Thread: Hori Turbo Throw Together

Originally Posted by Bearman

Did you try a full turn of the screw Badco. That might give it a bit more and probably won't effect the egt's, if anything it might drop them a little. I would be aiming for 20psi boost and use your right foot instead of the wastegate. Lucky you noticed the oil problem!

Hey Bearman, I have edited my last post. I currently have 1.5 turns of the screw. Tonight I'll wind it back a half and adjust the wastegate to 15 psi and have a play with that, see how it goes.

I'm not sure what this turbo will handle in terms of boost, 12-15 psi might be the max.

We noticed the oil problem because the pressure gauge went to zero and the windscreen got a spray of oil haha

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Originally Posted by Paultan

Good work Steve. Now when you going to put mine in

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I'll write you a shopping list and we'll get right into it!

Originally Posted by isuzurover

Remember when tuning diesels that more boost = lower EGTs. And more fuel can also mean more boost and lower EGTs.

For tuning purposes it may help to have the wastegate shut so you know if fuelling is limiting boost or not.

In my case I had the turbo on for quite a while with the load adjustment screw out 1 turn. EGT would easily hit 750 if I wasn't careful (with a load on and a hill or serious headwind).
I eventually turned the screw another turn and the EGT dropped about 100oC under average. Can't even hit 700oC now.

Yup I know what you are saying, I have read similar things along those lines. The problem being I don't know what this turbo is cable of and I don't want to destroy it running high boost.

Originally Posted by Vern

Currently out 3.5 turns, but with the new inter cooler it might come right out

Well I'll wind it out another turn then and see what effect this has haha. I have my local test hill, its small but I will be able to tell the difference in boost and EGT with different amounts of fuel.

With my test hill, can I tune to say, 600C unladen on the small hill and that will give me a buffer of 100-150C for being fuilly laden on a big hill climb? Or does it not work like that...

Cheers for your inputs guys!