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Old 03-19-2009, 01:36 PM   #41
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Bah, nevermind. I'll just keep my mouth shut. You guys are used to dealing with 12-16psi, which I'm just learning. I've been used to 25-40psi with DSMs.

I just picked up a 99 miata which I'm planning on putting an FM Hydra kit onto, but that's where it'll end.
40 psi at half the mass flow rate even at 75% efficiency is still half the mass flow rate.
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Old 03-19-2009, 01:38 PM   #42
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probably a reason he upgraded his t25 before going 25-40psi :P
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Old 03-19-2009, 01:40 PM   #43
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probably a reason he upgraded his t25 before going 25-40psi :P
I started with a 14b thank you very much.
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Old 03-19-2009, 08:04 PM   #44
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Not tuning the car is foolish. First you'll enjoy the power, then you'll appreciate the drivability more than the rubber laying qualities.
Do you think I am going to have problems with the base map? As delivered I am going to make enough power to spread my rods all over the street if I'm not careful. If I'm not tuning for more power what would I be tuning for? I guess if it is running overly rich then I could pull some fuel and if the timing is to flat then add a little I guess but wouldn't I pick up more power?

Thanks for the info at Hallett. Sounds like fun but our training schedule is insane right now. I can't tell if I'll get some leave around that time.
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Old 03-19-2009, 10:04 PM   #45
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"base map" does not mean "daily driver map" for sure.

it's good enough to get you started and drive the car if you need to but it's not something you'd want to blindly drive around on.

in a nutshell, how do you know you'll be too rich or too lean or too advanced or too retarded without tuning something? it's very unlikely you're going to be "close enough" right out of the box. I'd bet a buck on that.
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Old 03-19-2009, 10:16 PM   #46
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"base map" does not mean "daily driver map" for sure.

it's good enough to get you started and drive the car if you need to but it's not something you'd want to blindly drive around on.

in a nutshell, how do you know you'll be too rich or too lean or too advanced or too retarded without tuning something? it's very unlikely you're going to be "close enough" right out of the box. I'd bet a buck on that.
Well.. you do know you're going to be retarded on a basemap. Ha... Ha... Ha...
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Old 03-20-2009, 02:04 AM   #47
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you probably won't "have problems" but you won't know how good it could be so you won't realize why its worth the cash until its paid for and done. Take the car to FM for tuning, I'm not recommending this **** for my health.
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Old 03-20-2009, 03:04 AM   #48
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Ahh, I love the maturity level. Should we start with the mother jokes now?
Oh WOW! You ******* know this guy is a noob and doesn't know who Hustler is.. Just wow. Thats like being in a prison shower and seeing a big angry looking dude with a huge boner eye balling you, and you ask him "What, your gonna **** me in the *** now!?"

Should we go ahead and start a list of who wants what when the piston rods escape the confines of the crankcase? I'm not sure what I want, I will get back to you.
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Old 03-20-2009, 03:21 AM   #49
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Oh WOW! You ******* know this guy is a noob and doesn't know who Hustler is.. Just wow. Thats like being in a prison shower and seeing a big angry looking dude with a huge boner eye balling you, and you ask him "What, your gonna **** me in the *** now!?"

Should we go ahead and start a list of who wants what when the piston rods escape the confines of the crankcase? I'm not sure what I want, I will get back to you.
People without a turbo on their car should not be talking so much **** methinks.
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Old 03-20-2009, 03:34 AM   #50
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Old 03-20-2009, 03:34 AM   #51
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People without a turbo on their car should not be talking so much **** methinks.
Me thinks you should kiss my *** When was I talking ****? Just because I don't yet have a turbo on my Miata doesn't means I cant have a valid opinion. 12psi on a 3071 on a stock bottom end, with a base map and a no need to tune attitude isn't a good mix of things in my book. It may hold up for a while, but its still not something I would consider doing, especially with the rate people have been losing engines with smaller turbos and lower boost, and actual "good" tunes.
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Old 03-20-2009, 04:05 AM   #52
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oh I never said I didn't agree with you...
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Old 03-20-2009, 04:31 AM   #53
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Ah, ok then. Well if you people want to start a paypal fund to help me get boosted, you are all more than welcome to do so. Then I can talk all the **** I want, right? $20 a head, anybody? Help a poor fella out. In return I can grant you all the knowledge of all of the worlds books, and great blessings of my native American people...
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Old 03-20-2009, 10:04 AM   #54
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This is miataturbo.net, not sweden.
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Old 03-20-2009, 12:56 PM   #55
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Me thinks this guy should be more concerned about whether the equipment he's buying will allow him to run a steady 12#. I'd much more concerned with being able to control boost with the FM setup than I am about the tune.

