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Search found 714 matches

by n2omike
Thu Sep 17, 2020 12:19 pm
Forum: Engine Tech
Topic: mallory 250 fuel pump
Replies: 3
Views: 126

Re: mallory 250 fuel pump

1972ho wrote: Thu Sep 17, 2020 10:28 am There are 100k of pumps sitting around in boxes for years and sold as new and work perfectly so what would be the difference.
Most likely have a protective coating on the inside to prevent corrosion and degradation.
Coating and spinning with some ATF is not a bad idea.
by n2omike
Wed Sep 16, 2020 5:52 pm
Forum: Engine Tech
Topic: Ford Windsor 408's HP Plateaus @ 5,600
Replies: 35
Views: 848

Re: Ford Windsor 408's HP Plateaus @ 5,600

People look at dyno numbers from an AFR 205 headed 408, and think they will get similar performance from a Chinese 205 head they got for 'half price'... only to learn that money they 'saved' killed their entire combo. The heads are junk. Sell them on Ebay to some other fool, and put a decent head on...
by n2omike
Tue Sep 15, 2020 7:31 am
Forum: Engine Tech
Topic: Why no Ardun hemi head SBC conversion?
Replies: 48
Views: 1397

Re: Why no Ardun hemi head SBC conversion?

I think the Captain Obvious answer as to why Ardun never made heads for the SBC, is the SBC already had overhead valves! That, and it came out later than the flathead Ford... when everyone else was coming out with overhead valves as well.
by n2omike
Mon Sep 14, 2020 11:54 am
Forum: Engine Tech
Topic: Tunnel Ram 4-Speed Bog
Replies: 25
Views: 822

Re: Tunnel Ram 4-Speed Bog

Thought I'd post an update: Turns out he had the secondary floats set too low! I was tempted to backhand him across the forehead, but he had suffered enough. lol All is good now. He's a beginner. He's also launching it like a little girl, so we're working on that as well! LOL! Thanks for all the inp...
by n2omike
Thu Sep 10, 2020 12:07 pm
Forum: Engine Tech
Topic: Exhaust flames - running lean or just high temp?
Replies: 13
Views: 729

Re: Exhaust flames - running lean or just high temp?

I could see those burnout guys intentionally producing flames out the exhaust... just for show. It doesn't take much power to melt tires. The spectacle is what it's all about. Noise, rpm, FLAMES, flash and dazzle are what it's all about. If they knew how to shoot flames out the exhaust without killi...
by n2omike
Fri Aug 28, 2020 1:14 pm
Forum: Engine Tech
Topic: 1 5/8” headers and 500hp?
Replies: 74
Views: 2909

Re: 1 5/8” headers and 500hp?

Would adding some exhaust duration reduce some of the loss? Cam design likely plays a significant role. Cams that rely on a lot of overlap would likely suffer more with the small tubes, as there would be more reversion. Opening the exhaust valve sooner by spreading the LSA and advancing the cam to ...
by n2omike
Mon Aug 24, 2020 11:33 am
Forum: Engine Tech
Topic: Tunnel Ram 4-Speed Bog
Replies: 25
Views: 822

Re: Tunnel Ram 4-Speed Bog

novafornow wrote: Mon Aug 24, 2020 11:01 am I agree with the timing idea. They can take quite a bit
I had him lock it out at 36 degrees. Definitely runs better that way.
by n2omike
Mon Aug 24, 2020 9:00 am
Forum: Engine Tech
Topic: Tunnel Ram 4-Speed Bog
Replies: 25
Views: 822

Re: Tunnel Ram 4-Speed Bog

Do you have any idea what the base pressure is of the clutch and how many turns of pressure he has in it? Sintered iron clutches need very little pressure to work. He shouldn't need a heavy flywheel if the clutch works right. If you can get the clutch to slip like it's supposed to it should help wi...
by n2omike
Sun Aug 23, 2020 11:22 pm
Forum: Engine Tech
Topic: Tunnel Ram 4-Speed Bog
Replies: 25
Views: 822

Re: Tunnel Ram 4-Speed Bog

Careful with that it allows use of a standard jet, but not a jet extension the notch only clear the jet itself. I liked the idea of turning the carbs around backwards and adding jet extensions to the front (now rear)... I've only dealt with jet extensions on center hung bowls. I use the screw in ty...
by n2omike
Sun Aug 23, 2020 6:22 pm
Forum: Engine Tech
Topic: Tunnel Ram 4-Speed Bog
Replies: 25
Views: 822

Re: Tunnel Ram 4-Speed Bog

Has this car got a fuel pressure gauge the driver can watch?I just went through pretty much the same thing as you are describing on a bbc camaro.The car was momentarily dropping fuel pressure at launch.We found the return on the stock sump tank had come loose and it was allowing air to be pulled in...
by n2omike
Sun Aug 23, 2020 5:23 pm
Forum: Engine Tech
Topic: Tunnel Ram 4-Speed Bog
Replies: 25
Views: 822

Re: Tunnel Ram 4-Speed Bog

You have no way to use a jet extension on it now, most of them are converted to rear metering block and turned sideways, then there's no need for jet extensions. Turn the carbs around and use jet extensions on the primary, you'll need to revise the throttle linkage. He's not allowed to run sideways...
by n2omike
Sun Aug 23, 2020 4:16 pm
Forum: Engine Tech
Topic: 1 5/8” headers and 500hp?
Replies: 74
Views: 2909

Re: 1 5/8” headers and 500hp?

Would adding some exhaust duration reduce some of the loss? Cam design likely plays a significant role. Cams that rely on a lot of overlap would likely suffer more with the small tubes, as there would be more reversion. Opening the exhaust valve sooner by spreading the LSA and advancing the cam to ...
by n2omike
Sun Aug 23, 2020 3:16 pm
Forum: Engine Tech
Topic: Tunnel Ram 4-Speed Bog
Replies: 25
Views: 822

Re: Tunnel Ram 4-Speed Bog

Are the carbs mounted side ways or regularly, seems to me 660's don't have secondary metering blocks they have metering plates. They need to be mounted side ways because of the g force your pulling off the line, if there mounted regularly your uncovering the metering orifice or what would be the je...
by n2omike
Sun Aug 23, 2020 1:44 pm
Forum: Engine Tech
Topic: Tunnel Ram 4-Speed Bog
Replies: 25
Views: 822

Tunnel Ram 4-Speed Bog

I helped my buddy out with an engine for a budget Gasser he built. It's a 1964 Ford Falcon. 306, Toploader 4-speed (2.78 first gear) and 5.67 rear. Car is around 2900 lbs with him in it. Problem is, it will launch... then bog like hell... then take off again, and run through the gears just fine. Fro...
by n2omike
Tue Jun 23, 2020 11:50 am
Forum: Engine Tech
Topic: Dyno mufflers
Replies: 18
Views: 1250

Re: Dyno mufflers

Saw where a guy built a box about the size of a small dumpster outside of his building. He lined it with insulation, put a big exit or two on it, and called it 'good'.