hi i have 2001 bugeye wrx and the turbo up pipe needed changing becuase it was holding it back ..i have put another standard pipe on there so like for like and boosts great now but it seems to be running quite high on the temperature guage almost just under the red ..and got a bit of the bubbling noise under the bonnet.. but all was ok until i changed the pipe any ideas as to why

 

I could have an air lock mate u got any symptoms of head gasket?

 

Was the original a cat pipe & you put on a decat? First you need to check the coolant level.

 

I didnt disconnect any coolant pipes and i put a standard fit up pipe on the car the exact same one that was on there with cat ..so likefor like .. Just seemsnow itsboosting properly its getting hot

 

Why did you change the up pipe? Have you lost coolant, is the level OK.

 

Changed uppipe because it was holding back on boost ie cat collapsed . Goes great now but getting hot whereas before changed pipe it was ok

 

On my bugeye wrx.

Prior to decat.

The EGT sensor reading was approx 660C

After the full decat (3 inch exhaust tbe) which included the up pipe.

The reading is now 890c+

However it should be noted that my wrx was remapped and runs higher boost.

I did not at any time see differences in the watertemp reading. Note the OEM water temp gauge does not show minimal water temp differences.

For the unit to climb close to red, it means the Water temp is higher than 106 C. This is cause for concern and I would not drive the car until to get a proper diagnosis.

The bug wrx did not blow it headgasket as easily as the newer cars. but still better be wise and get it sorted else you could be looking at a big bill.

Also simple issues could be causing this. Air lock in coolant passages. Failing rad cap. collapsed hose. Check the water pipe to the turbo and the one under the header tank, common failure on these cars. They get a pin ***** leakage from age and lose pressure.

You have to understand decatting = more heat radiating. However your car should not be over heating.

 

Well thank you so much it seems the header tank is leaking and sorted niw thank you.. One thing i noticed after taking the car for a blast is when i return there is like a oily leak which i thought was water but has a texture to it ..its running down the nearside of the rad .. Ive notived theres a little ally block with a little glass inspection view in it and uts in i think the aircon pipe and something is trickling out from there more so under boost when driving gently its ok ..does the boost affect this ?