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Search found 3998 matches

by pmuller9
Thu Jul 02, 2020 2:52 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: How much nitrous do you use with a supercharger.
Replies: 5
Views: 39

Re: How much nitrous do you use with a supercharger.

djfalcon10 wrote:Yes I have the fuel pressure gauge mount on my hood so I can see at all times

Looks like you are good for the first test run.
Again don't let the nitrous on below 3500 rpm.
And pull an additional 4 degrees of ignition timing when the nitrous is activated.
by pmuller9
Thu Jul 02, 2020 9:38 am
Forum: Turbo, Supercharger, and Nitrous
Topic: How much nitrous do you use with a supercharger.
Replies: 5
Views: 39

Re: How much nitrous do you use with a supercharger.

You should be ok as long as the fuel system can supply enough fuel for both the carb and the nitrous system.
The fuel pressure should not be allowed to fall bellow Boost + 6
Do you have a way to monitor the fuel pressure just to be sure?
by pmuller9
Thu Jul 02, 2020 9:07 am
Forum: 240-300 "Big Block" Six Performance
Topic: Another idle contemplation -the 300 six "marinized" for watersport
Replies: 35
Views: 471

Re: Another idle contemplation -the 300 six "marinized" for watersport

Looks pretty strict. https://www.usawaterski.org/pages/divisions/3event/AWSATowboatManual.pdf The turbocharger takes some the exhaust energy that would have been wasted and returns that energy to the engine. A naturally aspirated engine has to work against intake manifold vacuum to draw air fuel mix...
by pmuller9
Wed Jul 01, 2020 11:00 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: How much nitrous do you use with a supercharger.
Replies: 5
Views: 39

Re: How much nitrous do you use with a supercharger.

I'm assuming it is a plate system under the carb? Is the regulator for the nitrous systems fuel pressure boost regulated? If not the intake manifold pressure is the same or may exceed the fuel pressure and there will be no fuel flow which will damage the engine. I don't see a problem with a 100 shot...
by pmuller9
Wed Jul 01, 2020 10:43 am
Forum: 240-300 "Big Block" Six Performance
Topic: Another idle contemplation -the 300 six "marinized" for watersport
Replies: 35
Views: 471

Re: Another idle contemplation -the 300 six "marinized" for watersport

But obviously a high torque low rpm engine with long stroke would do well at this. I remember 30 or 32 being top speed in competition. So let's look at the 300 six. A naturally aspirated 300 six can muster up between 325 and 350 ft lbs of torque at sea level. The rpm at which that occurs depends on...
by pmuller9
Tue Jun 30, 2020 5:50 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Another idle contemplation -the 300 six "marinized" for watersport
Replies: 35
Views: 471

Re: Another idle contemplation -the 300 six "marinized" for watersport

sdiesel wrote:Edis 6 with MS maybe and a long block with the magic numbers whatever they would be to give me huge torque down low.

I would think that you would want huge torque from 2000 to 5000 rpm and operate mostly at 4000 rpm for long high speed runs?

Boat props are usually geared high than the engine rpm.
by pmuller9
Mon Jun 29, 2020 7:55 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Help!....changed mainfold and carb and now nothing!
Replies: 4
Views: 138

Re: Help!....changed mainfold and carb and now nothing!

Either of those lines are under a vacuum not a pressure no matter where you connect them.
The only way a PVC valve can blow out is if there is excessive crankcase pressure.
I realize it is a newly rebuilt engine but do a compression test on all six cylinders anyway.
by pmuller9
Mon Jun 29, 2020 2:27 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Another idle contemplation -the 300 six "marinized" for watersport
Replies: 35
Views: 471

