Chaparral2f Posted December 10, 2003 Share Posted December 10, 2003 I am going but a cowl induction insert from Summit, but before I do, can anyone explain to me how to bond and mold it in so it doesn't look really bad? Quote Link to comment Share on other sites More sharing options...
Georgia Flash Posted December 10, 2003 Share Posted December 10, 2003 Just get the fiberglass hood and be done with it Quote Link to comment Share on other sites More sharing options...
JKDGabe Posted December 10, 2003 Share Posted December 10, 2003 Just get the fiberglass hood and be done with it Unless your time is free, or you're a really good at body work then I'd agree with that. Sorry to be no help at all... I'd tell you what I think is the right way but I'd just probably be wrong and there's several body guys here who I'm sure know how. Quote Link to comment Share on other sites More sharing options...
Tim240z Posted December 10, 2003 Share Posted December 10, 2003 It's not all that bad, but it definitely time consuming. Here is what I would do (caveat: I have not done this myself, so I'm speaking from theory, but I have done a couple of body mods to my car, so I'm pretty confident that this is correct): Place the part on your hood in the spot where you want it to be. mark a line around it on the hood with a sharpie. Using a grinder and sanding pad (80 grit minimum) grind from the line to about 4 inches out from the line to roughen up the hood surface (get all the paint off). Using a bonding agent (several glues are available for 'glass to metal), stick the part to the hood. I would follow that up with either rivets or sheetmetal screws to be sure that it won't move around on you, Sand the cowl a bit at the joint to the hood. Then, using some fiberglass reinforced body filler, skim the joint with a wide enough swath to make the transition smooth. Sand that down to feather the edges. Once you are happy with that, skim again with plastic filler, making sure that the edges are feathered to the hood surface. If you want, you can then skim with polyester filler to fill the sanding scratches. It may take several skims of each type of filler to get the desired results. Like I said, it's not difficult, but is very time consuming. Expect to have it take you 3 or 4 full days of work. Then you can primer and paint. Tim Quote Link to comment Share on other sites More sharing options...
Mike kZ Posted December 10, 2003 Share Posted December 10, 2003 I bonded my scoop pretty close to what Tim said. But, instead of a glue, I used Bondo to stick the scoop down with screws to hold it in place. Once dry, I removed the screws, feather edged it, then layed down some strips of fiberglass sheets around the edge. Then sanded, and bondoed it smooth. The car has been on the road for almost 3 years with no problems. Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted December 10, 2003 Share Posted December 10, 2003 Tim, Won't he need to cut a hole in the hood as well? Otherwise it would not be a cowl induction hood. It would just be for looks if just bonded on. Rufus Quote Link to comment Share on other sites More sharing options...
Mike kZ Posted December 10, 2003 Share Posted December 10, 2003 Tim' date=' Won't he need to cut a hole in the hood as well? Otherwise it would not be a cowl induction hood. It would just be for looks if just bonded on. Rufus[/quote'] Well yeah, I guess that is a given Quote Link to comment Share on other sites More sharing options...
Chaparral2f Posted December 10, 2003 Author Share Posted December 10, 2003 I would rather just buy a fiberglass hood, but since I am doing a Z31, there isn't one available that I have found. Actually there isn't much of anything availabe for a 31. I may go back to a carb to get some hood clearance (short injector stacks are another option, but changinng the length of the stacks will move my power curve up the rpm band),but still the mag is too tall for the engine compartment. Thanks everyone for the information on bonding the cowl. The answers that I get, are just another reason that this is the best sight on the net bar none. joe Quote Link to comment Share on other sites More sharing options...
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