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-   -   worth it to build a 1.6L (https://www.miataturbo.net/general-miata-chat-9/worth-build-1-6l-37512/)

ray_sir_6 07-28-2009 04:27 PM


Originally Posted by p51hellfire (Post 435122)
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.

Braineack 07-28-2009 04:29 PM

I have a spare 1.6L who wants to trade me for a 1.8L?

p51hellfire 07-28-2009 04:33 PM


Originally Posted by ray_sir_6 (Post 435788)
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

JayL 07-28-2009 04:35 PM

Buy that 01 and build it.

Savington 07-28-2009 05:01 PM


Originally Posted by ray_sir_6 (Post 435788)
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 fucking stupid.

aznDragonX 07-28-2009 05:05 PM

all I can say is..I am ditching my 1.6L and going for 1.8L setup. No replacement for displacement!!

BracedEunos 07-28-2009 05:23 PM


Originally Posted by aznDragonX (Post 435801)
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 ass 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.

ray_sir_6 07-29-2009 09:38 AM


Originally Posted by Savington (Post 435800)
You're fucking stupid.

What a creative and well thought out response.

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

:loser:

hustler 07-29-2009 09:51 AM


Originally Posted by ray_sir_6 (Post 435788)
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.

ray_sir_6 07-29-2009 10:12 AM


Originally Posted by hustler (Post 436028)
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?

hustler 07-29-2009 10:44 AM

hitting target boost at 5k is pretty pathetic and I wouldn't want to drive that shit on the track so I could wait for it to hit target on every shift.

rharris19 07-29-2009 11:02 AM

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.

hustler 07-29-2009 11:12 AM

Most of you loser queers are going to need the extra torque from the 1.8 to pull your lard-ass girlfriends around.

rharris19 07-29-2009 11:19 AM

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

gospeed81 07-29-2009 11:38 AM

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.

BracedEunos 07-29-2009 12:12 PM


Originally Posted by rharris19 (Post 436059)
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.

ray_sir_6 07-29-2009 05:14 PM


Originally Posted by hustler (Post 436051)
hitting target boost at 5k is pretty pathetic and I wouldn't want to drive that shit 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.

ray_sir_6 07-29-2009 05:19 PM


Originally Posted by rharris19 (Post 436059)
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.

hustler 07-29-2009 05:20 PM


Originally Posted by ray_sir_6 (Post 436263)
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.

rharris19 07-29-2009 05:37 PM


Originally Posted by ray_sir_6 (Post 436265)
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 fucking 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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