Man that sucks, that's just bad luck, I would just put it back to stock especially since its your dd

 

Am I the only one that reads that and thinks he should be able to get his own car back so he can work on this one?

 

I can't really now seeing as I broke the block too..
I'm thinking of just doing a lnf swap, and parting out my lsj since I still have a lot of good parts on it. I guess we will just see when I go back to my shop tomorrow and take a better look at it all now that I've had time to cool down a little bit

 

in any other case I would take it back but the friend I lent it too is just getting back in their feet aswell as getting their life back together. So for the next few days I'll be driving the built Camaro till I find something out..

 

what pulley diameter are you running? who tuned it? does the ic pump work?

must be on stock exhaust if you can see the boost gauge max out.

 

Just see Mongo for a short block and start over with more realistic goals this time. If you want to do 20+ PSI buy a TVS if you want to stay SC or go to turbo. Trying to push that much on the little M62 is just asking for it to blow up. Fine if you just use it on the weekends but not a good idea for a DD.

 

23 psi is not smart on the M62. No wonder the sleeve gave.

Turbo it or TVS It

 

This

 

yup when i saw 23 psi i was like damn that engine is gonna be pulling timing on an m62 especially if you had a ported head and everything still seeing numbers that high. what pulley was that on a 2.6? 2.5 with a machined snout?

 

This x2456887533
And get a new tuner/builder
If you were looking to not push that motor to the breaking point 23psi on the m62 was not a good place to start

 

I'm thinking about just swapping it with a turbo'd motor, anyone have any experience on how much work it is to convert a sc to a tc?

 

not worth it, some dude did it on here and it cost him more than just buying a TC outright. they may look similar but you need a donor car, wiring from front to back etc.

The LSJ is a good motor, I would not want to swamp an LNF into an LSJ car personally.

 

as stated, it would be hard to do and expenseive. on top of that, you would have a harder time tuning for e85 if you wanted it in an lnf, you wouldnt have the ability to change to "much" larger injectors as can be done with the lsj since the lnf is di, and tuning an lsj isnt hard. the lsj can handle good power on a stock motor. but there is no reason to boost the crap out of an m62.

what supporting mods do you have now? are you on a 2.5" pulley, stock head, and stock exhaust. thats the only way i could see you making 20+ psi. but i dont know how you are measuring that without an interceptor or other boost gauge, as the stock gauge only shows up to 20 psi

 

My motor has a .020 over bore, it's forged, ported m62, zzp 2.7 pulley set & tensioner, stage 3 ky clutch, 80lb injectors, zzp long tubes, 3.25 all the way back, 3 in intake, solid mounts.
I think I may just part out the whole car cause it has low miles and good parts.
Not sure though..

 

this

 

The weak point of the stock LSJ engine is the pistons. When you replace the pistons with forged components the new weak spot is the sleeves.

It is extremely common for people to break sleeves with forged pistons. It's happens hundreds of times on the LSJ.

You should have gotten new sleeves from Mr B and had the sleeves custom honed to fit the new pistons.

 

So let me get this straight , you rebuilt you motor, with all the good stuff, then put 23 psi on a rebuilt motor, with out braking in the motor slowly 1,800 miles is not enough for a rebuilt motor to brake in, with 23 psi of boost , you should have dialed back the power, and drive it soft, till the motor had more miles.

 

How many people here understand why the 23psi wasn't good on M62?

I just assumed 1500 of those 1800 were break in. Then the last 300 were hard miles and blew it up.

 

MOre psi = more boost at all times right?

 

Not 100% true. Boost and heat seats rings

 

Fixed

 

MoRe bO0st iS pow3R rite guys

Boost pressure means nothing lol

 

TIs what I meant to type, /fail

 

boost gets you laid. moar boost gets you laid moar.


I'm wondering why people are telling him to turbo it. lotta help that's going to do that broken block now.

OP are you going to build up again or toss a runner in there and unload it?

 

Maximum LAG.