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Gt2560r 300whp Flyin Miata / flexfuel megasquirt

Gt2560r 300whp Flyin Miata / flexfuel megasquirt

Old 10-16-2018, 10:52 PM
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Default Gt2560r 300whp Flyin Miata / flexfuel megasquirt

My 300whp NA (virtual dyno).

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20psi with as linear as a torque curve as I could get.
Straight flat roads with fresh pavement, this is the avg number from many pulls. Assuming a dyno to be around 280whp.



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Old 10-16-2018, 11:10 PM
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What injector duty cycles?
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Old 10-16-2018, 11:21 PM
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5 speed or 6 speed? What gear?

This thing looks like it hits full boost 1000 revs after my 2871. Seems like a lot even if it's an NA vs NB motor. Is your motor built?
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Old 10-16-2018, 11:22 PM
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Originally Posted by B Mike View Post
What injector duty cycles?
Looks like 35-72 from 4K-7K rpms. Why do you ask? I can send data log if you want to look something over.
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Old 10-16-2018, 11:27 PM
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Originally Posted by ridethecliche View Post
5 speed or 6 speed? What gear?

This thing looks like it hits full boost 1000 revs after my 2871. Seems like a lot even if it's an NA vs NB motor. Is your motor built?
5spd, I do both 3rd and 4th with consistent numbers. I had a couple 370whp and cant account for the variations but otherwise car is pretty consistent.

I've tapered the boost curve to manage the torque spike and flatten the curve. Stock NA8 motor. When I run without boost table it winds up very quickly but tapers off.
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Old 10-16-2018, 11:49 PM
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Originally Posted by Wulfensteinster View Post

Looks like 35-72 from 4K-7K rpms. Why do you ask? I can send data log if you want to look something over.
Just curious. I have a 2560r with 640 ev14's at 93 octane,12 psi, original pump. Haven't checked in a bit but I think I'm in the low 80's.
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Old 10-17-2018, 12:36 AM
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Just curious - I ran a 2560 and found it to run out of breath above 16/18psi. I didn't think these could hit 300hp. Can you share your intake air temps at 20psi? Is your turbo pushing hot air at that point?

What size exhaust are you running?
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Old 10-17-2018, 01:56 AM
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Originally Posted by Mudflap View Post
Just curious - I ran a 2560 and found it to run out of breath above 16/18psi. I didn't think these could hit 300hp. Can you share your intake air temps at 20psi? Is your turbo pushing hot air at that point?

What size exhaust are you running?
Hey, have you ever hanged out with Nick from Erie?
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Old 10-17-2018, 11:45 AM
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Seems to spool a bit late.
a 2560 should hit 200tq at around 3200-3400rpm.
and 2700lbs for na with driver seems a bit high, did you weight the car?

my nb2 is 2500lbs. I would think na should be about 2350.

extra weight props up the dyno numbers
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Old 10-17-2018, 12:06 PM
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I'm also curious and want to know/hear more as this is eventually what I'd like to do with my set up in the future.

Originally Posted by borka View Post
Seems to spool a bit late.
a 2560 should hit 200tq at around 3200-3400rpm.
and 2700lbs for na with driver seems a bit high, did you weight the car?

my nb2 is 2500lbs. I would think na should be about 2350.

extra weight props up the dyno numbers
I also agree 2700 lbs seems high, I know some of us are "built" different than others... But maybe he had a passenger?
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Old 10-17-2018, 01:08 PM
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Originally Posted by Mudflap View Post
Just curious - I ran a 2560 and found it to run out of breath above 16/18psi. I didn't think these could hit 300hp. Can you share your intake air temps at 20psi? Is your turbo pushing hot air at that point?

What size exhaust are you running?
There have been a couple people that hit over 300whp on these turbos, although its very rare and usually is on a setup with a better flowing exhaust manifold design. I personally run a GT2560R on a FM manifold and run 17-18psi on 93 octane. I havent had it on the dyno yet but it feels like a solid 270-290whp but thats my butt dyno.
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Old 10-17-2018, 01:14 PM
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Nice looking plot, although it can definitely pick up some lowend torque if you wanted it to. 300 is certainly possible at full tilt and on good fuel. clean car btw
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Old 10-17-2018, 01:17 PM
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Originally Posted by 18psi View Post
Nice looking plot, although it can definitely pick up some lowend torque if you wanted it to. 300 is certainly possible at full tilt and on good fuel. clean car btw
I think he said he was on a stock engine, i agree that it needs more low end but I bet the stock rods would be really pissy.
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Old 10-17-2018, 02:09 PM
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I think I'm closer to 340 when it's turned up. And yeah, it's just blowing wind past 20psi.
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Old 10-17-2018, 02:17 PM
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Originally Posted by Erat View Post
I think I'm closer to 340 when it's turned up. And yeah, it's just blowing wind past 20psi.

Youre making 340 on a GT2560? The compressor literally cant do that but ok....any VD or dyno chart on it?
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Old 10-17-2018, 02:24 PM
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Originally Posted by andyfloyd View Post
Youre making 340 on a GT2560? The compressor literally cant do that but ok....any VD or dyno chart on it?
+1

did anyone in the world hit 340whp with a 2560 on a small 4 banger?
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Old 10-17-2018, 02:26 PM
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butt dyno miss calibration
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Old 10-17-2018, 02:31 PM
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340whp GT2560Rs are not a thing
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Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
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Old 10-17-2018, 03:01 PM
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That's what VD gives me. I do know I'm at 100% duty cycle with 750cc injectors.
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Old 10-17-2018, 03:27 PM
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All VD gives me is a weird discharge.
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