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Message
Interesting. I didnt see 50 MAP on my old turbo unless
I held the wastegate closed. I wonder why. I'll watch the map carefully on the
next flight, but I dont think it went anywhere near that on the one 40 minute
flight I did since changing turbos. Are you saying the
wastegate is ported on "our" turbo?
Hi
John,
The turbo you have is
not ported. It is a series 5 unit, and Todd has a series 4. The
4 had a much smaller wastegate, and Todd ported his, but it's still probably not
any bigger than the stock wastegate on the series 5. It's possible to port
the 5 as well, and it would probably be a good idea. I bought a second
turbo on Ebay, and took it apart to port it, but found the insides were so heat
cracked that it wasn't worth the effort. My assumption is that all these
turbos, including yours, is the same way inside after some use.
This was the other reason I don't consider these stock turbos to be a
good choice.
As for your lack of
overboost, you mentioned in a previous message that you haven't yet used full
throttle. Boost is very controllable by throttle, and you won't really see
full boost, untill you use full throttle. Do this very carefully, and
preferably on the ground. Hmmm, how do you tie down a canard for
static runs? Maybe you just tell it that it's been bad, and it sticks
it's nose in the corner
:-)
Cheers,
Rusty (bad, but not in
the corner)
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