Re: Another idle contemplation -the 300 six "marinized" for watersport

... As far as lakes in WA state..., lake Coeur d'Alene ... Ah, snuck over for a quick run in Idaho, eh? 8) :nod: Yep, you caught us. Even though they put barges outside of the course the water was still rough enough to damage several flat bottom boats. The flat bottom of our boat pushed up into the...
by pmuller9
Mon Jun 29, 2020 12:16 am
Forum: 240-300 "Big Block" Six Performance
Topic: Another idle contemplation -the 300 six "marinized" for watersport
Replies: 35
Views: 471

Re: Another idle contemplation -the 300 six "marinized" for watersport

is that the same hydro as earlier, one you sent me some years ago, the miss dairy? and how did you pre heat the coolant? do you have figures on the dry weight of that engine? i recall the fuel management on that engine was tops with no surging or slosh on pretty rough waters Yes it is the same Hydr...
by pmuller9
Sat Jun 27, 2020 1:01 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Another idle contemplation -the 300 six "marinized" for watersport
Replies: 35
Views: 471

Re: Another idle contemplation -the 300 six "marinized" for watersport

Comparing apples to apples would be stock 300 to stock 351 or modified 300 to modified 351. Stock form or applying the same modification to both, the 351 wins. The reason for doing a 300 six is because you just want something different. I get that. A turbo 300 would get you the power you need and ma...
by pmuller9
Sat Jun 27, 2020 10:23 am
Forum: 240-300 "Big Block" Six Performance
Topic: Another idle contemplation -the 300 six "marinized" for watersport
Replies: 35
Views: 471

Re: Another idle contemplation -the 300 six "marinized" for watersport

Most if not all were the 351 Ford marine version which was little changed from the automotive version but for marine add one and other details. Since bellhousing should be same, would a 300 serve equally well or better in a tournament boat? Advantages? Disadvantages? The 300 would have less power t...
by pmuller9
Fri Jun 26, 2020 7:39 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240 to 300 upgrades
Replies: 15
Views: 546

Re: 240 to 300 upgrades

No racing, towing and torque over power - I don't know that I'd be trying to build a high compression, big valve, big cam engine. Pmuller, what's a realistic RPM ceiling for the cams listed? With my setup it does okay below 2k and falls at 4700. With 1.75 rockers it'll carry to 5k, but below 2k tak...
by pmuller9
Fri Jun 26, 2020 7:20 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Piston & connecting rods
Replies: 13
Views: 2814

Re: Piston & connecting rods

Not sure. But there's not really any expense to this adventure. All I asked was about any issues with doing so. Being that it's like 20 a rod to press pistons on or off, it would be great for saving some money. I didn't know it cost you that much to press piston pins. In that case bush the rods and...
by pmuller9
Fri Jun 26, 2020 11:33 am
Forum: 144-250 "Small Block" Six Performance
Topic: '62 Ranchero - 250 - Aluminum Head update
Replies: 150
Views: 7890

Re: '62 Ranchero - 250 - Aluminum Head update

Last set of Comp pushrods that was ordered very recently had terrible quality with some being bent. Go with Manton You can make an adjustable pushrod from a stock pushrod by cutting it in half. Then find a tight fitting bolt, cut off the head making it into a threaded rod and put two nuts in the mid...
by pmuller9
Fri Jun 26, 2020 10:42 am
Forum: 144-250 "Small Block" Six Performance
Topic: '62 Ranchero - 250 - Aluminum Head update
Replies: 150
Views: 7890

Re: '62 Ranchero - 250 - Aluminum Head update

Manton is an alternative source for custom pushrods.
I prefer Manton over Smith Brothers.
by pmuller9
Thu Jun 25, 2020 7:42 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 to 300 upgrades
Replies: 15
Views: 546

Re: 240 to 300 upgrades

The cams under consideration have around .500" valve lift using a 1.6 ratio rocker which is sufficient.
No need for a 1.75 ratio rocker.
by pmuller9
Thu Jun 25, 2020 12:25 am
Forum: 240-300 "Big Block" Six Performance
Topic: Piston & connecting rods
Replies: 13
Views: 2814

Re: Piston & connecting rods

There is nothing to be gained by going through the expense of making a floating piston for what you are doing.
What is the piston CD?
by pmuller9
Wed Jun 24, 2020 3:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Has anyone ever built something like this?
Replies: 63
Views: 8336

Re: Has anyone ever built something like this?

