Originally Posted by yossi126
(Post 1448483)
Just by opening the wastegate you limit boost.
I suggest you look up Greg's video about boost control. |
Lol @ referencing gregs video
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great numbers!! I think you would be a good candidate for the skunk 2 manifold. On a setup like yours I bet a higher flowing IM could net you 280+
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nope
the new junk2 nutswinging is starting to get really old. esp since we've yet to see any conclusive evidence of it's superiority |
Originally Posted by 18psi
(Post 1448813)
nope
the new junk2 nutswinging is starting to get really old. esp since we've yet to see any conclusive evidence of it's superiority |
I don't usually redline the engine and when pushing it, shift around 6k anyhow. So I don't think gaining a few hp between 6-7k will be beneficial to me.
I am probably going to dial down the boost a bit to around 15psi and leave it there. The engine and turbo feels happier there, not being pushed too much. Should be about 250hp and it's plenty enough power. I'm already spinning 2nd gear, even with my tall gearing. 5spd and 3.9. |
Originally Posted by borka
(Post 1448817)
I don't usually redline the engine and when pushing it, shift around 6k anyhow. So I don't think gaining a few hp between 6-7k will be beneficial to me.
I am probably going to dial down the boost a bit to around 15psi and leave it there. The engine and turbo feels happier there, not being pushed too much. Should be about 250hp and it's plenty enough power. I'm already spinning 2nd gear, even with my tall gearing. 5spd and 3.9. |
Originally Posted by andyfloyd
(Post 1448815)
lol, notice i said "could". Of course its speculation on my part but I dont see why not. Im not swinging from any nuts just stating my opinion from 13+ years of miata experience.
next thing you know it will be regurgitated by the n00bs as a definitive fact. no idea why you even mention the experience part. if anything it makes you look bad speculating on a new and untested product. OP, I think the handful of ponies you'll give up by lowering the pressure will be more than worthwhile by putting much less stress on the little turbo. good idea |
Originally Posted by 18psi
(Post 1448822)
we both know this speculation is downright silly, esp since it's been stated (by various people) in at least a few threads now.
next thing you know it will be regurgitated by the n00bs as a definitive fact. no idea why you even mention the experience part. if anything it makes you look bad speculating on a new and untested product. OP, I think the handful of ponies you'll give up by lowering the pressure will be more than worthwhile by putting much less stress on the little turbo. good idea |
Solid setup!
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Hmmm.
Has your VVT been tuned? You'd maybe lose a bit less up top with a bit more fine tuning there, no? Sounds like it's time for a 2871 :firedevil |
VVT is 'turned off' up there.
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Originally Posted by nitrodann
(Post 1448849)
VVT is 'turned off' up there.
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Originally Posted by ridethecliche
(Post 1449025)
Didn't notice that, thanks. That could have something to do with things!
What it does is adds low end and mid range torque, zero effect on top end power. no 2871 for me. 2560 at 15-16 psi is plenty of power. I'm already spinning 1st and 2nd. Anything more is just overkill and not needed on a miata. |
Originally Posted by ridethecliche
(Post 1449025)
Didn't notice that, thanks. That could have something to do with things!
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Originally Posted by 18psi
(Post 1449038)
Umm, you don't actually understand how vvt works. Please read up
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At idle the VVT is in a 'resting' position. As you approach the midrange the VVT moves the cam, more with more load, and by the time you're at 6000rpm the VVT is back in its resting position until redline regardless of load.
Your peak Hp is at an RPM where the VVT has little to no effect. As a result you won't increase the peak RWHP by 'tuning VVT'. You follow me? Dann |
He doesn't follow, it goes in one eye and out the other.
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Originally Posted by nitrodann
(Post 1449056)
At idle the VVT is in a 'resting' position. As you approach the midrange the VVT moves the cam, more with more load, and by the time you're at 6000rpm the VVT is back in its resting position until redline regardless of load.
Your peak Hp is at an RPM where the VVT has little to no effect. As a result you won't increase the peak RWHP by 'tuning VVT'. You follow me? Dann I think I'd read about this before, but this made it click for me. Certainly explains why the vvt head helps with the 'midrange' then haha. |
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