My friend has a spare B18C crank+rods that he is trying to sell me.

I currently have a B16B and my question is:

1)Is it just drop in or will i have to modify the block?

2)If i re-use my B16B pistons,will the compression be too high? (I already have a Mugen thin gasket)

3)All i have for tuning is just a VAFC-II and no $$$ left to get a standalone,is it sufficient enough to tune?

4)Is it worth the hassle to mod? How does it compare to change the entire block?

 

sorry 2 say but u must have to bring ur existing b16 block 2 a machine shop and have the lower piston liners shaved a little coz the b18 rods would hit the liners...it would be a good investment if you drop in a new set of pistons so you dont have to upgrade ur block. it will save you the downtime and labor and parts cost...

 

What new pistons are you talking about? CTR or ITR?

 

A B16B(CTR) block is the same block as a B18B or C. No modifications needed. If I remember correctly CTR pistons run around 12 points or higher static compression in a B18B or C block.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jgarage &raquo;</TD></TR><TR><TD CLASS="quote"> sorry 2 say but u must have to bring ur existing b16 block 2 a machine shop and have the lower piston liners shaved a little coz the b18 rods would hit the liners...it would be a good investment if you drop in a new set of pistons so you dont have to upgrade ur block. it will save you the downtime and labor and parts cost... </TD></TR></TABLE> a b16b is a p72 cast

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITRbroham &raquo;</TD></TR><TR><TD CLASS="quote">A B16B(CTR) block is the same block as a B18B or C. No modifications needed. If I remember correctly CTR pistons run around 12 points or higher static compression in a B18B or C block. </TD></TR></TABLE>

That's new to me. So the B16B has a P72 stamp on the block? I didn't know this. I remembered the B16A's having a shorter deck height.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by len &raquo;</TD></TR><TR><TD CLASS="quote">

That's new to me. So the B16B has a P72 stamp on the block? I didn't know this. I remembered the B16A's having a shorter deck height.</TD></TR></TABLE>

I've seen a B16B engine but never close enough to see the stamp if any. All I know is that the B16B block has the same deck height as a B18B and C. The B16A block has a shorter deck height than the B16B even though it's the same displacement.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITRbroham &raquo;</TD></TR><TR><TD CLASS="quote">I've seen a B16B engine but never close enough to see the stamp if any. All I know is that the B16B block has the same deck height as a B18B and C. The B16A block has a shorter deck height than the B16B even though it's the same displacement.</TD></TR></TABLE>

Anyone got one laying around so we can confirm?

 

So can we confirm there is no modification needed?
What part of the block you need a pic of? Maybe i can snap a pic tommorrow.

 

I don't have one laying around but I can confirm that I have seen P72 on a friend's B16B.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bradstard &raquo;</TD></TR><TR><TD CLASS="quote">I don't have one laying around but I can confirm that I have seen P72 on a friend's B16B. </TD></TR></TABLE>

If we can confirm with an actual picture then that would be great Brad. Also, mods may want to change title of the thread to make it easier to search for future reference.

See you this weekend Brad.

 

Your answers are here.

https://honda-tech.com/zerothread?id=717928

With that high of compression, you might need some larger injectors down the road.

sell the VAFC and go with crome. But you haven't exactly told us what you want to do with the car....track? drag? street only? autoX? show Kaa?

But to confirm, crank and rods will fit just fine.... it's a popular upgrade here in Asia, because on the outside, it says B16B but it's really an 18C.... in some regions, due to addded insurance cost, this can be evaded, but also here in HK, it is illegal to modify the internals of the engine.

 

I am doing this instead of changing the block is because i dont have to have the car inspected and change details on my insurance and car registration.

This is will only be a street driven car and wont see track time.

Cant get Crome here as i live in Malaysia. Even Hondata just made it here and no one has the software and know how to tune it.

Question:
-Do i need to worry about the compression being too high?
-What is the theory behind needing larger injectors?
-Right now i have a Mugen gasket,can i bump the compression down a bit by installing in a OEM gasket?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Takashi1978 &raquo;</TD></TR><TR><TD CLASS="quote">
This is will only be a street driven car and wont see track time.

Cant get Crome here as i live in Malaysia. Even Hondata just made it here and no one has the software and know how to tune it.

Question:
-Do i need to worry about the compression being too high?
-What is the theory behind needing larger injectors?
-Right now i have a Mugen gasket,can i bump the compression down a bit by installing in a OEM gasket?</TD></TR></TABLE>

crome is free and you can download the software and be your own tuner. (experience is not necessary, but helpful) You will need a burner and a wideband O2 is invaluable IMO.

- If you don't have at least 94octane, it could be an issue with compression and inability to pull timing aside from at the distributor
- As compression increases, and you want more power, the engine will naturally demand more fuel, having larger injectors will ensure the stock ones don't peak their duty cycle. (a little oversimplified)
- The compression will drop, check the link I posted.

 

All the petrol in Malaysia is rated at 97octane.
I have a 99-spec CTR ecu so i dun think it can be chipped.

I have read the link you posted but most is asking about droping CTR pistons in B18C motors.

What would my compression be like and below are my specs

B16B head & Block
CTR piston
B18C crank & conrod
Mugen or OEM gasket

Thanks a lot for the help so far!

 

You haven't read anything the previous posters have put on this thread.

The B16B block IS the SAME as a B18C block

So your answer is still in that thread.

To chip for crome, you need to buy yourself a harness adapter and run a OBD1 ecu.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RagingAngel &raquo;</TD></TR><TR><TD CLASS="quote">.... it's a popular upgrade here in Asia, because on the outside, it says B16B but it's really an 18C.... in some regions, due to addded insurance cost, this can be evaded, but also here in HK, it is illegal to modify the internals of the engine.

</TD></TR></TABLE>

so, can you or someone else hook me up with a set of B16B crank and rods (probly only need the rods) or where to get some? thanks