Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
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-   -   Holy Toyota! (https://www.miataturbo.net/insert-bs-here-4/holy-toyota-47509/)

inferno94 05-18-2010 09:22 AM

Holy Toyota!
 
I didn't realize such little boost (claimed 11psi) could make so much power. "it could use 900's" injectors?!

High powered scion

Maybe it's just me not knowing much about Toyota motors but that seems like alot. Truthfully idk what size motors a TC has but I'd think a 1.8 maybe a 2.4 which I could see making these #'s.

neogenesis2004 05-18-2010 09:36 AM

My TC, all TC's, have a 2.4L 4cyl.

ArtieParty 05-18-2010 10:08 AM


Originally Posted by inferno94 (Post 574422)
I didn't realize such little boost (claimed 11psi) could make so much power. .

You do realize that boost (in psi) is different for every turbo right? 11psi on a 2554 is not the same as 11psi on a 3071. This guy never says in the thread what turbo he's running. But what he does say is that he's had head work done and he's using meth. I don't see why these numbers wouldn't be possible at all on a 2.4l.

saint_foo 05-18-2010 10:08 AM

I thought he was running a lot more boost, like 19lbs from the first post (2nd paragraph, 3rd sentence). He was asked on page 3 if the boost levels were the same, he said yes.

Plus, wasn't he running meth with the tune?

Still quite impressive. I was talking to one of my Subaru buddies and they had a WRX (2.5 liter) on the dyno yesterday at TurboXS. Put down 500whp (Dynopack dyno) at ~23lbs of boost, IIRC. So, similar displacement (2.4 liter vs 2.5), but the Subaru's motor is slightly built. However, the charge has a longer distance to travel thanks to the layout of the exhaust and turbo location....

turotufas 05-18-2010 10:17 AM

TC motors must be badass. That's a high number compared to other 2.4 Liters. I know 240's can go to about 300 at 11 psi.

neogenesis2004 05-18-2010 10:18 AM

You have to consider that the engine tech is much newer than the 240 too.

Full_Tilt_Boogie 05-18-2010 10:20 AM

Not impressed.

Bryce 05-18-2010 10:21 AM

This talk of X power at Y boost without mentioning the size of the turbo needs to stop.

I have a Civic friend who made 300whp at 6psi on a 1.6. But that was with an SC61.

Full_Tilt_Boogie 05-18-2010 10:22 AM

1 Attachment(s)
Honda B16 (1.6 L) on 19 psi
Attachment 197514

turotufas 05-18-2010 10:23 AM


Originally Posted by neogenesis2004 (Post 574458)
You have to consider that the engine tech is much newer than the 240 too.

Yes and power loss over time.

Full_Tilt_Boogie 05-18-2010 10:29 AM

Anybody ever driven a tC? They are heavy and slow, and the engine is a souless shit stain of an engine.
Its not a good engine, its a low reving, low performance, economy engine.
Making 400hp on 18 psi with with what is likely a very large turbo is not impressive at all for a 2.4L engine.

ZZZYZZZ 05-18-2010 11:11 AM

417whp on FWD? That must be interesting.

saint_foo 05-18-2010 11:22 AM


Originally Posted by ZZZYZZZ (Post 574518)
417whp on FWD? That must be interesting.

It's still no SRT-4

The SRT-4, driven properly, can actual travel back in time. It can cause a tear in the space-time-continuum.

It's that fast.

Faeflora 05-18-2010 11:47 AM

Well if it can do that on a stock engine than it is pretty damn badass. Even if it is booaring our engines aint that great without the power to weight. Wow i'm a rapper

Braineack 05-18-2010 12:00 PM

1.6L miata makes 90rwhp. Add 10psi, assuming 10hp per psi = 100 more hp. Then 1.6L now makes 190hp.

2.4L makes 160hp. add 10psi, assuming assuming 10hp per psi = 100 more hp. Then 2.4L now makes 260hp.


cool huh?

Sparetire 05-18-2010 01:10 PM

The idea of a big lazy turbo that makes tons of power with a low pressure ratio seems to come up periodically in any car community. For awhile you saw a decent number of guys in various apps going to low AR T4 setups (like .54 with a pretty mild wheel) and then just running less boost than they would with a T3. The low IATs/backpressures are tempting and the psychology is similar to the idea of a built engine: If I have this thing capable of 8 bajillion HP and I only make 350, then I am bullet-proof. And a T4 setup right will actually spool fairly well in relation to say a 35R. Honda guys do this type of thing all the time because they have a pretty high ceiling to work with and are often on pretty ghetto setups that really need to be protected from detonation. A big lazy cool turbo will make the power "safer" at the expense of some response that lots of guys dont really give a crap about anyway. Lag is meaningless in a straight line race as long as you can drive even sorta well.

neogenesis2004 05-18-2010 01:28 PM

The thing is, a big lazy turbo on a 1.6L miata isn't so lazy on a 2.4L TC.

