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Old 01-16-2007, 01:23 AM   #1 (permalink)
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Default Thinking about make an all motor miata

so as the title states i'm thinking about trying to make an all motor miata but i was wondering whats the fastest miata all motor wise taht anyones seen? and if anyone knows like HP/TQ ranges and whatnot much appricated guys

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Old 01-16-2007, 01:28 AM   #2 (permalink)
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Default Re: Thinking about make an all motor miata

Look at what Honda gets out of 1.8L, also look at what production motors do in racing trim.

If you played with everything and increased the revs you might be able to get to 250.

Why do you want to go NA on a B6/BP. These are turbo motors. If you want NA performance look into an F20C swap.
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Old 01-16-2007, 01:30 AM   #3 (permalink)
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there is a JDM miata running 300ps N/A, on a bp motor.
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Old 01-16-2007, 01:45 AM   #4 (permalink)
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Quote:
Originally Posted by turbored @ Mon Jan 15, 2007 11:30 pm
there is a JDM miata running 300ps N/A, on a bp motor.
Whose is it? I'm betting either a rich guy or a shop.
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Old 01-16-2007, 07:13 AM   #5 (permalink)
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300 on a bp?!?! that motor must have costs around the $15000.00 range if not more.
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Old 01-16-2007, 07:20 AM   #6 (permalink)
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Default Re: Thinking about make an all motor miata

If you build it................... it will run!!

http://todaracingusa.com/onemake?id=6



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Old 01-16-2007, 09:41 PM   #7 (permalink)
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Default Re: Thinking about make an all motor miata

just thought it would be different and pretty cool at the same time...btw i know they're boost motors i had a 1994 protege DX with the jdm GTX motor
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Old 01-17-2007, 03:29 AM   #8 (permalink)
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I'm building an engine right now, and hope to get 140+ rwhp and +75-100 shot of n20 and at this point it looks like I'm going to be about $5500+ into it not including engine management, so... bring your wallet.

I know I'll love it when its done, but I kick myself a little bit every time I see my buddies 95m for sale for less than that...

I dont have a lot of cash, but I've been slowly aquiring the parts since august... about $4k into it right now and nothing to show yet.
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Old 01-17-2007, 09:13 AM   #9 (permalink)
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Basically, take the worth of your car and multiply it several times. That's probably conservative as an estimate. The long and short of it is that you can build a very powerful B6/BP, but:

1.) It will cost FAR more than a stock motor with some sort of forced induction

2.) For the same amount of money as most FI kits, it will make a lot less power (see point 1)

3.) At a certain power level, you'll have to decide whether or not this engine will be a street engine or track/strip.
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Old 01-17-2007, 10:45 AM   #10 (permalink)
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Default Re: Thinking about make an all motor miata

yea i'll prob just b oost it but was wondering about the numbers and what not

thanx for the help
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Old 01-17-2007, 11:16 AM   #11 (permalink)
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Quote:
Originally Posted by disturbedfan121 @ Wed Jan 17, 2007 11:45 am
yea i'll prob just b oost it but was wondering about the numbers and what not

thanx for the help
You're very welcome. From what I've seen, for example, it'd take about $7-10k to reach 150rwhp, depending on how much work you do yourself and how well the resulting car is tuned. Dyno time is VERY necessary, but not cheap.
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Old 01-17-2007, 11:17 AM   #12 (permalink)
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I dont care. Im building an all motor car after mines gone. Im not looking for big numbers power wise anyway.
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Old 01-17-2007, 11:32 AM   #13 (permalink)
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Quote:
Originally Posted by leatherface24 @ Wed Jan 17, 2007 12:17 pm
I dont care. Im building an all motor car after mines gone. Im not looking for big numbers power wise anyway.
I'd like to...I just don't have the money
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That's a really bromantic dream; miatas, fishing, Bryan... Does it get better?
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Old 01-17-2007, 04:19 PM   #14 (permalink)
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I'm doing little n/a mods till i can afford to boost.
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Old 01-17-2007, 05:07 PM   #15 (permalink)
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Quote:
Originally Posted by Miazda318 @ Wed Jan 17, 2007 5:19 pm
I'm doing little n/a mods till i can afford to boost.
Do so if you wish, but those mods may be things you'll be selling later. The I/H/E mods that work best for an N/A application are not the same as those that work for a turbo'ed car, for example.
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That's a really bromantic dream; miatas, fishing, Bryan... Does it get better?
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Old 01-17-2007, 05:22 PM   #16 (permalink)
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Default Re: Thinking about make an all motor miata

My build cost about $5500.00 w/ Dyno tuning included and when we add cams which would give us 170 RWHP I would say maybe $1500 hundred with a Dyno tune you are looking at $7000.00 total. Yes FI is very fast but NA is a totally different animal. I've been pounding on my car for the last 2 years with no puff of smoke and I can run it hard all day long. Remember with our light weight Miata its all about gettting power to the ground and accelerating forward.

