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Author
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Topic: is my v2 high ouput blower
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Duncan Motors
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Member # 7045
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posted
 
 
is it running out of breath so to speak on a 351? somebody mentioned it an i didnt know such a thing,, any ideas when these blowers run out of breath?
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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Fostang
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Member # 3752
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posted
V2 blowers if an S is only slightly better than a v1 S.
The angle cut gears allow it to spin a fraction faster thus outputting a bit more psi.
Having said that most Ive seen them put out on a 351w overspinning them is about 550rwhp. Upgrade it to a T or novi2000.
Overspinning creates heat which creates detonation which creates blown headgaskets or worst.
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
57' Chevy Bel Air Lsx
68’ Pony Convertible
66’ Pony Coupe
Posts: 3011 | From: Stockton/Danville | Registered: Nov 2003
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SmokinLX
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Member # 1684
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I think you can do the SI upgrade for about 300-400 dollars. Have heard good things from people who have done this upgrade! How much boost Do You h e now and how much are You shooting for? What's Your pulley sizes?
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Dont claim power if ya cant mile per hour. 10 second AOD
Posts: 4388 | From: East Bay | Registered: Aug 2002
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Duncan Motors
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Member # 7045
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posted
10 to 12 pounds, its just a stock unit ordered as the <high output> one right below the renegade, im not sure what cut or anything as stock with the high put is detailed as. CAR MADE 400 HP AT 3800 RPM WITH only 3 pounds of boost, my inter cooler wasn't cooling off efficiently so every run i lost a pound of boost, so it got a get home safe tune, so far ive upgraded my heat exchanger 4 times bigger for the air to water intercooler, plus dual fans, an opened up alot of incoming air room in the front bumper set up, it seems to be consistent now, dyno again in a couple days and just was wondering, anyway how can tell if this will be a problem?
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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Vndcatr
CAFords OG
Member # 2343
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posted
its a beatin topic, People overspin them all the time. Add a meth kit if your worried about heat.
You should see 1-2 lb psi drop through a well flowing large intercooler.
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Built 01 cobra
400 rwhp
11.7@117mph , 1.62 60ft
Posts: 1066 | From: Sacramento,Ca | Registered: Jan 2003
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Duncan Motors
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Member # 7045
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posted
ive seen 11 pounds of boost tops if it was cool outside, I haven't tried again sense the heat ex changer upgrade. I have the 3.33 pulley, that came in the kit. Im fine with 10 to 12 pounds
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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racsirx
CAFords OG
Member # 1710
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posted
I think a S-trim can feed a 351 if it's built right to the limits of the S-trim which around 680hp and the limits of a two bolt main 351 block, so you are seeing 11lbs with a 3.33 pulley? You don't know if you have a V2 S-trim or V2 Si-trim? If it's a S-trim it cost $800 to upgrade it to a Si-trim, you won't see a difference from a S-trim to a Si-trim or T-trim unless spinning the blower higher than 50K impeller speed, I don't think a S-trim can feed all the pipping with an intercooler unless you over spin it, blowers boost level vary from efficiency of the motor, so more efficient the motor the less boost you see, my SQ-trim with a 3.33 pulley made 566rwhp on my 331 and we were only seeing 6lbs of boost. Here is the vortech calculator so you can determine how you are spinning your blower, the more you spin it, the more air inlet temp you will see
http://www.vortechsuperchargers.com/page.php?id=33511
http://www.vortechsuperchargers.com/page.php?id=30005
http://www.vortechsuperchargers.com/page.php?id=30007
[ 2014-08-21, 09:38 AM: Message edited by: racsirx ]
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88 Saleen #564
88 GT 331 NOVI2000
88 Coupe TURBO 9.75@142
95 Cobra R #75-SOLD
06 F250
13 BMW AH3
17 GT350 #5556
GOD'S NOT DEAD
Posts: 20750 | From: Concord & Pittsburg, CA | Registered: Aug 2002
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Duncan Motors
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Member # 7045
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posted
those links lee made it like cheating, thank u. so my blower tops out at 50,000, with my set up, at 6500 rpm it will spin at 49, 124,, so i geuss ill just leave it.
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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Fostang
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Member # 3752
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posted
Just upgrade it already.
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
57' Chevy Bel Air Lsx
68’ Pony Convertible
66’ Pony Coupe
Posts: 3011 | From: Stockton/Danville | Registered: Nov 2003
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