DaveR Posted March 14, 2010 Share Posted March 14, 2010 Hi all. I was wondering if it's dangerous or not to cut a hole in the portion of metal in the engine bay under which the stock airbox sits. I've seen this done a couple of times for various reasons and wondered if it was actually acceptable or if it can compromise the safety / rigidity of the chassis. I've included a pic for reference (hope you don't mind, Davey001!) with the hole in question circled in green. Any advice by knowledgeable members would be massively appreciated! Quote Link to comment Share on other sites More sharing options...
JamieP Posted March 14, 2010 Share Posted March 14, 2010 No its fine, done the same on mine to fit my air filter in the bumper. Quote Link to comment Share on other sites More sharing options...
w41k3r Posted March 14, 2010 Share Posted March 14, 2010 looks fine, chop away Quote Link to comment Share on other sites More sharing options...
Jurgen-Jm-Imports Posted March 14, 2010 Share Posted March 14, 2010 on some ic kits you have too aswell Quote Link to comment Share on other sites More sharing options...
Lee P Posted March 14, 2010 Share Posted March 14, 2010 I had mine the same when bpu and now I use it for a cold air feed for the twins. Will not cause any problems. Quote Link to comment Share on other sites More sharing options...
DaveR Posted March 14, 2010 Author Share Posted March 14, 2010 I use it for a cold air feed for the twins. That's exactly what I wanted to do, hence why I asked, you see?! JamieP, if you've done it on your beast of a car, I think I can feel pretty confident that it's okay to do! Thanks all for the advice. I guess I'll get cutting sometime soon! Quote Link to comment Share on other sites More sharing options...
DaveR Posted March 14, 2010 Author Share Posted March 14, 2010 Okay then, one more thing: what's the best way of chopping a hole out myself? As in, what's the best tool for the job in this case? Quote Link to comment Share on other sites More sharing options...
SupraHuman Posted March 14, 2010 Share Posted March 14, 2010 Okay then, one more thing: what's the best way of chopping a hole out myself? As in, what's the best tool for the job in this case? I used a plasma cutter. Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted March 14, 2010 Share Posted March 14, 2010 house hold tin opener Quote Link to comment Share on other sites More sharing options...
imi Posted March 14, 2010 Share Posted March 14, 2010 if it can compromise the safety / rigidity of the chassis. Just because a few have done this to their supras doesn't necessary answer your particular question. Dont think anyone can provide you with a definite answer to this as doubt anyone has the resources or even the skill to. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 14, 2010 Share Posted March 14, 2010 Wrong. The resources and skill to crash test Supras abounds in this forum Quote Link to comment Share on other sites More sharing options...
JustGav Posted March 14, 2010 Share Posted March 14, 2010 Wrong. The resources and skill to crash test Supras abounds in this forum If you were a) blonde b) 20-30 c) unmarried d) female I'd marry you Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 14, 2010 Share Posted March 14, 2010 Safe on all 4 counts, but nonetheless concerned, please don't take this personally though.... Quote Link to comment Share on other sites More sharing options...
JustGav Posted March 14, 2010 Share Posted March 14, 2010 Safe on all 4 counts, but nonetheless concerned, please don't take this personally though.... Quote Link to comment Share on other sites More sharing options...
imi Posted March 14, 2010 Share Posted March 14, 2010 If you were a) blonde b) 20-30 c) unmarried d) female I'd marry you She would enjoy bossing you around and dress you up in a skirt Quote Link to comment Share on other sites More sharing options...
nevins Posted March 14, 2010 Share Posted March 14, 2010 (edited) She would enjoy bossing you around and dress you up in a skirt He already does wear a skirt to do the house cleaning Don't you Gav http://www.youtube.com/watch?v=Vng-lF2Ftl4&feature=related Edited March 14, 2010 by nevins (see edit history) Quote Link to comment Share on other sites More sharing options...
JustGav Posted March 14, 2010 Share Posted March 14, 2010 He already does wear a skirt to do the house cleaning Don't you Gav "I want to break freee....." Quote Link to comment Share on other sites More sharing options...
nevins Posted March 14, 2010 Share Posted March 14, 2010 "I want to break freee....." hahahaha Quote Link to comment Share on other sites More sharing options...
Terminator Posted March 14, 2010 Share Posted March 14, 2010 Given the gauge of metal used in the chassis leg, I doubt that the thin steel used in that area has a significant role to play in the structural integrity of the car. If you want to play safe you could always have some thicker plate welded on to strengthen the area round the hole. I have a hole on the other side to maintain the flowing curve of my IC pipes up to my throttle body. It was cut out with a hole saw. Quote Link to comment Share on other sites More sharing options...
DaveR Posted March 15, 2010 Author Share Posted March 15, 2010 Given the gauge of metal used in the chassis leg, I doubt that the thin steel used in that area has a significant role to play in the structural integrity of the car. If you want to play safe you could always have some thicker plate welded on to strengthen the area round the hole. I have a hole on the other side to maintain the flowing curve of my IC pipes up to my throttle body. It was cut out with a hole saw. Cool - that all sounds good. Thanks a lot for the advice! Quote Link to comment Share on other sites More sharing options...
madwoody1 Posted March 15, 2010 Share Posted March 15, 2010 have a look on a site like toolstation or screw fix they sell hole cutters that i use (electrician) and they go up to at least 120mm and they cut into that metal with ease http://www.toolstation.com/shop/Power+Tool+Accessories/Holesaws/d80/sd1530 Quote Link to comment Share on other sites More sharing options...
pezzler Posted March 15, 2010 Share Posted March 15, 2010 I want a decent cold air feed to my airbox, Im guessing this wouldnt be a great idea with a sidemount though. Any other suggestions to where the retrofitted air feed pipe could be ducted? Is there any room upfront? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 15, 2010 Share Posted March 15, 2010 Can't you modify a stock air box? N/A ones are easy to find and could be modded to suit? Quote Link to comment Share on other sites More sharing options...
DaveR Posted March 16, 2010 Author Share Posted March 16, 2010 I want a decent cold air feed to my airbox, Im guessing this wouldnt be a great idea with a sidemount though. Any other suggestions to where the retrofitted air feed pipe could be ducted? Is there any room upfront? I intend to cut the hole that's been discussed here and route some cold air ducting from the front bumper vent into the engine bay beneath my air filter, then build a custom heat shield around it all with some alloy sheeting from Paul Whiffin. That may work for you...? Quote Link to comment Share on other sites More sharing options...
DaveR Posted March 16, 2010 Author Share Posted March 16, 2010 have a look on a site like toolstation or screw fix they sell hole cutters that i use (electrician) and they go up to at least 120mm and they cut into that metal with ease http://www.toolstation.com/shop/Power+Tool+Accessories/Holesaws/d80/sd1530 Thanks, I'll check that out! Quote Link to comment Share on other sites More sharing options...
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