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Search: Posts Made By: mcollinstn
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Forum: General Q & A
07-03-2020, 10:00 PM
Replies: 15
Views: 698
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: 911
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
06-30-2020, 10:25 PM
Replies: 1
Views: 222
Posted By mcollinstn

You really aren't supposed to shift out of gear...

You really aren't supposed to shift out of gear without the input shaft spinning. You may have bent the shift arm where the cable attaches.
Forum: General Q & A
06-30-2020, 10:18 PM
Replies: 15
Views: 698
Posted By mcollinstn

MkIV oval port heads are not "large oval ports"....

MkIV oval port heads are not "large oval ports". Most of the pre 1990 ovals were "peanut port" heads. The 932 heads are large ovals.

Now,, you mention a Chevelle. You will REALLY be doing the...
Forum: General Q & A
06-30-2020, 10:00 PM
Replies: 2
Views: 158
Posted By mcollinstn

You have a "right" a "left" a "pressure" and a...

You have a "right" a "left" a "pressure" and a "return" line. Which line are you wanting to upsize?
Forum: General Q & A
06-30-2020, 09:57 PM
Replies: 10
Views: 339
Posted By mcollinstn

Nobody has pointed out that battery switches have...

Nobody has pointed out that battery switches have current ratings. "NORMAL" perkos are in the 375 amp (momentary) range. Dumping 4 batteries thru a single medium duty switch? I hope you mount the...
Forum: General Q & A
06-25-2020, 11:28 AM
Replies: 29
Views: 1,339
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: 314
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...
Forum: General Q & A
05-24-2020, 06:35 PM
Replies: 10
Views: 647
Posted By mcollinstn

Duty Cycle and ambient temperature extremes are...

Duty Cycle and ambient temperature extremes are the factors that you must consider.
A shop compressor in a 40-90 degree shop, cutoff pressure of 135 psi and cut on of 110 psi, rarely running...
Forum: General Q & A
05-24-2020, 06:21 PM
Replies: 10
Views: 507
Posted By mcollinstn

Had a Nova 210XL with a 260HP 350ci Mercruiser...

Had a Nova 210XL with a 260HP 350ci Mercruiser (Alpha sized drive - before they called them Alphas).
Boat ran 44mph at 4400 with a 21P standard stainless 3 blade, 2 people, less than 1/2 tank of...
Forum: General Q & A
05-24-2020, 06:07 PM
Replies: 20
Views: 1,322
Posted By mcollinstn

Just because the drive is removed, a rattling...

Just because the drive is removed, a rattling coupler will still rattle.
Forum: General Q & A
05-24-2020, 06:01 PM
Replies: 9
Views: 432
Posted By mcollinstn

Are you reporting that your boat DID turn up...

Are you reporting that your boat DID turn up correct rpm with 3B 26 props, and will only turn 4200 now with only the 4B prop change? Or are you saying you don't know what it was turning with the 3...
Forum: General Q & A
03-27-2020, 12:18 AM
Replies: 6
Views: 437
Posted By mcollinstn

Electric Diaphragm pumps will flow fuel as long...

Electric Diaphragm pumps will flow fuel as long as there is a higher pressure on its inlet vs its outlet.
Electric gear pumps or other positive displacement pumps wont flow unless they are spinning...
Forum: General Q & A
03-23-2020, 12:00 AM
03-19-2020, 10:38 PM
Replies: 16
Views: 1,693
Posted By mcollinstn

GLMs get better reviews than Sierras. Whatever...

GLMs get better reviews than Sierras.
Whatever you get, though, be sure to flat-file the gasket surfaces until they are within 0.002" flatness. I've seen machining irregularities at the flanges and...
Forum: General Q & A
03-19-2020, 10:30 PM
Replies: 26
Views: 1,832
Posted By mcollinstn

It depends on WHAT was in it when it was stored. ...

It depends on WHAT was in it when it was stored.
If it was "ETHANOL ENRICHED" gasoline, you should expect it to be nasty. If it was STRAIGHT GASOLINE, you will be in better shape. If you added...
Forum: General Q & A
03-19-2020, 09:13 PM
Replies: 2
Views: 346
Posted By mcollinstn

You've lost a ground somewhere. Gonna have to...

You've lost a ground somewhere.
Gonna have to retrace your every move. Probably knocked something loose.
03-09-2020, 09:50 PM
Replies: 15
Views: 1,437
Posted By mcollinstn

Rydlyme. ...

Rydlyme.

https://controlscentral.com/tabid/63/ProductID/386017/chemical-ryd05-rydlyme-5-gallon-container.aspx
03-09-2020, 09:21 PM
Replies: 13
Views: 1,133
Posted By mcollinstn

Your EGT at idle is going to be in the 600 degree...

Your EGT at idle is going to be in the 600 degree range. You should NEVER shut off water flow to the exhaust manifold itself. If you just absolutely HAVE TO try this, then use ported plates at the...
Forum: General Q & A
03-09-2020, 12:01 AM
Replies: 5
Views: 539
Posted By mcollinstn

It was most likely a boost-referenced fuel...

It was most likely a boost-referenced fuel pressure regulator.
I'm not familiar with that particular kit, but open loop fuel injection setups running Prochargers will need to increase fuel flow...
Forum: General Q & A
03-02-2020, 09:25 AM
Replies: 13
Views: 805
Posted By mcollinstn

Thunderbolt IV runs off straight 12v. No ballast....

Thunderbolt IV runs off straight 12v. No ballast. The amplifier box has an internal voltage regulator (IVR) for the trigger module. TBIV coils are rated at full 12v (just has 30% more windings on the...
Forum: General Q & A
03-01-2020, 11:24 PM
Replies: 13
Views: 805
Posted By mcollinstn

You should plan on a compression test and leak...

You should plan on a compression test and leak down test on your motor before you decide whether to freshen up the rings, etc. Your motor could have a ton of hours on it and depending on the oil...
Forum: General Q & A
03-01-2020, 11:08 PM
Replies: 6
Views: 519
Posted By mcollinstn

I'm trying to understand your concerns. The...

I'm trying to understand your concerns.
The Mallory Promaster coil is designed to operate in a ballasted system, and so is the Magnetic module. Are you somehow thinking that running the system at...
01-16-2020, 11:51 PM
Replies: 8
Views: 821
Posted By mcollinstn

I was under the impression that ALL GM 496 motors...

I was under the impression that ALL GM 496 motors have nodular iron cranks, forged steel rods, and hypereutectic cast pistons.
Forged pistons would be a no brainer for a whippled motor, and I would...
01-16-2020, 07:26 AM
Replies: 23
Views: 2,710
Posted By mcollinstn

I listened to the brief video. I cant tell squat...

I listened to the brief video. I cant tell squat regarding the sound. Too brief, too much echo.
The water pump is not too bad, but the less wobble, the better as far as bearing life.
I have one on...
Showing results 1 to 25 of 500
 


 
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