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Old 01-17-2007, 08:30 PM   #17 (permalink)
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Quote:
Originally Posted by 4 Throttle Tuning @ Wed Jan 17, 2007 7:22 pm
My build cost about $5500.00 w/ Dyno tuning included and when we add cams which would give us 170 RWHP I would say maybe $1500 hundred with a Dyno tune you are looking at $7000.00 total. Yes FI is very fast but NA is a totally different animal. I've been pounding on my car for the last 2 years with no puff of smoke and I can run it hard all day long. Remember with our light weight Miata its all about gettting power to the ground and accelerating forward.

Jimmy
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I'm glad you chimed in because I was about to do so for you. I think 180whp, if not more, is very possible. Not cheap, but most definitely under 10,000$.
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Old 01-17-2007, 09:16 PM   #18 (permalink)
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Horsepower is easy to come by even on a Normally Aspirated Miata with Bolt in cams and a stand alone. Bryan is correct it can cost up to $10.000 depending on how much you do yourself. Even though my car is built for autox and moving more towards time attack/circuit I learned a lot at the dragstrip last Friday when we hit 13.9 in the 1/4. The last two runs we lined up against a Dodge SRT Turbo that had some mods like a down pipe. The Dodge smoked us both times with a 13.7 and 13.6. So even though he had much more HP it still takes time for him to catch up. What was interesting was that we had him on both runs in the 60',330',660' and 1/8 mile. Even my good friend Bob Palmblads old 280 RWHP supercharged Miata I can stay with him with only 150 RWHP up to 60 MPH. Bob's car did a 12.7 1/4 mile but if you build an all motor Miata I honestly believe that it can go just as fast. Only time will tell. Even for FI to go faster than 13 seconds it will cost some serious $$$. In the near future when I get to line up against some Turbo and Superchargers on a circuit track it will show how I stack up because I should be much slower than them. I know that it is going to take alot to stay with them because they are very fast. Try driving an IRTB, Turbo or SC and you will know that they all have their own benefits. To give you an idea I would never go FI again on a Miata but Bob Palmblad even knowing what my car does in competition he would still go the SC route because FI is fast no matter how you look at it. Sorry for it being lenghty but just wanted to share my experience.

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Old 01-17-2007, 10:06 PM   #19 (permalink)
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Default Re: Thinking about make an all motor miata

Why even bother NA tuning the stock motor? Throw in a F20C and be done with it.

Now I can see the point in ITBs, even on a stock motor. They make driving more enjoyable. But going insane and doing the works, or even $5000 in NA mods looks to be a total waste. If you are going to spend that much money on the motor you might as well match it tuning the suspension and improving the braking. It would also be wise to strengthen an reinforce the chassis.

The point that im trying to make is that, unless you are going for acceleration times, the entire car needs work. If you are going to racing-spec out the motor your stupid not to do it to the whole car.

If you really dislike your car so much that you are willing to spend $20,000 improving it, why not sell it. Use the money you would have wast-erhm, spent tuning it to buy something like an FD3s. After a couple thousand in reliability mods they are good platforms. If you ever drive one, they feel like a pissed off MX-5. The crisp turn in, good balance and mazdaness is all there. Besides their performance they are currently gaining value.
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Old 01-18-2007, 11:24 AM   #20 (permalink)
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Quote:
Originally Posted by 4 Throttle Tuning @ Wed Jan 17, 2007 10:16 pm
I learned a lot at the dragstrip last Friday when we hit 13.9 in the 1/4.
By the way, Jimmy, I meant to congratulate you for the VERY impressive performance =D>

I hope you haven't taken all of the talk on M.net personally. Panda Trueno seems to be out of line, and several of us has tried to correct him. Even so, I have absolutely nothing personal against you (or even him, for that matter) and congratulate you for really achieving some impressive results!
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That's a really bromantic dream; miatas, fishing, Bryan... Does it get better?
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Old 01-18-2007, 11:37 AM   #21 (permalink)
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BTW...I just realized that this topic should not be in General Chat. I'll move it
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Old 01-18-2007, 12:09 PM   #22 (permalink)
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Quote:
Originally Posted by EndlessCorners @ Wed Jan 17, 2007 11:06 pm
Why even bother NA tuning the stock motor? Throw in a F20C and be done with it.

Now I can see the point in ITBs, even on a stock motor. They make driving more enjoyable. But going insane and doing the works, or even $5000 in NA mods looks to be a total waste. If you are going to spend that much money on the motor you might as well match it tuning the suspension and improving the braking. It would also be wise to strengthen an reinforce the chassis.

The point that im trying to make is that, unless you are going for acceleration times, the entire car needs work. If you are going to racing-spec out the motor your stupid not to do it to the whole car.

