Thread: high egts in top gear only (auto D2 td5)

Delamination of turbo hose sounds a possibility. Not unusual for the EGTs to drop in a lower gear, you are trying to push out more torque in the higher gear which means more fuel and more boost both wich generate heat.

Not enough boost means less air and if you are pushing a higher gear the fuel demand will be there, more air helps with cooling the exhaust gases so I would not rule out any faults with the turbo or control or cooling of the intake.

600C is not tragic for your engine but you don't want it much higher for long periods of time, that is if you are taking yor temp reading pre turbo.

cheers slug, yep temp pre turbo. Madman set to alarm at 680 and stsrted going of on a down hill slope, i knew something wasnt right. pergaps the fsn noise i could hear wss the air trying to squeeze through the restricted hose? possible. ill rip it off tomorrow and have a squiz. cheers

no smoke out the rear though come to think about it, so it might not be delamination, but still going to check.

Check to see if you've not got a hose slightly slipped off.

The fan noise is very likely your viscous fan because it was toasty outside. The hotter the fluid in the fan coupling, the tighter it binds as it tries to suck heat out of the radiator. Will take some power out, I'd say 5%.

My car was doing it all today too, completely normal.

Sent from my HTC_0P6B using AULRO mobile app

it wasnt the viscous fan, i know that one from previous experience, but thanks for the suggestion though, always appreciated.

it was definitely coming from the turbo area, very distinctive and followed the turbo spooling.

Quick and dirty.

Boost is the engine trying to make power EGT I'd the engine trying. To make torque

Top gear requires the same. Amount of power at lower rpms so there for needs more torque so higher egts.

Initially this starts to add. Heat load to the cooling system once the cool I g system heats up the viscous fan hooks up more so adds more load to the engine, more load needs more torque....

Thank Mr Knight, explains it perfectly.

Found the culprit.......

blown hose
uploadfromtaptalk1420329653990.jpguploadfromtaptalk1420329673203.jpg

temporarily fixed with my magic liquid till i can order a replacement. Not sure if will hold for long though

uploadfromtaptalk1420329754239.jpg