Pipe for Vac 91

[Joe Wiebelhaus]

What about the length ? I am at 12" cl to weld, dosent seem to crank enough rsssszzzzzz...........

 

[Stuart Barr]

11 1/2" to 11 3/4" seems to be a good range.

Stu

 

[dwilfong]

You can pull the 13cc macs to 11" if the setup and prop are right.

You have to open the stinger to .470 let it breath or it will just load up and not rev.

V cut 1667 from Mark S is the ticket on a rigger.

Send it to Norm for heat treating and it will survive.

 

[Scott Miller]

11 1/2" to 11 3/4" seems to be a good range.

Stu

I am at 11 3/4" for my SGX

 

[Tom Foley]

You can pull the 13cc macs to 11" if the setup and prop are right.

You have to open the stinger to .470 let it breath or it will just load up and not rev.

V cut 1667 from Mark S is the ticket on a rigger.

Send it to Norm for heat treating and it will survive.

HA HA HA !!!!

 

[Tom Foley]

You can pull the 13cc macs to 11" if the setup and prop are right.

You have to open the stinger to .470 let it breath or it will just load up and not rev.

V cut 1667 from Mark S is the ticket on a rigger.

Send it to Norm for heat treating and it will survive.

HA HA HA !!!!

You can pull the 13cc macs to 11" if the setup and prop are right.

You have to open the stinger to .470 let it breath or it will just load up and not rev.

V cut 1667 from Mark S is the ticket on a rigger.

Send it to Norm for heat treating and it will survive.

HA HA HA !!!! WTF do you need a V cut anything on a rigger for ?? You blowing smoke dude !!

 

[dwilfong]

http://www.intlwaters.com/index.php?showtopic=62630&hl=

1667 V cut in action................................

 

[dwilfong]

kinda a mute point any way.....................

Very few nitro boats race in are Dis any more......................

 

[Daniel's Racing]

Bore the thick wall CMB header and reduce the pipe diameter and it will telescope up in the header so no hot gases get to the coupler at all.

 

[Scott Miller]

Made this header on my dad's mill

 

[charles siler]

Al at AA racing has the rossi speed pipes and for a 91 VAC IS THE PIPE NO DOUBT!

 

[Al Hobbs]

Doc, either you and/or Mark have one of the A/A 80/90 muffled pipes on hand. Give it a try. It will turn a lot of rpm for you. That and the Rossi 90 pipe, which you or Mark already have should work well also.

 

[Ain'tSkered racing]

Against everyone's opinion I choose the rossi pipes from Al and I love them they work great on my 91 Evo and turn plenty of rpm's. Couldn't be happier with my choice I also went the thick wall header way and milled them down on my lathe works great

 

[Scott Miller]

Doc, either you and/or Mark have one of the A/A 80/90 muffled pipes on hand. Give it a try. It will turn a lot of rpm for you. That and the Rossi 90 pipe, which you or Mark already have should work well also.

Al can I get one of those Rossi pipes from you?

 

[Al Hobbs]

Scott you have a message.

 

[Tom Foley]

Against everyone's opinion I choose the rossi pipes from Al and I love them they work great on my 91 Evo and turn plenty of rpm's. Couldn't be happier with my choice I also went the thick wall header way and milled them down on my lathe works great

everyone ???

 

[charles siler]

Against everyone's opinion I choose the rossi pipes from Al and I love them they work great on my 91 Evo and turn plenty of rpm's. Couldn't be happier with my choice I also went the thick wall header way and milled them down on my lathe works great

everyone ???

Hell ya!

 

[Ain'tSkered racing]

Against everyone's opinion I choose the rossi pipes from Al and I love them they work great on my 91 Evo and turn plenty of rpm's. Couldn't be happier with my choice I also went the thick wall header way and milled them down on my lathe works great

everyone ???

You don't count you only race twice a year lol

 

[Tom Foley]

Against everyone's opinion I choose the rossi pipes from Al and I love them they work great on my 91 Evo and turn plenty of rpm's. Couldn't be happier with my choice I also went the thick wall header way and milled them down on my lathe works great

everyone ???

You don't count you only race twice a year lol

Aw come on man , don't hate LOL !