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Author
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Topic: B&M blower?
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Mooney
Gearhead Posts: 1580
From: Marietta, Ga
Registered: Oct 2003
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posted 12-12-2004 12:30 AM
   
Does B&M still make roots type superchargers for the SBF? Or in general?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7940415104&category=33741&sspagename=WDVW
I found that on e-bay and I've been lookin at the Holley 174's or 177's forgot which one they actually carry thats for a SBF. That one just caught my eye since it comes with basically a complete setup. But was wondering if there was anything I should be concerned about with it. I've got a bad tendency towards being on the whimsical side and wouldn't want to be whimsical with a 1000+ around and not be satisfied with what I got.. or it not be correct.
Any advice on this would be greatly appreciated or any questions I should be asking this guy would be great. Thanks,
Luke
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Mooney
Gearhead Posts: 1580
From: Marietta, Ga
Registered: Oct 2003
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posted 12-12-2004 11:43 AM
http://www.jason.fletcher.net/tech/supercharger/supercharger.htmThis just seems odd. 331 Horses is all that it gets? I mean, I'm putting down somewhere in the neighborhood of 280 right now... even 25% would be 70+ horses?? And thats on the low side it'd seem. Any help/input suggestions. Just to clear this up in my head would be great!
Thanks,
Luke
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Mooney
Gearhead Posts: 1580
From: Marietta, Ga
Registered: Oct 2003
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posted 12-13-2004 04:11 AM
Well, still thinking about going for the blower. Especially if it stays at the price.
But trying to plan ahead here. So I'm thinking:I've got an 87 HO right now.
Which ran 9.5:1 C/R if i'm not mistaken.
Its got forged pistons too. So I'd like to keep those. The heads have 60.6 cc's (E7TE).
I was wondering though.. could I get a set of heads.. from some other vehicle that had valves that wouldn't cause interference with the dished pistons.. but have bigger cc's so that it would lower my C/R down? Cause with 9.5:1 C/R and 4 psi it'd put me at 12.1:1. And isn't it better to have more boost than less? So to get 6 psi I'd need to be at 8.5/8:1 and that'd put me between 11.3/12:1 right? I mean.. how much will going with a set of heads with say 70 cc's lower my C/R? What else are my options on lowering the C/R besides this and getting another set of pistons? Once again, any help on this subject, or some info to read would be great. It's a perfect time to find the blower due to it being christmas and the family throwing in a couple hundred bucks. And so making it a good deal for me all around if it'd work. And my Dad and I haven't done much to the stang recently. So this would give us plenty to work on! Sorry for all the questions, but thanks in advance for any help! Luke EDIT: Also, he says top pulley measures 2 and 3 quarters across bottom measures 6 inches across. I haven't been able to find a calculator or anything that would specify what kind of boost these pulleys are setup for? Any help on that matter would also be greatly appreciated! Thanks ya'll! [This message has been edited by Mooney (edited 12-13-2004).]
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Mooney
Gearhead Posts: 1580
From: Marietta, Ga
Registered: Oct 2003
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posted 12-16-2004 04:23 PM
Well, I got outbid in the last couple seconds... damn internet was acting up and I got anxious on top of it. So no blower for me! Give me sometime though to plan it out better beforehand! Got up early for nothing bah!Luke
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 12-16-2004 05:49 PM
Try Dyer's Blower Service.
Good product, more experiance, better service.------------------
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,& '04
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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Mooney
Gearhead Posts: 1580
From: Marietta, Ga
Registered: Oct 2003
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posted 12-16-2004 06:53 PM
I looked there Alex; where you referring me to them for my questions? Or in the purchasing sense? I only saw 4-71's and up there. And I thought that'd be a bit big for my 302.
But they do have a bunch of stuff I need to read up on there.
Thanks!
Luke
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chip67
Gearhead Posts: 245
From: louisville, ky, jefferson
Registered: Oct 2004
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posted 12-16-2004 07:21 PM
i thought about putting a roots on mine but ive already gone 10:1 with .030 over and 58 cc heads and flat tops with true zero deck. i was informed bds would be the way to go and i priced their stuff, way out of my range. so much for a blower. the blow thru bonnet using the centrifugal blower looked promising until i started researching. nobody i know has that set up and theres a reason. the fuel pressure has to be metered correctly (impossible) between idle, transition, and wot as boost increases. suposedly they can do it using vaccum, yeah right. ------------------
coupe, 306, 4 speed, 4.11's. pump gas, n/a street car. best so far is 7.48 (1/8 mile) at 93mph with 1.64 60ft. 11.80 at 113 on greased 1/4 track.
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 12-16-2004 07:29 PM
quote:
Originally posted by chip67:
the fuel pressure has to be metered correctly (impossible) between idle, transition, and wot as boost increases. suposedly they can do it using vaccum, yeah right.
I have done it succesfully for 30 years.
Piece of cake.  ------------------
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,& '04
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
IP: Logged |
chip67
Gearhead Posts: 245
From: louisville, ky, jefferson
Registered: Oct 2004
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posted 12-18-2004 12:20 AM
run a cetrifugal blower on a carb in bonnet motor? ive never seen one outside a magazine trying to sell it article. never seen one in person, only ever heard horror stories and thats why people do use this setup. im told the fuel pressure in the carb cannot be metered acurately seamlessly and in time with variations in throttle. fuel pressure must follow boost dead on or the car will not run right. fat and lean all over the place. if you have done it with good results, id like to hear about it. yes i know ford did it with shelby years ago and it wasnt a hit. ------------------
coupe, 306, 4 speed, 4.11's. pump gas, n/a street car. best so far is 7.48 (1/8 mile) at 93mph with 1.64 60ft. 11.80 at 113 on greased 1/4 track.
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Mpcoluv
Gearhead Posts: 1278
From: Charlotte NC usa
Registered: Apr 2001
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posted 12-18-2004 08:48 AM
Blow through carb setups have been around for years.
The fuel pressure woes are handled with a boost referenced pressure regulator.
Several carb shops sell carbs modified for blow through use.
Gale Banks did it with turbos also in the '70s and '80s.
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 12-18-2004 10:18 AM
It was a big hit with Shelby.
Most were sold over the counter.
Factory installtion added $600 to an already expensive Mustang.
Plus they were in competition with their own Supplier....Paxton. They under cut the price.For most applications using an Autolite carb, and operating in the 6-6500 RPM range, a simple over boosted mechanical fuel pump is the solution.
That is what was supplied with the kits from Shelby and Paxton.
You don't see many magazine articles on carb blowers because you haven't been able to buy a carb Mustang since 1985.
Most of the "magazine" stuff is all geared towards EFI. You know that. ------------------
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,& '04
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
IP: Logged |
bluestreek
Gearhead Posts: 1724
From: Athens,GA
Registered: Jul 2001
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posted 12-18-2004 02:58 PM
Here's the Paxton kit Alex is talking about.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=38634&item=7941170328&rd=1------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank, rods and girdle, TFS alum. heads, Stealth 8020 intake, Xtreme 268 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.50 @ 116 mph (7.33 @ 93 mph)daily driver!
DanH
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