Bigaaron's "5M crank in a 7M" build thread!
- Thread starter bigaaron
- Start date
As of 1pm today, the block still looks like this :cry: Everything was on hold while the pistons were being made.
I think I will have it back within 2 weeks. I have a few special things in mind for this build that will (in ARZ's words) "totally blow you away" :biglaugh:
I think I will have it back within 2 weeks. I have a few special things in mind for this build that will (in ARZ's words) "totally blow you away" :biglaugh:
bigaaron said:
So you don't plan on going big HP I assume? .. since that damper (off the shelf) is good for no more than 500 RWHP. Nice piece though.. I am waiting on my custom damper from them to be made.
Edit: Is this an off the shelf or custom made? Before I make assumptions
Duane
upgradedsupra said:So you don't plan on going big HP I assume? .. since that damper (off the shelf) is good for no more than 500 RWHP. Nice piece though.. I am waiting on my custom damper from them to be made.
Edit: Is this an off the shelf or custom made? Before I make assumptions
Duane
That's news to me. :aigo: Last time I called ATI about a custom pulley they told me 6 months and $800! Why is the pulley only be good to a certain horsepower? I could see if it was good to a certain rpm, but how would the hp affect the pulley?
I still think this engine belongs in a MK4 or a SC300 :rofl:
Keep up the groundbreaking work Aaron!
Keep up the groundbreaking work Aaron!
bigaaron said:
IIRC it has to do with the amount of vibration that is subjected to the crank/drivetrain at higher HP levels :dunno:
I called them to ask. I'll be ok, better then if it was the stock pulley. For higher horsepower they would use a larger diameter custom pulley, but there's no imaginary line at 500hp. At some point the dampener may not offer as much protection as it does at lower hp levels, but the stock one wouldn't be any better at any hp or rpm. 500whp is the upper end of where I want to go with this engine. It's more about performance and throttle response with this one.
bigaaron said:
My bad, I forgot to mention RPM in there as well. It is a 2 month wait and 900 bucks to be exact, ask me how I know.
I should of added this but rather than me coming up with this, Figgie said it best from my old thread.
figgie said:didn't i put it on here??
You are focusing on load when that is not the dampeners job
Duane
Being shorter stroke I'd expect less deflection at the same HP level so the 7M damper should in theory be good for more HP in this motor!
I'm sure ATI could calulate the new HP Rating for the damper if you provide them with the stroke info Aaron.
I'm sure ATI could calulate the new HP Rating for the damper if you provide them with the stroke info Aaron.
IJ. said:
That's a good point, I was kinda thinking that way too. With a fully balanced rotating assembly, and shorter stroke, I should be able to run more horsepower with less harmonics and vibration. That is one of the main goals for this project.
Either way, my bed is already made, so now I will have to lie in it. :biglaugh:
A rough "guesstimate" would be it'll raise the balancer HP level 50>80hp Aaron
Be nice to have ATI confirm this though.
Be nice to have ATI confirm this though.
I'll ask ATI on Monday and see what they think. The goal for this engine is to make a solid 500whp, and be able to make good power to 8k rpm.