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03-30-2005, 06:05 PM
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CC Member
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Join Date: May 2001
Location: niceville fl,
fl
Cobra Make, Engine: Hunter #28; 396 Cleveland stroker; more than 495 HP; TKO 5 speed
Posts: 442
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Not Ranked
jim;
My SA stroker ran hot initially also.
It ended when I did a good burping with nose "uphilll" and fixed the distributor they provided. you need about 36 deg total and AT LEAST 15 initial. The carb will not function properly with 9 deg initial with any type of cam in it. Now mine runs a little cool and I only use the fan when idling in garage or are in stop and go traffic
grover
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03-30-2005, 06:25 PM
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CC Member
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Join Date: Apr 2001
Location: Richfield,
WI
Cobra Make, Engine: Backdraft Racing #223
Posts: 676
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Not Ranked
Stop driving slow sissy boy!
Ed
__________________
I was told it doesn't get cold up here. 
WTF... I'm freezing!
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03-30-2005, 07:18 PM
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CC Member
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Join Date: Feb 2002
Location: Bradenton Florida,
FL
Cobra Make, Engine: BDR 930, 427 Windsor T56
Posts: 658
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Not Ranked
Quote:
Originally posted by niles
....and fixed the distributor they provided.
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What was wrong with your distributor? Was the timing just off or was there something else wrong?
__________________
Jim Pomroy
Have Fun!
BDR #930
08 Corvette Coupe
92 Sunburst Yellow Miata
#81 Saturn V Miata Crapcan racer
Panoz GTRA #42
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03-30-2005, 08:10 PM
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CC Member
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Join Date: Apr 2001
Location: Richfield,
WI
Cobra Make, Engine: Backdraft Racing #223
Posts: 676
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Not Ranked
Yo Sissy boy,
Where are you at this weekend?
I'm recriuting help to breathe life into BD #223.
I dont know @#$% about tuning carbs and could use some wisdom.
Ed
__________________
I was told it doesn't get cold up here.
WTF... I'm freezing!
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03-30-2005, 08:56 PM
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CC Member
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Join Date: Feb 2002
Location: Bradenton Florida,
FL
Cobra Make, Engine: BDR 930, 427 Windsor T56
Posts: 658
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Not Ranked
I thought you were working on the car the weekend of the 1st. I'll be at Roebling that weekend. You know, the whole driver not the car deal. Practice, practice. practice.
You better warm the credit card and go horsepower shopping.
__________________
Jim Pomroy
Have Fun!
BDR #930
08 Corvette Coupe
92 Sunburst Yellow Miata
#81 Saturn V Miata Crapcan racer
Panoz GTRA #42
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03-31-2005, 10:20 AM
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CC Member
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Join Date: May 2001
Location: niceville fl,
fl
Cobra Make, Engine: Hunter #28; 396 Cleveland stroker; more than 495 HP; TKO 5 speed
Posts: 442
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Not Ranked
jim;
not enough initial timing and slow coming in. Should be all in by 2 to 2.5K rpms. Not enough initial lead causes many issues, not enough time to complete combustion before exh value opens, result burning eyes(raw unburned gas) at idle, you richen to attempt to fix idle, gets worse. Extra unburned gas results in a lot of burning going on in exhaust ports and pipes which results in additional head BTU having to be dealt with. Go to foursecond.com.. They have excellent tuitoral on this under tech section. Bottom line get ignition sorted "first" before even thinking about carb. I wasted a yr chasing that rabbit.
grover
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03-31-2005, 03:53 PM
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CC Member
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Join Date: Feb 2002
Location: Bradenton Florida,
FL
Cobra Make, Engine: BDR 930, 427 Windsor T56
Posts: 658
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Not Ranked
Thanks Niles, that explains alot. You can tell my stainless pipes are getting pretty hot by the color already. My idle has also been hard to set.
Have you got a better link to that site?
Did you replace the distrubutor or just put different weights in it?
__________________
Jim Pomroy
Have Fun!
BDR #930
08 Corvette Coupe
92 Sunburst Yellow Miata
#81 Saturn V Miata Crapcan racer
Panoz GTRA #42
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08-14-2005, 02:09 PM
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CC Member
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Join Date: Feb 2002
Location: Bradenton Florida,
FL
Cobra Make, Engine: BDR 930, 427 Windsor T56
Posts: 658
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Not Ranked
The problem has been fixed. I replaced the stock fans with 10" fans from Spal.
The part number is 2057. They pull 1070 cfm each.
Installation is pretty straight forward. You will need to remove the shroud from the car. Remove the stock fans. Line up the new fans and drill new holes. I used 5/16"x1" stainless bolts with lock nuts to attach the new fans.
You can swap the plastic part of the plug onto the new fan and they will plug right in. The metal pins will slide out of the Spal plug and into the BDR plug.
__________________
Jim Pomroy
Have Fun!
BDR #930
08 Corvette Coupe
92 Sunburst Yellow Miata
#81 Saturn V Miata Crapcan racer
Panoz GTRA #42
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08-14-2005, 02:53 PM
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CC Member
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Join Date: Jan 2001
Location: Cape Coral,
FL
Cobra Make, Engine: 2009 Solbra
Posts: 3,861
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Not Ranked
Jim,
I told you to purchase a Spal fan way back on page one of this post or like Ed said drive faster to push more air through the radiator.
