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New guy post.... How reliable are turbo miatas?

Old 07-22-2008, 12:25 AM
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Originally Posted by Doppelgänger
Well, im putting down far more power than a torqueless RX8 and have no problems..... and that's WITH hard driving. Though, I blew up two 5-spd Miata transmissions... which have a lot in common with NA FC RX-7 transmissions...which were HORRIBLY WEAK.

But back to the original question... i don't think the NB 6 spd has nothing in common with the RX8

I did some research and it appears it was a modified NB tranny and was fragile in comparison. So scratch that same tranny bit.

off topic, but here

http://www.rx8club.com/showpost.php?...2&postcount=16
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Old 07-22-2008, 12:43 AM
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Originally Posted by naarleven
I did some research and it appears it was a modified NB tranny and was fragile in comparison. So scratch that same tranny bit.

off topic, but here

http://www.rx8club.com/showpost.php?...2&postcount=16
Mazda claims the Mazdaspeed MX5 (NB) six-speed transmission has shot-peen-hardened gears... Any bets its an identical trans to the standard Six-speed NB Trans??
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Old 07-22-2008, 01:17 AM
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I just beat up on my NB this weekend at 7 psi. Drove it 1 hr there and back as well after the race. Its running great, I love megasquirt. No dyno tune for me either, MLV 4 life.
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Old 07-22-2008, 11:38 AM
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Originally Posted by CryoSlash
I am sorry for the noob post, but with these miata's i will not lie that i am.
I am very aware of old car maintenance, and that is always the 1st thing i do when i get a car. Replace most hoses and gaskets. A modded POS engine won't hold up or keep up to a properly running one.

I don't know if anyone appreciates the older supras but here is mine.

That reminds me off the supra I had to let go of due to the wiring harness falling apart if you looked at it wrong.
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Old 07-22-2008, 02:26 PM
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Originally Posted by Cody Strife
How reliable is a turbocharged Miata... haha. Well to be honest, your better off with the highly reliable Eaton MP45 or Eaton MP62 superchargers. The reliably is through the roof, the power is predictable, all in all more bang for the buck...




(Hehehe, like driving a Import to a Union meeting (Did that, done that, do it again), I shouldn't be discussing superchargers on Miataturbo.net, unless its taking a **** on one)
Nah. But there is a reason more people choose turbos. Power and preference
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Old 07-22-2008, 02:43 PM
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Originally Posted by cjernigan
MLV 4 life.
spark, negguh.
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Old 07-22-2008, 02:54 PM
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Porsche has proven how reliable turbos can be......with that being said, I don't think there is a supercharger on record winning Enduros or even LeMans for that matter.
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Old 07-22-2008, 03:21 PM
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Originally Posted by Machismo
Porsche has proven how reliable turbos can be......with that being said, I don't think there is a supercharger on record winning Enduros or even LeMans for that matter.
don't tell that to the dallas crew.

flat, low torque curve > lots of torque and power.
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Old 07-22-2008, 03:26 PM
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Yep, Gary is very dissappointed in me.....
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Old 07-22-2008, 03:42 PM
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Originally Posted by Machismo
Yep, Gary is very dissappointed in me.....
i hear about it all the time from everyone, and when they find out my motor is 8.8:1 static, they tell me it will be a slug even though I'm not twisting a supercharger off boost. When you look at the money side on a blower, $4200 gets me 200whp at the most, with no intercooler that actually fits because I have a swap car, and I'd have a power card for a 99 when I would need it for a 1.6. My $4k in turbo would take me to well over 300whp, and its a bolt-on affair, exactly the way I wanted it.

I've heard nothing but horror stories about turbo miatas in Dallas...hopefully I can change that with mine or I'm going to be really, really pissed.
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Old 07-22-2008, 03:52 PM
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Maybe you should just keep your mouth shut and not tell them anything and all...let them assume what they will, it's more fun that way.

Or maybe you should just start cursing a random times when around them pretending something broke and make comments such as: "stupid piece of ****, will you last one day without breaking something?"
That will encourage your locals to stay slow for sure...
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Old 07-22-2008, 03:54 PM
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With you there on the horror stories....but 99% of the job is prep work and I think you've done your homework. Dealing with an issue before throwing the grenade might have saved a few failed local or two.
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Old 07-22-2008, 03:55 PM
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Originally Posted by Zabac
Maybe you should just keep your mouth shut and not tell them anything and all...let them assume what they will, it's more fun that way.

