Blown 714ci is it worth it?

I need some input from you guys. I have a customer that is putting together an outlaw P/M car and realy wants to go big inch but also wants to have a blower combo. My question is is it even worth it? I know the cost of the big motor is giong to be more than a conventional bae/aj motor. Do you guys think the big blower deal would make comparable power to one of the hemi motors? I am haveing trouble justifying the inches, a small moror is more efficent and parts are more avalible and I just don't see the big motor makeing any more power. Also what orginizations would that type of combo be leagal in? any input would be greatly appriciated. Thanks Branndon.

 

why?. . .it's funny when people try to re-invent the wheel. if you can go to the super market and buy everything to make spaghetti , why would you try to grow noodles thinking they will taste better. call brad and buy the parts, then call randy anderson and get a tune up. then go out and haul ass!.

 

If you are running an outlaw 10.5 car then yes it can work very well. With either a centrifugal or turbos the 620-700 inch motors work real well it allows you to run lower boost so a turbo car is easier to stage and a centrifugal car has a broad progressive power band.

On the other hand most of these are using 5 inch or bigger bore space engines and they take up a lot of room and are heavy, no big deal on a 3000+ pound car but on an Outlaw pro-mod it becomes a big/heavy issue, then of course you have to worry about rules....as Bruce said go out and buy the big power, theres plenty out there.

RG

 

I agree. But you konw how people are when they want something. But I'm asking so when he says It's bigger it should make more I can have a better arguement for going with the prooven power and so I can show him that I'm not the only one that knows that the wheel is alteady round and that works great. Can anyone give a good reason that the big inch won't out preform a say 450-526 inch. He is stubborn and dosen't agree. I told him if you want big inch put a bottle on it and he dosen't want to go that way.

 

Give him a price. That should stop him in his tracks. Start with Sonny's pricing for giant engines and add in all the blower stuff.

Dave Koehler
http://www.koehlerinjection.com

 

the problem you will have is crankshaft life. the stroke is so long and add the blower pulling on the snout of the crank, along with the serious cylinder pressure, and you won't get many runs out of the crank. get the tune up a little off and start detonating and you will be putting a crank in every week. another problem is the big motors are not designed to turn high rpm. so there goes power band where a blower motor makes it best.

 

And you will have trouble at the launch with all the extra torque.

 

will end in tears

 

Personally, I doubt its worth the headaches. But if you do give it a shot, let us know how it works.

 

I have a 672 BB chev blower motor for sale. Makes tons of torque. Don't want alot for it either.
672 BBC Short Block
Aluminum Merlin block-hardblock filled
4.625 bore
5.00 stroke
11.600 deck
Bryant billet crank
Jeff Johnston 2-piece kickout pan
Titan adjustable billet oil pump
MPG rods
4-7 swap cam
Donovan gear drive
Low runs
Indy blower manifold with burst panel
$7,000.00

Dale Hill
970-302-1232
DHECR250@netzero.com

 

A bigger motor will make more hp Lower boost: lower manifold temp. this is undenailable. The real question is does the guy have any kids in colledge and do you have any kids in colledge. Cause there gonna be a train wreck at the crossroads