Clone blue plate weenie pipe vs big pipe.

[racing promotor]

How many rpms lower will the weenie pipe nka rule be than an akra big pipe.
Thanks

 

[OVALTECH1]

Not the answer your looking for but in unrestricted form 66/6700 weenie and 69/7100 big piped. I imagine blue plate being pretty close to that gap in rpm as well.

 

[racing promotor]

Ya I was thinking 300 less just not sure, wants gear it according.
Thanks that info helps some never ran weenie pipe on unrestricted either.

 

[Dover Power]

I aggree with the 300 rpm range on average

 

[racing promotor]

Well after running today we were best at 6100 rpm so for us it ended up 400 rpm less

 

[OVALTECH1]

Good deal

 

[Thussak16]

What is a good pipe for akra blue plate? New to this trying to get my daughter faster

 

[Kj26]

What is a good pipe for akra blue plate? New to this trying to get my daughter faster

Are you looking for big or small pipe ?

 

[Thussak16]

Are you looking for big or small pipe ?

I honestly dont know which one I'm supposed to run

 

[Kj26]

When you figure that out, we can help you. I might even have a couple weenie pipes laying around.

 

[racing promotor]

I honestly dont know which one I'm supposed to run

If its AKRA rule should be big pipe, but confirm that, if allowed you want to run the big pipe for sure.

 

[Thussak16]

If its AKRA rule should be big pipe, but confirm that, if allowed you want to run the big pipe for sure.

It is the akra rules we go by, what big pipe do you guys recommend?

 

[racing promotor]

It is the akra rules we go by, what big pipe do you guys recommend?

I'll leave the engine guy's chime in, it's been awhile since we were in rookie clone don't remember specific brand but the .880 was best then.

 

[Big Chris]

An .880 to .885" 3 step header seems to work best.

 

[racing promotor]

It is the akra rules we go by, what big pipe do you guys recommend?

Thanks for posting Chris .

 

[TritonJrBluePlate]

An .880 to .885" 3 step header seems to work best.

Where is the .880 measurement taken from? I just measured the ID of the header on our Jr3 plate motor and it is 1.23" at the exit (muffler attach point) I assume this is not the correct spot.

 

[bpoirier]

Where is the .880 measurement taken from? I just measured the ID of the header on our Jr3 plate motor and it is 1.23" at the exit (muffler attach point) I assume this is not the correct spot.

The measurement is taken from where it bolts to the engine

 

[TritonJrBluePlate]

The measurement is taken from where it bolts to the engine

Yea I figured that. I’ve got two headers and don’t know what size they are. The flange is in the way of measuring it.

 

[bpoirier]

Yea I figured that. I’ve got two headers and don’t know what size they are. The flange is in the way of measuring it.

I use my digital calipers and get pretty close on most measurements

 

[Slick27]

Curious if this big pipe change is coming to NKA also.