Notices
Evo General Discuss any generalized technical Evo related topics that may not fit into the other forums. Please do not post tech and rumor threads here.
Sponsored by: RavSpec - JDM Wheels Central

Missing at WOT/ weird afr

Thread Tools
 
Search this Thread
 
Old Jul 14, 2014, 11:10 AM
  #16  
Newbie
Thread Starter
iTrader: (6)
 
brunz44's Avatar
 
Join Date: Sep 2011
Location: n.j.
Posts: 97
Received 1 Like on 1 Post
Originally Posted by RussellDaniel
Regardless if 9K is just a limit or margin of rpm in your words, on a stock rod your gonna have a much bigger problem than a tune if you keep revving that high. Your gonna have a Big @$$ hole in the block. I would not recommend revving the stock block stock internals past 8k.

Also as far as the AF are you watching it while holding the throttle steady while cruising, if you let off the gas its gonna gonna dip then come back to around 14.7-15.2

Just took car out to monitor the afr and cruising freeway speeds car reads from 15-17.8 and then blank since aem does not read leaner then this, constantly fluctuating through numbers but is in a range of 15.6-17.8. During acceleration it reads closer to 14-15 steady. I didn't check WOT but coming home from the tuner it read 11.8-11.2 steady.

I understand the concern everyone has for the whole lunatic revving but like I said, I don't aim to hit such a high rpm every pull, but I was doing 8.5k often so I'm going to stop that n bring it down to 8k.

I'm confused on what the tuner did.
Brought car in saying I need a re tune because of sketchy afr, the car was missing up top. And that's it

What I got was:
-them not touching the plugs (which is not a big deal 5 minuets of my time).
-Then a dyno/tuning session on low boost where I put down 50 less hp( I never asked to get tuned on low boost and don't have the equipment to return it to full boost+ ebc not mbc) I was told once I turn it up I'd be at the same power.
Old Jul 14, 2014, 11:17 AM
  #17  
Evolved Member
iTrader: (9)
 
RussellDaniel's Avatar
 
Join Date: Oct 2012
Location: hinesville
Posts: 554
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by brunz44
Just took car out to monitor the afr and cruising freeway speeds car reads from 15-17.8 and then blank since aem does not read leaner then this, constantly fluctuating through numbers but is in a range of 15.6-17.8. During acceleration it reads closer to 14-15 steady. I didn't check WOT but coming home from the tuner it read 11.8-11.2 steady.

I understand the concern everyone has for the whole lunatic revving but like I said, I don't aim to hit such a high rpm every pull, but I was doing 8.5k often so I'm going to stop that n bring it down to 8k.

I'm confused on what the tuner did.
Brought car in saying I need a re tune because of sketchy afr, the car was missing up top. And that's it

What I got was:
-them not touching the plugs (which is not a big deal 5 minuets of my time).
-Then a dyno/tuning session on low boost where I put down 50 less hp( I never asked to get tuned on low boost and don't have the equipment to return it to full boost+ ebc not mbc) I was told once I turn it up I'd be at the same power.

I would take the car back to the tuner and see whats up, maybe have a boost leak test done as well.
Old Jul 14, 2014, 11:19 AM
  #18  
Evolved Member
iTrader: (18)
 
Ev0ikon's Avatar
 
Join Date: Jan 2004
Location: 3rd Rock {from = sun}
Posts: 3,677
Received 9 Likes on 9 Posts
9K RPM is for those that can't shift fast enough to stay in power band.
Old Jul 14, 2014, 11:23 AM
  #19  
Newbie
Thread Starter
iTrader: (6)
 
brunz44's Avatar
 
Join Date: Sep 2011
Location: n.j.
Posts: 97
Received 1 Like on 1 Post
Originally Posted by Ev0ikon
9K RPM is for those that can't shift fast enough to stay in power band.

Great joke ! Much funny . Still laughing !!!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
us_skinny
Evo Engine / Turbo / Drivetrain
11
Apr 6, 2015 09:57 PM
MacMan
ECU Flash
7
Dec 5, 2013 01:29 PM
ExViTermini
ECU Flash
2
Aug 2, 2013 09:55 AM
BillCosbysPudding
ECU Flash
7
Jan 31, 2012 04:20 PM
tsherriff
General Engine Management / Tuning Forum
6
Nov 29, 2007 11:20 AM



Quick Reply: Missing at WOT/ weird afr



All times are GMT -7. The time now is 08:20 AM.