| Silvia Club of NSW https://forum.silviansw.com/ |
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| External Wastegates https://forum.silviansw.com/viewtopic.php?f=1&t=20272 |
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| Author: | DREAMD [ Fri Jan 20, 2006 3:32 pm ] |
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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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| Author: | 182Go [ Fri Jan 20, 2006 5:13 pm ] |
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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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| Author: | Risking [ Fri Jan 20, 2006 5:56 pm ] |
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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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| Author: | DREAMD [ Fri Jan 20, 2006 6:03 pm ] |
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Risking wrote: 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.
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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| Author: | Risking [ Fri Jan 20, 2006 6:48 pm ] |
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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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| Author: | DumHed [ Fri Jan 20, 2006 8:07 pm ] |
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just make a cover that sits over the tubular manifold and no one will ever notice it's not standard. |
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| Author: | mokompri [ Sat Jan 21, 2006 1:31 pm ] |
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DumHed wrote: just make a cover that sits over the tubular manifold and no one will ever notice it's not standard.
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 |
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| Author: | 182Go [ Mon Jan 23, 2006 1:02 pm ] |
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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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| Author: | DumHed [ Mon Jan 23, 2006 4:20 pm ] |
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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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| Author: | 182Go [ Mon Jan 23, 2006 6:04 pm ] |
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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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| Author: | Risking [ Mon Jan 23, 2006 6:23 pm ] |
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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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| Author: | 182Go [ Mon Jan 23, 2006 6:29 pm ] |
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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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| Author: | Risking [ Mon Jan 23, 2006 6:42 pm ] |
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Just because its got an external gate is not really a good selling point. |
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| Author: | DumHed [ Tue Jan 24, 2006 12:08 am ] |
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182Go wrote: 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).
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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| Author: | LISTEN 180SX [ Tue Jan 24, 2006 10:40 am ] |
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Risking wrote: Just because its got an external gate is not really a good selling point.
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... |
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