B16 / B20 Bottom End + Turbo - EM1?????

[BIGTYM]

Hay all I'm sure If i searched hard id find my answer but I just wanted a few quick bits of info / opinions..

I have an internally stock B16A Turbo in my EM1 at the moments. Next year I will be stared a major build-up on my car and I really like the idea of having a 2.0lt Turbo Civic.

What I'd like to do is use a B20 Bottem end mated to my current B16 head with VTEC and keep my current turbo set-up (read my build)..

I am a bit of noob with all things B20 swap..

What I'd like to know is what parts will I require for this conversion and just general opinions regarding this sort of build.

Cheers

[GSi_PSi]

Hmm stock sleeves of B20 + turbo dont really mix well.

[Limbo]

better off with a built b18.
The b20 has a weaker bottom, not really suited to boost

[MrKaji]

Stick with the B16a since it has a stock oil cooler, thick sleeves and most important of all oil squirters which help cool down the piston. Only do a b20/b18 if your motor blows IMO. Infact i think a b16a turbo is perfect setup

[GSi_PSi]

you dont want too much torque anyway, too much wheel spin

[BIGTYM]

So if I want to increase my displacement. What are my options...B18 bottom end? Toda Stroker kit...?

[GSi_PSi]

(B18A,B18B = would need to convert to vtec and make bit internally stronger), B18C bottom ends. I wouldnt really put a stroker kit , cause of the cost plus the worse rod/stroke ratio

[MrKaji]

(B18A,B18B = would need to convert to vtec and make bit internally stronger), B18C bottom ends. I wouldnt really put a stroker kit , cause of the cost plus the worse rod/stroke ratio

why would u make it internally stronger? its fine plus with B16a head it yields a lower compression perfect for boost applications


and seriously EM1 dude.. why dont u just up the boost?

[ALLMTR996]

Have any of you giving advice built a B20Vtec turbo setup or just read crap on the net hmm.
http://www.honda-tech.com/showthread.php?t=2687164
http://www.honda-tech.com/showthread.php?t=2695439

[EGB18CT]

B20 is a nice setup on the cheap otherwise go the b18 bottom end with sleeves and overbore to give a 1.9L approx capacity and cp's in around 9.5:1cr.

or b20 with sleeves to make it more durable.

[Chr1s]

B20vtec with acceptable boost pressures will be fine :wave:

[IEVAQ8]

no need to increase displacement, no need to change bottom end..............

if ur chasing more power, its as simple as putting the right parts together for ur b16a and having it tuned to hold.................

my opinion, for anything more than 10psi, sleeves is a must............

so it might work out cheaper to buy a sleeved block from the US and have it machined and assembled here with good bits ................just my 2 cents

[OMG.JAI xD]

Youre going to open the engine up.

Mate all i can say. Is darton sleeves.

All the B blocks are really the same.
You can put the same bore size as a b20 in the b16 using dart sleeves. And those sleeves are ment to handle power.
Only problem youll probably encounter is the difference in stroke travel. You might need to change the crank and rods to suit. Its all about reading the specs.
Youll have your 2L displacement with your b16 head. No vtec conversion kits or anything, since the block is already made for vtec.

There are many possibilities with building an engine. b20 block with a vtec head is cheaper as there are no remove and re fit labour involved with the internals of the engine. Its just inspect, measure fit. Unless of course you start changing pistons and rods.

Dont go with a stroker kit, thatll make your stroke length longer. You probably can still rev to whatever the stock red line is. But you surely wont be able to reach 9-10K rpms most B series are capable of.

Do RESEARCH and talk to an engine builder that has specialised in honda engines. Ie. TODA.
Whether you choose to get them to build the engine or not, they will share their knowledge and tell you where the power lies in your engine.

First in your shopping cart should and always be the engine. Then you buy a turbo to suit your engine.
Choosing a turbo first and building an engine is pretty much going backwards.

[GSi_PSi]

theres that dude from nz made like 300kw from his b16

[GSi_PSi]

arent B16a deck heights small so stroking it would worsen the rod/strokee
and if u sleeve it for 84mm you still have the 77mm crank so u wont have the 2.0 Litre displacement.....
IMO if your going to do a swap id slap on a B18B bottom end, cheap and more power

[Lukezen27]

Already used to the power BIGTYM :p:p Doesn't take long haha

There's lot's options man but any mods will require a bigger turbo than the GReddy one your currently using.

