I am getting a 93 LS engine from a friend for doing some work on his car, I want to make it into a LS/VTEC, I know that I need to run an external oil line for the VTEC sol. upgrade the oil pump to the B16 pump. What comp ratio is had with this combo and do the dowel pins for the head/block line up? I plan on building it all motor for a 1G CRX. Any ideas or experience youd like to contribute?

Thanks,
Cj

I accidently posted this under the classifieds.....oops

 

What pistons are you plan on using with this?

 

search..

 

1.Use ARP head studs
2.Use pistons with larger valve reliefs for the VTEC valve diameter
3.Use Type-R oil pump
4.Balance and polish the crank
5.Z10 Block girdle
6.Don't tap into the back of the block, use the Z-10 oil pump fitting (not that tapping the block is bad, the Z-10 fitting is cheap and looks of better craftsmanship, even though they perform the same)
7.Go ahead and sleeve it when you build it, and buy aftermarket rods, or you will regret it later.
8.Replace all the seals when building the motor and don't forget the rear main.
9.Go ahead and buy a new oil pickup (this isnt neccacary, but seeing as they are checp, why not get one while building the motor?)

As for compression, go low compression for turbo

IF you insist on all motor, you can safely run 11:5 compression pistons on the stock ecu without worrying about quality of gasoline.

With proper tuning, you can run up to 12.5:1 on pump gas.

 

ok this sounds about right.......u can use a gsr pump or type r pump (both out flow the b16)..................as for the block girdle, its recommended but u dont have to have it(just dont rev past the 8000-8500 range)........hope this helps

 

hey the typer oil pump is the same as a gsr and is the same as a b20crv....it most likely going to be cheaper at honda then acura.....15100-p72-a01...thats the part number........if ya have any other questions about any honda parts LET ME KNOW....later from honda, columbus,ohio

 

As far as the comp ratio goes I was aking wht comp ratio would be had with the stock B18 pistons, I dont plan on using them though. How well does this setup run? Which ECU would run this setup the best??

Cj

 

Compression Calculator
I think that you'll find that a lot of people use a chipped p28 with their frank motors.

 

chipped p28

 

I used PR3 ecu