Quote:
Originally Posted by BaldTurboFreak
Awesome Brentil! Thanks!
LV , Mike's not generally open on weekends.
But, I honestly havent driven it since friday, I've been working my Arse off to get the dyno pit/shopfloor done so I can build the new addition.
Put it this way, I'm considering buying my own jackhammer. Rediculous boulders!
Gotta get it up before the snow flies! (just a month away)
Im going to go out for a ride tonight after dinner. I have to see if my new cam timing map alleviates the surge @20psi 3000-4000rpm.
If you run 18psi it doenst happen. If you floor it from 3K it doenst happen. But pull 4th from 2000rpm@23psi and it's there everytime for just 1K rpm and is gone. It's not acceptable to run in surge.
I wrote a boost map that was 19psi until 4K then 23psi until 7400. No surge. What irks me is that when plotted on the comprssor map it's in a great area. well away from the dark black line.
Makes no sense, but I'll figure it out.
It could be that Im all stock and corked up a bit. The GT30R didnt have a CAT to contend with.
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BTF, what's the exact cause of surge? IE, what's the air doing and why?
Definitely pull the stock exhaust... even if it's not part of the surge cause, it's still gotta be hurting efficiency.
