The B20VTEC discussion thread

**riruiz_88** · 03-12-2011 04:48 PM

it would affect the performance/maintenance of the motor, would it?

what would you suggest if you wanted to run an oil cooler with the vtec sandwich plate?

**riruiz_88** · 05-12-2011 03:40 PM

any suggestions to this??^^

**TODA AU** · 05-12-2011 04:17 PM

Originally Posted by riruiz_88

any suggestions to this??^^

You're answering your own question,
So what do you want to know?

**GSi_PSi** · 05-12-2011 04:42 PM

Bud people have been running the oil cooler and sandwich plate, as long as you have proper gasket to go, i dont see why it should be a problem
here is a pic of a stock b18c oil cooler on a b20vtec + sandwhich plate

**riruiz_88** · 06-12-2011 05:22 AM

im no mechanic so thats why im asking, someone had to right.
i wanted to know if running 2 aftermarket sandwich plates, nothing would fail?

thanks for the above pic

**TODA AU** · 06-12-2011 06:12 AM

Originally Posted by riruiz_88

im no mechanic so thats why im asking, someone had to right.
i wanted to know if running 2 aftermarket sandwich plates, nothing would fail?

thanks for the above pic

You only need 1... (OEM oil/water heat exchanger + sandwitch block)
If you have an oil cooler sandwith block, you can run the vtec oil supply from this.
Don't stack up sandwitch block on top of sandwitch block, you're asking for trouble.

To use the B16/B18C OEM oil/water heat exchanger you'll need to add a water outlet fitting to the block.
This hole is blank on the B20

**Bludger** · 06-12-2011 09:26 AM

Originally Posted by TODA AU

To use the B16/B18C OEM oil/water heat exchanger you'll need to add a water outlet fitting to the block.
This hole is blank on the B20

interesting.

can't wait to get one on a stand and check it out for myself.

**spetz** · 07-12-2011 03:25 AM

Guys sorry if this has been covered, but I have not read all 77 pages.
Can anyone tell me considering the bore is some 3-4mm more than the B16/18, and the head comes from the B16/18, do any modifications need to be made to expand the combustion chamber or using it as is is fine?

**Bludger** · 07-12-2011 06:52 AM

confusing question,

**mocchi** · 07-12-2011 06:57 AM

that area would be just an extra squish area wouldnt it?
i dont think diameter combustion area on cyl head is exactly the same to cyl bore diameter.

**spetz** · 07-12-2011 07:20 AM

It would alter compression ratio if it was changed however logically it seems that sharp areas around the top of the bore would not be desirable?
I know the usually are not exactly the same as the bore and from looking at a few heads it seems sometimes the combustion area is not even a perfect circle.
I assume this means that the heads are not modified to take this into account?