The car is fresh out of the shop and so far so good!

Rob did an awesome job of getting the car right. He ran into a couple of snags with the UpRev software, but he was able to will his way through it and come out on top with some pretty good results.

Specs:
VQ35DE
Greddy Twin Turbo 18g @ 8.38lbs of boost
RC650cc injectors
Fuel Return Line with drilled out fuel rail restrictor plates
Walboro Fuel Pump
UpRev Osiris
HPX MAF sensor
APS 2.5" true dual exhaust
Approx. 40k miles
Manual Transmission
91 Octane

Attached is the dyno and according to Rob it's a pretty conservative tune. Aggressive should be really interesting then. Also noteworthy is that the motor has a rattle emanating from the head which he suspects to be a loose shim bucket. We'll tackle that when we do cams...YEEEE!!

 

Nice,

6spd or Auto.
And is this on cali 91 oct?

Tom

 

Ooh that's right...updated!

 

looks good

how much more are you wanting to push on the stock block. doing cams seems pretty
silly unless you are fully building..

 

Congrats and enjoy. I love my Greddy kit.. I agree about the cams though. No point in just doing cams if keeping the stock bottom end as your pretty close to the considered safe zone of the stock block (400hp) anyways.

 

Very nice. Nice and safe. Enjoy your new found power.

 

Definitely agreed. Already hawking the marketplace for built long/short blocks. A steal of a deal is bound go pop up sooner or later!

I was considering working on traction first, but I never track and LA roads are terrible so...more powah it is!!!

 

^i'd read posts from people that have bought used motors. Failure rate is quite high.

 

Shouldn't have needed the HPX MAF sensor for those power levels..
Other than that looks like fun!

 

Stock MAF maxed out at 5psi by redline on mine...dunno where you got your info?

 

OP what psi did you have your car tuned to?

 

^^ shows 8.3psi on the dyno chart.

 

thanks guy^^^

 

Congrats on da new power... I was sure you'd get higher numbers n if im not mistaken it's a dynojet so reads higher than normal... Is the 91 octane really holding you back compared to 93 we have in FL?

 

I made 403 whp at 7psi on a dynojet with the stock maf..
Maybe they're all different

 

^ it depends on what you use to tune. osiris relies on the stock maf, while some of the other platforms don't (maf is still being maxed out though).

OP, congrats on the results. drive the **** out of your car and enjoy it to the fullest

 

I'm was tuned with Osiris both times.. stock block and now with the built block and HPX MAF. Jus sayin, I didn't need the aftermarket maf and made 403 whp DJ. It is what it is.

This time around I'm using the HPX MAF and shooting for considerably more whp.

 

great numbers! Any pics of the Z?

 

Nice! I'll be in the bay soon. Want to check out Z Car Garage.

 

hmm, very interesting then. for a while, folks have been trying to figure out why some MAFs max out while others don't. for the vortechs, at least, it has been whether or not the tune relied solely on the MAF or whether the ECU/piggy back/standalone got it's data from other sources (MAP sensor, vortech FMU using boost pressure to adjust, etc). if you were comfortably tuned over 400hp (how much boost, btw?) then it throws all that into question