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Search: Posts Made By: mcollinstn
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Forum: General Q & A
09-02-2020, 11:05 PM
Replies: 1
Views: 154
Posted By mcollinstn

Your description is vague and unclear. Post...

Your description is vague and unclear.
Post pictures with your description.
Forum: General Q & A
08-25-2020, 11:57 PM
Replies: 6
Views: 414
Posted By mcollinstn

In hot weather, E10 will be more likely to give...

In hot weather, E10 will be more likely to give vapor lock problems than straight gas. The vapor point temperatures are about 20 degrees apart.
Forum: General Q & A
08-24-2020, 11:24 PM
Replies: 46
Views: 1,099
Posted By mcollinstn

Coil won't have any effect on timing advance. ...

Coil won't have any effect on timing advance.
You should be seeing more than 30 degrees of timing advance by 3500 rpm.
Forum: General Q & A
08-15-2020, 06:24 PM
Replies: 21
Views: 1,150
Posted By mcollinstn

Short high rpm blasts in a lightweight screamer?...

Short high rpm blasts in a lightweight screamer? Or prolonged 6300 rpm in a boat that can handle that?

That's a lift number that is going to demand a lot out of your valvesprings and hydraulic...
Forum: General Q & A
08-14-2020, 10:55 PM
Replies: 5
Views: 362
Posted By mcollinstn

First step- set your float levels in the carb....

First step- set your float levels in the carb. Lots of times guys start "tuning" while float levels are crazy off.

With that cam, you probably need more initial timing.

Try this - hook up a...
Forum: General Q & A
08-14-2020, 10:33 PM
Replies: 13
Views: 548
Posted By mcollinstn

There is no Gen 4. It's a MkIV. But we knew...

There is no Gen 4. It's a MkIV. But we knew what you were talking about.

There are no problems with installing MkIV heads on a Gen6 block. You just have to run Gen6 head gaskets. If you put...
Forum: General Q & A
07-28-2020, 09:16 PM
Replies: 3
Views: 248
Posted By mcollinstn

Rectangle port heads = forged internals. Oval...

Rectangle port heads = forged internals.
Oval port heads = cast guts.
07-28-2020, 01:44 AM
Replies: 7
Views: 555
Posted By mcollinstn

Gasket prep should always include using a...

Gasket prep should always include using a straight edge to check your surfaces - running a flat file across surfaces will show you low and high spots.

1. Ultra Black is fine. Test fit the intake...
07-20-2020, 10:27 PM
Replies: 9
Views: 438
Posted By mcollinstn

:party-smiley-048:

:party-smiley-048:
07-19-2020, 03:20 PM
Replies: 9
Views: 438
Posted By mcollinstn

Tach needs a +12v wire, good ground wire, and...

Tach needs a +12v wire, good ground wire, and pulsing ignition signal. The "lighting" wire is not needed for the tach to work.

Make sure you show good 12 to 14 volts between the tach + and Gnd...
07-18-2020, 11:51 PM
Replies: 3
Views: 199
Posted By mcollinstn

All velvet drive output shaft nuts are standard...

All velvet drive output shaft nuts are standard (right hand) thread direction regardless of prop rotation. Lefty loosey.
Factory torque is around 200 ft lbs with blue loctite. Do not reuse the old...
Forum: General Q & A
07-17-2020, 10:54 PM
Replies: 24
Views: 740
Posted By mcollinstn

Zero Effort controls have adjustable stops at...

Zero Effort controls have adjustable stops at both ends of travel. SOME of the older ones have 2 cable attachment points, each w a different throw. I cant find a picture of one, though.
Forum: General Q & A
07-03-2020, 10:00 PM
Replies: 15
Views: 963
Posted By mcollinstn

If he's dead set on that crappy low compression...

If he's dead set on that crappy low compression non-squish setup, then you may want to look thru the Howard cam profiles to find a 225-ish cam with a tighter lobe separation. He will end up with more...
Forum: General Q & A
06-30-2020, 10:30 PM
Replies: 15
Views: 1,080
Posted By mcollinstn

Cable adjustment. Disconnect cable from carb....

Cable adjustment.
Disconnect cable from carb. Set idle speed with "stop screw".
Now, adjust cable so that when the throttle lever is back at idle, the cable pushes back a bit against the stop...
Forum: General Q & A
06-25-2020, 11:28 AM
Replies: 35
Views: 2,216
Posted By mcollinstn

110 psi at 6500-7000' elev is around 135psi sea...

110 psi at 6500-7000' elev is around 135psi sea level. That's ballpark for a blower motor that's intentionally built with lowish compression.
90 psi is 110psi sea level which indicates a sick...
Forum: General Q & A
06-25-2020, 11:19 AM
Replies: 8
Views: 420
Posted By mcollinstn

Anything can go 100mph if you throw enough power...

Anything can go 100mph if you throw enough power at it.
Your boat is not a 100mph boat. Any attempt to make it one will be fraught with insane expense and bad outcome. If somebody has a bet with you...
Showing results 1 to 16 of 16


 
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