Engine Rebuild - Whats Needed?

[Stuarty]

As some of you may know i managed to blow my B16B block up (long story) so ave decided to put a B18C in now. I'm using my old B16B head and putting it onto a B18C block from a JDM DC2 but putting EK9 pistons in while the engines stripped. What i want to know is...

What exactly do i need to do/replace to rebuild the bottom end?
Will the EK9 pistons go onto the B18 rods?
Will getting the head skimmed be ok?
Should i use OEM parts only?
What ECU/Management should i run?
What have i missed out???

I would like as much info as possible on everything so if anyone can fire more info my way then that would be superb.

Cheers

 

[way2fastforu]

well the b18c block is the same as the b16b block so if u plan on usin ur ek9 pistons an head u can run ur ek9 ecu...if ur rebuildin the bottom end id suggest new shell bearings piston rings an replace all the seals like crank an sump seals wit fresh ones also worth puttin a new oil pump in too if your gona go that far....wat went in ur old engine that it blew??

 

[blinx9900]

this is how i do it:

block:
-new pistons .25mm over with new rings
-block bored/honed to accept new pistons
-new rod and main bearings
-new thrust washers
-new oil pump and water pump
-head studs

head:
-resurfaced to make sure its flat (NOT SKIMMED)
-3 angle valve job
-new valve guide (valve stem) seals

i would just use the b18c pistons and a thin headgasket if using OEM ecu as your comression will be 11.6 which is not too bad, however with CTR pistons and stock head gasket your compression will be 12.8 and i strongly suggest tuning for that or you may blow it up again...

 

[B16A2R]

blinx,
i m thinking of the same setup [b18cR block+PCT], would the b16b cams compatible with such high compression[ 12.8:1] (will be tuning the JDM B18cr ecu with e-manage). thinking to churn 200whp+ for such setup with 145+ of torque

thanks!!

 

[blinx9900]

people have done it before with a thin head gasket to boot s othere certainly is room for the piston to valve with the CTR cams but I'm sure there is a limit to how much you can adjust the gears, best to speak to someone who has actually done it...

 

[RagingAngel]

well the b18c block is the same as the b16b block so if u plan on usin ur ek9 pistons an head u can run ur ek9 ecu...

Uh....no.

the BARE block itself may be the same but that's where all the similarities end.

The compression is SO much higher than the EK9 and then there's the issue of displacement jumping too.

Using the EK9 ecu for a high compression 18C is a very bad idea.

Unless you have a good competent tuner who can remap for high compression, I would advise against running this setup. The EK9 piston is not known for being very efficient due to its high dome and heavy weight. I doubt many know how to shape it properly to help flame propagation (myself included).

I'd also send them out to get lightened if that's really what you're after, but after the cost of machining and balancing, why not get a set of good aftermarket slugs instead?

To determine what the limit/range of adjustment is with camgears, you need to clay the motor beforehand. If you simply slap it together and go to the tuner not armed with all this knowledge and he starts moving the gears and the pistons make love to the valves .... it's not his fault. It's yours.

 

[Stuarty]

this is how i do it:

block:
-new pistons .25mm over with new rings
-block bored/honed to accept new pistons
-new rod and main bearings
-new thrust washers
-new oil pump and water pump
-head studs

head:
-resurfaced to make sure its flat (NOT SKIMMED)
-3 angle valve job
-new valve guide (valve stem) seals

i would just use the b18c pistons and a thin headgasket if using OEM ecu as your comression will be 11.6 which is not too bad, however with CTR pistons and stock head gasket your compression will be 12.8 and i strongly suggest tuning for that or you may blow it up again...

Exactly the answer i was looking for

Thanks mate and also cheers for the other replis guys, no doubt a'l be adding a few more questions in here soon.