33mm PWK's too big for Pro Circuits?

[Building my First]

I just traded some stock carbs for some 33mm PWK's. One of the carbs kept leaking and for some reason he didn't want to rebuild them. He has Pro Circuit pipes too and said they felt strong down low.

 

I thought 30mm's would be the max for the Pro Circuits, but I know it's a good trade.

 

My mods are in my sig, my porting is for CPI's with 35mm's but is supposed to perform good the my pipes and carbs, was just planning ahead when I paid for the porting.

[donkeypuncher]

I just traded some stock carbs for some 33mm PWK's. One of the carbs kept leaking and for some reason he didn't want to rebuild them. He has Pro Circuit pipes too and said they felt strong down low.

 

I thought 30mm's would be the max for the Pro Circuits, but I know it's a good trade.

 

My mods are in my sig, my porting is for CPI's with 35mm's but is supposed to perform good the my pipes and carbs, was just planning ahead when I paid for the porting.

 

you have bottom end pipes. you will lose bottom end power with the increased size of carbs. but, if you plan on running cpi's eventually, then i would say the 33's would work well.

[Building my First]

Anyone have any experience with Velocity Accelerators from FAST? Says they're no gimmick! I wonder if they would help until I changed pipes.

 

 

 

http://farmandsandtoys.com/partdetail.asp?partid=157

[donkeypuncher]

Anyone have any experience with Velocity Accelerators from FAST? Says they're no gimmick! I wonder if they would help until I changed pipes.

 

 

 

http://farmandsandtoys.com/partdetail.asp?partid=157

 

i dont personally have any experience with them but im sure ive seen a thread or two abouth them before. try a search, you should be able to dig up something on them.

[Snopczynski]

What exactly did an "All around" port job configure of in your signature?

[Building my First]

What exactly did an "All around" port job configure of in your signature?

 

The porting is designed to be used with CPI's and 35's. I know a guy that had the same port and had to sell his CPI's and carbs cause he needed some cash, he put some Pro Circuits with stock carbs back on the cylinders. It ran awesome, like it had an MX or trail port.

Edited August 11, 2009 by Building my First

[dajogejr]

If it's ported to run with 35's and CPI...it'll run fine with 33's and CPI. I never heard of porting for a certain pipe AND carb combo...

 

You won't be able to tell the difference between 33s and 35s...seat of the pants or a dyno.

[Snopczynski]

The cpi pipes and the pro circuit pipes are two entirely different rpm ranged pipes. If the port job works good with the cpi's, I dont see how it could have worked good with the pc's. Smaller carbs would be more appointed to work with pro circuits.

[2strokespirit]

I don't really know if this will answer your question, but I have a agg trail 4mm motor with PCs and 33mm PWKs.... This thing is a beast, there is TONS, I mean TONS of low end power with a very strong smooth band and still GOOD top end... You can "port for a pipe" but its backwards..........

PCs just impress me more and more.... Seriously....

 

[Building my First]

Turns out the guy measured them wrong. They are only 1 3/16" not 1 5/16", so they are 28mm PWK. It looks like they've been bored out, they measure 29.5,mm. Anyways I know these will work better with the rest of my mods so I'm happy with the trade.

[dajogejr]

For some reason, 28PWKs use a completely different body than the rest of the PWK series. They don't look like the 33, 35 or 39PWK series.

 

But they work just as well!