Not enough accelerator travel for full throttle

[xrtim]

I'm running an Edelbbrock pro folw xt with the 90mm cable throttle body. I can't seem to get enough pedal movement to open the throttle fully, anyone had the same problem ?
The only way I can see of sorting this out is to make a smaller cable pulley and fit it to the throttle body or design / buy another linkage

[F.C.]

xrtim said:

I'm running an Edelbbrock pro folw xt with the 90mm cable throttle body. I can't seem to get enough pedal movement to open the throttle fully, anyone had the same problem ?
The only way I can see of sorting this out is to make a smaller cable pulley and fit it to the throttle body or design / buy another linkage

You could get a smaller quadrant, however you may be able to extend the length of the throttle pedal end a small amount, the further away from the pivot the greater the travel at the end.

[xrtim]

I think the smaller pulley from Edelbrock is the better solution if it exists, failing that I can make one. To extend the length of the throttle end will mean it has to go up and over the lower chassis rail, not a problem to do but then this will increase the angle that the cable enters the adjuster and it may start cutting it in half running through it (I'm not 100% happy with the angle it enters now).
I'll mail Edelbrock and see if they have an off the shelf solution, thanks for the reply

[F.C.]

xrtim said:

I think the smaller pulley from Edelbrock is the better solution if it exists, failing that I can make one. To extend the length of the throttle end will mean it has to go up and over the lower chassis rail, not a problem to do but then this will increase the angle that the cable enters the adjuster and it may start cutting it in half running through it (I'm not 100% happy with the angle it enters now).
I'll mail Edelbrock and see if they have an off the shelf solution, thanks for the reply

Yeah sorry, it was a given to move the adjuster.

[xrtim]

I have decided to modify the cable wheel, figured I’ve got nothing to lose as its no good as it is. Luckily there is a flat thicker plate on the throttle body side so I will make a smaller quadrant and weld it in. I have measured a maximum cable pull of 42mm but to get this I may need to make a more flexible ankle joint so guessing at 35mm and test to see if it’s comfortable

[Boosted LS1]

Did you find the source of the ticking noise or are you happy with things as they are?

[xrtim]

Engine hasn’t run since, I have been concentrating on the charge cooling system but intended to get the engine running sooner. I couldn’t find anything internally that caused it so I will get the engine going again and let it run for a while to let the lifters fully pump up once I sort the throttle problem, fingers crossed I will be back to where I was months ago

[xrtim]

Engine hasn’t run since, I have been concentrating on the charge cooling system but intended to get the engine running sooner. I couldn’t find anything internally that caused it so I will get the engine going again and let it run for a while to let the lifters fully pump up once I sort the throttle problem, fingers crossed I will be back to where I was months ago

[xrtim]

Old cable wheel vs new

[xrtim]

Welded and fitted, now I have full throttle. Start up and Megasquirt tuning next (fingers crossed)