guess I need to hop in HArlan's thread and see what's going on
440g/s on a properly set up maf is pushing some AIRRRRRRRR |
what is harlens thread called?
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Originally Posted by Brettus
(Post 4717271)
Flow is around 430-440 g/s FWIW .
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Originally Posted by TeamRX8
(Post 4717305)
based on the reference I use to judge NA power that would work out to about 372 whp, not saying it's relative, just thought I'd see how it might compare :dunno:
I'm thinking 400 won't be a problem , but I doubt it will go much over that based on what i'm seeing. |
This is where i think the problem lies : The clearance of the inducer checks out but there seems to be too much gap at the radius which suggests too much at the exducer as well. Doesn't look too bad in the pic but can def see more gap there than there is at the inducer.
https://cimg4.ibsrv.net/gimg/www.rx8...b53d5ac035.jpg |
looks tight at the back end of the fins though, are you sure the wheel is not fubar; the leading edge appears to be cut back or worn for about 2/3 of the forward length :dunno: hard to say if I'm seeing it properly in a picture though
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Originally Posted by TeamRX8
(Post 4717310)
looks tight at the back end of the fins though, are you sure the wheel is not fubar; the leading edge appears to be cut back or worn for about 2/3 of the forward length :dunno: hard to say if I'm seeing it properly in a picture though
Not seeing what you mean re leading edge wear ... |
I'm with team. Look along the housing wall... is that a contact path I'm seeing?
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Originally Posted by yomomspimp06
(Post 4717313)
I'm with team. Look along the housing wall... is that a contact path I'm seeing?
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Is this normal? I think this is what looks funny to me. Compared to what I see in the BNR I have at the house and what mine looked like.
https://cimg2.ibsrv.net/gimg/www.rx8...44a8f87106.jpg |
Well, I guess you can kind of see those areas on mine, I guess yours just has some marks on it like you said.
https://cimg3.ibsrv.net/gimg/www.rx8...84e25064de.jpg |
It's a wild guess, but I still think it's a issue of too much timing. It would show up as lower EGTs and higher ECTs and Oil temp with a corresponding power loss. It could definitely cause a turbo to spool badly, and rather quickly destroy an engine.
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Originally Posted by Harlan
(Post 4717434)
It's a wild guess, but I still think it's a issue of too much timing. It would show up as lower EGTs and higher ECTs and Oil temp with a corresponding power loss. It could definitely cause a turbo to spool badly, and rather quickly destroy an engine.
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I would but I like my engine. ;)
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Originally Posted by Harlan
(Post 4717437)
I would but I like my engine. ;)
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I'm thinking he may have meant too little timing rather than too much, otherwise I'd expect it to detonate into oblivion before going that far off since you mostly run pump fuel ...
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Originally Posted by TeamRX8
(Post 4717449)
I'm thinking he may have meant too little timing rather than too much, otherwise I'd expect it to detonate into oblivion before going that far off since you mostly run pump fuel ...
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Decided to do a track day and see if any other issues appear before i get back into trying to sort the spoolup issue .
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have you had anyone else drive it or ride in it, do they claim it has slow spool up?
to me your logs look great. |
Originally Posted by FazdaRX_8
(Post 4717644)
have you had anyone else drive it or ride in it, do they claim it has slow spool up?
to me your logs look great. It does make boost from below 3000rpm but is quite lazy in getting to 16plus which is not like a large turbo characteristic . This gives me hope that there is still something unresolved that will make all the difference. |
Originally Posted by FazdaRX_8
(Post 4717644)
have you had anyone else drive it or ride in it, do they claim it has slow spool up?
to me your logs look great. I have been for a ride in his car multiple times (before and after the latest setup changes), I don't think this setup is too laggy (compared to my turbo rx8 and other turbo cars ive had experience with) but it definitely feels like it could be better compared to his previous setups, But once boost comes on...... it absolutely hauls, P.S. Brettus - I'm still waiting for that drive you promised me ;) |
Originally Posted by drum-beats
(Post 4717657)
I have been for a ride in his car multiple times (before and after the latest setup changes),
I don't think this setup is too laggy (compared to my turbo rx8 and other turbo cars ive had experience with) but it definitely feels like it could be better compared to his previous setups, But once boost comes on...... it absolutely hauls, P.S. Brettus - I'm still waiting for that drive you promised me ;) |
New turbo setup seems to have survived it's first track day without issue . Ran it at quite low boost though.
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results? you feel better about the spool?
what was your "quite low boost"? |
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