New to me Skater.
05-27-2007, 08:58 AM
#283
Registered
Thread Starter
Well the fun begins.
Tunning the engines in the boat.
We ran her Thursday. First season run!
Jetting is way off. Way to fat!
The Primary Power valves are open all the time.
This is due to the PSI making boost as soon as you
open the throttle.
The P/V is boost referenced.
Jetting is 86 primary with PV. Secondaries 96 with PV plugged.
1-1 linkage
The carbs are side saddle.
When standing behind the boat on the trailer the exhaust pipe
on the side of the engine which has the Pv,s (primarys)
are wicked black.
Plugs reveal the PSI is favoring the rear cylinders big time.
makes sense if ya notice the discharge of the blowers.
(Pie Shape)
May have to stagger jets leaning rears and riching fronts.
One engine went to 240 on the water temp
Forgot the IR gun at the shop. I felt the head it was Hot
to the touch.
Had 24lbs water pressure on that engine.
I shut it down then it cooled right down and took it
easy back to the dock.
I will pull the water pump make sure the impellers
didnt throw a blade.
I am not sold on dedicating one stage for the intercooler.
I will feed both stages of the waterpump back to the engine.
I will put the feed for the intercooler back on the
Sea strainer.
This worked last season.
Why didnt ya just leave things alone?
This was the ? all my friends ask.
I replied. if I bought a brand new boat the first thing I
would do is tear it down to make it faster!
Tunning the engines in the boat.
We ran her Thursday. First season run!
Jetting is way off. Way to fat!
The Primary Power valves are open all the time.
This is due to the PSI making boost as soon as you
open the throttle.
The P/V is boost referenced.
Jetting is 86 primary with PV. Secondaries 96 with PV plugged.
1-1 linkage
The carbs are side saddle.
When standing behind the boat on the trailer the exhaust pipe
on the side of the engine which has the Pv,s (primarys)
are wicked black.
Plugs reveal the PSI is favoring the rear cylinders big time.
makes sense if ya notice the discharge of the blowers.
(Pie Shape)
May have to stagger jets leaning rears and riching fronts.
One engine went to 240 on the water temp
Forgot the IR gun at the shop. I felt the head it was Hot
to the touch.
Had 24lbs water pressure on that engine.
I shut it down then it cooled right down and took it
easy back to the dock.
I will pull the water pump make sure the impellers
didnt throw a blade.
I am not sold on dedicating one stage for the intercooler.
I will feed both stages of the waterpump back to the engine.
I will put the feed for the intercooler back on the
Sea strainer.
This worked last season.
Why didnt ya just leave things alone?
This was the ? all my friends ask.
I replied. if I bought a brand new boat the first thing I
would do is tear it down to make it faster!
Charter Member
05-29-2007, 11:01 AM
#285
Registered
Join Date: Dec 2006
Location: Tucson, AZ
Posts: 495
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Well the fun begins.
Tunning the engines in the boat.
We ran her Thursday. First season run!
Jetting is way off. Way to fat!
The Primary Power valves are open all the time.
This is due to the PSI making boost as soon as you
open the throttle.
The P/V is boost referenced.
Jetting is 86 primary with PV. Secondaries 96 with PV plugged.
1-1 linkage
The carbs are side saddle.
When standing behind the boat on the trailer the exhaust pipe
on the side of the engine which has the Pv,s (primarys)
are wicked black.
Plugs reveal the PSI is favoring the rear cylinders big time.
makes sense if ya notice the discharge of the blowers.
(Pie Shape)
May have to stagger jets leaning rears and riching fronts.
One engine went to 240 on the water temp
Forgot the IR gun at the shop. I felt the head it was Hot
to the touch.
Had 24lbs water pressure on that engine.
I shut it down then it cooled right down and took it
easy back to the dock.
I will pull the water pump make sure the impellers
didnt throw a blade.
I am not sold on dedicating one stage for the intercooler.
I will feed both stages of the waterpump back to the engine.
I will put the feed for the intercooler back on the
Sea strainer.
This worked last season.
Why didnt ya just leave things alone?
This was the ? all my friends ask.
I replied. if I bought a brand new boat the first thing I
would do is tear it down to make it faster!
Tunning the engines in the boat.
We ran her Thursday. First season run!
Jetting is way off. Way to fat!
The Primary Power valves are open all the time.
This is due to the PSI making boost as soon as you
open the throttle.
The P/V is boost referenced.
Jetting is 86 primary with PV. Secondaries 96 with PV plugged.
1-1 linkage
The carbs are side saddle.
When standing behind the boat on the trailer the exhaust pipe
on the side of the engine which has the Pv,s (primarys)
are wicked black.
Plugs reveal the PSI is favoring the rear cylinders big time.
makes sense if ya notice the discharge of the blowers.
(Pie Shape)
May have to stagger jets leaning rears and riching fronts.
One engine went to 240 on the water temp
Forgot the IR gun at the shop. I felt the head it was Hot
to the touch.
Had 24lbs water pressure on that engine.
I shut it down then it cooled right down and took it
easy back to the dock.
I will pull the water pump make sure the impellers
didnt throw a blade.
I am not sold on dedicating one stage for the intercooler.
I will feed both stages of the waterpump back to the engine.
I will put the feed for the intercooler back on the
Sea strainer.
This worked last season.
Why didnt ya just leave things alone?
This was the ? all my friends ask.
I replied. if I bought a brand new boat the first thing I
would do is tear it down to make it faster!
Racer
05-30-2007, 08:42 AM
#287
Registered
Jerry
With the one to one linkage do u think are better off without the powervlaves?
86 primary and 96 secondary sounds like is about right. Is that a 1090?
With the one to one linkage do u think are better off without the powervlaves?
86 primary and 96 secondary sounds like is about right. Is that a 1090?
Platinum Member
06-04-2007, 10:25 AM
#290
Registered
Thread Starter
Thanks Everyone for all the roses!
1090,s
Yes I plugged the PV considering it makes boost the second ya open the throttle.
Took the alchol needle and seats out they were dripping a little.
Running the .130 vitons now.
Ran it again still way to fat.
I think blower speed is a little slow also.
I am back to progressive linkage and jetting is
92 94 94 96 secondarys no p/v
86 88 88 90 primarys no p/v
Timing 32 locked.
I went back to running both stages of the pump to the engine
and force feeding intercooler off the Sea strainer.
Will make another run maybe Wednesday.
Yes I plugged the PV considering it makes boost the second ya open the throttle.
Took the alchol needle and seats out they were dripping a little.
Running the .130 vitons now.
Ran it again still way to fat.
I think blower speed is a little slow also.
I am back to progressive linkage and jetting is
92 94 94 96 secondarys no p/v
86 88 88 90 primarys no p/v
Timing 32 locked.
I went back to running both stages of the pump to the engine
and force feeding intercooler off the Sea strainer.
Will make another run maybe Wednesday.
Last edited by KNOT-RIGHT; 06-04-2007 at 10:27 AM.
