Thanks,

Now its time for it to come back apart, it ran so well that I hate to but my new crankshaft came in and I dont completely trust whats in it now.

This last weekend was our first race of the year and I just wanted to say, we are off to a good start.

Build the motor wednesday, started it thursday, raced it friday, ran great.

Someone caught me doin a john force burnout on tape!

http://www.youtube.com/watch?v=JfyZSw59R_o

If the pistons were designed to be in a NA motor I would not trust them with a blower even at low boost pressures.

oh on the rod side of things has any one used the howards ultimate duty forged billet rods. Just from the phrase (forged billet) I would stay away from it. Forged rods take a raw casting and whack it a few times to make the shape of the rod, then machine it. Billet rods are machined from extruded m...

Dont be scared of aluminium rods, I've run them for years without one breaking. A good billet rod is better than a forged one in my opinion, but we've run both and never had a problem with either. There are two things that will kill one, not enough bearing clearance and cold oil. !!!Don't load the m...

You always hate to see a motor hurt itself, but look at the bright side, you caught it before it completely grenaded and took everything with it.


Its not the cheapest way to learn something, but its damn effective.

This is a decent pic of what mine do. Every now and then i can pull a 1.28 60' most of the time its a 1.30 or 1.32, after about 100' it gets up on the tire and hauls balls.

If it aint a handfull, it aint any fun!

I run a 31.25x12x15 of phoenix's, they hook pretty well but their sidewalls cant support my wieght and violence at the line and its killing my 60'..... and my tires.

Whats your main bearings look like?

If you are shaking the crank hard enough to bent a snout, you will probably have skuffed some mains too.

How do you like that tire?

Im looking to try a different tire this year and that one is right in my size range.

vegaracer wrote:He was breaking snouts with a crank support. I guess it just didn't like a 14-71 high helix.

A 14-71 HH on a small block, haha, I love it!

This is just a mild-ish 6-71 motor.

Blower and crank snouts? It is not a matter of if the crank break but a matter time and when it will break. We have broken then all at one time or another. Blower cranks need to have scheduled life cycle and get it out of the block before it fails. Any blown motor is going to be tough on parts. A s...

Do any of the small block guys in here use cranks with bbc posts?

I'm looking for one and would like to know who you use?

We used to run harder bearings and after adding a blower the mains didnt hold up well, now we run soft single layer babbit in the mains and hard multi layer in the rods. It seems to be working, it had 10 hard passes on it when we tore it down this winter and all the bearings looked good. If you have...

OH dang, I like your comet, that would be a sweet street car, but if your racecar is like mine it'll eat all your time, money, patiants and just keep wanting more.