That said, were I to turbo my TC I would just want a smaller turbo, like a Evo8 16G or something. Like the one I sold Splitime. Something to provide instant on demand power.

FRT_Fun 05-18-2010 01:42 PM


Originally Posted by neogenesis2004 (Post 574628)
The thing is, a big lazy turbo on a 1.6L miata isn't so lazy on a 2.4L TC.

That said, were I to turbo my TC I would just want a smaller turbo, like a Evo8 16G or something. Like the one I sold Splitime. Something to provide instant on demand power.

But no matter what there is still going to be a small amount of lag, and don't even get me started on boost threshold. Waste of time IMO. What happens when you miss a shift and go to 5th instead of 3rd?!?!? You need that power at 1200rpm that's what. heheh.


If I was going to turbo a 2.4L it would be a Nissan Stanza. /thread.

neogenesis2004 05-18-2010 01:47 PM

You are a bag of dicks /thread

y8s 05-18-2010 01:58 PM

GT2876 would work great on a scion *cough*

neogenesis2004 05-18-2010 02:00 PM

There is a kit or two that come with that as well. If that is a muffled attempt at a sale. I'll give you $2, possibly more once I get my first paycheck from the new job. Then again, I've been contemplating selling it once the CRX is back up and running.

Sparetire 05-18-2010 02:12 PM


Originally Posted by neogenesis2004 (Post 574628)
The thing is, a big lazy turbo on a 1.6L miata isn't so lazy on a 2.4L TC.

That said, were I to turbo my TC I would just want a smaller turbo, like a Evo8 16G or something. Like the one I sold Splitime. Something to provide instant on demand power.


Having owned a 2.4L with a Evo 3 16G(which is basically the same as a 'big' 16G that you hear about), I can tell you that the response was amazing, and that I really wished I had at least a 20G. The boost creep issues were insane. Like holy shit I can't stay below 20psig insane. And that was with a fully ported out wastegate passage. I spent hours with a die-grinder not just enlarging the hole itself, but also allowing more range of motion with the flapper and actually changing the shape of the wastegate passage itself, which was then matched on the gasket and the large E3 02 housing I was using. I still had to do a ghetto/custom TiAL 38MM to get things under controll.

Response is great, its fun. But unless you are autoxing, it is IMHO given too much importance. Something like a 3071 is going to be tons of fun on a 2.4L and it will be better behaved, make more power more efficiently, and have tons more room if you need it in the future. If you turbo the TC I would go with a 3071 or 3076 ish size snail personally.

y8s 05-18-2010 02:16 PM


Originally Posted by neogenesis2004 (Post 574655)
There is a kit or two that come with that as well. If that is a muffled attempt at a sale. I'll give you $2, possibly more once I get my first paycheck from the new job. Then again, I've been contemplating selling it once the CRX is back up and running.

i hear crx are the bomb with 550 cc injectors and ati super dampers.

neogenesis2004 05-18-2010 02:24 PM

I'm not going to....most likely I'm going to sell it.

I'm starting a new jawb soon...hopefully. Already signed a contract award contingent offer. Will give me a significant raise (almost 50%). I just bought a super fresh, brand new, ATK reman motor for my CRX HF to get it back to DD duty. Stole it for $850 shipped with no core charge. They had it on overstock/deadstock. I will likely sell the TC once the CRX has inspired full confidence into me. I'll save 270/mo on the car payment, like 100/mo on insurance, and like 200/mo on gas because the HF sips gas even with my fat ass in it. The plan is to put as much as possible to pay off my 80k in student loans in the next 4-5 years. Which will be entirely doable at my upcoming salary.

Back on topic... Anyone want to buy a White 07 TC? 91K nearly 100% highway miles. Nothing but Mobile1 full synthetic 0w20 its whole life. Only $8.5k :)

pschmidt 05-18-2010 02:45 PM


Originally Posted by y8s (Post 574653)
GT2876 would work great on a scion *cough*

Internally or externally gated?

neogenesis2004 05-18-2010 02:50 PM

ext with a .86 housing of course

WonTon 05-18-2010 02:58 PM

the clutch kit for a tC in my garage needs to be sold *cough*

neogenesis2004 05-18-2010 03:03 PM

scionlife.com, I'm probably the only person here with one and I ain't buying it :P


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