Emery_

iTrader: (8)

You might want to look into a midpipe if the heat really bothers you. My 8 would get pretty hot especially when idling for a while, it had the classic "cup heaters" going on for sure lol. With a midpipe thank god it doesn't get that hot anymore, especially here in Miami, so if you're over there in Pakistan I bet it's hot as hell too.

dungeoned

ok i got the cat convertor removed as it was fully choked and blocked from inside.. now my car is running without cat convertor but the sensor is still connected and no Check Engine light. now i am facing another problem ,,, when i wake up in the morning and start my car, take a 10km drive.. after those 10km i feel like the power of the car is starting to get weak.. but when the car is cool it regains its horses// wth is this probem now? plz help me. is it the engine oil? is it the ignition? is it the transmition oil or is it the engine itself? .. OH GOD! PLZ DONT LET IT BE THE ENGINE !

bse50

Do a compression test.

dungeoned

and yes.. the heat problem is still there.

@bse50 : ok bro. what shud b the readings? and shud i run the testwhen the car is cold or after running it?

bse50

Let the mechanics do the test, the minimum specs are in the workshop manual.

dungeoned

currently i am using Toyota non synthetic motor oil 5 -30. the weather nowadays is 45 degrees centigrade too hot. is it the oil coolers>?

dungeoned

any 1??

bse50

I'd use 10w40 oils and change the oil pressure regulator to say the least, given your climate.

dungeoned

Bse50 : 10 40 synthetic oil? plz refer me the oil with brand name

bse50

Anything that isn't mobil 1 will do in your case. If you have valvoline, castrol, shell or similar oils go for them.

dungeoned

r u suggesting synthetic oil?

bse50

I use synthetic oils.

dungeoned

is ur car completely stock? and since how long u using this synthetic oil and which type of synthtic oil?

bse50

My car is not stock but that doesn't matter.
I use Valvoline, Royal Purple, Redline or Fuchs\Silkolene oils depending on the current deals available.

All the information you're looking for is available here, just search a little!

EricB

iTrader: (7)

when the car is cold, does it start up quicker than it does when its hot?

for example you leave the car sitting overnight and start it in the morning and it starts up fast

and then you drive it around and turn it off, 5-10 minutes later is it having a hard time starting back up again or is it fast like when its cold?

dungeoned

thats so kind of u bro. u gave me so much time to hep me... is this partial power loss problem happens to every 1 or just me>? i mean if the engine is ok then is there any other way which causes power loss?

dungeoned

@ ERICB: bro it starts fast when its cold (like in the morning) and it starts more fatser when its hot ( after driving it for 10 minutes or so). im so worried

dungeoned

i had the compression test done when i bought he car. i have driven it under 2000kms till now . 1st i was facing the " too much heating of floor and the console from gear **** till hand rest section ) problem , then i was told here that may b my cat conv is clanked /choked, so i checked that and it was choked really bad and was fully blocked from inside) i had the cat cov removed as we dont have emmision restrictions in our country and made a hole in the pipe and the sensor is fitted there so that i dont get check engine light. till then i didnt drive the car on high speed or long drive. i have noted this problem even b4 taking off the cat conv but i thought removing it will sove both problems i.e. powerloss and heat problem.

dungeoned

the mechanic said that compression is 100% .

EricB

iTrader: (7)

thats fine..

our engines have higher compression when its cold. If your car starts struggling to start when its hot then you probably have a compression problem.


what you are describing is normal. Every rx8 gets hot around the shifter area. The transmission is right there and it gets very hot. also the car experiences terrible heat soak issues.

some people who were bothered by it stuffed additional insulation under the plastic panels in an attempt to keep the heat out of the cabin.


EDIT: just saw your post, yeah a blocked cat will definitely increase heat in the cabin. glad you caught it, hopefully not too late. I would replace your coils plugs and wires ASAP

EricB

iTrader: (7)

if you dont have a cat anymore, dont be alarmed when you get a CEL... It will happen eventually. Just get it read somehow and make sure it is the p0420 catalyst code. It will throw a code for not having a cat.

its no big deal.

dungeoned

@EricB : and wy is it loosing power after warming up? and regaining after cold?

EricB

iTrader: (7)

it looses compression as it heats up.

I never looked into WHY, but if i were to make a guess, the metal expands when it gets hot and the seals lose contact with the expanding housing. When it cools, the metal contracts and the compression with the seals and housings get tighter.

buuut i could just be talking out of my *** there, just my guess.

RIWWP

iTrader: (2)

You are correct Eric. The housings expand more than the rotors do as they heat up, increasing the gap between the seal tips and the housings.

EricB

iTrader: (7)

sweet i was right.