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first BBF build!!!

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schmitty
63.5Galaxie
quick 52
rmcomprandy
mikey hefner
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Post  mikey hefner June 26th 2012, 1:34 pm

im going to be using a flat top for the SCJ or P51 and also i have a moroso 7qt drag pan. that should put me around 13.24ish for compression i think. may be wrong though. thanks for that run down. any idea on power/torque numbers estimated???

mikey hefner

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Post  mikey hefner June 26th 2012, 1:35 pm

thanks Blake it all helps!!

mikey hefner

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Post  rmcomprandy June 26th 2012, 5:11 pm

mikey hefner wrote:im going to be using a flat top for the SCJ or P51 and also i have a moroso 7qt drag pan. that should put me around 13.24ish for compression i think. may be wrong though. thanks for that run down. any idea on power/torque numbers estimated???

As Blake said, it is all about the whole package.
You will need at LEAST the 700 horsepower with a top notch, well sorted-out car. As the car and its components get less ... you will need more power accordingly.

rmcomprandy

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Post  IDT-572 June 26th 2012, 11:47 pm

Thinking about your wants some more, I probably would suggest an A headed engine of milder proportions all the way around and still make the power you need with room to grow, as speed is addictive.

My engine is on the outer edge , you could build the same power with an A headed deal about as cheap, and a bunch easier.

Just something else for you to chew on. Wink
IDT-572
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Post  quick 52 June 27th 2012, 6:16 pm

IDT-572 wrote:Mid 5's @ 3000 lb is all about a good working package. HP is key but your chassis has to be on par with the power you are producing, as it has to be put to the ground.

I am running 5.40-5.45 average @ 3000 lb 4.530 bore x 4.5 stroke, ported P-51s, roller cam 15:1 compression.

Glide 1.80 planets, 4.30 gear 29.5x13.5 M/T (now 14x32 Good Year). The engine made over 1000 hp on the dyno.

It should be running faster with the hp it has. Still working on the chassis. (learning)

4340 crank 6.8 inch 4340 rod , BRC pistons.

It takes a good bit of power to run mid 5's @ 3000 lb and a good car.

Hope this helps.
look at the build of this car an all the ones in the bbf shootout if 700hp would do it then these racers are sand bagging you need a lot of car to run those numbers

quick 52

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Post  mikey hefner June 28th 2012, 2:57 pm

this is a run down of the car: 12 point cage, through floor conectors on top of sub frame conectors, sound deadner removed, all heater/ac garbage removed, gutted factory dash, UPR K member w/1 inch shorter arms and 1.5 inch spacers, AJE drop spindles, Aerospace drag front brakes, Strange adjustable struts and shocks, 14 in 175lb coil overs on front, stock 4 cyl springs rear, UPR double adjustable upper/single adjustable lowers, double anti roll bar, wishbone locator, 8.8 w/spool and 4.30 gear. all bumper reinforcements removed and one Kirkey race seat 15/3.5 race stars front and 15/10s rear w MT 275/50r15s. ive done the best i can do w/ the car with the money ive had to spend which was accumulated over a few years selling scrap metal(seriously). i hope it will work good for me. im hoping with some of the info given on this posting i can build a decent 800ish HP 521. if this helps any on engine build direction it would be great. thanks again everyone for taking the time to help!!!!

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Post  rmcomprandy June 28th 2012, 4:06 pm

quick 52 wrote:
IDT-572 wrote:Mid 5's @ 3000 lb is all about a good working package. HP is key but your chassis has to be on par with the power you are producing, as it has to be put to the ground.

I am running 5.40-5.45 average @ 3000 lb 4.530 bore x 4.5 stroke, ported P-51s, roller cam 15:1 compression.

Glide 1.80 planets, 4.30 gear 29.5x13.5 M/T (now 14x32 Good Year). The engine made over 1000 hp on the dyno.

It should be running faster with the hp it has. Still working on the chassis. (learning)

4340 crank 6.8 inch 4340 rod , BRC pistons.

It takes a good bit of power to run mid 5's @ 3000 lb and a good car.

Hope this helps.

look at the build of this car an all the ones in the bbf shootout if 700hp would do it then these racers are sand bagging you need a lot of car to run those numbers

ASK most of those guys and they will admit that their car is not able to use ALL the power their engine can supply.
If they could USE all their horsepower they should go faster; I don't think anyone is sandbagging there, LOL.

Go to the INDY NATIONALS and REALLY look over the attention to detail of the higher Super Stock class cars and that would be a good indication of what is needed to go fast with that little amount of power.

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