Miata scroll supercharger (homemade setup)
Hi everyone,
I'm Marc, 25 years old. I came here to find some good informations to transform an atmo 1.6L 1991 miata to a supercharged version. I started a rare project: install a VW G60 supercharger My Car: https://www.miataturbo.net/attachmen...5&d=1312989020 What the engine look likes: https://www.miataturbo.net/attachmen...5&d=1317893113 |
I got 10.5 psi at 4500rpm but my manifold air temp reach more than 210°F (ambient 77°F).
I'm planning now to install a intercooler before engine failure... What would be a good air temp target? |
Haven't you already got a thread on this?
Ambient is a good target.....but as I said in your other thread 210DegF isn't that high in my experience, you can safely drive at those IAT's if your tuning is appropriate. Fitting an IC isn't going to be a big deal on your setup anyway, as you blow through your throttle, no long intake tracts, so get to it and bask in the lovely cold(er) air. |
I worried about one thing:
My MSPnP can't read over 210°F so I think it cannot adjust fuel very well. What do you think? (I recreate my thread here because it must be the best place ;) ) |
I think you can modify the code to 'shift' the reading higher (or just use DegC :P)
If you can afford the few hundred £$ an IC will cost you then you should do it. There's no downsides for your setup. |
I'm already in Celcius :(
I will search in megasquirt if I can set up the limit temp of IAT. Thanks |
2 Attachment(s)
I'm on my way to install an intercooler.
The cardboard represent the future intercooler's core size. https://www.miataturbo.net/attachmen...ine=1318840938 I have removed the OEM fan to put the pipe between radiator and anti sway bar. http://i42.servimg.com/u/f42/16/62/88/03/2011-111.jpg |
Very cool, but hot damn those are some high IATs
The IC will have dramatic effects. |
You will need fans. Try routing hotside through fender.
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I have two 10" fans and I'll try to put them between the IC and the radiator.
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Pushers or pullers? Get some french ducting going asswell.
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They are universal type. I can return the blades and switch polarity.
I'm planning right now (in my head) on fresh air feeding. I will try to make a heatshield box for the air filter or, change the air filter (maybe a mushroom) and bring some air from the outside to it. |
Cold air intake< ducted and and sealed IC and radiator.
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Coming from the land of VW I can say that you picked the least reliable supercharger on Earth. However, it's nice to see the fab work on this.
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Originally Posted by Bond
(Post 784698)
Cold air intake< ducted and and sealed IC and radiator.
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I dont think I agree with that. The temperature at the outlet of the compressor is a product of the compressors efficiency and the inlet temperature.
Will a CAI make a big difference. No. But I think there should be a difference. |
Small difference in temperature. Not enough to notice though. What full tilt said.
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Originally Posted by Full_Tilt_Boogie
(Post 784763)
I dont think I agree with that. The temperature at the outlet of the compressor is a product of the compressors efficiency and the inlet temperature.
Will a CAI make a big difference. No. But I think there should be a difference. |
Originally Posted by jeff_man
(Post 784768)
Not saying 100% sciences it will do nothing. Compared to ducting it will do nothing. Ducting will drop your iat astronomically compared to a cai.
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Originally Posted by vehicular
(Post 784780)
While this is true, the temp at the end of the system (throttle body) will be proportionally cooler as the temp at the beginning of the system (filter) drops. Compressing the air increases the temp by a ratio of compressor efficiency and inlet temperature. Thus if inlet temp drops 30 degrees, then outlet temp drops 30 degrees.
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