hey johnny23toronto, does this friend of yours still have the engine? I would be interested if he still has it...

There is/was a guy last summer that laid down a 13.2 (full trim, street tires) in a bubble back with a b20.

The b20 had some head work and web regrinds, gsr trans and some minor tuning (via chip)

Therefore, he probably spent less than $4000 on his motor and has one of the fastest street cars out there... not bad if you ask me.


ps - yes you read right...13.2!!

Damn I want one now, gonna work on it all winter, maybe find a vtec head for it...He probably did 13.2 without nitrous right? I already got spray for it, set it up for turbo and it will be nice and scary fast :thumbup: I bet cams and other components will be hard to find for it...

parts would be no different then any b series i would think....cause if your putting on vtec then your using a b16a or b18c head... which there is tons of stuff for... and from what i know the stroke is the same on b20 and b18's 89mm i think.... so you can use a beef'd crank from an integra... the pistons i dont think any honda use... but i'm no einstien on this one

:richslap:

the b20 with a gsr tranny (possibly lsd) i/h/e woudl kick some ass...add soem cams and it woudl kcik some serious ass...plus around town the torque is great...when all the b16 and gsr boys are down shiftign and revign past 8200 rpm's you let the torque pull you reving to 7000

B20Z vs B20B
 

B20Z vs B20B

Is the B20B worthless in comparision to a B20Z?

Guys, isn't moving from a B18B to a B20B or even B20Z, with significantly lower Hp a sin?

I need convincing that Torque is THAT important to be fast. Is Hp really overated?

Really, is there a simple formula, like Hp = Torque or something? For instance, would you sacrifice 20 Hp for 25 lbs of added Torque...

Maybe to makes things simple, with my stock 5th gen h/b, what would do better 1/4 : An unmodded B20B (not B20Z) vs unmodded B18B.

Thanks for your continued guidance!

Re: B20Z vs B20B
 

FYI B20Z for all intensive purposes a USDM motor. 99-00

All JDM B20s are B20Bs and are available in different incarnations eg. gen 1 through 4

The first thing that must be understood is not only what the motor is, but what vehicle it came from.

B18Bs generally come from Integras, which are designed to be pretty sporty. They have pretty decent breathing as is: Intakes, exhaust manifolds, catalitics... etc.. although you can upgrade exhaust and intake, its not going to make as much difference as if you were to upgrade breathing on a B20.

B20s are found in very civillian vehicles, the Honda CRV being the most common. The CRV has vehicles have pretty restrictive breathing systems: Intakes, exhaust manifolds, catalitics... etc.
Have you ever seen the exhaust manifold on a CRV? looks like it was made out of stamped tin. As well the fly wheels found are pretty heavy making the 17lb b16a flywheel look super light.

So naturally you will see greater gains from you bolt ons on the B20 vs the b18.

Horse Power and Torque are directly related.

I don't remember the equation exactly but for general purposes it can be thought of as:

HORSEPOWER = TORQUE X ENGINE SPEED

thats why so many VTEC engines produce huge amounts of horsepower and pathetic amounts of torque.

You have to rev the **** out of your motor before you see any power.

So yes i would sacrifice 20 hp for 25 lbs/ft depending on how it affected my power curve, you're guaranteed to see increased throttle response.

for honda motors, nothing can touch the B20 down low.

Assuming they both have the same breathing and trannies.

a B20, no doubt.

Theres no replacement for displacement

i think its a toss up between the b20b and b18b... the b20b would have more potential down the road cause of its displacement i think

JSK's post = :thumbup:

Ppl need to forget the VTEC B20s for 2 seconds and look in their wallet, then they'll realize they ought to be happy to have a B20 of any sort. CRVTEC = $$$

Unpossible :p The B18B will always have better aftermarket support because modding it is most common, plus there is quite a bit of knowledge about them. B20s are not that well known cuz they came in an SUV primarily. Plus, better geometry of the B18B... if going hardcore turbo and stuff, then B18B is best, but if just want IHE mods, then B20 is prime realty.

b20 is sounding very tempting... :yummy:

but why can't you take a b20... slap on a b18 head... then you get two liters plus aftermarket support

...good point, cant it be done :shrugs: ..

but the question is why ...??? I believe with B series engines any B series non vtec cam will fit any B series non vtec head and same for vtec heads....

you can do everything you need to with the B20B... while yes there is a larger amount of people building up b18's I challenge you to name 1 thing you can do with the b18 that is impossible to do with the b20 .....

its nothing about being impossible.... its the fact that say you install a cam... it would do more with 2 liters and 1.8...


although about the aftermarket support for the b20... i also thought that all b series cams were interchangable... pending your switching from a vtec motor to a vtec motor and vice versa

news flash a b20 is a big bore b18b....interchangable...you will have to use the b18b intake mani alway to make it fit...or apt for a skunk2....:rolleyes:

depends on the B20, there are some model that you can retain stock B20 Intake manifold.

but in most cases, the B20 intake manifold has to be swapped for an LS.

:nods:

In fact the B20Z uses the same cam as the B18B

:working:

which b18?