STILLEN 370Z Supercharger System - Announcement!!!

willtangclan

Yes i reflashed it back to the R4 tune where it was running better without the ping. I'm pretty positive it was the correct tune chosen because the only thing about this tune was the ping, other then that the car ran amazing. Much better then previous tune

The ping would come in around the 800-1700 rpm range.

Chris@FsP

From the rpm ranges you stated, it sounds like tip-in knock. I've seen it on a few 370's even with stock tune. Does it knock under load too?

Phimosis

Good point. I was thinking high rpm/full load. Cars back in the 70's would have tip-in pinging and still last more than 100,000 miles.

willtangclan

Yes i'm aware of tip-in pinging, some of my previous cars had this and still runs perfect till this day. But the pinging i'm getting here is head turning!! People would look at me like 'dude your car is messed!!' kind of look.

willtangclan

It only seems to knock under load. Starting in first gear the knock would be very drastic. Switching to 2nd gear at around 3500 rpm there would be a light knock but only for very short period of time. While in motion with the higher gears it would not knock when i'm gradually giving it throttle. But if i throttle it a bit aggressively it would knock.

weiboy718

wow, how does the knock sounds like? Does It sounds like a hammer banging on your engine. with you accelerates.

willtangclan

It sounds like theres a bunch of ball bearings in the engine bay just jumping around around as i accelerate.

weiboy718

damnnnn, that must sound horrible!

i have the same exact tune as you and no problems yet.

willtangclan

Yah it's pretty scary sounding. I notified Josh and he's gonna let the rest of the guys at Stillen know on Tuesday and hopefully something will be worked out soon. Will keep you guys posted!!