skill178

Ok.. here's the setup...
Got a jdm zc block with a y8 head. Stock valvetrain.
Eagle rods weisco pistons and a block guard. So I guess my question is what's the peak Ho safe to run on the stock sleeve and crank

skill178

That's called a typo.... How is it not a real question.. how much Hp can a stock crank and sleeves with a block hairs hold....

civicsi_guy

You will have better luck asking this in the forced induction forum instead of the EF forum

builthatch

dude you need to check your posts before you hit submit. it makes life easier for everyone.

i'll move this to FI for a more focused review.

skill178

Eh, never get very accurate spelling using swipe lol.sorry

nealnanoHX

SOHC non Vtec ZC block or Vtec block??? There are both and the Vtec blocks are a bit more stout. 250-280whp with ARP head studs on a good tune on the stock bottom end. The SOHC ZC motors are basically D series with a higher output, normally from increased compression.

4drEF

The stock bottom end isn't what he has.
He's not even asking that.

He wants to know what the stock sleeves and crank can handle.

Rule of thumb on the sleeves is 450hp.
Never heard of anyone using any aftermarket crank.
Some do the bearings a little looser for boost but not entirely necessary.

Take the block guard out and throw it in the trash.
This has been covered MANY times and can actually cause issues.

nealnanoHX

LOL missed the pistons and rods. 400-450 without sleeving the block. Crank will handle anything you can throw at it as long as the bottom end is balanced

skill178

So the guard is a waste of money? Always heard they help but I've never pushed enough power to worry about the sleeves. What can they cause to go wrong?

And I'm not sure if its a vtec or non vtec zc. It has the oil jet so i assume non vtec but when I got it there was a different head (not a zc) or Atleast I don't think it is.

Dc4LsTeG

iTrader: (7)

Search block guards have been covered many times

skill178

Ok. No guard lol.. what's the next weak point after pistons and rods? Sleeves or valve train? I can't afford to sleeve my block and if I did it wouldn't be a d series lol. Just want a good 300-400 Hp on this motor while I work on my b series crx

nealnanoHX

The sleeves will be the next weak link. 300-400whp with a properly built bottom end, good tune on stock sleeves is possible.

skill178

So zc block y8 head and 400whp funstuff

661rex89si

depends on the tuner

nealnanoHX

Yep. Like I said 300-400whp on stock sleeves if it is tuned well, Also depends on what fuel you will be running. If you have 93 at the pumps go with that or E85 if you have it in your area. E85 will require larger injectors though.

tron_

Keep the oem crank, at most get it micropolished. Ditch the block guard too. If you're really worried about your sleeves shifting then you should have gotten the block sleeved.

The stock sleeves can handle around 400hp.

skill178

Prolly be running 93.. got 660cc injectors though.