Good deal,let me know if you find anything,I’m curious. Really looking forward to racing in the SEGA, I’m really enjoying building the motor for the gasser more than any one I’ve done in a long time, but going up against the best engine builders in the country is intimidating, but it also drives me harder. Also looking forward to seeing the 55 run again
Hay Mike, just watched the video and I have a guess as to what might be going on with the Bush carburetor, I’m going way back in my memory from when I worked for the Jackson Brothers back in the eighties an nineties when they had the Skoal nascar teams in Arden NC. I remember when they started limiting the carburetor sizes to slow the cars down at Daytona and talladega that they started to intentionally make the carbs leak air and one of the places was the center air cleaner stud, among other places like carb studs and even valve cover studs, which was all illegal. So I’m just guessing but I suspect that what you have is a super speedway carb that was modified that way, I remember they used to idle the car up really hi and jet the carb for the “extra” air. Nascar caught on to the studs pretty quick so they had to get more creative with the way they cheated. So maybe check the throttle shafts to see if they have been gun drilled or other things that don’t look right on the throttle plate and metering blocks, they did a good job of hiding things. Back then in the bush series you could run a v6 or a v8 and the main rule restriction was in the carburetor, but the cheating going on was really interesting, I have a old set of Robart Yates heads that when I first started working on them they had a #8 AN water crossover in the heads, but it turned out to be a air passage with a hole drilled in each intake Port to draw extra air into the engine. A lot of work goes into cheating in nascar for sure. As for the linkage design I still have a old nascar carb with a similar setup and what I suspect is that having the secondary’s come in late is because you feather the throttle quite a bit in the draft and it was probably done to try and get a little better mileage, if you could get a extra lap or two sometimes it makes a difference at the end of the race. For what it’s worth the last time I had a nascar legal “390” carburetor on my flow bench it flowed well over 700 CFM. I miss racing at Greer with you guys, but we are building a gasser for SEGA hopefully have it finished for next year, so maybe we’ll see you at the track. Thanks for the time to let me post, Mike and Anita B
@@AKB351 That is great info! I'll make sure Dad sees it all. We will have to do some more investigation on this since I've had a few people reach out asking and giving info! Thanks so much for watching and keeping up with us!
@@AKB351 Hey Mike! I was just able to talk to Dad and tell him about this comment. He was excited to hear from you and said he appreciate you letting us know this so we could check it. We look forward to seeing you at a SEGA race soon and are really hoping to have the 55 back on the track as soon as possible!
Good deal,let me know if you find anything,I’m curious. Really looking forward to racing in the SEGA, I’m really enjoying building the motor for the gasser more than any one I’ve done in a long time, but going up against the best engine builders in the country is intimidating, but it also drives me harder. Also looking forward to seeing the 55 run again
Hay Mike, just watched the video and I have a guess as to what might be going on with the Bush carburetor, I’m going way back in my memory from when I worked for the Jackson Brothers back in the eighties an nineties when they had the Skoal nascar teams in Arden NC. I remember when they started limiting the carburetor sizes to slow the cars down at Daytona and talladega that they started to intentionally make the carbs leak air and one of the places was the center air cleaner stud, among other places like carb studs and even valve cover studs, which was all illegal. So I’m just guessing but I suspect that what you have is a super speedway carb that was modified that way, I remember they used to idle the car up really hi and jet the carb for the “extra” air. Nascar caught on to the studs pretty quick so they had to get more creative with the way they cheated. So maybe check the throttle shafts to see if they have been gun drilled or other things that don’t look right on the throttle plate and metering blocks, they did a good job of hiding things. Back then in the bush series you could run a v6 or a v8 and the main rule restriction was in the carburetor, but the cheating going on was really interesting, I have a old set of Robart Yates heads that when I first started working on them they had a #8 AN water crossover in the heads, but it turned out to be a air passage with a hole drilled in each intake Port to draw extra air into the engine. A lot of work goes into cheating in nascar for sure. As for the linkage design I still have a old nascar carb with a similar setup and what I suspect is that having the secondary’s come in late is because you feather the throttle quite a bit in the draft and it was probably done to try and get a little better mileage, if you could get a extra lap or two sometimes it makes a difference at the end of the race. For what it’s worth the last time I had a nascar legal “390” carburetor on my flow bench it flowed well over 700 CFM. I miss racing at Greer with you guys, but we are building a gasser for SEGA hopefully have it finished for next year, so maybe we’ll see you at the track. Thanks for the time to let me post, Mike and Anita B
@@AKB351 That is great info! I'll make sure Dad sees it all. We will have to do some more investigation on this since I've had a few people reach out asking and giving info! Thanks so much for watching and keeping up with us!
@@AKB351 Hey Mike! I was just able to talk to Dad and tell him about this comment. He was excited to hear from you and said he appreciate you letting us know this so we could check it. We look forward to seeing you at a SEGA race soon and are really hoping to have the 55 back on the track as soon as possible!