Wastgate actuator question

speed · Postby **speed** » Tue Jan 08, 2019 7:56 pm

Hey guys, turbo question for the gurus.

I've got a t28 from a s15 Silvia on my NA6 and recently did a motor swap. Car is not boosting as it should. I dont have a boost gauge but it just feels funky and more like an N/A.

Reckon my wastgate actuator was damaged during the motor swap. The o ring on the actuator rod was hanging out and I had to adjust the rod a few turns so I could clip it on the flap.

Would there be any harm in me swapping the t28 wastgate actuator for the one I have on a spare Nissan t25???

I mean is there even any difference?

Thanks!!!

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speed · Postby **speed** » Tue Jan 08, 2019 8:33 pm

Never mind. Believe I've not put enough preload where the rod clips to the flap.
Will adjust and try again!

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Wolfgang · Postby **Wolfgang** » Tue Jan 08, 2019 8:39 pm

I'm no turbo expert, but a quick google says bolt pattern is different.

speed · Postby **speed** » Tue Jan 08, 2019 8:42 pm

My bracket has holes for both as I made it that way. Anyways reckon it's my bad for not having adequate tension.
Thank you very much though

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Magpie · Postby **Magpie** » Tue Jan 08, 2019 9:05 pm

Lokiel?

speed · Postby **speed** » Tue Jan 08, 2019 9:12 pm

Magpie wrote:Lokiel?

Thanks Mark. Pretty sure it's my fault. I dont even have half a hole preload, so will start with that and see if my boost returns.

Special thanks to Chris Whittaker for talking me thru it. Absolute legend of a bloke!

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ManiacLachy · Postby **ManiacLachy** » Wed Jan 09, 2019 7:53 am

You might not have a boost gauge, but you've got a megasquirt, right? So just log it and see what boost you're hitting and at what RPM. Looks like you've found the issue, but you can still check your boost response and level.