First ride on 13 psi

[Blue shadow]

What a rush,I could not go any higher then 13 psi because that was the biggest pilot I had.I will turn the wasgate arm next time out to get it up to 16 psi.She was very rich on idle to 50 km so I change the fuel screws in from 1 1/2 turns to 1/2 a turn and was much better but still to rich.Should I go less on the fuel screws again.On mid and high range she just keeps pulling and pulling .I have one problem when starting off she stumbles for 1 or 2 seconds until she clears out.My engagement with the stock primary spring is only 2800 rpm,so I put the orange silver orange in and my engagement came to 3400 rpm and made the bottom end much better but still a stumble on the start.Running heavy hitters 63 grams base weight with 3/4 allen bolt in low end ,3/8 steel bolt in mid,3/8 steel bolt in tip.goes to 10200 rpm.What can I do to clear this up?THANKS

 

[Skydog]

Yea they come alive at 12+!!!

What size pilot you have in it?

Skydog

 

[Blue shadow]

stock

 

[Ted Jannetty]

If anything it should be lean at idle with stock pilots this well cause stumble at low end.

you should have 22.5 pilots, 2 turns, 145 mains, needles raised on notch and lighter springs like red.

Do you have a Wide band o2?

 

[Blue shadow]

Ted with the 130 mains the plugs are black in colour on top end.I am at sea level .She is hard to start when hot after a few runs.Not sure what to do now.

 

[Ted Jannetty]

Black plug color doesn't necessarily mean it is rich, there more than likely is some oil consumption that would make the plugs black.

You really need a wide band O2 to check your air fuels.

The CPR turbo is much like the one I run and I don't see why it would need less fuel especially if CPR uses a Pitot tube, (I don't know if it Does or not).

I don't like Pitot tubes they are totally unecessary.

 

[Blue shadow]

What is a pitot and were is it found ?Also the oil is going down when I run it hard.

 

[True Blue]

A Pitot is only on the Bender kit from
what i've heard and i think it is used as
a restrictor in the oil line. Is it possible
your getting oil blow by through the
system don't the CPR kit use a .30 jet
to help this?


Skydog or Spray25 should know this one
they are running Benders and been around
the block on setups. The Pitot sizes are
differant like 400, 700, 900 ????


TB

 

[Skydog]

The Pitot sizes are
differant like 400, 700, 900 ???? (YES)

It goes in the boost line and changes how much psi goes to the float blows.

In short, Bigger jet lets more air out and less psi going to the float bowls. (Leaner)

Smaller jet lets less air out more psi going to the float bowls. (richer)

 

[Blue shadow]

I have a 50 damn jet to the turbo side and a 105 pilot jet to the boost switch with 6 turns on the rod adjuster.It gives me 15 psi and it don t drop till I let go.I am only staying with this f8 with no nos.Now the cat guys are laughting and this is eating me up.

 

[True Blue]

"eating me up"

I wouldn't beable to sleep until i found out why.



TB

 

[yamrx1]

Hope you can get it figured out Blue Shadow good luck. This what we got for 25cm of no snow.

 

[Skydog]

Well i would check the leak down frist.

 

[Blue shadow]

I will be gone for the week so this weekend I will over all every thing ,hope to get it going right.THANKS again

 

[Skydog]

Yea i here you buddy! One thing you, will get it right! You will go back to the Cat boys and have the last laugh!! Dont worry!!!

Skydog