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300hp to 400hp upgrade

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Old 04-04-2017, 11:04 PM
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Originally Posted by alienmiata1
I made 300 maxing out an eBay turbo. It wasn't efficient. The lag was annoying. I switched to EFR and the power is way more useable. If you want 400hp you want an EFR. btw, have you ever driven a 400hp miata? It's kinda scary...
Pff I'm sitting here thinking 300 is scary
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Old 04-05-2017, 01:06 AM
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Talking fw power.
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Old 04-05-2017, 01:32 AM
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400 at the fw is still over 300whp. Have you ever driven a 300whp miata?
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Old 04-05-2017, 01:33 AM
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No, my current setup is around 300fw so the next upgrade is to around 400fw.
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Old 04-05-2017, 01:39 AM
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You're definitely going to want a better manifold than a cheap eBay one. You'll want a real turbo, either EFR or GT3076. You'll need the FM happy meal 2. You'll probably also want a brake upgrade. I suggest driving a miata with 300whp and decide if the monetary investment is worth it to you. Also remember that things tend to break often when you're at that power, so anything preventative that you can do you should such as a BE oil pump.
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Old 04-05-2017, 01:45 AM
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patsmx5 run 500hp with ebay cast manifold and a cheap ebay turbo.

FM2 maybe come to be a must, I have FM1 NIB.

BE oil pump will go in so is ATI and forged rods+pistons.

You say that 300whp will need less spending ?

Thanks
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Old 04-05-2017, 02:32 AM
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Pat also breaks things all the time.
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Old 04-05-2017, 02:36 AM
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Not the manifold...
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Old 04-05-2017, 09:59 AM
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Originally Posted by elior77
Not the manifold...
He does not use the eBay cast manifold any more. He switched to a CXRacing manifold.
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Old 04-05-2017, 10:01 AM
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Originally Posted by alienmiata1
You'll need the FM happy meal 2. You'll probably also want a brake upgrade. I suggest driving a miata with 300whp and decide if the monetary investment is worth it to you. Also remember that things tend to break often when you're at that power, so anything preventative that you can do you should such as a BE oil pump.
I have to agree with this part.

With great power, supporting mods will be needed.

Try driving a 300rwhp miata with stock non sport brakes....... Also add tires/wheels to that. I can spin my 15x9 225/45/15 R1Rs through 1st-2nd and I'm only close to 300, or at least not dyno confirmed.
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Old 04-05-2017, 11:20 AM
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Originally Posted by miataman04
Try driving a 300rwhp miata with stock non sport brakes....... Also add tires/wheels to that. I can spin my 15x9 225/45/15 R1Rs through 1st-2nd and I'm only close to 300, or at least not dyno confirmed.
Yup forgot about that. I can break my 15x9 245/45/15 RS4s loose at almost any time through 4th
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Old 04-05-2017, 11:26 AM
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Originally Posted by elior77
patsmx5 run 500hp with ebay cast manifold and a cheap ebay turbo.

FM2 maybe come to be a must, I have FM1 NIB.

BE oil pump will go in so is ATI and forged rods+pistons.

You say that 300whp will need less spending ?

Thanks
Pat also has a...second turbo.
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Old 04-05-2017, 11:30 AM
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Pat also changes things all the time, fixes things all the time, modifies things all the time, and does really crazy things all the time, none of which you seem to be capable of. If you are really foolish enough to compare your build to his, well then you're in for a surprise. You're missing the big picture here, and it's really sad

I mean....................you can't even seem to get your current manifold and turbo to seal. After multiple tries......lol
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Old 04-05-2017, 11:49 AM
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Skimps out on using a 12pt socket for head studs... wants to build 400hp miata

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Old 04-05-2017, 07:31 PM
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Originally Posted by miataman04
Try driving a 300rwhp miata with stock non sport brakes.......
Stock brakes are fine. As long as you dont need to stop fast more than like 8 times in a row.
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Old 04-05-2017, 07:34 PM
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I lol'd IRL
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Old 04-05-2017, 07:52 PM
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Originally Posted by elior77
I am going for an ebay turbo, what spec do I look for ?
I think the ebay 3076 with a 0.63 A/R would make 400 flywheel hp very easily. Probably 500 flywheel hp if you try to make the hotside parts flow decent. I have nothing against nice turbos, but you can make power with ebay turbos if you try. There's a lot of info in my build thread about how I built my setup if you want an idea of what went into making ebay turbos work reliably and make decent power.
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Old 04-05-2017, 08:40 PM
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VVT could help make up for a little bit of spool on a china charger, no?
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Old 04-05-2017, 10:18 PM
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Originally Posted by Leafy
Stock brakes are fine. As long as you dont need to stop fast more than like 8 times in a row.

That is a fair statement but that 9th time is scary. Nothing like slamming the brake the the floor and not slowing down Some decent pads, SS lines, and brake ducts would be a cost effective approach.
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Old 04-06-2017, 01:16 AM
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Drive a 70's fiat and talk about slowing down
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