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Hi Marty, The AFR decreases as boost and/or dynamic compression increases. Around 5:1 works just fine for boost levels up to 15 PSI or so and...
Well, it depends on your setup...if you are hitting 400 PSI going down the track, then yes, 100 PSI for the pump saver is way too low. If you're...
When using large fuel pumps, both of those holes in the rotor are needed to relieve enough fuel to have the desired effect. If you are using a...
No, they're the same. It doesn't matter where you put the high-speed check valve, the "leak" you're introducing when it opens causes a pressure...
The Super Mags are a points style magneto and there are no electronic advance/retard controls for them. They are very reliable, but there aren't...
I had the same problem a few years ago. I looked for flexplate bolts with safety wire holes in them and there didn't seem to be any such thing....
I just put a calculator for this on my website for you Vic! This is based on data from my car and quite a few different customers I've tuned...
You can always use a PSI rev limiter with the Mallory. They work really well. If you don't want it to come back on when the engine speed comes...
Hi Mike, Yup, output would be the blower displacement per revolution in cubic inches. Sorry, I don't have any info on a 200H. You could...
As Dave mentioned, there are a lot of variables. There is a way to calculate a ballpark number and it's generally within a pound or two....
Yup, it can be used as an RPM activated switch very easily. Here's the manual for it with all the schematics for various setups:...
The model you want depends on if you want the motor to shut off completely and require a reset, or if you just want it interrupted and be still...
A brand new 990 makes 15.0 to 15.2 GPM @ 4000 pump RPM @ 100 PSI. Spud www.fuelinjectionent.com
Mr. Grump, Do you have the control box in the large black housing with external 9V batteries or the smaller box with the 12v rechargeable...
SM XI = Super Mag 11 (electronic) SM VI = Super Mag 6 (electronic) SM IV = Super Mag 4 (points) The 6 through 11 are the old electronically...
I have a factory diagram for the electronic SM6...some of it may be the same (they are from the same era). I'm not that familiar with the SM11...
I've got a bunch of Mallory and Vertex mag customers that would jump at it if it were reliable and priced right. Let me know if I can get one...
Fiddling with the hole at all (especially the entry) will completely change the flow of a nozzle or pill. They can get screwed up pretty easily by...
I've seen brand new Enderle nozzles vary 10% in output at 100 PSI. You can poke some holes in brass and they will all flow pretty similar at low...
Steve Smith Motorsports has a great book on racing and taxes: http://www.ssapubl.com/product.aspx?nbr=S217 Spud www.fuelinjectionenterprises.com
