A while back i spun a rod bearing in a 100% 42,000 mile all stock 2002 car during very aggressive driving/cornering. Repaired the engine with new crank and rods and bearing from Honda. Recently hard LHT install Science of Speed super charger kit with air to air I/C Car runs great made 444HP to the wheels on 110 Race fuel.
about 500 miles on the car since getting it back and the other day made a slow roll full pull 1st,2nd,3rd gear to 90MPH lifter the throttle pushed the clutch in because there were cops coning the other direction, Shifter into 4th gear and released clutch and discovered the engine is locked up. Hit the starter button, yep, shes locked up tight. so time for a built motor along with a Canton Oil accumulator kit along with a Moroso baffle kit because apparently there isn't enough oil to handle this type of driving with out starving the motor.

Strongly considering a Inline Pro 2.4 short block with the K24 crank, Inline pro rods and what ever pistons they suggest/use

who has been there with Spun rod bearings and solved/eliminated the problem ? what did you use?

Who has a Inline Pro 2.4 stroked motor and how long has it lasted.

 

I would simply recommend slowing down on public roads.

 

I don't think your issue is oil capacity or baffling. You'd be better off doing a root cause analysis and figuring out if you got bad gas, a bad tune, or something else. I don't see why the assumption is that this is an oil pan/baffling issue. Especially if you were just running through the gears on the street, I don't think it's in any way reasonable to assume that to be the issue. Running an aftermarket pan comes with its own issues and the factory oil pan/pickup have proven to be very good.

I just had my head done by IP and so far, so good. They were a great company to work with, great customer service, and turned around my job very quickly. If I were doing an engine, I'd consider their 2.4 build as long as it was from a known good stock block with OEM sleeves. Pressing in aftermarket sleeves seems to shorten the life expectancy. If you're fine with that, I'm sure it's a great engine. "Built" engines in these don't buy you a lot of performance and seem to not have a great track record of reliability.

 

Where would the fun in that be.

 

Did you have enough oil in the engine both times?

Your issue is quite strange.

 

How long did the engine run after it was rebuilt? 500 miles total? or just 500 miles since going SC?

 

First time it was about a qt low. This time full.

 

The first rebuild with new crank rods and bearings from Honda had about 1000 miles on it before the supercharger was installed about 500 miles was put on the car after the supercharger was installed before it broke. Tune on the car was good it was clean car runs very well air fuel ratio’s are good etc.

 

The second issue doesn't sound at all like spun bearing. Sounds more like thrust washer bearing seized.

A spun rod makes noise, a lot, but doesn't seize motor.

My bet, the partial rebuild from Honda wasn't done right, and was going to seize up eventually anyway, sc or not.

Biggest mistake was not racking up a bunch of miles right after Honda did the work, to prove it was done right. Guessing the work was done years ago (as ap1 cranks aren't available for a while now). So no recourse with them (its been years and now you added fi. No one gonna side with you on their fault).

Never a good idea to add fi to a motor that isn't already proven reliable.

 

Good call ^^ History of bad batch of thrust bearings and failures iirc ?
Correct size bearings ? did tech plasti gauge engine bearings with install procedure ? or just use size spec on block carrier?
Op does not state a Honda built engine only new Honda parts used ? if so who rebuilt the engine ?