gt2560 or 2860
#21
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I'm leaning toward the smaller turbo. I'm thinking about advancing cam timing just a hair, so i can essentially run lower rpm and not hang the motor in the red all day.
Today I ran my regular track backwards, and I was thinking..."I sure would like to put it in 4th at 3800rpm and accelerate out of this corner, rather than 6k rpm in 3rd."
Today I ran my regular track backwards, and I was thinking..."I sure would like to put it in 4th at 3800rpm and accelerate out of this corner, rather than 6k rpm in 3rd."
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well, I'm thinking that will be the cut-off. I don't want to worry about blowing up drive train. I plan on detuning it to no more than 240whp.
do you think I'll fall victim to turning up the boost? I'm probably going to end up with a forged motor, but I'm still worried about drive train...your thoughts?
do you think I'll fall victim to turning up the boost? I'm probably going to end up with a forged motor, but I'm still worried about drive train...your thoughts?
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Aside from spinning at a higher rpm, what else will the 2560 suffer from in comparison to the disco potato?
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the 2560 looks good for like 20psi or so....
very similar to my T3....if you're only looking for 250rwhp on a 1.8 I don't see why you'd really need any bigger.
![](https://www.miataturbo.net/braineack/random/t3vs2560.jpg)
but the potato will give you lots of headroom if you need it....
very similar to my T3....if you're only looking for 250rwhp on a 1.8 I don't see why you'd really need any bigger.
![](https://www.miataturbo.net/braineack/random/t3vs2560.jpg)
but the potato will give you lots of headroom if you need it....
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didn't you say you wanted 240 rwhp?
The 2554 would get you there, or damn close, but that's it.
The 2560 would get you there, and still have some headroom to grow.
The potato is a cool turbo, but too big for a 240 whp 1.6
The 2554 would get you there, or damn close, but that's it.
The 2560 would get you there, and still have some headroom to grow.
The potato is a cool turbo, but too big for a 240 whp 1.6
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http://flyinmiata.com/tech/dyno_runs/Jeremy_potato.pdf
gain power at the expense of spool...however, it's not at all that slow to spool. But I'm a sucker for a bit more low-end with good top-end.
gain power at the expense of spool...however, it's not at all that slow to spool. But I'm a sucker for a bit more low-end with good top-end.