What power and torque are you making these days?

[GSi_PSi]

I agree with luke upgrade the turbo, and up the boost ! lol
yehhh wat power are you making currently?

[fatboyz39]

Sugar juice it!

[ALLMTR996]

Sugar juice it!

E85 is made from corn you gumbie

[fatboyz39]

e85 is made from corn you gumbie

or corn!

[GSi_PSi]

do yous get ur e85 from united petrol station at rockdale?

[MikeyG]

why dont you actually get proper turbo kit.. your using greddy it aint that good.. what i suggest is keep the pipping and intercooler get bigger injectors, bigger turbo and a better ramhorn.. up the boost to about 15psi and you should be fine

[BIGTYM]

Lots of great advise to consider. Thanks to all. Cant wait to start the build this year...

[BIGTYM]

why dont you actually get proper turbo kit.. your using greddy it aint that good.. what i suggest is keep the pipping and intercooler get bigger injectors, bigger turbo and a better ramhorn.. up the boost to about 15psi and you should be fine

any suggestions on where to source a new turbo kit from in particular the ramhorb manifold?

Would 15psi really be suitable for my internally standard engine?

[Lukezen27]

any suggestions on where to source a new turbo kit from in particular the ramhorb manifold?

Would 15psi really be suitable for my internally standard engine?

No 15psi on stock B16A's won't last

Don't listen to MikeyG has clueless

HKS Log manifolds like mine can handle 15+ psi

ONLY the HKS no other brands is tune length for crank rotation

Just a good turbo nothing else would net you a lot more power

[Limbo]

stock motor will blow fairly quickly on 15PSI, you'll blow a rod or piston.

The only way to run 15PSI would be to drop compression,

[Riced_Civic]

any suggestions on where to source a new turbo kit from in particular the ramhorb manifold?

Would 15psi really be suitable for my internally standard engine?

email or go down to AKmotorworks in Ringwood, they are the dealers in Peakboost kits, they can get u a Ram horn in.

[Limo]

any suggestions on where to source a new turbo kit from in particular the ramhorb manifold?

Would 15psi really be suitable for my internally standard engine?

what figures are you making now?

since the AUS dollar is high get a full-race manifold, bigger turbo for more power.. i wouldnt go more than 10psi on stock motor.. should be plenty for daily boosting. also you should only need to modify cooler piping and down pipe to suit the turbo as it mite be sitting in a slightly diff position.

ill take you for a spin in my crx and you can feel the difference between the setups

[IEVAQ8]

what figures are you making now?

since the AUS dollar is high get a full-race manifold, bigger turbo for more power.. i wouldnt go more than 10psi on stock motor.. should be plenty for daily boosting. also you should only need to modify cooler piping and down pipe to suit the turbo as it mite be sitting in a slightly diff position.

ill take you for a spin in my crx and you can feel the difference between the setups

hey is this u jeff??? black crx that revzone did???

if so how is the beast going???

any plans for new mods??

cheers
tom

[BIGTYM]

what figures are you making now?

Last dyno run made 130kw @ 7psi

[Limo]

hey is this u jeff??? black crx that revzone did???

if so how is the beast going???

any plans for new mods??

cheers
tom

yeh man..still going strong.. just rebuild my gbox and got a new clucth

no plans for future mods atm.. just tidy up the engine bay/wire tuck etc and clean up the exterior.. thats about it

[Limo]

Last dyno run made 130kw @ 7psi

well going by the other guys setups.. they seem to be running similar setups with different turbos n getting ~160-170kws. im using a slightly bigger turbo with full race manifold and pulling ~200kws @10psi, ive seen other b16 turbo's who get similar results with the peakboost manifolds.

so i guess its really upto you how much you wana spend or how far you want to push your car and front that you rougly know what you need to change/upgrade to achieve it.

[Sexc86]

So if I want to increase my displacement. What are my options...B18 bottom end? Toda Stroker kit...?


Ever herd of the saying. The replacement for displacement is forced induction. Build your block / head + bigger turbo and more boost = happy driver.

[MikeyG]

15psi can last if you tune it right with quality parts

[Sexc86]

on quality internal parts yes... i wouldnt be pumping 15psi into any honda standard motor