I would like to see Ford build some improved sportsman type blocks with a 4.250 bore, plus stronger bottom end webbing and some stronger cranks maybe longer stroke of up to 4.125. That could be a good bracket race motor a 351 Cu. In. Short block with Gramps proposed Aluminum head could be a lot of ...
by pmuller9
Wed Jun 24, 2020 12:19 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Has anyone ever built something like this?
Replies: 63
Views: 8336

Re: Has anyone ever built something like this?

I'm not sure where this is all going. The most the Ford 300 six bore spacing and other block dimensions will accommodate is a 4.25" cylinder bore. If you change the outer block dimensions then it is no longer a Ford 300 six and you might as well use one of the IH 500 cu in straight six blocks. ...
by pmuller9
Wed Jun 24, 2020 1:46 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 to 300 upgrades
Replies: 15
Views: 546

Re: 240 to 300 upgrades

If you are going to install other than stock 1.6 ratio rockers you should take .050 - .075" off the screw in base towers to help with geometry. As I did not do this I had to cut more thread on the studs. Like I said before I used 1.75 BBC roller rockers on my 240 head. The Harland Sharp Chevy ...
by pmuller9
Tue Jun 23, 2020 7:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

I know of someone who has a 240 block sleeved down to 3.7XX that he will part with. PM me if interested May be a dumb question, but what benefit would that have? I suspect the thinking there was thicker cylinder walls. The problem is the the smaller displacement won't allow the use of a Holset HX60...
by pmuller9
Tue Jun 23, 2020 1:33 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

I’ll look into the main caps! Would you just make them identical to the factory ones? You can keep it simple and just make them with flat sides and top. Just make sure the #5 cap is the correct thickness for the thrust bearing. https://www.dropbox.com/s/stxoauh3wj1wvlv/Main-Caps.jpg?raw=1 You will ...
by pmuller9
Tue Jun 23, 2020 11:08 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

You end up making up the difference in displacement with rpm but it is still a tall order. The bottom end is not going to stay together with just a "Halo" style girdle. The main caps crack at the higher rpm power bands because they are thin and brittle. The caps need to be ground flat at t...
by pmuller9
Tue Jun 23, 2020 9:35 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

Thanks for the video. Looks like those that are making a full pull have more than enough power and it becomes a matter of traction. That sled weight sure moves up in a hurry towards the end. Front end bounce looks like it can be a problem. Sounds like you will need to make big power at 6000 to 6500 ...
by pmuller9
Tue Jun 23, 2020 12:14 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

Will you be using a clutch or torque converter?
by pmuller9
Mon Jun 22, 2020 1:37 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

If they won't let you use a sectioned V8 head then I would look at the Sandwich head which is still using the stock head with the same valve angles.
Image
by pmuller9
Mon Jun 22, 2020 10:08 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

If the 300 cylinders are thin wall cast like the 200, FTF would know..I would down size the bore and keep the block walls as thick as possible, using good sleeves with the deck plate.. May have to do something with the valves hitting the cylinder wall..Sleeves with the shoulder on top will strength...
by pmuller9
Mon Jun 22, 2020 8:54 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

Thanks! I’ll add that to the list. I should have said earlier that I’ll also girdle the bottom end. As far as crankshaft i really don’t know. Is there anything off the shelf? I know i have read that some of the industrial engines had forged cranks but I haven’t looked into it very far yet. There ar...
by pmuller9
Sun Jun 21, 2020 8:51 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

