i was talkin to a friend of mine that has done 5 ls/vtec swaps that are still runinng after a year, he said most ppl blow there engine because some ppl bypass installing oil squirters. he says thats y it gets such a bad reb.
any feedback

 

it gets a bad rep from the idiots that slap the vtec head on a stock bottom end and take it to 8k+ then complain about it to people on the net when it blows.

 

Yeah, what all would you need to do to let a stock ls bottom hold the 8k?

 

I have an LS/VTEC I built 3 years ago still running and I have no oil squirters. Most people who have kill stories are idiot engine builders. If you build it with quality parts and have a good engine management system you can rip that engine to 8g's all day. F machining in oil squirters, it costs too much money and is basically pointless.

 

balance the rotating assembly, new rod bolts if you'll be keeping the stock rods, and throw in a main girdle if you want.

 

im in the process of building an ls vtec in my 99' dc4 and am using:

- my stock bottom end (80k)
- a b16a3 head decked & hot tanked w/ stock internals
- obd1 p30 ecu chipped (dont know what chip to do just want it to eliminate knock sensor.

and i hear that will be safe as long as i remember that just cuz the rev limit is 8200, doesnt mean my bottom end can handle it. Have i been mislead or am i well on my way to a reliable daily driver? Just curious also, since im using a obd1 p30 and my stock ls dizzy, do i have to change any plugs like dizzy plug or any other sensors...(i.e. im using a obd2a-obd1 conversion harness btw) Thanks guys i need some help my swap is almost complete just need final decisions like this 1.

 

Oil squirters are a good idea, they keep heat off the bearings, because if the oil that makes the bearings work overheats, they fail, and when they fail your engine fails. They don't do things factory that the car doesn't need, it's just insurance to make sure the engine stays reliable and doesn't kill itself.

 

oil squirters arent necessary if you have forged internals

 

just a question, how does an oil squirter that is pointing at the bottom of a piston, keep heat off of a bearing that is below the oil squirter? From my origional understanding, they were meant to keep the pistons cool and only come in useful if the motor is run at high rpm's for extended periods of time.

 

Well the heat from the top on the piston has to go somewhere right? It goes through the rod bearing down the connecting rod and through the main bearings and into the block where the coolant takes it through the radiator and gets rid of it into the air. If that heat transfer isn't efficent it'll build up at some point and overheat the thin layer oil that the bearings use to work. The oil squirters help to get rid of some of that heat by using the oil to cool the pistons. A lot of the heat from combustion is transferred into the pistons and it has to go somewhere.