04/24/10 - MOAR POWAH!!!
Installed boost solenoid, made jam!
Also installed some gold reflective foil on the underside of the hood
over the turbo (sorry for the lousy pic)
Also installed some stickers just for tuning:
Then hit up the dyno... I'm just gonna quote mike from innovative from
here out:
I've missed a few days of blog posts but wanted to get something up
about Newman's Skyline GT-R powered BMW which I tuned for more boost
today on 93 octane pump gas.
After checking to make sure the car was running as I left it, I started
bringing the wastegate duty cycle up until the boost went over the 8
psi wastegate spring pressure. As the boost started to go up it was
clear that I would be able to achieve Neman's goal of 450 whp on 93
octane with no external injection.
Here's a graph showing some of the pulls during the tuning process.
I've chosen these ones since they're close to the boost levels we
decided on for the boost by gear setup I've calibrated via the ViPec
standalone ECU.
After the pull to 449 whp shown above Newman and I decided we had to go
a bit further to break the 450 whp barrier. I knew there was a good
amount of room left to grow so I bumped the boost up a bit and made a
small timing adjustment which resulted in a pull that I aborted because
the car spun the tires hard on the dyno.
After adding some weight to the trunk and adding some volunteer
"passengers", we were able to get a pull in with less wheelspin. You
can still see when it spins going into boost in the following video:
high quality vimeo video:
http://vimeo.com/11200475
low quality youtube video:
And here's the graph of the high pull in the video:
After dyno tuning was complete, I set up gear calculation and then
boost by gear which is now set to provide 12 psi in 1st and 2nd gear,
16 ish in 3rd gear, 22 ish in 4th and a little more in 5th gear. In the
future if Newman adds a wheel speed sensor on a non driven wheel I can
set up active traction control for him uses % slip calculation based
response to get the most performance out of the available traction.
XedgeX!!