Dan 
__________________
Dan Wulff
I carry a gun because a cop is too heavy.
(No doubt, most will blame it on the donuts.)
You're just jealous because the voices only talk to me
Earth is the insane asylum for the universe.
The gene pool could use a little chlorine.
The original point and click interface was a Smith & Wesson.
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08-14-2005, 03:24 PM
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Backdraft Racing Dealer
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Join Date: Dec 2004
Location: North Haven,
CT
Cobra Make, Engine: Backdraft Racing
Posts: 5,122
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Not Ranked
Good to hear.
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08-14-2005, 05:23 PM
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CC Member
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Join Date: Aug 2003
Location: Gilbert,
AZ
Cobra Make, Engine: Backdraft #90, 351w,Tremec 3550, SB100 SOLD
Posts: 577
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Not Ranked
I think the only thing to do is to sell the car. I'll give you $25K for it sight unseen.
Skip
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06-22-2007, 07:27 AM
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CC Member
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Join Date: Mar 2006
Cobra Make, Engine: BDR354/FMS392
Posts: 382
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Not Ranked
I know this is a real old post but...I just installed two Spal 2057's in place of the stock BDR Puller Fans. Does anyone know if there is an issue with the stock BDR wiring/relays/fuses being able to handle 10amps per fan. I am guessing that there could be the possibility of 25 amps running off of this circuit at times.
Thanks,
Mark
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06-22-2007, 07:41 AM
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Backdraft Racing Dealer
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Join Date: Dec 2004
Location: North Haven,
CT
Cobra Make, Engine: Backdraft Racing
Posts: 5,122
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Not Ranked
Mark,
I've installed the dual SPALs with no noticeable issues on the electrical side.
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06-22-2007, 08:22 AM
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CC Member
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Join Date: Mar 2006
Cobra Make, Engine: BDR354/FMS392
Posts: 382
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Not Ranked
Thanks Jay,
I am going to put an ampmeter on the line. I will let you know what the actual current draws are. Both for the initial start up current draw and normal load.
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06-22-2007, 08:34 AM
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CC Member
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Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
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Not Ranked
I have had many models in our shop---besides wiring/ground issues the prevalent negative of all systems has been underdrive pulleys that won't move the water so the fans can cool it---seems everyone wants a 699hp powerplant and wants to save 2 hp on the waterpump drag to break the 700hp mark
Jerry
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06-22-2007, 09:05 AM
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CC Member
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Join Date: Feb 2002
Location: Bradenton Florida,
FL
Cobra Make, Engine: BDR 930, 427 Windsor T56
Posts: 658
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Not Ranked
Quote:
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Originally Posted by Mark Brye
I know this is a real old post but...I just installed two Spal 2057's in place of the stock BDR Puller Fans. Does anyone know if there is an issue with the stock BDR wiring/relays/fuses being able to handle 10amps per fan. I am guessing that there could be the possibility of 25 amps running off of this circuit at times.
Thanks,
Mark
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I've been running 2057's on the stock wiring for a long time with no problems.
__________________
Jim Pomroy
Have Fun!
BDR #930
08 Corvette Coupe
92 Sunburst Yellow Miata
#81 Saturn V Miata Crapcan racer
Panoz GTRA #42
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06-22-2007, 10:39 PM
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CC Member
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Join Date: Feb 2007
Cobra Make, Engine:
Posts: 19
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Not Ranked
What cfm are the fans that come w/ the car. I have car # 136. And did the 2057's make a big difference, at what price, and where to get? Are they a direct change over or need modification? Brian
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06-23-2007, 12:44 AM
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CC Member
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Join Date: Mar 2006
Location: San Marcos california,
CA
Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive
Posts: 1,601
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Not Ranked
I have used two Audi fans in my car for years.They are two speed fans originally designed to kick in the low speed when the A/C kicks in.They can be wired one speed to a thermo switch and one to an manual switch.They blow like a hurricane.They are mounted so that they are pulling,IE;behind the radiator.
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06-23-2007, 07:07 AM
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CC Member
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Join Date: Feb 2002
Location: Bradenton Florida,
FL
Cobra Make, Engine: BDR 930, 427 Windsor T56
Posts: 658
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Not Ranked
Quote:
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Originally Posted by #136
What cfm are the fans that come w/ the car. I have car # 136. And did the 2057's make a big difference, at what price, and where to get? Are they a direct change over or need modification? Brian
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1. Don't know, don't care.
2. Yes from over heating in traffic to not overheating.
3.$99 each
4. The Fan Man
5. Drilling new mounting holes and changing the plug are the only modifications required.
__________________
Jim Pomroy
Have Fun!
BDR #930
08 Corvette Coupe
92 Sunburst Yellow Miata
#81 Saturn V Miata Crapcan racer
Panoz GTRA #42
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06-24-2007, 10:13 AM
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CC Member
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Join Date: Mar 2006
Cobra Make, Engine: BDR354/FMS392
Posts: 382
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Not Ranked
Ok, before I had the Spals, the car's fans would turn on and stay on. In heavy traffic the car would heat up to the 100C+ range. Now with the new Spals, the fans turn on and then turn off shortly after. The car is cooling much better now. I should note that these fans appear to be quieter also.
Ampmeter on one of the fans shows start up is 9.8 and continues is about 9.0 amp draw.
I am nolonger worried about getting stuck in traffic on a really hot day!
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