yeah, Autologic. Honestly, i don't know about the oilpressure. I'll make sure to bring it up to them.

 

SOME FUNNY CHIT!!!!!!

 

maybe you are spinning the wheels on the dyno

Unlikely, but possible.

When Vtec hits, you lose traction (the dip) then as more power builds, you lose more and more traction (decrease as RPM and power goes up). I have an 800rwhp Z06 and this has happened to me before... lots of times.

 

you have 800 rwhp, i'm only expecting 270-280, so as you said, possible, but unlikely. I will definitely look for that as well though, thanks. maybe my tires suck that much

 

How big is the downpipe? It still looks like there is an exhaust restriction somewhere. An SC61 is plenty big enough, but it also depends upon the A/R of the exhaust housing as well.

Also make sure that you are not leaking boost anywhere. A boost leak may not show up as a reduction in peak boost, but the turbo will have to work very hard to overcome the leak and power will be low. We saw this on an S2000 as well.

UL

 

i like your rendition of the dyno graph I highly doubt the exhaust is going to restrict power that much. more than likely it is an oil pressure/vtec related problem. you should see at least 280+whp on an SC61 @7psi. what exhaust A/R and what compressor A/R are you running?

Kyle R

 

Looks like your cam rockers are not shifting at vtec. Did you have the head off and rockers removed. If so you might have lost some pins. If not, the oil pressure is low. Where are you feeding oil to the turbo from? If its from the pressure switch tap, thats probably your problem.

 

you guys are all awesome, thanks for the feedback/help.

fperra, the guys at Autologic thought the same exact thing. I have the car at Autologic right now, and they will take a look at the head, and the VTEC pins are the suspected culprits. They will get a chance to open her up today. I'm running the same downpipe that comes with the UR kit (2.5" i believe). Spugen dual ti v2 exhaust (again, i believe it's 2.5").

I don't believe we are leaking boost, the boost guage is showing it holding boost the whole time, and you can only tell through the dyno chart and butt dyno the car is just not putting down power in VTEC range.

The guys at Autologic said that there's only one problem with the oil pressure theory is that the Emanage forces VTEC switchover overwriting the facotry ECU safeguard.

 

I doesn't matter what the emanage does with vtec. If the oil pressure going to the rockers is too low, there will not be enough pressure to push the pins to the high cam lobes.

 

no shit huh? I'll relay that to them. thanks bro.