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I know they are a little expensive, But I was looking at a Aerocharger because they are made so if you want to go to the track and don't want any lag or if you are driving out to the track and don't want to be in boost all the time. All has to be done is to change a screw setting. Has anyone had experience with these turbochargers.
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Because for some reason people were under the impression it made full boost by 500RPM, which is never the case for another run of the mill centrifugal supercharger?
There's a reason the VF engineering kit failed. Acutally, from teh dynos I've seen of the aerodyne turbos, they impress me little as well. Just size the turbo correctly and you compromise little. here's one running low boost: https://www.miataturbo.net/attachmen...ine=1319814605 I think this was 5-6psi on a 1.6L Compared to my $150 on wastegate attached to a very similar manifold: http://www.boostedmiata.com/gallery2...rain_10psi.jpg red dashed lines. |
You never get off idle boost with a centri
I mean you get all the downsides of a sc with all the (supposedly) downsides of a turbo no torque and not much topend. only thing going for them is the ease of installation and relatively trouble free operation/dependability |
Originally Posted by richyvrlimited
(Post 789074)
Why's there no love for the Rotrex anymore? 12 months ago it was the new hotness.
TrackDayHooky – Rotrex system tweeked to the max RPM Powa 5000 179 5500 221 6000 249 6500 286 7000 364 7500 420 Savington – Absurdflow 2871 1.9L RPM Powa 5000 280 5500 300 6000 330 6500 340 7000 350 7500 340 bbundy – DIY 3071 with FM 2.0L RPM Powa 5000 310 5500 325 6000 340 6500 356 7000 340 7500 300 |
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This is a friend of mine with a Nissan KA24DET and he's racing in NASA, which he has to stay under a certain power to weight ratio. So his boost on his GT2871R goes low rpm 12.5 psi to high rpm 6 psi, so his hp is as much as a flat line as possible. (thats one good thing about turbos)
https://www.miataturbo.net/attachmen...ine=1319820423 |
well, its safe to say it would be hard to stay in the that rotrex's power range on a 5-speed. I could see it being useful on a 6-speed though...with a 4.1 or something.
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Originally Posted by Track
(Post 789119)
well, its safe to say it would be hard to stay in the that rotrex's power range on a 5-speed. I could see it being useful on a 6-speed though...with a 4.1 or something.
FWIW at Pacific Raceway I've hit 7100 rpm in 6th with a 3.636. Bob |
Originally Posted by richyvrlimited
(Post 789074)
Why's there no love for the Rotrex anymore? 12 months ago it was the new hotness.
Using an AVCR boost controller on a turbo you could have your class HP available over the entire working RPM (redline to after shift rpm) of the motor. That's not going to happen with a SC. Average HP in the operating range is more important than peak HP. |
^ yea thats true also! I was not taking the power handling into consideration.
As a NA miata, the fastest I have ever gone is 115mph on the back/front straight of VIR. thats probably 5.5k-6k in 5th gear with a 4.3 rear end. So any one of these options would a great addition! |
Originally Posted by 1993ka24det
(Post 789118)
This is a friend of mine with a Nissan KA24DET and he's racing in NASA, which he has to stay under a certain power to weight ratio. So his boost on his GT2871R goes low rpm 12.5 psi to high rpm 6 psi, so his hp is as much as a flat line as possible. (thats one good thing about turbos)
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Yes he is racing TTS and he was in a Mag a few years ago but here are some video/pics
http://video.google.com/videoplay?do...arch&plindex=0 https://www.miataturbo.net/attachmen...ine=1319846770 https://www.miataturbo.net/attachmen...ine=1319846770 https://www.miataturbo.net/attachmen...ine=1319846770 https://www.miataturbo.net/attachmen...ine=1319846770 https://www.miataturbo.net/attachmen...ine=1319846770 |
Very cool. Do you know what he is using for a boost controller?
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Originally Posted by ZX-Tex
(Post 789304)
Very cool. Do you know what he is using for a boost controller?
http://www.ka-t.org/forums/viewtopic...er=asc&start=0 |
That's Rob Symonds 240sx. He's a garrett turbo engineer. Cool guy.
He's running a high hp n/a motor now. |
Turbo charger being powered by a turbojet.
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