Notices
Tuning Reflashes, Piggybacks, Standalone ECUs

tune with Camshafts

Thread Tools
 
Search this Thread
 
Old Jul 4, 2007 | 08:05 AM
  #21  
SmokyTyrz's Avatar
SmokyTyrz
Registered User
 
Joined: Oct 2005
Posts: 690
Likes: 0
From: Louisiana, USA
Default

How are you measuring airflow into the cylinders?
Reply
Old Jul 4, 2007 | 01:03 PM
  #22  
bleunetizen's Avatar
bleunetizen
Thread Starter
Registered User
iTrader: (3)
 
Joined: Oct 2003
Posts: 333
Likes: 3
From: nz
Default

not per cylinder.. but the whole air via MAF sensor. higher the voltage, more the flow
Reply
Old Jul 4, 2007 | 05:53 PM
  #23  
dovla's Avatar
dovla
Registered User
 
Joined: Sep 2005
Posts: 183
Likes: 0
From: NJ
Default

bleunetizen and rocks, what MAF voltages are you guys seeing above 6K rpm? Thanks
Reply
Old Jul 4, 2007 | 06:12 PM
  #24  
rocks's Avatar
rocks
Registered User
iTrader: (1)
 
Joined: Jul 2006
Posts: 1,396
Likes: 2
From: hobbs nm
Default

I think it was right at 4.48 volts.
Reply
Old Jul 4, 2007 | 06:35 PM
  #25  
bleunetizen's Avatar
bleunetizen
Thread Starter
Registered User
iTrader: (3)
 
Joined: Oct 2003
Posts: 333
Likes: 3
From: nz
Default

before cams, the max was 4.7v at redline, in cold dry day. it stayed 4.7v from about 6000rpm upto 6600rpm.

after cams, the max became 4.78v at 6600rpm, in 8deg celcius hotter, wet day. Haven't tested yet but with the rev limit set at 7000~7200, i got a feeling that it will suck more air in.
Reply
Old Jul 4, 2007 | 08:19 PM
  #26  
El Verdugo's Avatar
El Verdugo
New Member
 
Joined: Jul 2006
Posts: 620
Likes: 2
From: Kenner
Default

Originally Posted by rocks
Nope not an accessport. I sometimes wonder if that thing will even show up.
Nice, well we will just have to wait and hope this system is as good as you say it is.
Reply
Old Jul 5, 2007 | 06:21 AM
  #27  
lightner22's Avatar
lightner22
Registered User
iTrader: (1)
 
Joined: Jun 2005
Posts: 222
Likes: 0
From: K.G. VA
Default

Originally Posted by 1redZ983
sorry to be a little off topic..but isnt the accessport coming out this summer? they said 3rd quarter.
And before that they said 1st quarter...and before that end of year 2006 etc. By the way it IS 3rd quarter now and they still won't even answer questions about it let alone let anyone know how close to production they are.
Reply
Old Jul 8, 2007 | 03:45 PM
  #28  
bleunetizen's Avatar
bleunetizen
Thread Starter
Registered User
iTrader: (3)
 
Joined: Oct 2003
Posts: 333
Likes: 3
From: nz
Default

after raising the rev limit to 7200, now i see 4.84v of MAF voltage.

i wonder though, my cams are only allowing more air in from around 6000rpm, compared to stock cams. Does that mean its only making more power from 6000rpm?
Reply
Old Jul 9, 2007 | 05:35 AM
  #29  
bleunetizen's Avatar
bleunetizen
Thread Starter
Registered User
iTrader: (3)
 
Joined: Oct 2003
Posts: 333
Likes: 3
From: nz
Default

One thing i found interesting while doing timing tune.. is that the entire timing band seems shifted to higher rev range, by 1500~1750rpm.

and it looks like the timing curve is an unside down image of the engine's torque curve.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MM'08_350Z
VQ35HR
225
Apr 22, 2021 09:42 PM
2ndchanceZ
Engine
1
Oct 26, 2015 08:03 PM
KOF
Tuning
5
Sep 30, 2015 04:09 AM




All times are GMT -8. The time now is 08:27 AM.