Well I'll cut to the meat. At 8psi it dynoed 411rwhp and 360 rwtq. This was on a Dyna pack dyno SAE corrected.

My set up is in the sig. The low TQ is from how rich the setup is. it was low 10:1 all the way until about 4800. I will post pics of the sheets here shortly. I'm thinking about leaning it out a little to see the TQ and hp come up alittle.

Gary

 

Gary, can you tell us a llittle more about the setup? I cant recall all the details.

What injectors are you running....do you still have the eManage?


Was it running rich due to the Walbro 255 or do you have an FPR?

 

What I wanna know is how to lean out the A/F mixture. As I am running real rich as well. Will getting an exhaust system and downpipes lean out my AF?

 

GQ: I have the new TS flash for the Greddy that controls the 440's so it will take care of the Greddy kit completely. This was completely controlled by the ECU.

Here's the current fuel and timing setup:
Injectors: RC 440's
Fuel pump: Walbro 255lph no return
ECU: TS "Greddy" reflash for 8psi.

The richness is just part of the TS program. I'm guessing they did this to be safe. I believe I'm the first to run this program so I'm guessing they left a good bit of buffer in there. I will talk to Brian to see about tweaking it a little to pull some midrange fueling

All in all I like it. The biggest benefits to me is, better throttle response, more top end pull due to the throttle body staying open (it doesn't feel like it is wheezing at high rpm) retarded timing and less varibility due to a piggyback tricking the ecu.

I still have the emanage installed it's just cleared out so all it's really doing is acting like a voltage clamp right now.
Gary

 

The best benefit is that anyone who has a Greddy kit can just install the TS and a 90$ fuel pump and run 8psi with out blowing it up.

Are you going to make the most hp per lb of boost? No, but your not going to blow up the motor trying to figure it out or get that last hp out of it.
Gary

 

The test pipes and exhaust will lean you out nicely. With just the kit, test pipes and exhaust my A/F started at 10.8:1 @2000rpm and leaned out due to the stock fuel pump running out of flow at redine to 11.8:1. Once I installed the new pump it was rich as hell to redline again.
Gary

 

Here's the dyno sheet.

 

I think its running rich due to the Walbro 255. Have you considered running a raising rate FPR and simple return fuel system? The hardest part of tuning the 350Z is the irratic fuel pressure...makes it darn near impossible to get a steady and consistent A/F ratio.

 

With the TS reflash all my richness was fixed at idle and during normal drive and I get the same A/F every pull now. It has to be the emange that causes it to jump around like what your talking about. It did it before the flash each pull would look a little different in the A/F, but after it is very consistant. It has to be the way it interacts with the ecu as a piggyback.

I know what your talking about GQ, before the flash it would run rich alot even during normal driving but it no longer does that.
Gary

 

Good news Gary. I'll continue the emails with you when I get back to work Monday. We have plans to fine tune a Greddy equipped car for psi levels 5 through 9 in the near future to better help tune the flashes. Hopefully we can have those done before you send your ECU back for some tweaking.

 

Hmm... this is interesting! So if we can slap on the Greddy kit + upgrdaded fuel pump + TS flash, I guess we don't have to splice up anymore wires and fiddle with e-manage... right?

So that'll probably save us some $$ on stuff we don't need... unless I'm wrong here.

Then the Greddy kit value will start making some sense... (i'm not fond of the piggy back ecu thing...)

 

Correct...but you might to keep the eManage installed, so you have add more boost and fuel later...without another reflash. And if you start with TS Greddy reflash, the eManage will make less changes to the base ECU map...and the car should run better.

I also like the eManage installed, simply to clamp the MAF voltage at 5.0V, and eliminate the possibility of a limp mode.

 

Please explain "clamp the MAF voltage at 5.0V"? Why and "how to" with the eManage?

 

air flow goes up.. MAF output voltage goes up. Output voltage goes too high within a RPM range.. car thinks something is malfunctioning and car goes into limp mode. A 'safe mode'. I think its if the MAF maxes out before 4000 rpms.

Using the emanage you can prevent that from happening.

 

It's under boost limiter cut on the e-01.

 

What year is your car?.....and is 10:1 giving you an SES light. I have found out that at least on 2004.5 models onwards, an A/F that is 12.5% more or less than the stock spec settings (whatever those are for any given RPM and /or throttle position) will trigger an SES light.

 

gq.....my fuel pressure stays fairly stable between 51-53psi. This is according to my fuel pressure gauge which is located immediately after the regulator at a T-adaptor which connects the auxillary fuel line that feeds my extra injectors on my HKS system. This is, of course, running the HKS fuel pump that came with the SC kit.

 

Speed....that is great to hear. If you have an aftermarket FPR, this should help stabalize the fuel pressure. But I am not certain at what point the stock intank FR becuase a restriction to more fuel. Essentailly, right now...you are running two FPR;s, and the aftermarket fuel pump you have is simply overpowering the in-tank FPR.

 

I have a 03 thank goodness. So no SES's lights. The 04's seem to be a bigger pain to modify the ECU.
Gary

 

the 2004.5 ECU's are the real trouble makers. I have an 2004 car, but early build, so I have the same ECU as the 03...easy to tune.

Apparnetly, the 2004.5 have a wideband O2 sensor, that really messes things up. Since its ULEV compliant, any minor changes to the A/F ratios will f things up.