper shocks. I would like to save the weight.
welder4956
20+ Year Stangneter 
windsoreight said:
If you're a hard-core racer and do very little or no street driving, you definitely should get rid of the reinforcing steel behind the bumper. But if you're car is street-driven most of the time and/or a daily driver, you may want to keep that reinforcement to protect your investment. I let my son drive mine one day with me in the passenger seat and the floor mat got bunched up around the pedal so that the harder he pushed the brake, the harder it also mashed the gas pedal. He hit the back of a Toyota Camry not once, but twice. Scared the poor lady driving it to death. He would have hit her a third time if I hadn't jerked up the emergency brake. Not a scratch on her car, my bumper was only slightly bent upwards. You just can't predict the unexpected, like someone stopping too quick in front of you (should have tossed that stupid floor mat though). If that were a fiberglass front bumper with no reinforcement, my bumper, grill, valence, spoiler and front fascia would have all been trashed. I would rather have the extra weight of the reinforcement to protect my car.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2455347298&category=40017
Just in case your lookin for one.
Dan
Just in case your lookin for one.
Dan
My goal is to make a mid 9 second car. So weight is an issue. The car will mainly be raced and just taken to shows. A 9 second car is barley streetable. But after some thought I am going to keep the bumper rebars. It will make it easier to mount. Now what product would I use to adhere the fiberglass bumper to the metal reinforcment?
>Now what product would I use to adhere the fiberglass bumper to the metal reinforcment?
I'd be interested to know that question myself. Also are there any differences
between the vendors of these fiberglass bumpers? Is one better than the other?
I know MAS bumpers are the cheapest I've found.
d
I'd be interested to know that question myself. Also are there any differences
between the vendors of these fiberglass bumpers? Is one better than the other?
I know MAS bumpers are the cheapest I've found.
d
I welded bolts to steel strap and fiberglassed them into the "groove" the is on the inside of ther bumper. They then bolt to the factory core.
It's not as bad as it looks. One other thing I did as I am using these on the street. The ends and VERY flexible. What I did was to fill the end "pockets" the "GREAT STUFF" spray insulation, cut it flat to the shell, then covered with glass mat and resin. It made the ends much more solid and less prone to vibrate in with the wind/engine. Contact me if you have any questions I can help with.
Tim
It's not as bad as it looks. One other thing I did as I am using these on the street. The ends and VERY flexible. What I did was to fill the end "pockets" the "GREAT STUFF" spray insulation, cut it flat to the shell, then covered with glass mat and resin. It made the ends much more solid and less prone to vibrate in with the wind/engine. Contact me if you have any questions I can help with.
Tim
Windsoreight:
I called my body shop and they admitted to using a product called Vette-bond! It is the same stuff they glue Corvette body panels to the steel inner structure with. Makes sense, just feels dirty using Chevy glue on my Mustang! I will post some pic's tonight (I am heh....hem at work right now). I was going to do the same thing as cobraii351 (looks very well done), but the dudes at the body shop insured me the glue would work. (I had posted a similar thread a year back). The Vette-bond worked really well for me.
I called my body shop and they admitted to using a product called Vette-bond! It is the same stuff they glue Corvette body panels to the steel inner structure with. Makes sense, just feels dirty using Chevy glue on my Mustang! I will post some pic's tonight (I am heh....hem at work right now). I was going to do the same thing as cobraii351 (looks very well done), but the dudes at the body shop insured me the glue would work. (I had posted a similar thread a year back). The Vette-bond worked really well for me.
MUSTANG J II
Founding Member
MUSTANG J II
Founding Member
P.S
Before anybody asks the froint spoiler in the picture is from Mustangs Unlimited. (factory style) [They have a longer then stock one too]
Before anybody asks the froint spoiler in the picture is from Mustangs Unlimited. (factory style) [They have a longer then stock one too]
Fiberglass bumpers
How much did you actually pay for those bumpers from MAS? Did you also have to mock up some kind of attatching brackets or do they come direct fit? I found a few places that sell fiberglass stuff for the MII I just never checked to see which companies if any make them with the attatching bolts.
Dan
How much did you actually pay for those bumpers from MAS? Did you also have to mock up some kind of attatching brackets or do they come direct fit? I found a few places that sell fiberglass stuff for the MII I just never checked to see which companies if any make them with the attatching bolts.
Dan
Well as a proud Canadian shopping in the U.S, I bent over and paid $79.00 each American for the bumpers. By the time everybody was done &*%$#! me they cost $160.00 Canadian each 
It is kinda hard to see, but the one photo of the un-painted bumpers shows the back side of them. The bumpers have no brackets or instructions. They looked very good for the low price. (I work at a speed shop and I have seen much worse!) I burnt the urathane off the original bumper supports, at that point they were sand blasted and the new fiberglass bumper skins were "Vette-Bonded" on to the original steel bumper backings.
P.S Order the catalog, It made me laugh for hours. It looks like it was printed in 1979! It had Calanders for sale with half naked chicks drapped over Mustang II's! (The chicks are probably older then my mom now!)
It is kinda hard to see, but the one photo of the un-painted bumpers shows the back side of them. The bumpers have no brackets or instructions. They looked very good for the low price. (I work at a speed shop and I have seen much worse!) I burnt the urathane off the original bumper supports, at that point they were sand blasted and the new fiberglass bumper skins were "Vette-Bonded" on to the original steel bumper backings.
P.S Order the catalog, It made me laugh for hours. It looks like it was printed in 1979! It had Calanders for sale with half naked chicks drapped over Mustang II's! (The chicks are probably older then my mom now!)
welder4956
20+ Year Stangneter
78CobraII
Moderator
windsoreight said:
For occasional street use, how about using some aluminum square tubing for replacing the bumper shocks and the bumper reinforcement? It would require quite a bit of fabrication, but would be lighter and better than nothing in an impact.
78CobraII
