Thread: B16A head on B18C block also B20B block with B18C/B16A head

1)Right, This question has been asked a few times before so I have searched but not found the answers I want.
By fitting the B16A head on to the B18C block you decrease compression right? So what does this mean, I is a jack ass.
By doing the swap what sort of power increase could be expected?Anyone got any dyno graphs or something?
When doing the swap is it just as simple as replacing the new head with the old or are there other things that need to be done?

2)Secondly, I saw in the latest NZPC there is that DB8-R Integra with the B20B block and the B16A head. Is this a cost efective way of getting some N/A power? They didnt quote any performance figures so I couldnt tell, but there is no replacement for diplacement right so having the extra 200cc couldnt be too bad. How much can one get a B20B block for these days? It is quite a bit isnt it? Would this work as well with the B18C head? What difference would it make?

Any help is appreciated, sorry there is so much to answer.

Wouldnt mind the answer to a coupple of these questions myself

http://www.honda-tech.com is the place to answer all your questions

my friend has a B20b VTEC with low compression and it fully blows the crap out of my B18c civic and now he has TURBO his B20b and i have no hope now

for me B20b VTEC gets the thumbs up, thats why i have a B20b in my garage now :wink:

People at honda-tech.com are making 180-190whp with this conversion.

I expected more like 220-250whp.

I'm guessing if people added intake/headders/exhaust, the power figure will increase?

Also is there N/A potential for the hybrid B20B/Vtec conversion?
Or is the max power output restricted to the 180-190whp range?

This is a very interesting subject by the way!!

Found this site:
http://www.c-speedracing.com/howto/b20vtec/b20vtec.php

That site is very good, thanks HUSSLAA.

Keep it coming people.

I also just found www.b20vtec.com <-very interesting.

Another bit.. from c-speed!
http://www.c-speedracing.com/ubbthre...w=&sb=&o=&vc=1

check out http://www.kelford.co.nz/import.html

parts for a....
HYBRID CRV2.0L BLOCK WITH B16A HEAD


Obviously a lot of people are up to this mod!

Go the mightly b20.....

Jw

Got the price (est.) list from Honda-Tech.com is as follows:

B20 Medium Set-Up:
B20 Block: $1800?? $900 US dollars but B20's mite be cheaper in NZ?
JE 11.5 or 12/5 Pistons - $970
Eagle Rods - $700

B16A/B18c Head:
B16A/B18c Head - $unknown
Skunk Stage 2 Cams - $1300
Skunk Cam Gears - $400
Type R Valvetrain - $700

Transmission:
B16A/B18C will do. Apprently B18C is better!

ECU: - $1100 - $1300??
P28 rechipped with a B16A roggy with a higher rev limit.
VAFC
VAFC provides very good tunability and since it is a stock program it is much less prone to detonation for timing reasons.

Fuel Setup - $1200
RC 310cc Injectors
Holley 255 pump
Adjustable Fuel Pressure Regulator with Gauge

Total Cost (EST.) - $8,350. Price excludes transmission and B16A/B18C head!! 8O

Hope this helps. Link to the actual post is:
http://www.honda-tech.com/zerothread?id=174153

I'm sure us being NZers we can source simillar parts second hand or parts from another car, makin the build cheaper.

Read an article on NZPerformance Car Magazine with a guy with an SIR-G? with a B20B in it... if he's on here i'd like to hear his thoughts on the build!

Rob

Originally Posted by HUSSLAA

Total Cost (EST.) - $8,350. Price excludes transmission and B16A/B18C head!! 8O

You could get a very very nice turbo set up for that sort of moola and probably twice the power and more...

Yeah that's the thing thats puttin me off...

I really wanna get ahold of someone in NZ that's done this aye..

The main problem is that the B20b block is so freakin weak... might as well go for the H22A conversion!! Probably make the same amount of power STOCK!

Price list from Kelford:


New Zealand’s Number 1 choice for hardcore Import Drag racing engine mods


166 Wordsworth Street
Christchurch NZ
Ph 03 366 4514
Fax 03 366 4515


Honda B16A / B18C Performance upgrade products

Individual prices:

New racing camshafts (pair) 1250

Honda Type R valve springs 385

High RPM valve spring kit (Toda) 799

Ferrea Titanium retainer, valve spring & locator kit 1050

ZEX Titanium retainer, valve spring kit & locator kit 899

Ferrea Racing oversize stainless valves 928

Adjustable cam gears (exchange pair) 400

Cylinder head porting and flow bench work 600

Valve seats cut to our own designs,
seat heights and Valve margins set,
valve back heights set 399

Surface grinding to correct finish
to run steel laminate gasket 50

Cleaning and assembly 180

Package Deal 1,
New race cams, adjustable gears, porting
and flow bench work, valve and seat work,
surface grind, cleaning and assembly
with new stem seals 2800

Package Deal 2,
New race cams, High RPM spring pack,
oversize stainless valves, and adjustable
cam gears, porting and flow bench work,
valve and seat work, surface grind,
cleaning and assembly with new stem seals 4300

NEW PRODUCT
JE Pistons Pins Rings,
Locks & Eagle H Beam Conrods kit 1800

can this conversion work with a b20a engine?

b20b is popular in us with b16/b18 head, as well as the ls swap , using b18b bottom end and b16a top end, but known more as the poor mans b18c 8) go for it if your up for the challenge as evil elmo said they produce some good numbers , and in my opinion suited more for turbo applications..

yea b16a head on b18c block is common and good upgrade bumpin compression up , but b18b block with b16a head = rangi mans b18c , althought you do need do some mods to make it work, it does actually work :wink:

Originally Posted by Grrreg

I'm pritty sure that BLAZED RACER did the B16A head on the B18C (read it on those flash boards at the Auto Saloon :wink: )

haha.!! no not me.. 8)

james, i suggest you PM or ask cement.!

Originally Posted by PH4T SI

can this conversion work with a b20a engine?

in short, yes you can bolt the b16 vtec head to the b20a block.
same sort of fiddling required.

Jw

Originally Posted by Cement

I always thought the B20A was pretty much unlike the rest of the B series range and that its not practical or possible to use the VTEC head on it ? Could be wrong but yea ... would research it hard before buying bits.

www.ludespeed.com

when he was doing alot of the bits for these he made one or two...
Pretty much the same sort of conversion really.

Jw

its been done so i wouldnt think you are right about it being impossible :wink: