16
Spud Miller's Cave / Re: New to MFI
« on: May 20, 2020, 11:33:16 AM »
Thanks again Spud. i have read about area of a jet instead of diameter but it didn't click till you said it.
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17
Spud Miller's Cave / Re: New to MFI
« on: May 20, 2020, 08:34:01 AM »
Thank you Spud for your response. I registered to use the calculator and took a look at the questionaire. I can kinda fake my way through the calculator but on the questionaire I don't really know all the details of the motor, (head flow, valve size, pump size, porting) who knows, it might not even be a 406? I'm just trusting the seller. Guess I should have had stuff flowed during Covid lock down oh well.
I had thought about blocking the high speed since it's 1/8 mile and not 1/4 but since learning the high speed is open when it leaves I don't have the pills to support that. Currently running .110 main and a .045 in the high speed so if my math is correct that's equal to a .155 pill. guess i need to spend some more money. ha!
Thanks again
I had thought about blocking the high speed since it's 1/8 mile and not 1/4 but since learning the high speed is open when it leaves I don't have the pills to support that. Currently running .110 main and a .045 in the high speed so if my math is correct that's equal to a .155 pill. guess i need to spend some more money. ha!
Thanks again
18
Spud Miller's Cave / New to MFI
« on: May 18, 2020, 05:30:33 PM »
Been around racing all my life but never MFI. Bought an FED back in February. It's a 406 SBC, 14:1 comp with a 3 piece Hilborn and DSR pump on alcohol. Keep in mind the last car I made a pass in was 20 years ago in a door car that went 1.48 60ft. So being cautious I backed out the pedal adjustment screw all the way which gave me 2/3 to 3/4 at the butterfly. Also being cautious I put a 3000 chip in the low side and shifted at 6000. First time at the track it went 1.16 60ft, 5.33 and 5.28 @129. I was really impressed.
Then came COVID19. The weekend before the tracks closed I was at a Funny Car Chaos race in Lufkin TX. I witnessed Dennis Piranio testing a high speed bypass at the track. That got me to thinking about my car. With COVID19 putting a halt to everything, it gave me even more time to think until I couldn't stand it anymore. I had to test my high speed bypass. Testing it I slowly raised the air pressure and @ 50lbs it released.
Fast forward to this past weekend. I have a pressure gage on the pump so I had my grandson record it while I brought the rpm's up against the converter. Converter stalls 5400 and just as the rpm passes 5000 the pressure hits 50lbs, flickers and drops to about 48lbs. In my mind I'm thinking that as soon as I let off the brake I'm hitting the high speed going down the track. Am I wrong?
Then came COVID19. The weekend before the tracks closed I was at a Funny Car Chaos race in Lufkin TX. I witnessed Dennis Piranio testing a high speed bypass at the track. That got me to thinking about my car. With COVID19 putting a halt to everything, it gave me even more time to think until I couldn't stand it anymore. I had to test my high speed bypass. Testing it I slowly raised the air pressure and @ 50lbs it released.
Fast forward to this past weekend. I have a pressure gage on the pump so I had my grandson record it while I brought the rpm's up against the converter. Converter stalls 5400 and just as the rpm passes 5000 the pressure hits 50lbs, flickers and drops to about 48lbs. In my mind I'm thinking that as soon as I let off the brake I'm hitting the high speed going down the track. Am I wrong?
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