So who here is running a blower?
#4
Re: So who here is running a blower? (Alwyn678)
your gonna have to run a good rotating assembly. you will have to run about 8 to 1 compression. You may need a better fuel system to run the two holleys.
#5
Race Director
Re: So who here is running a blower? (QuickVet)
I have completly disconnected my blower, I don't drive in the winter and in the summer it is very hot.....oh that kind of blower talk to Norval he is the expert :D
#6
Re: So who here is running a blower? (Alwyn678)
It is possible to just bolt a blower onto a stock motor. The only thing I had to mod on mine (beside the hood :) ) was to get extension on the fan to push it out 3 1/2 inches. That being said mine is the smallest blower you can buy and has one carb. To get the max HP out of one like in your picture you need a really strong motor with heads that breath like a dragon. :steering:
#8
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Location: Dayton Area Ohio
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Re: So who here is running a blower? (Alwyn678)
It really depends on how much power you plan to produce... how much boost your looking to put into the motor.
If your doing it for more show-then-go.... then min changes are:
-8:1 compression
-Dual holley 600
-Blower cam
-bigger radiator (these things cause alot of heat)
-hi-flow electric fuel pump
-under drive the blower 10-15% and no more then 5psi boost, you'll be fine with a stock bottom end and heads.
If your looking for power and going to over-drive the blower and put 15+psi boost... you'll need:
-forged rods, forged crank, forged pistons, double row chain
-BIG R-port aluminum heads.. AR's or Brodix work well.
-forget the carbs, go with injection.. either mechanical if you really understand injection.. or go with the BDS electronic injection.. it's good for 1500HP in stock trim.
-Auto transmission w/3000+ stall .... modified TH-400 will hold up. Don't even think of a standard for a street car running a big blower motor... You can't imagine the amount of low end torq it will create.
-Everything in the driveline will have to be beefed up to handle the added torq this will create. Yes, it will distroy parts quite easily!
:reddevil
I've ran blowers on cars, trucks, pulling trucks, pulling tractors for years.... One of my favorite sayings is...
"injection is nice... but I'd rather be BLOWN!!" :thumbs:
If your doing it for more show-then-go.... then min changes are:
-8:1 compression
-Dual holley 600
-Blower cam
-bigger radiator (these things cause alot of heat)
-hi-flow electric fuel pump
-under drive the blower 10-15% and no more then 5psi boost, you'll be fine with a stock bottom end and heads.
If your looking for power and going to over-drive the blower and put 15+psi boost... you'll need:
-forged rods, forged crank, forged pistons, double row chain
-BIG R-port aluminum heads.. AR's or Brodix work well.
-forget the carbs, go with injection.. either mechanical if you really understand injection.. or go with the BDS electronic injection.. it's good for 1500HP in stock trim.
-Auto transmission w/3000+ stall .... modified TH-400 will hold up. Don't even think of a standard for a street car running a big blower motor... You can't imagine the amount of low end torq it will create.
-Everything in the driveline will have to be beefed up to handle the added torq this will create. Yes, it will distroy parts quite easily!
:reddevil
I've ran blowers on cars, trucks, pulling trucks, pulling tractors for years.... One of my favorite sayings is...
"injection is nice... but I'd rather be BLOWN!!" :thumbs:
#9
Team Owner
Thread Starter
Re: So who here is running a blower? (Redshark6974)
Al, your not getting this for the 74?? are you??
[Modified by Alwyn678, 8:51 AM 8/11/2003]
#10
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Location: Dayton Area Ohio
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Re: So who here is running a blower? (Alwyn678)
At low boost levels a 671 or 871 can still add a significant amount of low-end torq. Blowers are great, but can be a bit tricky to get tuned... One word of caution.. ALWAYS run towards the rich side!! Never let a blower run lean, or you can burp the blower, which can kick a rod, trash the valves, etc. :eek:
But once you go for a blower.. you'll never want to go back to na again!! :thumbs:
Have fun! :hurray:
But once you go for a blower.. you'll never want to go back to na again!! :thumbs:
Have fun! :hurray: