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Author
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Topic: Recommendation for blowthru turbo carb source?
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powrshftr
Journeyman Posts: 77
From: Sarnia,Ontario,Canada
Registered: Apr 2003
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posted 01-10-2004 11:40 PM
 
Well,I've got the ball rolling on my 306ci carbureted turbo project,but I'm having very little luck finding somebody with experience (or who is willing) to build a carb for this type of application.Anybody got a suggestion?I sent an email to Bigs,but have not heard back from them yet.Thanks in advance
Scott------------------
DRIVE IT LIKE YOU STOLE IT!!!!!!!!!!!
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Moneymaker
Administrator Posts: 29200
From: Lyons, IL, USA
Registered: May 99
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posted 01-10-2004 11:47 PM
I've done a few. All on SC applications.
All worked flawlessly. No brag, just fact!  ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,&'03
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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powrshftr
Journeyman Posts: 77
From: Sarnia,Ontario,Canada
Registered: Apr 2003
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posted 01-11-2004 12:09 AM
Alex,would you be willing to take a crack at another one in the next couple of months?Also,would you want to start with my core,or do you prefer to start with a new carb?I've got a 600cfm Holley dp right now,which all of the blowthru "experts" seem to think is just right,but I can't get past thinking a 750 would be far better for a motor trying to make relatively big #'s for it's size.Am I correct?Thanks,Alex.
Scott
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Moneymaker
Administrator Posts: 29200
From: Lyons, IL, USA
Registered: May 99
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posted 01-11-2004 10:29 AM
quote:
Originally posted by powrshftr:
Alex,would you be willing to take a crack at another one in the next couple of months?Also,would you want to start with my core,or do you prefer to start with a new carb?I've got a 600cfm Holley dp right now,which all of the blowthru "experts" seem to think is just right,but I can't get past thinking a 750 would be far better for a motor trying to make relatively big #'s for it's size.Am I correct?Thanks,Alex.
Scott
I'll only start with a brand new core. You supply it or I will.
600 CFM was barely enough for my Paxton 289 stuff. I had best success with highly modified (by me) 4118 725 CFM Holley's.
This was before 4 corner idle circuit carbs were available.
700 or 750 DP is what I would choose.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,&'03
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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Mpcoluv
Gearhead Posts: 1421
From: Charlotte NC usa
Registered: Apr 2001
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posted 01-11-2004 11:56 AM
Here is a "How To" on modding a carb for blowthrough.http://www.hangar18fabrication.com/blowthru.html I have no idea however if these guys know anything or not....
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powrshftr
Journeyman Posts: 77
From: Sarnia,Ontario,Canada
Registered: Apr 2003
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posted 01-11-2004 12:58 PM
That's the trouble......do you take a leap of faith and frag a shiny new motor because some guy on the net says his 'killer super-secret race-tune' will make your car run 9's?Probably not......I think I'm gonna see if Alex will build one for me.------------------
DRIVE IT LIKE YOU STOLE IT!!!!!!!!!!!
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Kyle
Gearhead Posts: 458
From: Sumner, WA
Registered: Dec 2001
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posted 01-11-2004 01:30 PM
FWIW, I always thought the Holley 4010 series double pumpers would make a good blow-thru carb. The bowl is one piece, so there is no chance of fuel leaking from the throttle shafts, and it has the same features of the 4150 series, too. Just something to think about.
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Moneymaker
Administrator Posts: 29200
From: Lyons, IL, USA
Registered: May 99
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posted 01-11-2004 01:33 PM
quote:
Originally posted by Kyle:
FWIW, I always thought the Holley 4010 series double pumpers would make a good blow-thru carb. The bowl is one piece, so there is no chance of fuel leaking from the throttle shafts, and it has the same features of the 4150 series, too. Just something to think about.
I agree.
I wish I had about 30-40 of them. 
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Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,&'03
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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powrshftr
Journeyman Posts: 77
From: Sarnia,Ontario,Canada
Registered: Apr 2003
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posted 01-11-2004 03:55 PM
That carb is basically a rip off of an Autolite 4100 right?Would I be better off to modify the 1.12 4100 I already have,or should we not even go there.......?
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Mpcoluv
Gearhead Posts: 1421
From: Charlotte NC usa
Registered: Apr 2001
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posted 01-11-2004 05:54 PM
I wonder if Holley will sell the tooling for the 4010 series carbs?
Everyone I know that ever tried on like it.
Those carbs defiantely would be a much better "street" carb than the old AFB clones.
Maybe when Edelbrock ends up with Holley, they will re-introduce them 
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Kyle
Gearhead Posts: 458
From: Sumner, WA
Registered: Dec 2001
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posted 01-11-2004 08:40 PM
The problem with the 4100 is that they are vacuum secondary carbs, although as I recall Alex does a mech. secondary conversion for those.
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