650HP stock block

[ultraflo]

Originally posted by jim_howard_pdx
You must run the scrapper AND I SCRAPE BOTH SIDES!!! You must run a windage tray. You must run the girdle. That block you are using should be good into the 7's.

I only plan on running a windage tray... the block alone is rated at 1200HP from Ford, and I only plan on making 750-850 which is not even close to the limit

I suspect that the NOS is the cause of the block damage.

I'm sure it didn't help any, lol

You might want to change cranks just to be safe. I would ask a couple of Ford Motorsport dealers what they use in the 8 second brackets. Expect to pay 1,000 to 1,200 for the critter but it will resist the wrap up that causes this kind of damage.

The crank is a Trick Flow forged, nitrided unit with radiused journals that is rated to handle 1000HP and 10,000 rpm, again, I shouldn't have to worry about the crank


If the problem is with the nitrous then here goes my favorite fix.
I hate giving up all my secrets. SO KEEP THIS TO YOURSELF.

LOL, I promise

ALL 9 second cars are going to pull the tires off the track. If it doesn't happen you are in trouble. Something is broken or wrong. If you keep your foot in the throttle you will come down soft and without any control issues.

I was yankin' the front wheels running high 11's... ...it's the wheelstands that really get my attention, nearly dragging the bumper is not a good launch! I'd like to dial the suspension in the lift the front tires about a foot off the ground while still achieving respectable 60ft. times

My NOS systems are always PROGRESSIVE. I run about 200 hp on the first circuit and 375 hp on the second. That means two NOS tanks, two blankets, and lots of extra lines and hoses.

I've run a single stage, single nozzle system all year and will be looking into running a second stage via NX EFI plate system.... and I will most certainly be running two separate nitrous/fuel systems Yes, sir!

Thanks for the insight... I appreciate it!