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Old 07-28-2009, 05:27 PM   #21
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Originally Posted by p51hellfire View Post
A wise man once told me you could build a 1.6 just as strong as a 1.8 but they have there own ad/disadvantages. I know I will build my 1.6 when I get to that point. Only because I have 1.6's available to me. Many will say do the 1.8 because you can get the 99 head which flows better and such plus the 1.8 puts down a little more power. In all honesty I think it's how you build it that matters.
You can build a 1.6l to make as much power as you could possibly want in our tiny little cars. So it doesn't matter.
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Old 07-28-2009, 05:29 PM   #22
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I have a spare 1.6L who wants to trade me for a 1.8L?
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Old 07-28-2009, 05:33 PM   #23
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Originally Posted by ray_sir_6 View Post
You can build a 1.6l to make as much power as you could possibly want in our tiny little cars. So it doesn't matter.
It does matter to tons of people hence this thread, It's all about What is easier to obtain IMHO
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Old 07-28-2009, 05:35 PM   #24
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Buy that 01 and build it.
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Old 07-28-2009, 06:01 PM   #25
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Originally Posted by ray_sir_6 View Post
You can build a 1.6l to make as much power as you could possibly want in our tiny little cars. So it doesn't matter.
You're ******* stupid.
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Old 07-28-2009, 06:05 PM   #26
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all I can say is..I am ditching my 1.6L and going for 1.8L setup. No replacement for displacement!!
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Old 07-28-2009, 06:23 PM   #27
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Originally Posted by aznDragonX View Post
all I can say is..I am ditching my 1.6L and going for 1.8L setup. No replacement for displacement!!
Yes there is and it called driver's skill.


I really suppose it is up to you. Either way, It is rare to see a 400hp Miata (which is beyond my comprehension) and both motors will get you there with the proper turbo, build, engine management etc. In the end it really doesn't matter because that 400hp mark is mostly a dream everyone on this forum and with a 1.6 or 1.8 Miata. Build what you want.

But then again some folks don't build for power. I have many reasons for building my M62 1.6. If I just wanted power I could get 400hp out of my motor with the correct turbo.

To the OP, to answer your question if you are goaling for 300 then go with either motor. Either way both motors kick *** because they have iron blocks, stock low compression pistons, good cams for boosting, oil squirters, and will run until you car rusts away or until california goes under water.
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Old 07-29-2009, 10:38 AM   #28
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You're ******* stupid.
What a creative and well thought out response.

When you don't have a good rebuttal, just call people names.

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Old 07-29-2009, 10:51 AM   #29
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Originally Posted by ray_sir_6 View Post
You can build a 1.6l to make as much power as you could possibly want in our tiny little cars. So it doesn't matter.
sure, if you don't mine 1500rpm of boost.
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Old 07-29-2009, 11:12 AM   #30
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sure, if you don't mine 1500rpm of boost.
1.6l rev higher stock than the 1.8l. The slight increase in displacement isn't gonna make it spool a bigger turbo much faster.

You'll be able to spin a 1.6l higher to make up for it. I prefer to spin 8k rpm, and make full boost around 4.5-5k rpm. Even with a GT2871R (good for 400-450whp) that should be easy to do. If you are going for over 500whp, get a LS*, cause 500whp (LS7 + mods) NA > FI 4cyl running tons of boost.

Savington, I am guessing you are running a 1.8l, and your sig says you have a 2871. At what RPM do you make full boost?
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Old 07-29-2009, 11:44 AM   #31
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hitting target boost at 5k is pretty pathetic and I wouldn't want to drive that **** on the track so I could wait for it to hit target on every shift.
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Old 07-29-2009, 12:02 PM   #32
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The justifications that people are providing for building a 1.6L seem to come from people who have not made high horse power with a 1.6L. It seems to me that what you guys think is that if a Miata can get X HP then it is the same as another miata with X HP. Overall HP should not cripple your power band. Like I said before, the relationship is directly inverse between the size of the turbo needed and the engine size. Getting a 1.8L will not only give you more torque in the low end, but require a smaller turbo. This will give you a much closer to linear power band.

I could strap on a damn GT3076R to a 1.6L and make an ungodly amount of HP, but it will be so unusable that it won't matter. I undertand that this is an extreme, but it just helps prove the point.

