Notices
Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.

Running lean, what's the problem?

Thread Tools
 
Search this Thread
 
Old May 3, 2005, 01:12 PM
  #46  
Account Disabled
Thread Starter
iTrader: (3)
 
plokivos's Avatar
 
Join Date: May 2004
Location: Atlanta
Posts: 4,902
Likes: 0
Received 4 Likes on 4 Posts
I will, when I get my walbro installed.

did you see my spark plugs?
Old May 7, 2005, 10:04 PM
  #47  
Account Disabled
Thread Starter
iTrader: (3)
 
plokivos's Avatar
 
Join Date: May 2004
Location: Atlanta
Posts: 4,902
Likes: 0
Received 4 Likes on 4 Posts
ok, walbro installed, after 4000 or so, the AFR ratio went down off the chart, below 10.

so it's running super rich.

got my dynoflash, with just tbe(no cat) and mbc set to 22psi, tapering to 21psi and made 304 whp, 308tq.

but al turned it down a bit to 280 something whp and 309 tq.

It was the fuel pump all along. I guess at higher psi or in colder weather, it just doesn't deliever enough fuel right past when you spool up fully.

thanks guys.

I'll post some dyno sheets and spark plug pix. Will change my spark plug to bpr7iex (iridium) from bpr7es.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nj1266
ECU Flash
23
Jul 15, 2009 04:29 PM
riceball777
Evo Engine / Turbo / Drivetrain
41
Feb 6, 2007 07:14 AM
KK
Drag Racing
0
Jan 28, 2005 11:49 AM



Quick Reply: Running lean, what's the problem?



All times are GMT -7. The time now is 12:32 PM.