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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 12-31-2010, 04:57 PM   #21
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Originally Posted by 18psi View Post
Unless you're talking about in the rain/snow/ice there is just no way you should be getting loose in 3rd on 6psi. I'm at 15+psi on a 30r with **** tires and even my car barely steps out in 3rd when its dry (and even then only when its cold).
Cold but dry. I'll try to get some footage going

Who did your cat? If it was a weld in cat and a shop welded it you might want to check your flanges. The shop i used simply cut off the old exhaust and welded in the new cat reusing the old flange with the tiny 2.25" hole in the process. When it warms up i gotta open er up and drill out the hole on the flange.
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Old 12-31-2010, 07:24 PM   #22
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I'm running hankook r-s2 225-45-15s all around.

Also are you talking about this stuff? :P

Being that I have 225-50-15 RS2s and spin the wheels at 18ish psi, I think that your boost gauge is at least 10psi off.

Either that or your miata is some derivative of jtothawhat's. Preternaturally amazing.
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Old 12-31-2010, 07:25 PM   #23
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Hi everyone again im a noob on turbo miata. I did some research I got a FM2 kit with link for managment. I'm currently running around 180whp at 10psi. My goal is pretty simple, I want 250whp in quick spool and low psi, i wanna keep it all 10-14psi range. Now my question is, what should i upgrade? Or should i not use FM kit and go for something else.
I think it would be best if you kill yourself, and then buy your car a megasquirt.
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Old 12-31-2010, 07:54 PM   #24
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I think that your boost gauge is at least 10psi off.
Both, mechanical dash gauge and the 3bar map gauge in adaptronic both show the same thing.
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Old 12-31-2010, 08:54 PM   #25
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Both, mechanical dash gauge and the 3bar map gauge in adaptronic both show the same thing.
You have the most boost efficient miata on the plane.t
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Old 01-01-2011, 03:36 AM   #26
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You have the most boost efficient miata on the plane.t
or the crappiest set of s2s
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Old 01-08-2011, 03:39 AM   #27
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How are you guys mounting cams? I tried to take a video today but holding the cam with 1 hand while trying to shift etc results in bad video.
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Old 01-08-2011, 02:30 PM   #28
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How are you guys mounting cams? I tried to take a video today but holding the cam with 1 hand while trying to shift etc results in bad video.
http://www.ioportracing.com/Merchant...gory_Code=IOPP

--Ian
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Old 01-08-2011, 07:58 PM   #29
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Originally Posted by jchiu View Post
Hi everyone again im a noob on turbo miata. I did some research I got a FM2 kit with link for managment. I'm currently running around 180whp at 10psi. My goal is pretty simple, I want 250whp in quick spool and low psi, i wanna keep it all 10-14psi range. Now my question is, what should i upgrade? Or should i not use FM kit and go for something else.
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Sorry about the info. Yes it is a 1.8L with all bolt on high flow cat and 3" exhaust.
Since the place I live which is seattle, washington. There's not many tuning shop that knows how to tune.
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Originally Posted by jchiu View Post
mine is a 94 with stock engine, GT2560R turbo, I don't know what size of injectors but it comes with the FM kit. Anyways, who can help me tune the car, that's the issue. I don't mind spending money on tune and get hydra if nescessary
I'd do a few easy things like clean the filter and check/replace plugs with NGK 3033 with a .030" gap. That should set you up for tuning. When you did your dyno run, did they take AFRs? What were they?

A 94 1.8 @ 10psi should net you ~200-210rwhp. What kind of dyno was it? If you were on a Mustang dyno, then the 180rwhp sound right and would be 220-230rwhp on a Dynojet. If you're running the tune that FM put on it, it will be for 91oct gas at a higher altitude and will be very conservative. I went from 225rwhp to 250rwhp going from FM's tune from having a local tuner in Atlanta tinker with mine (93oct and 900ft altitude).
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