Getting hot after Dawes needle and 3"

[growler2058]

Wow my water temps are HIGH like 122c high climbing up the hills. Only started since fitting the 3" zorst Dawes and needle @mudski any ideas??


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[Hodge]

What's your EGT's doing ? Where are they at when that happens?

[threedogs]

also what boost are you getting ??

[mudski]

Hey mate. We need to know what your max boost is and what your boost is at 100k's. Also an idea of EGT's too mate. If anything I would say your spool up is too slow, causing slight over fueling which may bring on higher than usual coolant temps. You manual or auto? If manual what gear were you in?

[growler2058]

Haven't got the egt gauge in yet will do that tomorrow. Boost normally 15.5 saw it hit 16.2 going up the hill at the start. Been watching it at 100ks and it's around 10-12 it fluctuates a bit.

Edit: it's an auto


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[threedogs]

Another quick question have you blocked the EGR yet ????

[Softy]

Shouldn't really have fitted it without an EGT gauge...

Try closing the needle valve to speed up the spool rate a bit.

[growler2058]

Another quick question have you blocked the EGR yet ????

Yep egr is blocked


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[Rumcajs]

Firstly, how do you know it is hitting 122°C, factory gauge will not point to that. So Scangauge perhaps? Is it just incorrect gauge setting because at that temp the engine will be cooked for sure.

Secondly, fitting Dawes and needle valve combo even if you set it wrong (read lower values) should never ever cause engine overheating to such highs full stop. If unplug the vacuum hose from the actuator and go for a drive, the only thing you will notice is lack of power and perhaps EGTs skyrocketing. If anything Dawes and needle valve combo is exposing the issue with cooling system because they makes the system power up and stay up more. In any case this just might be coincidence.

3" exhaust will not cause overheating for sure.

To me this sound like either fan not working correctly or radiator is blocked either internally or externally which would affect the engine fan.

Regards

[threedogs]

Try with the air-con on and fan on two, that will kick in the fan for the condensor
and maybe eliminate the viscous coupling as the problem

I was struggling to see how a 3" system would cause over heating probs