krayzrac3r

EBC is hooked up and working fine however my boost is weird. 1st thru 3rd i spike up to maybe 12-13 then hold 8-9psi. 4th and 5th gear i spike 14-15 and hold 12-13psi. I get full boost by 4500RPM and im pretty sure my muffler is whats restricting me (obx muffler) but does anyone else have this issue also? I dont know if im asking for too much or not but i want to boost about 11-12psi 1st thru 3rd and 13-14 psi 4th and 5th.

krayzrac3r

so im the only one with spikesss? haha

neogenesis2004

iTrader: (12)

Its spiking because you are overshooting when it ramps up. You just need to work on your ebc map to correct the overshoot out. PNP doesnt mean PND (plug and drive)

cjernigan

iTrader: (13)

Part of the beauty of EBC is you should be able to tune out any spikes like that. What does your EBC duty map look like? Screenshot is fine.
You want it to build boost as fast as possible then smoothly hold the max boost you tune it for.

krayzrac3r

I spent 30 minutes on the highway with a buddy last night trying to fix this and that was the best i could do. ill get a screen shot in about an hr when i get home for you guys to take a look at.

krayzrac3r

Just got
boost controller parameters settings

http://upload.imgspot.com/u/07/331/1...parameters.JPG

Boost duty target settings

http://upload.imgspot.com/u/07/331/1...dutytarget.JPG

Boost KPA Target Settings

http://upload.imgspot.com/u/07/331/1...kpatargets.JPG

FoundSoul

iTrader: (5)

How about a datalog from a long pull-- from well before boost onset on up. I need to see manifold pressure versus BCduty in the logs.

It definitely shouldn't be 'spikey' at all. Relatively smooth actually. Though it looks like you're using my scaling on your DC table, which may not match how your turbo spools very well. I'll be able to see this in your logs...