Go Back  HomemadeTurbo - DIY Turbo Forum > Homemadeturbo > Engine Management
Detonation?  PLEASE LOOK @ MY BINS!!!!      ~~~FIXED~~~ >

Detonation? PLEASE LOOK @ MY BINS!!!! ~~~FIXED~~~

Engine Management eCtune , Crome , AFC , FMU , Zdyne , Hondata , EMS , TE , Uberdata Anything to control your fuel, spark needs!

Detonation? PLEASE LOOK @ MY BINS!!!! ~~~FIXED~~~

Old 04-02-2007, 02:00 PM
  #1  
1.0 BAR
Thread Starter
 
Join Date: Jan 2006
Posts: 328
Default Detonation? PLEASE LOOK @ MY BINS!!!! ~~~FIXED~~~

Argh... i hate when i type out a huge long thread, and then i get the "error" page when submitted and u gotta start ALL OVER AGAIN. So this time, i'm typing up the cliff notes.

So, heres my problem... I'm still having detonation or something above 4500rpm and full boost (10psi)
Can you all check out my ignition maps?

I have a built B18a1
Obd1 dizzy, obd1 harness, timing set @ 16* btdc
450dsm's w/ 10watt 10 ohm resisitors.
GM 3 bar
Final fuel multiplier is .652 to get nice air fuels in vaccuum, and in boost, a/f are ALL around 12.7 - 13.2 in vaccuum and boost.(yes a little lean for boost, but i have to get the detonating to stop so i can turn it a little richer.)


Idle is perfect... Purs like a quiet little kitten @ 650rpm and it spools quick. 10psi @ 3500rpm w/ a .63trim t3/t4

Even retarding the dizzy 100%, i get the same symptoms of the car falling on its face.
I think i have a bad basemap that i built off of. I used P30 code, but copied all the #'s for the values and side values to match off a basemap i got from http://www.pgmfi.org/twiki/bin/view/...efinitionCodes. The funny thing is that all the b18a and b18b obd1 basemaps from there were all funky w/ values all over the place!!!! i only found one or two that looked decent, so i went w/ them. YES< VTEC IS DISABLED... so is checksum routine.
I have disabled knock sensor, Oxygen sensor (open loop), and enabled debug mode.

Please look @ my maps, or let me know where i can get a RELIABLE basemap!!! Thanks.

Name:  ignitiontable.jpg
Views: 9
Size:  136.5 KB
Name:  ignitiongraph.jpg
Views: 9
Size:  90.4 KB


Name:  IMG_0706.jpg
Views: 6
Size:  106.8 KB

~Kevin
IowaTCoupe is offline  
Old 04-02-2007, 02:50 PM
  #2  
3.0 BAR
 
Join Date: Jun 2006
Posts: 3,256
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~crome~~~

Crome's for suckas.. Get one of these bad boys..







imburne is offline  
Old 04-02-2007, 03:11 PM
  #3  
1.0 BAR
Thread Starter
 
Join Date: Jan 2006
Posts: 328
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~crome~~~

hahaa, ---- FMU's. I gotta get this ignition runnin right... then i'm throwin my precicion 880's in and 20lbs!!!
IowaTCoupe is offline  
Old 04-02-2007, 06:41 PM
  #4  
1.5 BAR
 
Join Date: Sep 2003
Posts: 842
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~crome~~~

Try www.-------------, and look in the bin directory.
StanB is offline  
Old 04-03-2007, 11:17 AM
  #5  
3.0 BAR
 
Slo_crx1's Avatar
 
Join Date: Aug 2003
Location: C-dale, NEPA
Posts: 4,667
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~crome~~~

I dunno...seems like alot of timing is being pulled out. Even my first b16/sc61 setup ran more timing than that Are you sure it's detonation you're hearing?
Slo_crx1 is offline  
Old 04-03-2007, 11:23 AM
  #6  
1.5 BAR
 
Join Date: Apr 2006
Posts: 676
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~crome~~~

Your thought process should not be, "Hey, I might be hearing detonation, let me leave the AFRs at high almost 13:1 AFR". Your thought process should be, "Wow, I'm running lean and its causing me to detonate. Let me get my AFR in the 12.0:1 range or slightly richer and then re-evaluate the situation".
Inquisition is offline  
Old 04-03-2007, 11:50 AM
  #7  
3.0 BAR
 
Slo_crx1's Avatar
 
Join Date: Aug 2003
Location: C-dale, NEPA
Posts: 4,667
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~crome~~~

Originally Posted by Inquisition
Your thought process should not be, "Hey, I might be hearing detonation, let me leave the AFRs at high almost 13:1 AFR". Your thought process should be, "Wow, I'm running lean and its causing me to detonate. Let me get my AFR in the 12.0:1 range or slightly richer and then re-evaluate the situation".
You have a point there, but 12.5:1 should be plenty rich during boost. He can try fattening it up in the problem area and see if that works, but I've seen some boosted cars running into the mid 13's afr without any big issues.

Worth a shot though, although maybe you're raising cylinder temps to a detonation point by retarding the timing so much.
Slo_crx1 is offline  
Old 04-03-2007, 01:08 PM
  #8  
1.0 BAR
Thread Starter
 
Join Date: Jan 2006
Posts: 328
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~crome~~~

I found a nice map on xenocron... timing maps were much better...
CAR RUNS GREAT... just gotta re-tune the fuel maps, and hook up the detcan and go driving again

Turns out i was WAAAAY too retarded and the car was falling on its face... i was going in the wrong direction, and thats why the symptoms persisted.
IowaTCoupe is offline  
Old 04-03-2007, 06:08 PM
  #9  
0.0 BAR
 
Join Date: Dec 2002
Posts: 3
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~FIXED~~~

.....and this magic map was?
MoonScryer is offline  
Old 04-03-2007, 06:28 PM
  #10  
3.0 BAR
 
Walter's Avatar
 
Join Date: Apr 2006
Posts: 2,057
Default Re: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~FIXED~~~

Originally Posted by MoonScryer
.....and this magic map was?
x2 , post map here and we can see different between both maps..

glad u fixed it
Walter is offline  

Thread Tools
Search this Thread
Quick Reply: Detonation? PLEASE LOOK @ MY BINS!!!! ~~~FIXED~~~


Contact Us - Sitemap - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.