Or maybe you should just start cursing a random times when around them pretending something broke and make comments such as: "stupid piece of ****, will you last one day without breaking something?"
That will encourage your locals to stay slow for sure...
HaHa! Better advice for sure.
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Old 07-22-2008, 03:59 PM
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guys you're doing it all wrong: its all about the NAWSSSS
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Old 07-22-2008, 04:11 PM
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Originally Posted by hustler
i hear about it all the time from everyone, and when they find out my motor is 8.8:1 static, they tell me it will be a slug even though I'm not twisting a supercharger off boost. When you look at the money side on a blower, $4200 gets me 200whp at the most, with no intercooler that actually fits because I have a swap car, and I'd have a power card for a 99 when I would need it for a 1.6. My $4k in turbo would take me to well over 300whp, and its a bolt-on affair, exactly the way I wanted it.

I've heard nothing but horror stories about turbo miatas in Dallas...hopefully I can change that with mine or I'm going to be really, really pissed.
holmez you saw paul's absurdflow 2560 spooling at like 900 rpm, rite?
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Old 07-22-2008, 04:15 PM
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Originally Posted by y8s
holmez you saw paul's absurdflow 2560 spooling at like 900 rpm, rite?
after I realized that everyone who cried about it was using a blower, I drove a blown car and it dawned on me...it was super sluggish because they were turning a blower at 2000rpm.
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Old 07-22-2008, 04:42 PM
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Originally Posted by hustler
i hear about it all the time from everyone, and when they find out my motor is 8.8:1 static, they tell me it will be a slug even though I'm not twisting a supercharger off boost. When you look at the money side on a blower, $4200 gets me 200whp at the most, with no intercooler that actually fits because I have a swap car, and I'd have a power card for a 99 when I would need it for a 1.6. My $4k in turbo would take me to well over 300whp, and its a bolt-on affair, exactly the way I wanted it.

I've heard nothing but horror stories about turbo miatas in Dallas...hopefully I can change that with mine or I'm going to be really, really pissed.


EXACTLY! Let them keep their 4500$ 200whp car with **** poor EMS.. Just let them cry when you put 15 - 20 cars on them before you hit 60mph.
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Old 07-23-2008, 03:08 PM
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The supercharger guys are really stoked about the 150lbs of torque at just 2500 rpms and how it stays flat all the way after that. My turbo system is making 150lbs at 2500rpms too. Difference is mine keeps climbing to 200lbs at just over 3000 rpms before it starts to flatten out.

They don't really make torque faster. It just tops out quicker!
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Old 07-23-2008, 09:30 PM
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Originally Posted by cueball1
The supercharger guys are really stoked about the 150lbs of torque at just 2500 rpms and how it stays flat all the way after that. My turbo system is making 150lbs at 2500rpms too. Difference is mine keeps climbing to 200lbs at just over 3000 rpms before it starts to flatten out.

They don't really make torque faster. It just tops out quicker!
I'm the first to admit that supercharged cars are fun because power delivery is linear and ascends all the way up, acceleration faster and faster. Where we embrace the less exciting, but more desirable quadratic delivery, but faster in the long run typically.

I remember when I switched from a vortech blower to a turbo in my old vw. Even with 150whp more, the turbo car felt slower until ran a few cars.
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Old 07-24-2008, 12:21 AM
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Originally Posted by kotomile
dude your turbo is on the wrong side of the car.
15 psi my *** i believe it was markp who said past 20 psi oringing was useable but still overkill these are cast iron blocks guys and cast cranks. throw some rods billet oil pump gears and build the head and you can make enough HP to truly see the limits of the stuff we like to call transmisions and rear ends half shafts etc. Swap in a 6 speed and a good lsd with a 1.8 rear and keep wheelhop down and there is a drag miata at 616 whp that ran in the deep 10's with stuff like that. Yes he had a storker crank but mostly for more displacement than anything else. There is a enthusiast in japan who before he sr20 swapped his car kept 330 or so whp as a DD out of his 1.6.

I know these hp numbers dont seem like **** to a supra but please consider the fact that the miata wieghs 2500 lbs with you in it and a full tank of gas. Getting a supra that light is alil tougher. Even then miatas have been taken down to 1900 lbs even on many ocasions. The limits will all fall upon your $$ and your brain power. You will need both but some stuff will take more of one than another from time to time. GL man
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