GrahamC

iTrader: (4)

Hi Guys,

Eventually made it to a rolling road and managed 221.5bhp at the wheels. Quite happy with that on a 2554.

Here's a scan of the rolling road graph.

kotomile

iTrader: (24)

That is good for a 2554, no correction factor?

GrahamC

iTrader: (4)

Not sure what that means? Excuse my ignorance.

MiataMX5

iTrader: (3)

how much boost

thirdgen

iTrader: (26)

Almost 2 hours later, the big question still stands:
HOW MUCH BOOST?

GrahamC

iTrader: (4)

Around 13psi, tailing off to 11.x psi at the redline.

levnubhin

iTrader: (30)

Nice numbers, but holy torque drop Batman!
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GrahamC

iTrader: (4)

Do you think the torque drop off could be fixed by just trying to run 13psi to the redline?

akaryrye

iTrader: (5)

would sure help a lot mate

GrahamC

iTrader: (4)

I'm pretty sure if I run 13psi to the red line I'm going to get knock. I keep it at bay with octane booster at the moment. Maybe I'd be best to increase the boost to a flat line and pull some timing if I'm encountering more knock.

kotomile

iTrader: (24)

Then again, if you were going to run more boost near redline, then why not increase it lower too and enjoy a fatter midrange?

WI is always an option to help deal with knock.