wadzii

You can always add more parts and make more power, etc.. it comes down to what you want.

"standard" oem rebuilds are extremely expensive for these motors. They are all always too worn out to re-use the stock pistons.. you can just hone the block and knock new rings on the old pistons, but I only do that in situations where thats the only option due to budget or time restraints.

DougEFresh

Nathan didn't know you were still around. Good to hear

AE85

Thats a massive amount of engine work for 20HP! Why not rebuild the engine close to stock, and just get some ITB's?

Feezy

Because ITB's aren't going to get you 20 HP on a bone stock motor, not to mention after you rebuilt the motor to OEM specs you will need to buy the ITB's, injectors, vacuum blocks, fuel pressure regulators, fuel lines, assorted vacuum lines, assorted fittings, an EMS, a tune, and a handful of other things I'm forgetting. You would be into the motor for way more than the $5,000 budget.

AE85

You will need most of that with a worked motor also... and the ITB's I have seen around say a 30-40HP increase? Which seems massive granted, but thats what they are saying at vtec cross over.

wadzii

A stock rebuild is just as expensive. 90% of s2000 blocks are too worn out to just re-ring. Oversize OEM pistons cost around $1000, machine work on the frm is expensive and not many can do it correctly.

AE85

Damn its a sad state of affairs when a rebuild means dry sleeving opposed to just rings and bearings...

Feezy

You will need most of that with a worked motor also... and the ITB's I have seen around say a 30-40HP increase? Which seems massive granted, but thats what they are saying at vtec cross over.
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I have ITBs, and I did a bone stock baseline dyno and an updated dyno after the ITBs. They were at the same dyno, pretty close to the same temperature, and only a few weeks apart. I added the ITBs, and AEM V2, and test pipe, and a tune and I saw about a 14hp gain. I'd kill for the 30-40hp increase that people mentioned, but I just didn't see it.

AE85

Feezy, that makes sense to me. If there was 30-40 in ITB's Honda would have put them on from factory!

wadzii

There are quite a few engines out there that have the same limitations.. an for example LS1/LS7 block can only be bored 0.005", 90% of those motors should be sleeved before they are rebuilt.

You can do a quick hone and knock new rings in it, but chances are it wont last as long as the original stuff did.