If you really dislike your car so much that you are willing to spend $20,000 improving it, why not sell it. Use the money you would have wast-erhm, spent tuning it to buy something like an FD3s. After a couple thousand in reliability mods they are good platforms. If you ever drive one, they feel like a pissed off MX-5. The crisp turn in, good balance and mazdaness is all there. Besides their performance they are currently gaining value.
Different strokes, man. While I think the f20C swaps are down right incredible, If I wanted a honda I still would have bought one. Honestly I cant stand them... Just and emotional thing I guess. Just like If I wanted a V-8 I would have bought a mustang or corvette, or a rotarty an RX-7 or 8 (well ok I do want one of those). I'm spending the cash because I love it, If I hated it I'd find something else to modify.

A big reason I like mazdas is they are not on the honda bandwagon. I have owned several honda's in the past and each one was unreliable crap, so that has a lot to do with it.
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Old 01-18-2007, 11:07 PM   #23 (permalink)
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Well I guess I might be the closest one to what yall are talking about. I have a fully built 1.6L which is now a 1.7L. I am currently in the progress of trying to get a stand alone for my setup to maximize potential but it is running pretty good so far with the Fuji Kit.

Engine mods:
254 degree cams intake and exhaust
Stainless 1mm oversized backcut valves
Titanium valve springs and retainers
Full Port and Polish
Wiseco 11:1 Pistons
Fuji Light weight flywheel
Spec Stage 1 Clutch
Fuji IRTB kit w/ piggy back

All of this is connecting to a 99 rear end with a Torsen.

Overall I have spent about $8000-$9000 on everything that I just mentioned.

The car runs strong right now but will definately kill with a stand alone and some dyno tuning. I haven't been able to dyno it yet. I just recently put on my Fuji kit. I am expecting atleast 180 to the wheels. I thought about going turbo but I was shooting for a JDM style all motor lightweight racer. I had 3 AE86 and I love my miata more especially with the ITB's on it.

When I get it dynoed I will post the results so everyone can see what you can do all motor, even with a 1.6. There are 20v hachi's out there with 250+ whp at 8,000+ on the 4AGs. I wanted to see what I can get out of an all motor 1.6 to keep weight down and stay true to the cars design. A nice small responsive motor that can throw the car around without any problems.

Sorry about rambling, but what I'm trying to say is FI is overrated. It is the in thing to do, however, if done properly an FI can respond just as well if not better. After extensive research when I was in the deciding stage of all motor or FI, I did spreadsheets with all the prices and totals to compare. Any way I looked at it a proper FI setup would cost way more than my NA motor.

*Just my two cents but I will keep yall posted.
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Old 01-18-2007, 11:17 PM   #24 (permalink)
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What you're doing ^^^ would be the way to go for NA, except I'd have gone with even higher compression, like 12-12.5:1. Maybe some even more aggressive cams, too. I'd also do a 6-speed with a short-ass rear-end, not sure what's available, but something in the 4.3-4.8 range.

The cool thing about NA is total responsiveness...and sound Turbo offers the most power, but you have to deal with lag. Superchargers don't make as much power as Turbo, but are usually very linear and torque is BOOM! there. I think I high-strung NA motor could be good for racetracks because it's linear, but you don't have huge amounts of torque or sudden tremendous torque increases (ala turbo) that can shake you out of a turn.
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Old 01-18-2007, 11:31 PM   #25 (permalink)
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Well I don't have my numbers yet, but I'm expecting a decent amount of torque. I was actually gonna put in the 6 speed when I had my motor done but I ran out of money. It was either the rear end or the tranny. I chose the rearend. I didn't want to go to aggressive with the cams because I wanted to keep the car very streetable. I still need to get some new cams gears and am planning on an oil cooler kit as well. The higher than 11:1 compression pistons were out of my price range. Wiseco makes a 14:1 piston also, but I would only go that extreme with a pure track car. I'm pretty sure that a super high compression motor with more aggressive cams would lay down more than 200 easy.
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Old 01-18-2007, 11:57 PM   #26 (permalink)
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There is more to a car then its engine. :wink:
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Old 01-19-2007, 02:02 AM   #27 (permalink)
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There's also more to grammar....like "than" not "then." LOL Sorry dude, just picking.

I plan to swap to a 1.8 after I am working full-time again, and down the line shoot for 170rwhp N/A. It would probably be a lot easier if I could find a 99-00 head and build from that, but if I end up picking up a BP from an Escort or Tracer LTS, I won't be too broken-hearted.

My goal, all in all for my car though, is to focus on the fun factor, b/c to me, that is all that matters. Yes, money is important and people should build/spend within their financial limitations, but there is no dollar value to "fun" or the smile on your face when you make the fastest time at a local autoX, pull over 1g on a skidpad, or outrun your buddy's Datsun 510 on a local back road
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Old 01-19-2007, 02:58 AM   #28 (permalink)
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^ You have no idea how messed up my brain is today. Thanks though.
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Old 01-19-2007, 02:42 PM   #29 (permalink)
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LOL
Its all good man. I've been trying to adjust to sleeping from 7am until mid-afternoon b/c of the job I'll hopefully be starting soon. And let me tell you, sleeping until 3pm is quite impossible w/o the help of a fair amount of New Castle or something alcoholic.
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