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Old 04-14-2010, 04:39 PM   #1
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Hi I'm Juan. I live in Chicago and I am heavily interested in joining the miata game. I want to get an NB and turbo it. other that nothing really i guess. lol
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Old 04-14-2010, 04:41 PM   #2
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Welcome.

Miata is a great platform to start on, and the NBs are nice.

What are your goals powerwise?

Driven a Miata yet?
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Old 04-14-2010, 04:44 PM   #3
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thanks dude. don't want to push for too much power. maybe around 300whp. RWD is a pain in the *** around here but i have a winter beater so it's all good. I drove a buddie's once but never got really familiar with the car.
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Old 04-14-2010, 04:52 PM   #4
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Quote:
Originally Posted by nbwitstyle View Post
thanks dude. don't want to push for too much power. maybe around 300whp. RWD is a pain in the *** around here but i have a winter beater so it's all good. I drove a buddie's once but never got really familiar with the car.
To be honest, with the exception of boost pressure and fueling (and some other small things), the difference between 300whp and 400whp is pretty negligible when it comes to reliability. You will need a built motor, a six speed, and some sort of aftermarket LSD(or an rx7 unit) to reliably handle either if you beat on the car at all. Most people around here seem to shoot for 200-250whp as a reasonable goal for a street car. Horsepower is just a number anyway, drive a 250whp miata and see if thats enough for you
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Old 04-14-2010, 04:53 PM   #5
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Cool.

230whp in a Miata is a lot...equivalent to 300whp in most of today's more popular tuning platforms.

There is also a very distinct line at 250whp as far as investment, return, and reliability.

Miata rods (all motors), and the 5spd both become timebombs over 250whp. This means you'll need a 6sp and a built motor to push more than that. Also, most kits are suited to the 220-250whp range, so you'll be looking at a bigger turbo, possibly custom manifold and downpipe, and a 3" exhaust.

If you start with a '99 though, the head flows better (higher ports), and I'd consider those worth building. A few guys here are pushing a little over the 250whp mark easily, but are using some of the best engine management out there to avoid being at the ragged edge of timing and such, which could result in killing a motor.
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Old 04-14-2010, 04:57 PM   #6
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Originally Posted by Jeff_Ciesielski View Post
To be honest, with the exception of boost pressure and fueling (and some other small things), the difference between 300whp and 400whp is pretty negligible when it comes to reliability. You will need a built motor, a six speed, and some sort of aftermarket LSD(or an rx7 unit) to reliably handle either if you beat on the car at all. Most people around here seem to shoot for 200-250whp as a reasonable goal for a street car. Horsepower is just a number anyway, drive a 250whp miata and see if thats enough for you
Yeah for sure man. I would never push that stock motor past it's threshold. I'd do internals 100%, then run the turbo. Which size nets that kind of power? 30R? Which 6-speed do you guys swap? As far as a diff goes; I'd get a good diff. Not some 1/1.5 way helical bs either. A 2-way would be my route. 250whp in that light little car is probably a dream.

I want to start off with suspension and run good wheels/tires(maybe like 255-275 not sure). I assume a lot of people that run cheap **** have traction issues with significant power gains.
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