Welcome to the SR20 Community Forum - The Dash.
Register
SR20 forum logo

Thread: SR 20ve leans out in high rpm

+ Reply To Thread
Posts: 1-10 of 44
2012-11-23 04:59:06
#1
SR 20ve leans out in high rpm
ok here is my setup: Sr20ve,n1 cams,ssac with 3" exhaust...
tried tuning the car on the dyno some time ago and realized the car was very lean,changed the pump on the spot (had in a stock sr20 pump,changed to a bosch) same problem,installed a walbro 255 today along with an aem wideband car is still leaning out,wen i say lean i mean 17.1 to --- on the aem ...tried another distributor also ,sometimes it also flutters in high rpm in 1st and 2nd gears..any suggestions
i made a video

vvl lean video by sharktem | Photobucket
Last edited by sharktem on 2012-11-23 at 16-15-55.
2012-11-23 05:24:56
#2
what ECU, MAF, injectors, FPR?
2012-11-23 06:08:32
#3
Originally Posted by ny5speed
what ECU, MAF, injectors, FPR?

custom chipped ecu
stock ve maf
stock injectors
stock fpr
2012-11-23 07:44:54
#4
N1 cams with stock springs?
2012-11-23 09:08:40
#5
Have you:

1) monitored fuel pressure while running up to higher RPM?
2) changed fuel filter?
3) added fuel in the fuel map at RPMs after your cams switch over?
2012-11-23 10:13:47
#6
Check your exhaust too make sure you don't have any cracks in the header too.
2012-11-23 10:56:56
#7
Does a leak on exhaust make less hp
2012-11-23 12:02:33
#8
Originally Posted by Storm88000
N1 cams with stock springs?


What does it have to do with his problem?
2012-11-23 12:26:30
#9
Originally Posted by billc
Have you:

1) monitored fuel pressure while running up to higher RPM?
2) changed fuel filter?
3) added fuel in the fuel map at RPMs after your cams switch over?


1)i have a fuel pressure gauge installed under the hood,cant see @ high rpm cuz of the launch control. its ok @ idle

2) yes...gonna change it again today

3) alot of fuel!
2012-11-23 12:28:55
#10
Originally Posted by BlueRB240
Check your exhaust too make sure you don't have any cracks in the header too.

had a leak wen i just installed the ssac,the car wasnt fluttering then,fixed the leak though,this problem (fluttering) started just weeks ago...so no exhaust leak
+ Reply To Thread
  • [Type to search users.]
  • Quick Reply
    Thread Information
    There are currently ? users browsing this thread. (? members & ? guests)
    StubUserName

    Back to top