Silvia Club of NSW

ahhh so it can be done, it sounds a bit shonky, id rather do it the right way the first time

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93 180sx
SR20DET, GT2871 .86
13.2@105mph, 210kw@15psi

I don't know if I would go as far as calling it shonky, if you pull the exhaust housing off the turbo and use the right welding rod I see no real problems. But if you are buying a new turbo then you would buy one without the internal wastegate.

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I didn’t break it, I just modified the operational status...
There are 10 types of people in this world, those that understand binary, and those that don't.

I wrote it before and ill write it again. If the internal wastegate works then dont bother stuffing with it. The wastegate WILL out flow the turbo.

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To live your dreams you must first face your fears...........

have heard this many times before aswell, for an internal wastegate im guessing the first thing to go would be the actuator not the actualy gate

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93 180sx
SR20DET, GT2871 .86
13.2@105mph, 210kw@15psi

True. Its normally a creeping actuator that is the weak link in the internal gate set-up rather than the gate flap itself.

Also why are going to high mount such a turbo??

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To live your dreams you must first face your fears...........

just make a cover that sits over the tubular manifold and no one will ever notice it's not standard.

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The Engine Whisperer - fixer of things

thats what i was thinking, more specifically a heat shield

for this i got a mouldable heatshield from http://www.acl.com.au/, through repco their distributor - seems like a good product, yet to fit though

looks wise I don't think it is worth the trouble. While on the topic of covers how do you guys feel about turbo blankets. I was looking at a website that said you should remove the blanket for garaging to stop heat soak.

That would be a major pain in the but if you have to remove it every night. The reason I ask was because I was thinking of having the exhaust manifold and turbo housing ceramic coated and getting a blanket but if that much maintainance is required....

Brad at what boost levels would you expect the actuator creep to kick in?

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I didn’t break it, I just modified the operational status...
There are 10 types of people in this world, those that understand binary, and those that don't.

how would removing the turbo blanket help heat soak?

By the time it's cool enough to remove there can't be any possible difference while the car sits in a garage overnight!

I can see that a turbo blanket will cause the turbo to run at a higher temperature during operation, and take longer to cool down, but that's an operating concern, not a storage issue.

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The Engine Whisperer - fixer of things

From their website....

http://www.horsepowerinabox.com/HPIAB2/category60_1.htm

As these Blankets are designed to retain heat within the turbo, it is recommended that the blanket be removed for vehicle "Garaging" as retaining the heat without the water/oil circulation may cause long term reduced life for the turbo (this is particularly relevant when used with non-water cooled plain bearing units).

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I didn’t break it, I just modified the operational status...
There are 10 types of people in this world, those that understand binary, and those that don't.

With something like a HKS actuator you are not going to see any wastegate problems till the turbo itself is way out of its leauge.

The cost of a HKS actuator is much cheaper and userfriendly compared to the cost of setting up a good external gate system.

For waht you are trying to acheive trust me and stick to the internal gate and a good actuator IF you have problems with the garret one.

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To live your dreams you must first face your fears...........

Yes I definately think that is the way to go. Until I get a FMIC set up the stanard turbo isn't even been taxed (7 PSI). I was thinking about a selling point way down the track but I really cant justify the extra cost based on what I have read.

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I didn’t break it, I just modified the operational status...
There are 10 types of people in this world, those that understand binary, and those that don't.

Just because its got an external gate is not really a good selling point.

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To live your dreams you must first face your fears...........

hmm, sounds like they're covering themselves against peoples cooked turbos by saying you should remove the blanket from the red hot turbo before you park the car!

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The Engine Whisperer - fixer of things

agreed. I'd see it as a negative personally.. my S15 had a 440hp bolt on garrett turbo on stock manifold with internal gate.. if it had a high mount external gate setup (even with the same turbo, same power, same boost), i wouldn't have bought it...