At least use billet steel main caps with studs. The stock cast main caps will break under the rpm and load you will be running the engine at. You will need 2618 alloy pistons to hold up under this load. We use Diamond pistons but most of the 2618 alloy piston manufacturers will do just fine. Keep th...
by pmuller9
Sun Jun 21, 2020 6:16 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Backfiring through carb
Replies: 23
Views: 404

Re: Backfiring through carb

Do a compression test on all six cylinders and that will give you a good indication if there is a valve train problem.
by pmuller9
Sun Jun 21, 2020 4:26 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 alcohol pulling tractor
Replies: 31
Views: 520

Re: 300 alcohol pulling tractor

The 2 bolt main caps won't hold that much power. You would need to make a one piece lower block skirt that incorporates the main caps. If you use a deck plate then you can increase the cylinder length to 7.3" and use a billet stroker crank with a long connecting rod. I believe the class allows ...
by pmuller9
Sun Jun 21, 2020 2:13 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Backfiring through carb
Replies: 23
Views: 404

Re: Backfiring through carb

Now that the engine will run for short time check the timing with a timing light.
by pmuller9
Sun Jun 21, 2020 9:40 am
Forum: 240-300 "Big Block" Six Performance
Topic: Anyone offering porting and head machine work?
Replies: 4
Views: 171

Re: Anyone offering porting and head machine work?

guhfluh wrote:Were they the ones who had a CNC head program?

They did have a CNC head program but had some problems.
I don't know the whole story of what happened and don't know if the program was recovered.
Arny was still willing to do the head porting manually last time I spoke with him.
by pmuller9
Sat Jun 20, 2020 2:02 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Anyone offering porting and head machine work?
Replies: 4
Views: 171

Re: Anyone offering porting and head machine work?

The only place in the country that has recently done 240/300 heads that I know of is C-Tech Performance out of Michigan.
They did a 300 head for me and another forum member.
Talk to Arny
https://c-techperformance.com/
by pmuller9
Fri Jun 19, 2020 5:51 pm
Forum: 240-300 "Big Block" Six Performance
Topic: crimping and soldering wire or cable ends Which is best?
Replies: 24
Views: 511

Re: crimping and soldering wire or cable ends Which is best?

A wide spectrum of needs and environment, I imagine pits at races are similar to git- by work we so often do. I've been flown to the race track to install different controllers or wire for a different control sequence. Sometimes it would be between races so time was of the essence. It's not fun doi...
by pmuller9
Fri Jun 19, 2020 5:18 pm
Forum: 240-300 "Big Block" Six Performance
Topic: crimping and soldering wire or cable ends Which is best?
Replies: 24
Views: 511

Re: crimping and soldering wire or cable ends Which is best?

1. A proper crimp job is best. 2. A proper soldering job works really well too. 3. A lousy crimp job is not as good as a proper soldering job. 4. A lousy soldering job will fail, and so will a lousy crimp job. No soldering on a vehicles wiring unless you can also provide the proper strain relief wh...
by pmuller9
Thu Jun 18, 2020 9:56 pm
Forum: 240-300 "Big Block" Six Performance
Topic: crimping and soldering wire or cable ends Which is best?
Replies: 24
Views: 511

Re: crimping and soldering wire or cable ends Which is best?

Whoa, if I'm reading this right, I've been doing it wrong for 15 years... with the Klein crimpers pictured, I put the dimple forming spike on the split in the terminal. This pushes both edges down to an "M" sort of shape around the strands. Never had an issue, so far... The seams at the s...
by pmuller9
Thu Jun 18, 2020 10:47 am
Forum: 240-300 "Big Block" Six Performance
Topic: crimping and soldering wire or cable ends Which is best?
Replies: 24
Views: 511

Re: crimping and soldering wire or cable ends Which is best?

