I was left to represent Miatas alone...
Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
My buddy is a retired Marine and he brought that car back from Okinawa, Japan. He just rebuilt the engine and is limiting the rpms to 8500 for break-in. He is also limiting the boost to 1.4 bar. I admire his restraint. It's a strange ride, though. Boost doesn't come in until 5000 rpm because of the big cams and turbos he's got on it. From 5k up, it's breathtaking.
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Joined: Nov 2008
Posts: 22,204
Total Cats: 3,560
From: Tampa, Florida
I'll only need a rollbar if I intend to flip it over. I'm not ready to do that yet.
what is max rpm?
He's got the limiter set to 8500 for break-in, moving to ~10k after he gets the dyno time to get a tune on it. He'd just put a new ECU on it when he did the rebuild and only has a basic tune.
It runs pretty well for as much time as was spent on the road tuning (about 40 minutes(I was there)). He isn't running the boost controller yet, either. I can hear the wastegates bleeding constantly when he's in boost, so I suppose the crispness of the acceleration will be even more dramatic once the controller is active.
Being into musclecars as well, I'm amazed at the revs you can get out of that engine with about a 2.75 inch stroke. My Pontiac has a 4.21 inch stroke and doesn't like the topside of 5K, but makes over 500 ft/lbs at 2250 rpm. I guess that is your trade-off. Frankly, I'd actually rather rev high. It's more fun.
what is max rpm?
He's got the limiter set to 8500 for break-in, moving to ~10k after he gets the dyno time to get a tune on it. He'd just put a new ECU on it when he did the rebuild and only has a basic tune.
It runs pretty well for as much time as was spent on the road tuning (about 40 minutes(I was there)). He isn't running the boost controller yet, either. I can hear the wastegates bleeding constantly when he's in boost, so I suppose the crispness of the acceleration will be even more dramatic once the controller is active.
Being into musclecars as well, I'm amazed at the revs you can get out of that engine with about a 2.75 inch stroke. My Pontiac has a 4.21 inch stroke and doesn't like the topside of 5K, but makes over 500 ft/lbs at 2250 rpm. I guess that is your trade-off. Frankly, I'd actually rather rev high. It's more fun.
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Joined: Nov 2008
Posts: 22,204
Total Cats: 3,560
From: Tampa, Florida
Can't claim credit for the pics. Someone else at the event took them.
I'm still collecting info and parts. I don't want to buy the wrong parts so I'm taking it slow with that and reading a lot. I also am in the middle of other ongoing projects. Can't do it all at once.
I'm still collecting info and parts. I don't want to buy the wrong parts so I'm taking it slow with that and reading a lot. I also am in the middle of other ongoing projects. Can't do it all at once.
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