Well I did talk to some company a while back about ceramic coating. I think the method they used would work... I can call them and ask them about it. I had it done to my pistons and valves on my first supra.
Cheers,
Roy
Cheers,
Roy
Alluminum for exhaust pipes: bad idea?
- Thread starter Reign_Maker
- Start date
The primary problem with aluminium is that even though it has a melting point is close to exaust temperature its radically above the creep temperature which for most aluminium alloys is not to far above room temperature. as an example 6061-t6 aluminium sample exposed to 100 degree C with 248 MPa of stress will rupture in 1000 hours if we go up to 200 degree C in order to last the same 1000 hours the stress has to be reduced to 102 MPa. 304 stainless steel will last 1000 hours at 550 Degrees C with stress of 120 MPA. Aluminium would last minutes at that temperature and stress
IJ. said:(I can't believe we're seriously discussing this)
Jake asks the most thought provoking questions
the best and lightest exhaust would be a single 4 in titanium pipe exiting right after the front tire :love:
or you could just purchase a big exhaust, then just maybe visit club fit, if your REALLY concerned about weight!:biglaugh: :biglaugh:
ROFLMAO gotta agree here get ya dumpy arse to the gym and quit trying to make the car light !!s383mmber1 said:
<jk>
hahah, ive always wnated to let that one out....so i thought id throw it in this thread. Ori love the little honda civics who put on, like 5-600 dollar hoods.....GO TO THE GYM AND SAVE THE MONEY!
Gym costs $60 a month... That's $720 a year... I could buy a really SWEET hood with that... lol...
But then again, I could quit eating, save some money there, while losing weight, then I could afford that sweet light weight exhaust!
Want a burger?
NAAAH! Im savin up for my exhaust!
But then again, I could quit eating, save some money there, while losing weight, then I could afford that sweet light weight exhaust!
Want a burger?
NAAAH! Im savin up for my exhaust!
Reign_Maker said:Gym costs $60 a month... That's $720 a year... I could buy a really SWEET hood with that... lol...
But then again, I could quit eating, save some money there, while losing weight, then I could afford that sweet light weight exhaust!
Want a burger?
NAAAH! Im savin up for my exhaust!
instead of saving up for exhaust, just look around in the for-sale section and you can find some great deals. I just bought a 3.5" custom exhaust with a titanium tip for $175 from some guy on SF . . .oh wait. . . . :biglaugh:
wh0wants2know said:
Im a sucker, lol! Just let ya know bro, the shipping comapany just came and picked it up, so its on its way!
This thread is funny as hell in my books.
The other problem with Aluminum is that it doesn't have the infinite springy quality that good steel provides. Every grade of AL has a different Y-modulus - the measurement of how much repetetive flexing it will take before cracking, in very simple terms. So, in short, even the best AL exhaust, unless you can completely eliminate flex, will have a definite lifespan.
Of course, none of this would matter if it melted in the first day.
The other problem with Aluminum is that it doesn't have the infinite springy quality that good steel provides. Every grade of AL has a different Y-modulus - the measurement of how much repetetive flexing it will take before cracking, in very simple terms. So, in short, even the best AL exhaust, unless you can completely eliminate flex, will have a definite lifespan.
Of course, none of this would matter if it melted in the first day.
aye mate said:
no one seemed to agree with me when i was open DP... i thought it sounded nice... :biglaugh:
aye mate said:
ill be sure to tell that to the kind police officer that pulls me over and tells me my car set off 153 car alarms while he was chasing me :biglaugh: :biglaugh: :biglaugh:
haha..... My car has never had an exhaust system... Been open DP since the day it first fired up