b16b bored and sleeved or b20 block


VTec Performance

VTec Performance

Specializing in performance honda parts,
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since i'm rebuilding my b16b i have bein chattin a few people and have got a few ideas about boring out and resleeving my engine to 85mm (2.1 litre), would this make much more power over b16b standard ??

or would i be best going b20/b20z ...and what power wud they make ??


just lookin at my potions before doing something and regretting it:)

cheers
 
why do you want to sleeve it?? are you aiming for big power or just displacement??
I wouldnt bother sleeving a b16b/b18 block unless your aiming for more than 500bhp

b20b/z blocks are shite for boost! so if you aiming for big power they go out the window unless you have the money to sleeve them.

whats your ideas???
 
obrienej6 said:
since i'm rebuilding my b16b i have bein chattin a few people and have got a few ideas about boring out and resleeving my engine to 85mm (2.1 litre), would this make much more power over b16b standard ??
Click to expand...

Yes for sure if you increase the engine capacity it will allow you to have more power.

But it's interesting to have some head job too
 
b18c_JORDAN said:
why do you want to sleeve it?? are you aiming for big power or just displacement??
I wouldnt bother sleeving a b16b/b18 block unless your aiming for more than 500bhp

b20b/z blocks are shite for boost! so if you aiming for big power they go out the window unless you have the money to sleeve them.

whats your ideas???
Click to expand...

the plan is as follows man:):

Head:
the head is bein ported and polished
valves cnc machined and reseated, clearances set
new stem seals and all gaskets replaced on entire engine

bottom end:
i'm not going for boosting yet
i was going to just replace bearings and rings and leave it at that, but now i'm thinkin of tyrin to get bit more power from the engine so i am thinkin bout re bore to 85mm and sleeving it..85mm pistons etc etc .


but i'm just wondering what power figures i'd have with the 2.1litre bore on the b16b block??

or wud i be best off using b20 block..
 
obrienej6 said:
since i'm rebuilding my b16b i have bein chattin a few people and have got a few ideas about boring out and resleeving my engine to 85mm (2.1 litre), would this make much more power over b16b standard ??

or would i be best going b20/b20z ...and what power wud they make ??


just lookin at my potions before doing something and regretting it:)

cheers
Click to expand...

Hi,

I've just had my B16b Bottom end bored and sleeved with Darton Mid sleeves to effectivly 2litre fom the b16 Standard block.

First of all, ask yourself, what's your budget. Then what do you want your car to achieve.

Weather you want to sleeve it or have standard B20b/z swap is down to you what you prefere really. Bare in mind that its recommended B20's only rev to 8000-8300Rpm? You loose the fast/high revving that the B16 excel's in soo well, however gain alot of torque.

With sleeving, it's much much safer, you can still revv high + you also have the added torque, My Ek9 made pretty much 250Bhp, considering I only used standard parts - It did very well.

+ On the other hand you have a VERY good foundation for a Big turbo build, I mean.. You could easily get 600bhp if you wanted (would ruin it imo). I look at mine and think what a 'sound investment'.

If you have any more questions, pm me, EK9Turbo on here is one of the experts if you really want to go through with it. :nice:

Regards,

James
 
well jamie:)

really appreciate the reply mate:)

wat i bascially want is approx 250bhp from my "b16b" block..the intention is to have a bit of a sleeper...as you said turboing does not interest me at the moment..i am aiming to build a nice , reliable high powered n/a b16b engine.

i was told if i went 85mm and sleeved the block, i'd have 2.1 litre in or around,and what i'm realy tryin to figure out before i decide what to do is would all the money and work offer me gud bhp in return:)

car will be mapped on neo at the beginiing too
 
Ah, its ok buddy, glad to be of some help. I'd definatly recommend sleeving then mate. You could easily gain 260-265 maybe 270 with a aftermarket top end.

Is Neo an Ecu, I havn't heard of it before. Thinking of ITB's?
 
what rods and pistons are you using in your engine now wazer?? did u change the stroke with longer rods or stick to standard stroke
 
Cp high comp piston, and Carillo B18 con rods. Mate, save up and get a Good ecu, it'll make all difference and in the long run be cheap than getting a new ecu + re-map.

I'm using an AEM series 2 ems:nice:
 
ams wow thats dear **** ha ha:) seems lke you have it done right anyway:) what crank you using?? and have you any gear box mods? and is compression mad high??
 
Well the figures point that way, thats for sure! :), Using a standard B18 crank, so 87.2 stoke / B20 is 89.

We decieded on using standard parts for durability/reliability. c/r is around 12,5 mate.

I originally had bought Gearsets fom Mfactory, all closer ratio + final drive. However They got stolen :(. Now running S80 yearbox mate.
 
jesus thats mad compressin, no wonder you have ams managing that kinda comp...

if i left the standard crank and b16b stroke with the 85mm bore??

or

would b20 crank and forged b20 rods with 85mm je pistons be worth it?
 
the problem is i just cant decide on a set up to be honest:) and my head is wrecked ha ha
 
obrienej6 said:
jesus thats mad compressin, no wonder you have ams managing that kinda comp...

if i left the standard crank and b16b stroke with the 85mm bore??

or

would b20 crank and forged b20 rods with 85mm je pistons be worth it?
Click to expand...


With B16b stroke, I'm not sure if you'll be pushing the 2.1l your aiming for.
standard B18 crank from honda is IIRC around £950.

You can't fit b20 crank/rods in a b16/18 block:nice:
 
oh right cheers lad:)

i get ya now, if i kept b16b stroke could be only hitiing 1.9l or so:)

how much did your boring and sleevving cost you?
 
Your best just trying to get hold of a B18 crank mate, Stroking is probably one of the best way to gained a few exta Hp.


*Get' out invoices*, Hmm, sleeves were £450, fitment £400, am sure I had it skimmed aswell.
 
but if i go turbo in future b20block will require more work, but if i already have my b16b sleeved etc it be half the battle over:)


cheers for the prices wazer...sorry if ya had to go checkin it up:):)

realyy lads i'm caught between setups,sum people are reccomened a high c/r standard build to get bout 200bhp and save money on boring etc
 
do darton mid sleeves come 85mm or do you buy them andand bore them to 85mm??

and whats the difference in using darton mid towards darton dry sleeve??
 
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