Thanks Charles, I'm always interested in the minor changes possible by using open or closed spacers and appreciate the detailed information you provided.
Hay Charles. I didnt know the history of the ford race intake. Shelby or the cobra variation. After looking more...i believe they also used a Q intake with a masive plenum. Sorta like a 2 pc plate. It was used on GT40 cars. If your customer is looking to match the same performance. That intake made by Shelby addressed the imbalance issue.
Its hard to explain with out showing a photo but ive also seen those open plenum intakes respond well to a modified 4 hole spacer plate. you cut out the + shape divider in the middle of the spacer leaving an open 4 leaf clover shape or half circles in each corner improving flow ect
Me personally, I'll give up 3 CFM to run say 11:1 over 10.4:1 compression ratio, all day every day. A better atomized air fuel mixture is going to tolerate that bump in CR and swirl is what helps fuel mix in the chamber. Anything that helps that fuel stay nice and atomized will help you bump up CR, which ultimately means more power and efficiency within reason.
Thanks Charles, I'm always interested in the minor changes possible by using open or closed spacers and appreciate the detailed information you provided.
@@gmcl4613 You are welcome.
I like the swirl curve on the Wilson 1" spacer, that one probably would promote more consistent combustion. That would be my pick.
It is a good one. Thanks
Hay Charles. I didnt know the history of the ford race intake. Shelby or the cobra variation.
After looking more...i believe they also used a Q intake with a masive plenum. Sorta like a 2 pc plate. It was used on GT40 cars. If your customer is looking to match the same performance. That intake made by Shelby addressed the imbalance issue.
Good info. Thanks!
Its hard to explain with out showing a photo but ive also seen those open plenum intakes respond well to a modified 4 hole spacer plate. you cut out the + shape divider in the middle of the spacer leaving an open 4 leaf clover shape or half circles in each corner improving flow ect
@MoparMan-ff8fb I have done that too. Works well. Thanks
I think the wash of numbers on the ported airgap curve is because the intake is better.
@@jonathoncouchey7151 Maybe.
What brand is your valve opening fixture?
@@vestal2245 Performance trends I think.
Me personally, I'll give up 3 CFM to run say 11:1 over 10.4:1 compression ratio, all day every day. A better atomized air fuel mixture is going to tolerate that bump in CR and swirl is what helps fuel mix in the chamber. Anything that helps that fuel stay nice and atomized will help you bump up CR, which ultimately means more power and efficiency within reason.
@@rolandotillit2867 Very good point!