[Fot] Holley tuning

MadMarx tr4racing at googlemail.com
Fri Dec 26 05:30:17 MST 2014


Hi Guys,

hope you survived the first part of the end of year party zone.

I have a question about Holley carbs.

While racing the TR8 on a few events I figured out that throttle blips on
down shifts cause a hesitation on the engine.
This makes it difficult to engage the clutch without locking the rear
wheels.
If I step a little harder on the gas the engine is jumping too far up in
revs so the car is acceleration on the downshift, what I don't want in that
moment.
Acceleration is always great and smooth. Only when the engine comes down
from high revs and need a blip for down shift the hesitation comes.

What to do on the carb?
Making the accelerator squirt less or more?
It is a 4150 HP double pumper. The cam color is pink in position 1.
Injektor size is 31 or 34 which is not clearly readable.
Could also be that injector one is 31 and injector 2 is 34.



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