Faeflora

iTrader: (2)

Like the title says- GT3071R @ 21psi.

93 octane

On the street in 5th gear it hits 20psi at about 3900RPM.

[IMG][/IMG]

yunvmyegt

iTrader: (3)

nice now try e85 and see what that does...lol

Faeflora

iTrader: (2)

That's what the hydramist is for. Have some issues with it now, will put it on soon. There are only a few public e85 stations in MD :(

miatamike203

There are no E85 places in CT. =[ Nice numbers tho man.

dgmorr

iTrader: (4)

Is your turbo still complaining after you removed the oil restrictor? Nice numbers.

Stealth97

iTrader: (5)

holy hell...

18psi

iTrader: (76)

That is some damn good power. A little peaky IMO but I'll bet it hauls ***

Faeflora

iTrader: (2)

It whines a little but it's doing just fine. I listened to a bazillion videos of ball bearing turbos on youtube and it sounds just like every other one. Since removing the restrictor, once again, it spins for about a minute after shut down.

dustinb

Congrats on the numbers, that is fantastic!

Faeflora

iTrader: (2)

It feels very smooth on the street. With the timing advancing as the RPM builds it just feels like it's accellerating faster and faster.

Some interesting information regarding my turbo and the tune:

We started the tuning session at base boost which was 15ish psi. That made 300hp and after messing with the VVT map, netted around 320hp. Going to 17ish psi pushed the turbo into it's efficiency range and took us to 370hp. As Phil mentioned in my build thread, going to 21psi only took us to 398hp. My AITs were not increasing at all so basically that indicated my **** just wasn't able to flow very well over 370hp. Consensus of those attending was that my log manifold was the bottleneck.

BTW whenever leatherface shows up---

Finally, I think at 20psi my car is actually faster than yours was in your videos.

y8s

iTrader: (8)

so what all the kids say about running beyond 7300 seems to make sense on your car.

leatherface24

iTrader: (10)

considering your power is dropping off after 7k, i wouldnt add the extra risk factor of 8k.

PatrickB

iTrader: (1)

nice power.

Faeflora

iTrader: (2)

Actuallllllyyyy IIRC it was holding on other pulls. If Phil sees this thread he can confirm.

leatherface24

iTrader: (10)

ok than **** what i just said lol

18psi

iTrader: (76)

Rev to 9k, on 40psi, 14.7afr or you're a *****

lordrigamus

iTrader: (14)

Well done. That's some power there.

PHILEMENT

Yeah the dyno was set to shut the run down at 7400 which is why it shows that major drop but it's actually not falling off like that. We set the dyno limit a little lower to ensure it records the run. Ideally it looks like 8K RPM would be best which is where we set the rev limiter (you don't want your peak power at your rev limiter).

I'm not a Miata specialist and I can't confirm the problems many warn about above 7K RPM. I raised the RPM limit based on customer request and it definitely takes advantage of it. There won't be any VVTi induced valve contact as I pull the cam advance down very early as it picked up much more midrange power that way. He does have upgraded valve springs and valves so as long as the sprocket itself doesn't come apart it should be reliable.

Thanks,
Phil Grabow

JasonC SBB

Congrats. Now if you could answer my PM.