VQ30DE (mevi,pod,Y) 114kws : Dyno + video
#1
VQ30DE (mevi,pod,Y) 114kws : Dyno + video
MEVI currently opens at 5100rpm What should I set it too based on the dyno? 5000rpm?
Blue = MEVI, Red/Green = mevi not activating runs
Video http://www.youtube.com/watch?v=QhzLHdds3nI
Blue = MEVI, Red/Green = mevi not activating runs
Video http://www.youtube.com/watch?v=QhzLHdds3nI
#4
First dyno was with MEVI installed but not activating which might be why you can't see a potential difference in low/mid power.
I just upped the activation to 5300rpm and it does seem smoother engaging, I don't want to have dyno again to see if the dip is reduced but butt dyno says yes
Does anyone know how to convert my torque to ft-lbs?
I just upped the activation to 5300rpm and it does seem smoother engaging, I don't want to have dyno again to see if the dip is reduced but butt dyno says yes
Does anyone know how to convert my torque to ft-lbs?
#5
doesn't look like it took away from low and mid range the mevi that is. just a dip and all high end powa
#7
based upon your dynos you should be activating the VI closer to 5450. The MEVI should open where those lines cross which is about 5450. So I'd move your activation up the at least 5400.
#8
Weird seperation between RPM points on that graph. 5300RPM might do it for you but like hacim said try 5400ish and see if you notice a difference. Def needs to be higher than what is was on dyno. That little dip around 4200-4400 is only going to be fixed by timing advance unfortunately. Why didn't they rev it out to 6500?
#9
Originally Posted by jmeister
Weird seperation between RPM points on that graph. 5300RPM might do it for you but like hacim said try 5400ish and see if you notice a difference. Def needs to be higher than what is was on dyno. That little dip around 4200-4400 is only going to be fixed by timing advance unfortunately. Why didn't they rev it out to 6500?
#11
Originally Posted by Source
nice video
the air/fuel ratio must be between 12,5 and 13
the air/fuel ratio must be between 12,5 and 13
#15
I don't think you're going to see much better gains out of an AFC. AFR isn't bad at all for the stock ECU, surprisingly. But hey VAFC2s can be had for under $200 shipped off ebay so if you want to mess with it go for it. But that means a dyno tune and more $
#16
Originally Posted by NmexMAX
I'd say yes, you could gain.
Going to dyno tomorrow .. new exhaust.. and corrected MEVI openning.. 120kws? Previous dyno stock exhaust+Y & bad mevi openning = 114kw.
Will see if they can give me an increase estimate based on the AF ratios
#18
Originally Posted by NmexMAX
I might dyno tomorrow too
How are you planning on conditioning your AFR?
How are you planning on conditioning your AFR?
Local place has dyno day 1st sat of every month $US47 for mixture check and one power run pull.. going to ask if I can slip in a 2nd and try higher VI point too
#19
well just for reference, on the 3.0 from tuning alone I went from 184WHP-187WTQ, to 191wph-195wtq. What those #s convert to in kws, I have no clue, lol.
Just for reference, my car ran a bit richer than yours. at 4500 (my richest point) I was at 11.9:1, the rest of the closed loop range (3k-redline) was mostly at 12.2:1.
Remember that not only does it help to make power by tuning the a/f, but it also makes the engine more responsive by doing so. I still love my SAFC.... but yea EVENTUALLY EU will replace it, lol
Just for reference, my car ran a bit richer than yours. at 4500 (my richest point) I was at 11.9:1, the rest of the closed loop range (3k-redline) was mostly at 12.2:1.
Remember that not only does it help to make power by tuning the a/f, but it also makes the engine more responsive by doing so. I still love my SAFC.... but yea EVENTUALLY EU will replace it, lol
#20
The reason a lot of these VQ's gain from tuning is the indirect timing affect.
These run rich, so that alone = gains, BUT, we also can add timing by taking out x% of fuel, effectively, adding timing to compound said gains
These run rich, so that alone = gains, BUT, we also can add timing by taking out x% of fuel, effectively, adding timing to compound said gains
#21
Originally Posted by 95BLKMAX
well just for reference, on the 3.0 from tuning alone I went from 184WHP-187WTQ, to 191wph-195wtq. What those #s convert to in kws, I have no clue, lol.
Just for reference, my car ran a bit richer than yours. at 4500 (my richest point) I was at 11.9:1, the rest of the closed loop range (3k-redline) was mostly at 12.2:1.
Remember that not only does it help to make power by tuning the a/f, but it also makes the engine more responsive by doing so. I still love my SAFC.... but yea EVENTUALLY EU will replace it, lol
Just for reference, my car ran a bit richer than yours. at 4500 (my richest point) I was at 11.9:1, the rest of the closed loop range (3k-redline) was mostly at 12.2:1.
Remember that not only does it help to make power by tuning the a/f, but it also makes the engine more responsive by doing so. I still love my SAFC.... but yea EVENTUALLY EU will replace it, lol
Thread
Thread Starter
Forum
Replies
Last Post
litch
4th Generation Maxima (1995-1999)
123
01-04-2024 07:01 PM
AaronL
5th Generation Maxima (2000-2003)
15
08-08-2020 10:31 AM
rbaker100
8th Generation Maxima (2016-)
4
09-25-2015 07:52 PM