The critical part is crimping rightly. Maybe better modern tools will help. Here are the two main crimping tools that I use that cover the majority of the connections I have had to make. Nothing fancy. It is how you use them that counts. https://www.dropbox.com/s/h9dqwakjjomemrc/Crimp%20Tool%201.JP...
by pmuller9
Wed Jun 17, 2020 4:55 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Really wierd, Comp 268 detonation
Replies: 19
Views: 418

Re: Really wierd, Comp 268 detonation

Why did you change cams several times?
by pmuller9
Wed Jun 17, 2020 2:25 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Really wierd, Comp 268 detonation
Replies: 19
Views: 418

Re: Really wierd, Comp 268 detonation

Long time drag race engine builder put this short block together. I assume it went in without any advance. Gears match, keyway is not adjustable, Right?. Should I pull the cam, use a degree wheel to confirm it is ground correctly, and reinstall. You can use Mr Gasket offset keys in the cam gear to ...
by pmuller9
Wed Jun 17, 2020 11:10 am
Forum: 240-300 "Big Block" Six Performance
Topic: Really wierd, Comp 268 detonation
Replies: 19
Views: 418

Re: Really wierd, Comp 268 detonation

The 268 cam is detonation prone.

What is most important is the cam timing. I'm assuming you checked the cam timing using a degree wheel when you installed it.
Where did you set the intake lobe center when you installed the cam?
by pmuller9
Tue Jun 16, 2020 8:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: crimping and soldering wire or cable ends Which is best?
Replies: 24
Views: 511

Re: crimping and soldering wire or cable ends Which is best?

Brandon I'm retired now but started in the industry in 1973 both on the manufacturing floor and in engineering. During that time I was the IPC-A-610 certified instructor who got to teach some of those wonderful classes you are referring to. Yes Butt crimps should only be a temporary fix. The crimp i...
by pmuller9
Tue Jun 16, 2020 7:31 pm
Forum: 240-300 "Big Block" Six Performance
Topic: crimping and soldering wire or cable ends Which is best?
Replies: 24
Views: 511

Re: crimping and soldering wire or cable ends Which is best?

No soldering especially on battery cable terminals This is what I wrote last discussion: When you crimp a wire in a terminal using the correct crimping tool the crimp runs in the same direction as the wire stands and the wire strands do not have a sharply defined bending point. Once you add solder t...
by pmuller9
Sun Jun 14, 2020 8:08 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: How to tune air fuel ratio.
Replies: 2
Views: 144

Re: How to tune air fuel ratio.

When you are cruising you are only using the primaries so you would want to go down 2 on primary main jet size.

What is the WOT a/f ratio under full boost?
by pmuller9
Sun Jun 14, 2020 1:34 pm
Forum: 240-300 "Big Block" Six Performance
Topic: exhaust port short side
Replies: 4
Views: 175

Re: exhaust port short side

Then Yes, make that turn smooth and round.
by pmuller9
Sun Jun 14, 2020 11:52 am
Forum: 240-300 "Big Block" Six Performance
Topic: exhaust port short side
Replies: 4
Views: 175

Re: exhaust port short side

Are you talking about the short turn as shown by the arrow?

Image
by pmuller9
Sat Jun 13, 2020 8:09 am
Forum: 240-300 "Big Block" Six Performance
Topic: PMGR starter wireing
Replies: 3
Views: 135

Re: PMGR starter wireing

Most of the power connections are taken off the battery terminal of the stock solenoid and no one wants to extend and move those wires down to the starter. You could replace the original solenoid with an insolated stud terminal and run the starter cable to the starter from there. https://www.amazon....
by pmuller9
Sat Jun 13, 2020 7:23 am
Forum: 240-300 "Big Block" Six Performance
Topic: Compression on E85
Replies: 47
Views: 8576

Re: Compression on E85

The 1.90" valve you listed is too short. You need to use the 4.910" long Chevy valves so there is enough valve travel. Use the 1.6 ratio rocker arms. There is less stress and the pushrod is centered better in the guides in the head Flat tappet. 295*@.006 242*@.05 153*@.200 .338 lobe lift ....

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