"optimal" A/f ratio for supercharged 4.6

[98stangv8]

Hey guys,

I have a 98 block with a v2SQ...what is the optimal a/f ratio I should be shooting for when my car gets dyno tuned tomorrow morning?

Thanks!

 

[squeak93]

14.7 is ur static a/f...

12.5-13 depending on how safe want to go.

Lean is fast, fat is safe.....

 

[2002BLGT]

for wide open throttle with stock engine 11.8-11.5 and with built engine 11.7-12.0

 

[squeak93]

I tuned my 351 n/a fox to 11.5-12... was telling him a bit safer #'s for the blowers sake...

 

[CobraRed_96_GT]

14.7 is ur static a/f...

12.5-13 depending on how safe want to go.

Lean is fast, fat is safe.....

12.5-12.6 is where my car is safe - 13 would be too lean even for me

 

[2002BLGT]

12.5-12.6 is where my car is safe - 13 would be too lean even for me

anything higher than 12 is not considered safe with a blower

 

[PAzYearazzUP]

anything higher than 12 is not considered safe with a blower

Bingo! 11.9 Pea Yes Eye dare little blow machine is 10 is overkill is you shoot for the 11'somwhere is BLGT is not blowing lean up yer waste gate.

 

[CobraRed_96_GT]

anything higher than 12 is not considered safe with a blower

I don't have a blower. High compression with heads/cams. I'm saying his blower a/f recommendation is closer to my N/A range - and even still too lean

 

[the98stang]

On a forged motor and boost you can safely tune for 12 flat. On a stock engine I would say no more than 11.8 AFR . Be sure the timing is 16 or below if you are running pump gas...

 

[98stangv8]

Cool...around 12 then...I am at 13 now without the blower, just the engine...does that mean I am running lean or rich? Lower the number, the higher or lower the fuel content?

 

[CobraRed_96_GT]

Cool...around 12 then...I am at 13 now without the blower, just the engine...does that mean I am running lean or rich? Lower the number, the higher or lower the fuel content?

Low means rich. 13 is fine stock n/a. Most shoot for 12.9-13.1

 

[blubullett]

Mine is 11.6 to 11.8 and I passed emissions with flying colors (in california too) and my car runs great.

 

[squeak93]

Ignore me.... Posting at work causes dislexia(sp)....



11.5 for a blower..12.0 on a n/a. My counting was backwards for some reason... my bad.

 

[2002BLGT]

Cool...around 12 then...I am at 13 now without the blower, just the engine...does that mean I am running lean or rich? Lower the number, the higher or lower the fuel content?

whos tuning it ? hopefully not Haywood ?

 

[CobraRed_96_GT]

Ignore me.... Posting at work causes dislexia(sp)....



11.5 for a blower..12.0 on a n/a. My counting was backwards for some reason... my bad.

12.0 is too rich for a N/A 4.6

 

[billfisher]

you know, my opinion is"it depends". i noted the factory WOT a/f for the gt500 (11.8).

for my setup, it has the same c/r as the gt500(8.5:1) but i think i am going to risk a bit leaner. but my combustion chambers will have no sharps. and my temps will be cooler than a stock car(160).

 

[BK_CAULEY]

Bingo! 11.9 Pea Yes Eye dare little blow machine is 10 is overkill is you shoot for the 11'somwhere is BLGT is not blowing lean up yer waste gate.

what the **** are you babbling about?