Author Topic: New to supercharging, need some pointers  (Read 452 times)

Offline Draw 3D

  • Jr. Member
  • **
  • Posts: 72
    • View Profile
  • Your Engine: Blown Alky 406 SBC
  • Your Track: Wild Horse Pass
  • Your Vehicle: 1923 T Roadster
  • General Location: Arizona
Re: New to supercharging, need some pointers
« Reply #15 on: August 03, 2019, 12:56:41 PM »
Feeling cold is not proof of maintaining a 64 cooling charge as you stated.

Offline dreracecar

  • Hero Member
  • *****
  • Posts: 1651
    • View Profile
  • Your Track: Bakersfield
  • Your Vehicle: 7-0 pro dragster
Re: New to supercharging, need some pointers
« Reply #16 on: August 03, 2019, 02:44:07 PM »
Manifold temp probe says it does

Offline jeff/21

  • Full Member
  • ***
  • Posts: 164
    • View Profile
  • Your Best Time: 8.24
  • Your Track: any with-in a 6hr radius
  • Your Vehicle: fed
Re: New to supercharging, need some pointers
« Reply #17 on: August 04, 2019, 06:29:22 AM »
on the BBC tried various types but ended up with copper and o-rings

Offline jaded13640

  • Newbie
  • *
  • Posts: 18
    • View Profile
  • Your Best Time: None
  • Your Engine: Mopar, 500", MFI methanol
  • Your Track: none
  • Your Vehicle: Door car
  • General Location: Michigan
Re: New to supercharging, need some pointers
« Reply #18 on: August 04, 2019, 08:01:57 AM »
Jeff, CRAP, I'm not o-ringing this block. Not now at least. You can buy those copper head gaskets that have something more to them than just a sheet of copper. Maybe others have had success with that?

dreracecar. For sure methanol runs cooler but I suspect the probe is reading condensation. The condensation would be able to happen if the fuel wasn't running cooler but I have a feeling were' talking about two different things. Since I figured how how to go fast NA, I've always used methanol and will never use gas again if I have a say in it.

I'm feeling like we'd better run 12:1 or just shy. I've always been a high compression believer but I respect the opinions I've heard here and I think 12:1 or even 11:1 would be a good  compromise. Like one member said, a 671 has it's limitation.

How about a hemi blower intake? That's the one thing we're struggling to find used. Any tips would be awesome.

Wayne

Offline jaded13640

  • Newbie
  • *
  • Posts: 18
    • View Profile
  • Your Best Time: None
  • Your Engine: Mopar, 500", MFI methanol
  • Your Track: none
  • Your Vehicle: Door car
  • General Location: Michigan
Re: New to supercharging, need some pointers
« Reply #19 on: August 04, 2019, 03:14:43 PM »
Typo, the condensation WOULDN'T be able to happen if the fuel wasn't running cooler.

Offline jeff/21

  • Full Member
  • ***
  • Posts: 164
    • View Profile
  • Your Best Time: 8.24
  • Your Track: any with-in a 6hr radius
  • Your Vehicle: fed
Re: New to supercharging, need some pointers
« Reply #20 on: August 04, 2019, 05:24:21 PM »
 Cometic  MLS worked with the motors we built we had smooth block and heads but wouldn't work on a motor we bought that had a rougher surface didn't realize the problem until after o-ringing   cometic  has or will make any bore size or thickness had some strange stuff made.

Offline jaded13640

  • Newbie
  • *
  • Posts: 18
    • View Profile
  • Your Best Time: None
  • Your Engine: Mopar, 500", MFI methanol
  • Your Track: none
  • Your Vehicle: Door car
  • General Location: Michigan
Re: New to supercharging, need some pointers
« Reply #21 on: August 04, 2019, 06:13:47 PM »
excellent, thanks Jeff. Maybe I am going to be o-ringing this pain in my butt.

Wayne

Offline dreracecar

  • Hero Member
  • *****
  • Posts: 1651
    • View Profile
  • Your Track: Bakersfield
  • Your Vehicle: 7-0 pro dragster
Re: New to supercharging, need some pointers
« Reply #22 on: August 05, 2019, 09:30:45 AM »
Too many issues had with the Cometic and SBC (surfaces prepped as needed) went back to copper and an o-ring- problems solved

Offline jaded13640

  • Newbie
  • *
  • Posts: 18
    • View Profile
  • Your Best Time: None
  • Your Engine: Mopar, 500", MFI methanol
  • Your Track: none
  • Your Vehicle: Door car
  • General Location: Michigan
Re: New to supercharging, need some pointers
« Reply #23 on: August 05, 2019, 01:39:03 PM »
Yea....son of a bird dawg... This is prove more complicated than parts selection. That's all building 500 strokers was about, and lost of clearancing for aluminum rods. I guess I'll be talking to the machinist that's going to bore it for us to cut the grooves in the deck. Dang it! LOL

Again, ANYONE knowing about a used hemi blower intake, please let me know.

Thanks for everything so far,

Wayne

Offline jeff/21

  • Full Member
  • ***
  • Posts: 164
    • View Profile
  • Your Best Time: 8.24
  • Your Track: any with-in a 6hr radius
  • Your Vehicle: fed
Re: New to supercharging, need some pointers
« Reply #24 on: August 05, 2019, 02:27:40 PM »
I get my copper gaskets form Cometic