Higher EGT's after engine rebuild

[GUFLEX]

The engine will be tight being rebuilt. Give it some time to run in and you will find the EGTs will come down.


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Been hearing this from a few people, guessing this might be the case plus needing to re adjust the boost controller to lower the exhaust manifold pressure.

What do you mean here:
lowered the Tillix valve ramp a touch? Not sure how you have adjusted the Tillix/needle for max boost.

For Info: Try setting Tillix (boost controller) in conjunction with adjusting the needle valve to achieve the max boost say 16-17psi (w/stock ECU) and note that the needle is to be adjusted so that the VNT actuator rod lever just touches the vane limit stop grub screw with engine @ idle.

Edit: Notice that you are writing in the other place and this is OK as good to get varied advice

Low AFRs (too much fuel can make them run hotter - higher EGTs.
Yes, timing can impact but would say eng rebuild mechanic would knows his job (hopefully).
Suggested the boost control adjustment (first) as poor VNT vane management can cause increased exhaust manifold pressures and resulting in higher EGTs.

Apologies has been ages since I fiddled with the boost controller & seems I was adjusting the wrong ones

Good tip on setting the Tillix will give it a go this afternoon & try to dial it in properly.


Hopefully the above helps lower the EGT's, if not might get the AFR's checked just incase (Would hate to glaze the bores from over fueling on the break in)

I would assume the engine builder has got the timing right, but if the timing was out a tooth wouldn't the car run super rough? (Currently running quite well except for the EGT's)

Check the hoses going to your Catch can. Sometimes mechanics put them back the wrong way around. This can build up crank case pressure and can cause a number of issues.

Checked the catch can lines last night & they were plumbed to the right spots, thanks for the tip though.