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Old 07-04-2016, 05:47 PM   #41
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I know slightly more than nothing. It's in the realm of 220. That's what virtual dyno is giving me. I'm pushing 15psi right now, granted I can't keep my boost curve flat with closed loop on the ebc for some reason. I suppose the biggest thing I want out of this build is to have a linear powerband. I hate getting pulled because my tiny turbo can't flow enough. The stock motor wouldn't like much more air thrown at it.
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Old 07-04-2016, 05:55 PM   #42
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So, are you building this to mainly drag race? You may be disappointed no matter how much power you have.
Miatas simply aren't good drag cars.
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Old 07-04-2016, 06:11 PM   #43
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I have a road course somewhat close to me that I plan on running. And for the occasional street pull.
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Old 07-04-2016, 06:18 PM   #44
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Gotcha.
A well executed high power turbo build costs good money. So does a well executed v8 swap.
A lower powered turbo build is more realistic, is more drivable, and you have some parts already.
V8s sound cool.
Ask your spirit animal which path you should take.
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Old 07-04-2016, 06:22 PM   #45
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My spirit animal has been racking my brain about this for a few weeks now. I'm leaning towards going for a 1.8 vvt and an nb 6 spd, and aim for 300whp at first. My next dilemma is whether or not to build the valvetrain. Is it worth the extra ~1k to do it?
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Old 07-04-2016, 06:25 PM   #46
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Depends on how high you want to rev it.
I bought a head with supertech light doubles already installed for 450.
I would say yes. It's never a bad idea to overbuild.
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Old 07-04-2016, 06:28 PM   #47
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I'm thinking 7500 for most occasions and 8000 for when I need it? Nothing crazy.
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Old 07-04-2016, 06:38 PM   #48
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With close to 300hp I rarely find it necessary to even go to 7k. The drag strip is the only place I have felt the need to take it to 7,200. It just isn't necessary,it makes so much power in the 3.5-5k range.
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Old 07-04-2016, 06:40 PM   #49
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I see. Well I suppose I could always decide to build the valvetrain later down the road. What compression ratio would you recommend?
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Old 07-04-2016, 06:42 PM   #50
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Quote:
Originally Posted by thumpetto007 View Post
GUYS! The op has already changed his mind. He is going with a 1.8L VVT engine.

Just so we are all on the same page.
See post 29 from TODAY. Now he is even talking about v8. You, he and we, are not on the same page.
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Old 07-04-2016, 06:42 PM   #51
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~9.0 if you are on pump gas.
Higher if you have e85 available
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Old 07-04-2016, 06:45 PM   #52
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I do have e85 available. What are your thought on water/meth?
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Old 07-04-2016, 07:22 PM   #53
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Quote:
Originally Posted by Rshannon81 View Post
I do have e85 available. What are your thought on water/meth?

How available is e85? Like every station, or two in your city? How often do you get away e85 being available?

I am a huge fan of 84mm 8.6:1 Supetech pistons. You give up a bit having the less compression, but your safety margin on pump gas is much higher.

Water/meth is not really big here. Mostly because a good front mount intercooler works just as well at those power levels and it does not ever run out. Just make sure you have a very good intercooler core.
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Old 07-04-2016, 07:26 PM   #54
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Quote:
Originally Posted by Rshannon81 View Post
I have a road course somewhat close to me that I plan on running. And for the occasional street pull.
Try $15k+ if you want a reliable 400hp turbo miata on the track.

Also if you are just "thinking" about running on a road course then take your 200hp there and learn to drive. You will be surprised how fast you can be with 200hp on a road course.

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Old 07-04-2016, 07:35 PM   #55
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This thread makes me soft and flaccid.
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Old 07-04-2016, 08:07 PM   #56
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There's two pumps within 15 minutes of my house. It's pretty great.
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Old 07-04-2016, 08:49 PM   #57
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I'm like 15k deep in mine and I wish I would have gone v8.With that said. I still have more work to do. It'll be good when i'm finished but probably another 5k away
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Old 07-04-2016, 09:48 PM   #58
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Originally Posted by Girz0r View Post
This thread makes me soft and flaccid.
That's because MT is turning a new leaf. Two years ago, this guy would have been set on fire and left to live out the rest of his life on mx5.
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Old 07-04-2016, 09:50 PM   #59
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Quote:
Originally Posted by Rshannon81 View Post
I know slightly more than nothing. It's in the realm of 220. That's what virtual dyno is giving me. I'm pushing 15psi right now, granted I can't keep my boost curve flat with closed loop on the ebc for some reason. I suppose the biggest thing I want out of this build is to have a linear powerband. I hate getting pulled because my tiny turbo can't flow enough. The stock motor wouldn't like much more air thrown at it.
Doesn't mean dick. Virtual dyno said my car makes like 425 or something stupid.
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Old 07-05-2016, 02:45 AM   #60
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Doesn't mean dick. Virtual dyno said my car makes like 425 or something stupid.
Well maybe you should learn how to use the program properly. It gives somewhat accurate numbers with the right values.
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