Dyno'd My Car

[Rosso Pintura]

You're starving it of fuel. Little mains and big air correctors.

[72MetallicMalaga]

On 5/22/2023 at 7:13 PM, 72MetallicMalaga said:

@jp5Touring see attached images for air corrector, emulsion tube, and main jet numbers (200, F11, 115)

I also added an image of the idle speed screw numbers as well (45, F9)

 

 

@jp5Touring did you ever get your lean issue sorted?

 

I finally have time to tinker with the carbs this month, might try just upping my mains to 120 or 125 to compensate for the 200 air corrector jets. As @Furry Camel states, motors starved for fuel in the upper rpm range on my motor.

[jp5Touring]

On 7/30/2023 at 5:50 PM, 72MetallicMalaga said:

 

@jp5Touring did you ever get your lean issue sorted?

 

 

@72MetallicMalaga I still have to adjust it a bit more.  I changed acc to 155 and still lean under full throttle. I'm running 130 mains, f16  e tubes and at 50f9 idle jets.  Runs pretty good at 3/4 throttle but will lean out at full throttle.

I'm not overly confident in my distributer so I purchased a 123 that I need to install still.

Just been crazy busy this Summer, hopefully next couple of weeks I can dig into it again.

thx

[Chris_B]

What AFR are you shooting for?

[72MetallicMalaga]

Im trying to go for anything between 13.5 and 14.7.

 

I think I was hovering around 14.3 until I hit 4500rpms, and then it would lean out to a bit above 15 or so.

[Chris_B]

Ouch. I usually aim for 12.5 to 13 above 5K RPMs or so.

[Son of Marty]

If memory serves me the f9 e-tubes are a bit richer at the top end than the f11's. The m10 does like to run on the lean side at top rpm's, but nothing too crazy on the lean side. this is for n/a engines, you booster just keep doing the Voodoo you do.