Originally Posted by TeamRX8
(Post 4708399)
Huh, thought the first log where you said it was maxed out indicated 4.69, my bad then.
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Ahh, just a coincidence it was the same number as the max OE MAF map voltage number then, lol
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Comparing it to a NA dyno, it looks like you are making more power from 3k rpm on. It's a virtual dyno, so take it with a big grain of salt, but 10psi+ at 4k is nothing to sneeze at.
As you tune it out, you may get an earlier spool as well. |
^ i agree
I think .83 A/R combined with the following should lower spool by by 1k rpm or so https://youtu.be/UQpSdFlGhus |
Originally Posted by Harlan
(Post 4708453)
Comparing it to a NA dyno, it looks like you are making more power from 3k rpm on. It's a virtual dyno, so take it with a big grain of salt, but 10psi+ at 4k is nothing to sneeze at.
As you tune it out, you may get an earlier spool as well. |
so you have the wastegate close at 1psi then reopen at full boost?
maybe i am missing something, did you try just running the wastegate like normal? |
is your ssv opening later or like OEM on this tune?
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Originally Posted by Harlan
(Post 4708453)
10psi+ at 4k is nothing to sneeze at.
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*Replacing turbine housing with the 0.83A/R |
Originally Posted by FazdaRX_8
(Post 4708597)
so you have the wastegate close at 1psi then reopen at full boost?
maybe i am missing something, did you try just running the wastegate like normal? |
Originally Posted by FazdaRX_8
(Post 4708598)
is your ssv opening later or like OEM on this tune?
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Getting there . This one at 16psi ... loads at 220% . No wastegateing issues as yet
https://cimg3.ibsrv.net/gimg/www.rx8...4d57ac2375.png |
Originally Posted by hoss -05
(Post 4708605)
Best decision ever~!
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Originally Posted by Brettus
(Post 4708615)
I will be trying a small mod to the manifold instead ;)
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頑張ってブレッテス、頑張って!
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Originally Posted by hoss -05
(Post 4708616)
Go on......
Gunna concentrate on getting the pulse energy back from the siamese port . Don't feel like an argument over why it wont work right now . So I'll see if it does then post. |
You will need higher backpressure at the center port for effective boost control though. At your power level for that turbo I don't think the "whammy" is as much as you think it is.
But good luck with whatever direction you go from here. |
Originally Posted by TeamRX8
(Post 4708604)
15 years ago maybe
Originally Posted by TeamRX8
(Post 4708648)
You will need higher backpressure at the center port for effective boost control though.
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Originally Posted by Harlan
(Post 4708711)
This is new and the results are promising.
. One half of the goal is already achieved pretty much .... if I can get close on the other half (by improving spool), I think I can just about be justified in removing the question mark on the thread title. |
^^choosing to ignore silly commentary ...
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Originally Posted by Harlan
(Post 4708711)
If he's controlling at 16psi .
I currently have a 6psi spring in and can dial up whatever boost I want .... that 4 port valve really is doing the trick ! |
Originally Posted by Brettus
(Post 4708621)
The 0.83 idea will definitely improve spoolup but the effect top end will be a double whammy kinda deal . Less power due to higher backpressure at turbo AND siamese .
Gunna concentrate on getting the pulse energy back from the siamese port . Don't feel like an argument over why it wont work right now . So I'll see if it does then post. |
Originally Posted by stinksause
(Post 4708745)
I like where your mind is - which scroll are you going to direct it to?
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