Also, dont' start feeding bullshit into this post about driver skill making it faster, because that is not what this was about. The question was simply whether or not he should build a 1.6L or 1.8L. Keep it that way.

It seems to me that too many people talking out of emotion rather than logic on this.
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Old 07-29-2009, 12:12 PM   #33
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Most of you loser queers are going to need the extra torque from the 1.8 to pull your lard-*** girlfriends around.
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Old 07-29-2009, 12:19 PM   #34
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FM has a direct comparison betwene a 1.6L and a 1.8L here with same specs other than engine.

http://www.flyinmiata.com/tech/dyno_...s_1.8_FMII.pdf
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Old 07-29-2009, 12:38 PM   #35
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The cost difference is at most 10% of the total for a fully built motor...and you lose nearly 20% power over a 1.8L.

Simple math says it's a no-brainer.
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Old 07-29-2009, 01:12 PM   #36
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Originally Posted by rharris19 View Post
The justifications that people are providing for building a 1.6L seem to come from people who have not made high horse power with a 1.6L. It seems to me that what you guys think is that if a Miata can get X HP then it is the same as another miata with X HP. Overall HP should not cripple your power band. Like I said before, the relationship is directly inverse between the size of the turbo needed and the engine size. Getting a 1.8L will not only give you more torque in the low end, but require a smaller turbo. This will give you a much closer to linear power band.

Also, dont' start feeding bullshit into this post about driver skill making it faster, because that is not what this was about. The question was simply whether or not he should build a 1.6L or 1.8L. Keep it that way.
Going back to OT. The dude wants 300hp. He can build an near linear powerband from both motors. If he truly wants a linear powerband then he will need a eaton or whipple to get to 300hp like BigGulp, Boig or Gibb.

Last edited by BracedEunos; 07-29-2009 at 04:59 PM.
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Old 07-29-2009, 06:14 PM   #37
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Originally Posted by hustler View Post
hitting target boost at 5k is pretty pathetic and I wouldn't want to drive that **** on the track so I could wait for it to hit target on every shift.
Not many corners would require letting the engine go below 5k rpm. And the whole point of full boost at 5k is to help with TRACTION on the exit of slower corners. Sorry, but spinning the tires out of a corner isn't the fastest way to do it, unless you like drifting.
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Old 07-29-2009, 06:19 PM   #38
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Quote:
Originally Posted by rharris19 View Post
The justifications that people are providing for building a 1.6L seem to come from people who have not made high horse power with a 1.6L. It seems to me that what you guys think is that if a Miata can get X HP then it is the same as another miata with X HP. Overall HP should not cripple your power band. Like I said before, the relationship is directly inverse between the size of the turbo needed and the engine size. Getting a 1.8L will not only give you more torque in the low end, but require a smaller turbo. This will give you a much closer to linear power band.

I could strap on a damn GT3076R to a 1.6L and make an ungodly amount of HP, but it will be so unusable that it won't matter. I undertand that this is an extreme, but it just helps prove the point.

Also, dont' start feeding bullshit into this post about driver skill making it faster, because that is not what this was about. The question was simply whether or not he should build a 1.6L or 1.8L. Keep it that way.

It seems to me that too many people talking out of emotion rather than logic on this.
I'm only going for 400-450whp on my 1.6l. I'm gonna use either a GT2871R or GT2876R, which shouldn't have any issues with spool and make plenty of power.
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Old 07-29-2009, 06:20 PM   #39
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Originally Posted by ray_sir_6 View Post
Not many corners would require letting the engine go below 5k rpm. And the whole point of full boost at 5k is to help with TRACTION on the exit of slower corners. Sorry, but spinning the tires out of a corner isn't the fastest way to do it, unless you like drifting.
um...I didn't have any problems with the loud pedal and 280wtq at 4000rpm at MSR.
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Old 07-29-2009, 06:37 PM   #40
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Originally Posted by ray_sir_6 View Post
I'm only going for 400-450whp on my 1.6l. I'm gonna use either a GT2871R or GT2876R, which shouldn't have any issues with spool and make plenty of power.

Wow.....just wow. You really are ******* stupid. I am not saying that because I have nothing else better to say. It is just that you can't argue rational thought with irrational people.
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