The base maps from FM are much better than people on this forum think they are. Jeremy has tuned enough cars for FM customers with different setups to have a very good starting point. Having ran a stock map from FM and then having it tuned, the maps weren't much different. The base map was what my tuner called a conservative tune and would be fine to drive with for the life of the car. It's not like we're talking MS, where a bunch of amateurs tuned their **** on the street, then posted the maps on the internet and he's just choosing one.

As for the 12# on the stock bottom end, I did it on a bigger turbo. My engine survived, but common sense says it was a ticking time bomb. The OP needs to accept that.
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Old 03-21-2009, 06:55 AM   #56
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Me thinks this guy should be more concerned about whether the equipment he's buying will allow him to run a steady 12#. I'd much more concerned with being able to control boost with the FM setup than I am about the tune.

As for the 12# on the stock bottom end, I did it on a bigger turbo. My engine survived, but common sense says it was a ticking time bomb. The OP needs to accept that.
Yes it is a concern, Jeremy warned me about the 3'' when I asked about boost creep. He said it would be wiser to keep the factory exhaust but I couldn't resist. "my precious" The wastegate spring will be a 9psi. I am just hoping that it dosen't creep past 12 before I get to redline. A coulple of ideas that came up on another post was to limit RPM some and/or to build a restrictor plate for the exhaust. These ideas are to limit total power and rpm to aid the rods and to limit pressure differential that can exaggerate boost creep. These are possible solutions to problems that I do not have but I have considered.

You have a set up very much like the one I purchased. How did yours act?
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Old 03-21-2009, 01:00 PM   #57
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Originally Posted by DOHCPanther View Post
You have a set up very much like the one I purchased. How did yours act?
My old setup had a few big differences. I feel those differences are part of the reason why I didn't have any of your concerns. For starters, I use an external wastegate to try and avoid the boost creep issues that you will have. I also ran a full 3" with a cat to ensure that the easiest path for the exhaust to leave the car, was through the external wastegate that I just dumped when it was open. Lastly, I have a good friend who has a shop that does tuning and fabrication. Unlimited dyno time and an experienced person to run my stupid ideas across is priceless, especially since I trust him and follow his advice.

I ran the car on the street at 6-7# for awhile, even ran a 13.3 at the drag strip. Ran it at 13# for awhile and even 18# for a bit. Just remember that the car will feel slow and you will want more. I originally only had plans to run it at the 6-7# level and be happy with it. The car was slow. That led to more and more. Eventually I just said the hell with it and kept bumping it up. When it was at 18# it started to really feel quick. I consider a stock miata engine a cheap disposable part. If you do the same you're going to have some fun with this. Remember, if you blow the engine you don't have to go through the hassle of trying to selling the damn thing when you pull it.

Last edited by JayL; 03-22-2009 at 05:09 AM.
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Old 03-21-2009, 09:48 PM   #58
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Where is that shop and what is the name? The more the tuning subject comes up the more I wonder if I will need it.

Here is the reasoning. I will be making right at the limit of the stock internals. The Hydra will come with a very conservative tune. The tune (I'm guessing) will be very rich and not much timing. This will pull power and reduce the chance of detonation. I am thinking this is very good for my situation. If I go pay for someone to tune it what would I really get. I don't want more power at this point and I need something safe on the engine.
Lethal Injection in Atlanta Ga. Oh and they are currently helping/working with hydra make a ECU for a newer S2K with the throttle by wire setup.
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Old 03-21-2009, 11:14 PM   #59
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I consider a stock miata engine a cheap disposable part. If you do the same you're going to have some fun with this. Remember, if you blow the engine you don't have to go through the hassle of trying to selling the damn thing when you pull it.
I hope to keep this one in good shape. Depending on if I buy or build I will use it as a core or as the foundation.
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Old 03-22-2009, 12:36 AM   #60
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Anyone know the waste gate port size on the 3071? Surely there is room to port it a bit, and weld on a larger puck, which would reduce likelihood of creep.
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