MaXtUneD

iTrader: (2)

Setup:
- 8 psi boost
- t3(.63 a/r)/60-1 compressor(.70 a/r)
- 3 inch exhaust turbo back
- walbro fuel pump
- adfpr(set at stock 34psi as JWT recommends
- timing is set at 15 degrees which is stock and what JWT recommends
- 370cc injectors
- z32 maf(noncharged side)
- JWT tuned ecu for maf and injectors

RESULTS:
238hp/255tq

My air fuel ratio was 12/1 across the rpm band all the way up to redline.
I am a little dissapointed with the numbers. I know I can get a little more power if I hook up my SAFC and fine tune it..Is it being a little on the rich side causing the car not to create more power???
Also, I was thinking that my intercooler maybe to small for my application..The size is 31x6x2.5...Thats all I can think of except raising the boost...

Let me know what you guys think...
Oh yeah, before anyone ask, heres the dyno sheet....Videos will be coming soon...

DA-MAX

iTrader: (10)

comparing you to the other VE-T dyno I saw, you should be around 260/260 or so if not higher considering you have a little more as far as a/f tuning "capability" than he did. I get at least get a 9" tall and 3" deep IC...even most Hondas only will run a 6"/2.5" cooler up to 300hp

In my whole hearted opinion, I'd never have gotten the JWT and went with Emanage or something that allows for more versatility and self-tuning

MaXtUneD

iTrader: (2)

well...Im on my way to purchasing a bigger intercooler....Also, I will be hooking my safc back up then hit the dyno again and tune it...

Stephen Max

iTrader: (59)

You're making good torque at 4-5 krpm but then it nosedives. Maybe your compressor is too small and can't sustain the airflow at high rpm.

BigDogJonx

iTrader: (7)

Is this one of those dyno's that hookup to your wheel hubs to get your flywheel HP? Because its still not flywheel HP, you still have drivetrain loss.

Dixit

DA-MAX

iTrader: (10)

Dixit, last I knew B&T uses a Dynapack(the hub style, no rollers)...but it does measure at wheel HP as well as far as I know.

Nealoc187

iTrader: (23)

Are your VTCs working? It is really nosediving ant high rpm but the torque looks like its about where it should be. Either that or you have too small a turbine which would not surprise me for a second... a .63 T3 is like honda sized. BTW you aren't running rich... if anything you are perfect to maybe a tad lean. In an ideal world I'd shoot for like 11.7-11.8 AFR under boost and if you are at 12.0 across the board you are doing pretty well in the AFR department.

Boosted Maxima

Do you have the VG or the VE engine? or somthing different....?
My car does not run well with 11's air fuel wise.. It realy likes fuel. Bump up the FP 3to4psi and see how the car feels. (only speaking for a VG) VE's might like it too.. not sure though.
I run a .67 A/R housing so do all the GN turbos right up to the .70mm series we use.
~Scott

Nealoc187

iTrader: (23)

93 SE is a VE which is why I mentioned VTCs.

BigDogJonx

iTrader: (7)

Right but if you look on the scan it says Flywheel HP.

Dixit

MaXtUneD

iTrader: (2)

I don't think my compressor is small..It is a 60-1 compressor that has a .70a/r...
Is it possible that my turbine side is to small, a/r wise?? Can I still stick to a t3 turbine, but with a bigger a/r, say like a .70 - .80 a/r???

Nealoc187

iTrader: (23)

Your compressor is not too small, too big really if anything, but that's not why your power is dropping like a rock. Like I said before it's probably your VTCs or turbine being tiny or a combination of both.

DA-MAX

iTrader: (10)

you're right, I missed that...ouch, then factor in the common 15% loss and he's making even less. I hoping it was just an error though in the dyno software...he should call them back and check that out

MaXtUneD

iTrader: (2)

I just found my old dyno run on a dyno jet...Same setup, but with stock injectors, z32 maf, stock ecu, cartech fmu and a Safc...They dyno'd my car in 3rd gear..the B and T dyno was done in 4th...

Blu

iTrader: (63)

looks like the dyno jet guys are struggling to find a good signal. That graph is all over the place.

Brad92SE

iTrader: (9)

Interesting... You should be making more power than that. The turbine isn't the problem, I have the same turbo as you, but with a smaller compressor (60 trim). The turbine could be causing the drop at high rpm's, as mine did the same thing, but I just attributed that to me going super rich above 6K. My afr was varying between 10 and 11 during my pull, and that made 262hp. I would try hooking the stock ECU back up and tune with your SAFC and just see if you make more power. If not, then a tune up might be the way to go, although I don't see that making a huge difference. You could try richening up the fuel mixture with the JWT too. How is your knock sensor? I know mine was giving me a crapload of trouble, so I just disconnected it. Kinda unsafe, but you could drop a resistor in there just for one pull on the street and see if there is a difference. Just make sure you have a wideband.

MaXtUneD

iTrader: (2)

Knock sensor is brand new..when I replaced the injectors, I went ahead and replaced the knock sensor and intake gaskets...

DA-MAX

iTrader: (10)

what about the VTCs, like Neal mentioned. easy 12hp loss if not working right

MaXtUneD

iTrader: (2)

ok..how would I go about checking up on the VTC's???How do I know if they work or stopped working?

Nealoc187

iTrader: (23)

Dynapacks read lower than dynojets do if I recall... I wouldn't worry about the numbers much if that is the case, but the drop in power at high rpm.

Brad92SE

iTrader: (9)

Your VTC's are bad if they clatter when you start the car cold. However, VTC's only help low-end, IIRC.

Nealoc187

iTrader: (23)

I thought VTCs only helped high end?

subs1000w

well they accually help low and high

read this to better understand VTCs

http://forums.maxima.org/showthread.php?t=421747

Iilac

iTrader: (65)

I thought dynapacks read higher then dynojet because it is connected directly to the hub so there is no wheel parasitic loss to factor in.

DA-MAX

iTrader: (10)

my thought as well

Nealoc187

iTrader: (23)

Dynapacks are load dynos right?

Iilac

iTrader: (65)

From their website, dynapacks exert a hydraulic load.