bulls eyes

[backonblack]

Ok I heard of guy's adding them but has anyone tested the results?
Thanks for any info.
b.o.b

 

[RTX Meirda]

I put 6 in the lid and 2 TPI low boys in the sides.

At -12C, the air/fuel ratio is 12.5 to 1.

I think I am going to add a few more.

I have invested over $100 in valves so far....it would be better to buy an air box mod from Ulmer in my opinion.

 

[backonblack]

I bought some uni flow filters. They 1" dia. with a filter element, they come 6 in pac. They cost $8.00 a pack, I bought 2 packs. Haven't installed them yet. I was wondering if any tried something simular and what kind of performance gain they were seeing.
Thanks:b.o.b.

 

[170plus]

how do you know the air fuel mixture was 12.5/1 at -12c ?did you use a meter in the exhaust ?i have modded my air box also,was this fuel ration at idle or at top end rpm ?

 

[RTX Meirda]

how do you know the air fuel mixture was 12.5/1 at -12c ?did you use a meter in the exhaust ?i have modded my air box also,was this fuel ration at idle or at top end rpm ?

I installed a wideband o2 sensor.

That ratio seems to stay at 12.4 to 12.6 while at full throdle with the holes in the airbox that I added..

 

[mark]

Has anyone tried these in the bottom of their airbox? Bro in law and I were talking about trying it. Would like to anyone elses setup

 

[TurboJamie]

how do you know the air fuel mixture was 12.5/1 at -12c ?did you use a meter in the exhaust ?i have modded my air box also,was this fuel ration at idle or at top end rpm ?

I installed a wideband o2 sensor.

That ratio seems to stay at 12.4 to 12.6 while at full throdle with the holes in the airbox that I added..

You might gain some from a little extra fuel up top.

 

[RTX Meirda]

how do you know the air fuel mixture was 12.5/1 at -12c ?did you use a meter in the exhaust ?i have modded my air box also,was this fuel ration at idle or at top end rpm ?

I installed a wideband o2 sensor.

That ratio seems to stay at 12.4 to 12.6 while at full throdle with the holes in the airbox that I added..

You might gain some from a little extra fuel up top.

Are you saying to richen the mixture? I was thinking to lean the mixture by adding a few more bulls eyes. I was going to try and shoot for 12.8 to 1 or so.

 

[AIRWOLF]

how do you know the air fuel mixture was 12.5/1 at -12c ?did you use a meter in the exhaust ?i have modded my air box also,was this fuel ration at idle or at top end rpm ?

I installed a wideband o2 sensor.

That ratio seems to stay at 12.4 to 12.6 while at full throdle with the holes in the airbox that I added..

You might gain some from a little extra fuel up top.

Are you saying to richen the mixture? I was thinking to lean the mixture by adding a few more bulls eyes. I was going to try and shoot for 12.8 to 1 or so.

MORE AIR NEEDS MORE FUEL

 

[TurboJamie]

Yeah I would stay around 12.1 with that thing to make peak power IMO though it would probably need to be varified on a radar gun or a dyno for testing.