jdmrx-7

i was wondering how hot should my tail pipe be. i have a 89 gt-x turbo all stock, im in japan if that makes a differrents on the car. the tail pipe gets so hot u cant tough it and if you put water on it, it will sizzle off real quick.

any ideal is this normal

FC3S_nataku

iTrader: (3)

umm, when the turbo is super heating the air to escape quickly so i would suspect that the exhaust would get very hot.

Icemark

I burn my leg all the time on my exhaust pipe just getting stuff out of the trunk.

These are not some piston cars with their cool running exhaust

Madrx7racer

ummmm.....DUH!!!!!!!!!!!!!!!!!!!!!1 come on man!!!!!! exhaust temperatures can exeed 1700*F!!!!!!!!! DUH it's gonna be hot!!!!!!! I'm amazed mark didn't close it like he usually does.........he must be in a good mood this morning.

jdmrx-7

well DUH im new to the rx-7 smart a$$ never in my 20 year around cars ever seen a car sizzle 12oz of water in 2 minuts on a full length exhaust. i know rotors are not anything like piston just seemed way hot to me

and as far as it getting closed that is up to him and cant argue with it but if a post get closed when someone has a legidiment concern i dont think its right. if it was up to me replies like yours would be deleted.

YearsOfDecay

I have three or four parentheses burn scars on my shins from the racing beat stainless steel exhaust tips from being a ******** and stepping too close.. if i get a few more in the right positions... I'll have a smile face

Never mine the water sizzlin off the pipes... i have actually hear my SKIN sizzle!!!

YearsOfDecay

Dude.. calm down, have some dip... welcome to the club..

Oh, yeah... and get used to the ribbin, some of these guys can be a bit rough on newbs....

Use the search function A LOT and you will get flamed a LOT LESS BTW.. in case you didn't know it... the comment that set you off is called a flame.. therefore, you've been flamed!!!!

The reason that the exhaust is so hot is that there is a CONTINOUS blasting of exhaust gas hitting it at about 1300 degrees.. Piston cars puke out the exhaust once every TWO revolutions out of each cylinder.. A rotary barfs exhaust out of each rotor three times per revolution (well, wobble-eliptation) of the rotor.

Because of the continous, almost uninterupted flow, the metal gets exposed to much more heat than a piston motor in an equal period of time, and it just starts flowin back towards the tailpipe!!

If you ever ridden a two stroke dirtbike, where the exhaust is pushed out with every revolution, you know how how those bastards can be.. Rotary is very similar in that respect. and the whole premixin thing.. In fact, I used to tune my RD350 (2-stroke street bike where the Banshee 4-wheeler gets is motor from) with an EGT meter back in the day.. and the accepted best power range was to have the EGT be 1275F .. pretty much what my 7 shows!!!!!

If you want to see proof that Mazda realizes that the rotary is capable of putting out major amounts of heat... Look at your STOCK oil cooler, its up in front of the radiator... Its bigger, and more efficient than most aftermarket ADD-ON oil coolers I've seen. And its STOCK!!!! Hell, most cars dont even HAVE an oil cooler!!!

Madrx7racer

lol.......I turned on my fiancee's car for about 10 seconds to check for an exhaust leak then went under it and BURNT myself with the header.......10 SECONDS!!!!!! it still hurts...