of course... that's what they are selling though... they're going for numbers... not that it's bad or anything, just nothing I'd consider because day to day reliability is a big factor for me... Once they start selling, and get all the bugs out, I'm sure it will be a great product, but there are obviously a few issues to be resolved...

 

Oil squirters are stock on multiple honda engines, The NSX, B motors, H, motors Etc. Etc. It's beyond me why you remove the piston cooling/lubrication from any of these engines.

So far the big #'s I've seen on this thread are 3 junk engines.

 

that's the thing about the big numbers, they don't last...

 

no engine is alredy packed

 

Matt, sorry to repeat the question but I am keen to know as well (if you don't mind)

Local skyline modifiers had similar problem to this when they upgraded with nismo oil pump. The problem occurred after prolonged high rev. Where the pump just empty the oil from pan into the head faster than oil return. The solution was a smaller restrictor, a nismo restrictor.

Juan it may pay to get an oil pressure gauge with some sort of playback function and keep an eye on the oil pressure.

Good luck with the rebuild Juan.

 

You can increase and also have more consistant oil pressure through-out the engine by removing the oil squirters. It's believed be some that the amount of friction between the iron sleeved blocks and the aftermarket aluminum pistons is low enough to not need the cooling or lubrication of the squirters. Some people go without it and others decide to keep them. It's more of a safety reason to keep them installed. The chances of oil failure related damage increases greatly with the lack of the squirters and the factory oil pump is a great unit and there's honestly no benefit to plugging the squirters.

I would place the blame on the squirters being plugged up. This wouldn't be the first time there has been damage due to no squirters. It's too bad you already agreed to their terms.

 

you can run without squirter but you should have larger piston-wall clearance

 

??? I have a good point. They made the motor, sale the motor and have blown 1 up. They tell you to do this for a reason. If he would of listend to them and used the 440s or more then they could of not said it was his fault! Next time listen, thats it!

 

But it's pretty much decided that the motor didn't blow from running lean

14.5's on a N/A motor isn't gonna blow it with 91-93 octane...and definately not in the low amount of miles he had on his motor and ESPECIALLY with low throttle. Here's a factory example...my bike:
12.8:1 (or was it 12.4:1) compression
91 Octane minimum
14.5's all across +/- .5 at different RPM's
Built for high load safely

If 14.5's are so dangerous on a well built block N/A block...a lot of manufacturers would be pulling out and revising. The knock sensor would have pulled out a lot of timing if there was knock. It's easy to just blame him since he made a mistake but the odds are heavily that it wasn't just the injectors. Majority of the time, low load & short milage engine failures are defects in the engine itself, not the tune.

He also stated that the plugs were fine and didn't show anything abnormal which also goes against pre-ignition from bad gas or w/e.

Running lean might have caused it, but it's pretty unlikely...maybe if he was gunning it around and didn't tell us. But it doesn't matter. He already agreed to pay for basically half.