tuning with NIStune - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s13envy · 09-26-2008, 08:54 AM

So I just purchased the NIStune software and board to do real time tuning on my SR. Basics of my setup are:

Redtop SR
87mm bore JE pistons
9:1 C/R
Scat Rods
cometic HG
810 deatschwerks inj
Greddy IM
Peakboost turbo mani
SC61 BB turo
Z32 MAF (blow through)
Sard FRP
ported head
JWT C1 cams
JWT springs
BC retainers

I had an enthalpy tune previously. Since the last tune, the things that have changed were the bore, C/R, Greddy IM, Sard FPR, ported head, and used to have BC 272 cams.

I have pulled the enthalpy tune out of the chip and have saved it to my NIStune software, but the car runs extremely lean with this tune. I'm new to this tuning thing and was wondering if someone could help me out with getting this damn thing going.

anyone on here skilled enough to take a look at my current tune and edit it from there?

I appreciate any help you guys can give me.

Cole

killswitch · 09-26-2008, 10:35 PM

Contact Unisa Jecs he maybe able to help you.

onepuff · 09-27-2008, 03:18 AM

Did you try here?

Nistune Forums :: Index

s13envy · 09-27-2008, 05:07 AM

i registered on the nistune forums but haven't been activated yet

Yellow4g63 · 09-27-2008, 06:24 AM

Why not do a map trace and add fuel to the cells that need it? Is it lean all over the place? or just at WOT?

s13envy · 09-27-2008, 06:50 AM

lean all over the place. wont idle, drive, or boost with correct AFR's. this would be my first attempt to do any type of real tuning so I'd rather no "wing" it on this one.

I think I figured out that I'll have to change the K constant to get a global fuel change. Am I correct in assuming this? Can anyone do the math for 810cc injectors and a z32 mafs for me? it is a basic calculation right? Also, I think I'm switching to a ford lightning mafs so if someon could do the math on that one as well, that would be tits!

onepuff · 09-27-2008, 06:34 PM

Nistune will do the calculations for you for the injector size and maf changes. Don't forget to change the injector latency also, makes a big difference. Look around the nistune forum for a tuning writeup it should help you learn the basics. You might also try contacting matt the owner([email protected]). He is really helpful.

09-26-2008, 08:54 AM	#1
s13envy Zilvia Junkie Join Date: May 2004 Location: Shelbyville, IN Age: 41 Posts: 407 Trader Rating: (3) Feedback Score: 3 reviews	tuning with NIStune So I just purchased the NIStune software and board to do real time tuning on my SR. Basics of my setup are: Redtop SR 87mm bore JE pistons 9:1 C/R Scat Rods cometic HG 810 deatschwerks inj Greddy IM Peakboost turbo mani SC61 BB turo Z32 MAF (blow through) Sard FRP ported head JWT C1 cams JWT springs BC retainers I had an enthalpy tune previously. Since the last tune, the things that have changed were the bore, C/R, Greddy IM, Sard FPR, ported head, and used to have BC 272 cams. I have pulled the enthalpy tune out of the chip and have saved it to my NIStune software, but the car runs extremely lean with this tune. I'm new to this tuning thing and was wondering if someone could help me out with getting this damn thing going. anyone on here skilled enough to take a look at my current tune and edit it from there? I appreciate any help you guys can give me. Cole

09-27-2008, 06:24 AM	#5
Yellow4g63 Zilvia FREAK! Join Date: Jan 2003 Location: Socal Posts: 1,454 Trader Rating: (5) Feedback Score: 5 reviews	Why not do a map trace and add fuel to the cells that need it? Is it lean all over the place? or just at WOT? __________________ 95 240sx RB20 415whp 91 Nx2000 VVL yo

09-26-2008, 10:35 PM	#2
killswitch Zilvia Member Join Date: Jul 2007 Location: so cal Posts: 232 Trader Rating: (5) Feedback Score: 5 reviews	Contact Unisa Jecs he maybe able to help you.

09-27-2008, 03:18 AM	#3
onepuff Zilvia Member Join Date: Oct 2006 Location: ohio Age: 46 Posts: 290 Trader Rating: (2) Feedback Score: 2 reviews	Did you try here? Nistune Forums :: Index

09-27-2008, 05:07 AM	#4
s13envy Zilvia Junkie Join Date: May 2004 Location: Shelbyville, IN Age: 41 Posts: 407 Trader Rating: (3) Feedback Score: 3 reviews	i registered on the nistune forums but haven't been activated yet

09-27-2008, 06:50 AM	#6
s13envy Zilvia Junkie Join Date: May 2004 Location: Shelbyville, IN Age: 41 Posts: 407 Trader Rating: (3) Feedback Score: 3 reviews	lean all over the place. wont idle, drive, or boost with correct AFR's. this would be my first attempt to do any type of real tuning so I'd rather no "wing" it on this one. I think I figured out that I'll have to change the K constant to get a global fuel change. Am I correct in assuming this? Can anyone do the math for 810cc injectors and a z32 mafs for me? it is a basic calculation right? Also, I think I'm switching to a ford lightning mafs so if someon could do the math on that one as well, that would be tits!

09-27-2008, 06:34 PM	#7
onepuff Zilvia Member Join Date: Oct 2006 Location: ohio Age: 46 Posts: 290 Trader Rating: (2) Feedback Score: 2 reviews	Nistune will do the calculations for you for the injector size and maf changes. Don't forget to change the injector latency also, makes a big difference. Look around the nistune forum for a tuning writeup it should help you learn the basics. You might also try contacting matt the owner([email protected]). He is really helpful.