Gas Pedal Adjustment on Later Car

[Got the Bug]

Does anyone have any tips for adjusting the gas pedal height on a later model (2613) Superformance?

I did a quick inspection of several SPFs last week, and the correct gas pedal level appears to be about even with the brake pedal. On my car, the gas pedal is well above the brake pedal, which is awkward.

There's a bolt that goes through the gas pedal and I see a nylon bushing. I loosened the bolt up (didn't take the whole thing apart) to see if there was some sort of notch in the pedal arm that limits the upward movement, but didn't see anything.

Any ideas?

[madmaxx]

I would be interested to know also. I think the only adjustment may be pedal spacing, which would require you to remove the pedal rod and change plastic bushings??? Anyone have a write up??

[GEE TEE]

There are a couple of things that could be contributing to your problem. The first is the design of the pedal itself. I've noted more than one type on different SPF cars. Some of the gas pedals sit almost flush to the pedal arm extending down from the linkage shaft, on others, the pedal arm comes down and extends forward several inches so the gas pedal is even with the brake pedal. I don't know if the difference is due to a running change on the cars, an option for short people, or possibly an optional pedal to accomodate heel and toe driving at the track. I'm sure a call to Dennis Olthoff could solve that mystery.

I'm 6'2" tall and the guy I bought SPO2261 from was probably only 5'6". He may have had the extended gas pedal for his comfort (the clutch and brake pedals were adjusted fully forward too and he still had to slide the seat forward), but my pedal was about even with the brake pedal. I removed the pedal from the car and used my SAWZALL to cut the pedal off the arm, leaving about 1" of the arm on the back of the pedal. Then I cut 2.5" more off the horizontal portion of the arm and bolted the pedal back onto the end of the arm. I also adjusted my clutch and brake pedals to their furthest back position. Now I can drive the car with my legs under the steering wheel instead of beside it.

The other possible contributing factor could be your linkage adjustment. Your pedal should have a positive stop, like the floor, and it should NOT be when the carb hits WOT. Allowing the carbs WOT position be the pedal limit can lead to carb linkage damage and potentially to the carb sticking at WOT. To adjust, disconnect the linkage from the carb, push the gas pedal to the floor, adjust the carb linkage length so the carb is just at WOT. Make sure everything operates smoothly.

[Got the Bug]

I posted the same question on SCOF. One response so far, but it sounds like all of the pedal height adjustment is done via the linkage in the engine compartment.

One other thing that I noticed, is that the bolt that holds the pedal on keeps backing out. I think I'm going to try installing a very thin nylon washer with a thin lock washer to keep it from backing out.

[STEVE-O]

Originally Posted by Got the Bug

I posted the same question on SCOF. One response so far, but it sounds like all of the pedal height adjustment is done via the linkage in the engine compartment.

One other thing that I noticed, is that the bolt that holds the pedal on keeps backing out. I think I'm going to try installing a very thin nylon washer with a thin lock washer to keep it from backing out.

The bolt on my gas pedal kept backing out also. Putting loctite on the bolt solved the problem.

[scootter]

Hey Doug,

Have fun.I noticed when I put the new BG on my car, the carb would be at wot before the pedal hit the floor. NO GOOD! I had to re adjust all my linkage. I tried to use the top hole on the carb linkage so the pedal wouldn't be so touchy, but I could not get the adjustment to work right. So I ended up using the lower hole. I also added a short extension to the rod from the fire wall to the carb!

BTW, do like suggested. Disconnect the rod from the carb, put the pedal to the floor and carb at wot and adjust the rod just short of bottoming out the carb linkage. Then put the carb linkage back to idle and pull the pedal up and see where it is. Which hole on the carb linkage are you using?

Scott

[Got the Bug]

Originally Posted by scootter

Hey Doug,

Have fun.I noticed when I put the new BG on my car, the carb would be at wot before the pedal hit the floor. NO GOOD! I had to re adjust all my linkage. I tried to use the top hole on the carb linkage so the pedal wouldn't be so touchy, but I could not get the adjustment to work right. So I ended up using the lower hole. I also added a short extension to the rod from the fire wall to the carb!

BTW, do like suggested. Disconnect the rod from the carb, put the pedal to the floor and carb at wot and adjust the rod just short of bottoming out the carb linkage. Then put the carb linkage back to idle and pull the pedal up and see where it is. Which hole on the carb linkage are you using?

Scott

Scott,

My carb linkage is connected to the lower front hole. I just did a test and with the pedal on the floor, the carb hits WOT just short of bottoming out.

So, it sounds like I need to work with the two primary adjusting rods to see if I can lower the pedal height while maintaining the upper and lower limits.

Are you guys running a spring on the pedal? My car has a spring on the pedal , but it's my understanding that some people don't use it (they just rely on a double carb spring).

[scootter]

I would have to look. I took it off then put it on then took it off I think??????

If you want, I think I still have my old pedal you can compare look to see if it is welded in the same position.

Scott

[PANAVIA]

on 2734 there is a spring on the pedal and some spring in the linkage as well.

[Got the Bug]

I removed the spring from the pedal itself, and the pedal height is perfect and the linkage works like a charm. The linkage feels pretty much the same with and without the spring and I'm running two springs on the carb.