Page 1 of 1 1
Topic Options
#2435506 - 03/14/08 12:21 AM A/F question?
HabaneroSedan Offline
Sr Member


Registered: 01/30/07
Posts: 1238
Loc: Phoenix, AZ
so i have a ct-engineering (new comptech) supercharger on my 07 FA5. hit the dyno today and the shop i was at got scared by the a/f ration and didn't want to do another run. a/f was 12.9 - 13.2 and unfortunatley there is no ems for these cars yet so im stuck with the hondata/ct reflash for now. is this way to lean? am i asking for problems? i have a pdf of the run before they pulled of at 7600, but i'm not sure how to post a pdf? help please.
_________________________
2007 Civic Si Sedan: 10psi Supercharged

Top
Videos
#2435661 - 03/14/08 01:58 AM Re: A/F question? [Re: HabaneroSedan]
SamuraiSam Offline
Post Master Sr


Registered: 07/29/02
Posts: 8828
Loc: Bellingham, WA
That AF ratio depends on the power level. It would be fine at lower power levels and not OK at higher ones. Some 'tuners' really like super rich mixtures because they feel that it is safe, they are usually wrong. Regarding the PDF, there's no way to embed it on this forum. You'll have to either host it on a website and link to it, or convert it to an image file. If you can't convert it, just do a screen capture. If all of that sounds like jibberish, send me an email samhi.si@gmail.com and I'll do it for you
Top
#2442614 - 03/16/08 12:41 PM Re: A/F question? [Re: SamuraiSam]
HabaneroSedan Offline
Sr Member


Registered: 01/30/07
Posts: 1238
Loc: Phoenix, AZ
im having a wideband installed monday to see whats really up. if it is lean as well, im gonna get on the phone with hondata and find out whats wrong with my map.
_________________________
2007 Civic Si Sedan: 10psi Supercharged

Top
#2443869 - 03/16/08 09:41 PM Re: A/F question? [Re: HabaneroSedan]
cua0 Offline
Post Master Supreme


Registered: 02/04/01
Posts: 17270
Loc: Red Deer, Alberta, Canada
whats a FA5?
_________________________

Top
#2443886 - 03/16/08 09:47 PM Re: A/F question? [Re: cua0]
HabaneroSedan Offline
Sr Member


Registered: 01/30/07
Posts: 1238
Loc: Phoenix, AZ
 Originally Posted By: cua0
whats a FA5?
4 door si
_________________________
2007 Civic Si Sedan: 10psi Supercharged

Top
#2446323 - 03/17/08 03:00 PM Re: A/F question? [Re: HabaneroSedan]
PurduinaSi Offline
Post Master Sr


Registered: 04/16/04
Posts: 7857
Loc: Westchester, NY
Try and get that PDF up here so we can help you better. Was that AF only that high during higher RPM's or across the board? 12.9-13.2 is pretty lean for WOT on a boosted vehicle, but its not absolutely horrible. In my experience, most shops just like to tune very conservatively so that if anything breaks, it cant be blamed on them. Was the Hondata reflash that you have on the car now meant for the Comptech blower or is that just the normal reflash that is also used on N/A Si's?

Out of curiosity, what numbers did you put down?
_________________________



Top
#2446396 - 03/17/08 03:20 PM Re: A/F question? [Re: PurduinaSi]
SamuraiSam Offline
Post Master Sr


Registered: 07/29/02
Posts: 8828
Loc: Bellingham, WA



At 250hp, your AFR is absolutely fine.

Top
#2446429 - 03/17/08 03:25 PM Re: A/F question? [Re: SamuraiSam]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 19262
Loc: West By God Virginia
Yea..Sam's right..everything looks good.

Nice curve..

Good practice to watch the a/f when you are going WOT as much as possible..

Never know if you hit some bad gas or an injector locks up on ya..

_________________________
05 Berlina Black S2000 700whp / 500wtq
Built, not bought.

Top
#2446923 - 03/17/08 05:33 PM Re: A/F question? [Re: SiAdam]
HabaneroSedan Offline
Sr Member


Registered: 01/30/07
Posts: 1238
Loc: Phoenix, AZ
so you guys really think it's fine? i have been hearing that it's way to lean to drive. i'm thinking about aem fic to gas it up a bit, but if im really ok then i'll just wait for a k-pro. i got a UEGO today and i'll hook it up some time this week to see where i'm really at. thanks for the help!
_________________________
2007 Civic Si Sedan: 10psi Supercharged

Top
#2476579 - 03/26/08 08:25 PM Re: A/F question? [Re: HabaneroSedan]
HabaneroSedan Offline
Sr Member


Registered: 01/30/07
Posts: 1238
Loc: Phoenix, AZ
UEGO is running 12.1-12.6 at WOT. i'm good
_________________________
2007 Civic Si Sedan: 10psi Supercharged

Top
Page 1 of 1 1


Moderator:  M3Pilot or M3Driver, SiAdam, Professor Paki 
Hop to:
Shout Box

CSi Sponsors

DiGBiC Lighters
DiGBiC Lighters
DallasColo
Dallas Colocation
ClubSi.com Shirts
ClubSi-Shirts
GameStop
Black-Friday Specials
Big Brake Kits
StopTech.Sale BBK Clearance
Brake Kits
Buy Brake Kits
EBC Brake Kits
EBC Brake Kits
BuyBrakes
Brake Kits-Pads & Rotors Sets
StopTech Brake Kits
StopTech
StopTech NZ
StopTech
StopTech Australia
StopTech
Hawk Brake Pads
Hawk Brake Pads
Samys Camera
GoPros, Cameras, Gear
Brake Specials Near Me
Brake Specials Near Me
Brake Pad Coupons
Coupon Code "hondafetish"
Porsche Brakes
Porsche Brake Upgrades
2-Piece Rotors-Civic Type-R
2-Piece Civic Rotors
Advertisement

| Brake Pads | | How To Change Brake Pads | | Drilled Slotted Brake Kits Cheap | EBC Brake Kits | Performance Brake Kits | Brake Specials Near Me | How To Replace Brake Pads