WoW. All that hard work to put that engine in. It just brings a tear to my eye to see it pulled out. And to think all that finger bashing =(

Instead of boring out that motor why not stroke it?

I know it would take new connecting rods and pistons but wouldn't it be easier than getting the other pistons?

I know the lower CR will allow for better boost but does this mean you are putting that 10lb pulley on? =)

 

sorry to hear about your motor, but i must say... your ride is siiiik!

 

what blew the motor? sorry to hear

 

The bits on the pistons were the two upper piston rings that fractured on cylinders 1, 2, and 3. The piston chunks seem to have blown out the exhaust valves and on to the cars behind me on the track

 

There is no need to stroke the motor as the crank and rods are good, with the supercharger it's easy to get as much HP as I want using boost. The reason we're boring is because CP stocks S2000 89mm 9:1 CR pistons and we have less than 3 weeks to get the car back together.

Also, since the block needs new sleeves it costs the same to do an 87mm bore or an 89mm. It doesn't make sense to leave it at the stock bore. I need to calculate how much boost I'm going to need and what size pulley we're using. The 5" stock pulley results in 4.5lbs at the MAP sensor which made 260hp at 9200, I'll need about 7lbs at the MAP to make ~300hp which means I'll be looking for a pulley between 4" and 4.5".

Fun fun..

 

We aren't sure. There is some evidence of detonation but my timing map was WAY more conservative than all of the local AEM tuned boosted S2000s so there may be some hidden parameter that caused this. We'll be combing through the tune soon to determine whether or not we have to scrap it and start over, we'll probably end up starting over due to the compression and pulley size changes.

 

Motor is done, assembly tonight! Pics soon..

 

Good Luck with the rebuild - looking forward to the photos.

 

This is a GREAT thread with lots of good pics.

I am totally impressed by your skills/talents and attention to detail.

The engine destruction is troubling.

Why did it occur? Were there any indicators leading up to piston parts coming out of the exhaust?

The experience you have had (you being infinitely more talented/skilled/experienced than I in these areas) is scary for someone like myself.

I would have no idea if 'joe tuner' did my car right, or did my car wrong (say if I wanted to add a turbo).

I understand there may be hidden parameters, or something not quite right in the tune, but if so, would there be other measurements, data streams, symptoms that would indicate a tune problem before catastrophic damage?

For someone like me (zero knowledge) how would a person even know if they were experiencing problems from a third party tune?

Is it simply a fact of life and chance one takes that a tuned car may just die and as such, it's part of the expectations and what a person has to pony up with that wants turbo?

 

Wow, I read from page one tonight. Well done. Hope to see some more vids of this thing.