Single throat carbs, Velocity Stacks

**FMP** · 03-31-2015, 05:39 PM

Single throat carbs , who makes or has stacks . Not a big item these days but who knows? MERC ,Tillotson TC.

**frank jackson** · 03-31-2015, 05:53 PM

to fit What ?

**FMP** · 03-31-2015, 06:03 PM

TC's...

**frank jackson** · 03-31-2015, 06:10 PM

you may find some at aim in Ottawa , but I think you will be looking a long time or make your own .....

**FMP** · 03-31-2015, 06:16 PM

I think I tried him. I can get them made local. A company in Ca that does tuner cars fuel inj. will make them, fancy colours too , but size of run and price.

**frank jackson** · 03-31-2015, 06:53 PM

Make them , you can do it .

**FMP** · 03-31-2015, 06:57 PM

Cut them from Al, or mold glass and resin.

**frank jackson** · 03-31-2015, 10:52 PM

Both ways will work .

**dwilfong** · 04-01-2015, 05:53 AM

A 180 deg radius transition is the best for flow into the carb.
Look at the intake on a jet air liner eng.

**FMP** · 04-01-2015, 08:09 AM

Maybe an inch length with 5-10* taper to a 180* radius . Some say an extra few cfm and smoother signal.

**Mr. Demeanor** · 04-01-2015, 08:44 AM

I lost power with stacks.

**FMP** · 04-01-2015, 08:51 AM

Did the stacks get too close to the cowl and restrict flow?

**99fxst99** · 04-01-2015, 08:58 AM

Originally Posted by Mr. Demeanor

I lost power with stacks.

I have heard of that with automotive applications. Sometimes some turbulence helps fuel atomization.

**FMP** · 04-01-2015, 09:46 AM

Sure , but it's all about the signal from the case out through the carbs. Two stroke tuners handbook , i'm sure it written . The stack helps the cfm at carb mouth.

**FMP** · 04-01-2015, 10:09 AM

Did you try a rejet?

User Tag List

Thread: Single throat carbs, Velocity Stacks

Thread Tools

Display

Single throat carbs, Velocity Stacks

Posting Permissions