ive been leaning towards goin b20 turbo instead of stickin to the b18b turbo set-up i already have. what are some disadvantages and advantages to going b20 turbo? im only goin to run between 7-9psi.

 

Straight b20 or b20 vtec? ]

I say KISS, and stay wiht the ls, its been proven to make power, hold boost well, and there cheap, besides if your cars running good now, i wouldnt' mess with it. Just my .02 cents

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quikB18B &raquo;</TD></TR><TR><TD CLASS="quote">Straight b20 or b20 vtec? ]

I say KISS, and stay wiht the ls, its been proven to make power, hold boost well, and there cheap, besides if your cars running good now, i wouldnt' mess with it. Just my .02 cents </TD></TR></TABLE>

i was thinkin straight b20. good point, though.

 

main advantage is alot more torque. i have a b20 turbo ek9 it is really torquey. that is what they are known for. 2 buddys one ls turbo 300 hp 245 tq other buddy with b20 turbo 300 hp 285 tq . i am not there yet with 210 hp 185 tq i am running 9 psi. my buddy with 300 is stock b20. disadvantage 12 psi tops no more

 

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

i was thinkin straight b20. good point, though. </TD></TR></TABLE>

With that being said just keep the ls

 

I keep b18, b20 has weak sleeves

 

Its all about tunning. If you dont tune the LS well and tune the B20 good (IE) standalone, I would bet $ you'll blow the LS before you blow the B20. Thats just my 2 cents. You might want to conatct Newman on his B20 setup. Stock internals FMU, ran high 11s I believe. Straight B20.

Blaze

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quikB18B &raquo;</TD></TR><TR><TD CLASS="quote">

With that being said just keep the ls </TD></TR></TABLE>

I agree.

 

b20 is just about being able to say you have 2 litres. The advantage of .2l of displacement isnt worth the extra risk of cracking a sleeve. If you are all about the "ya mang i got a 2 litre in this thang" and dont care about the safety, then go for it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94goldjungsr &raquo;</TD></TR><TR><TD CLASS="quote">b20 is just about being able to say you have 2 litres. The advantage of .2l of displacement isnt worth the extra risk of cracking a sleeve. If you are all about the "ya mang i got a 2 litre in this thang" and dont care about the safety, then go for it </TD></TR></TABLE>

So by that token running higher compression pistons in an N/A car is stupid too right? Because they will reduce the reliability of your motor.

Let me guess, you owned an LS turbo right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94goldjungsr &raquo;</TD></TR><TR><TD CLASS="quote">b20 is just about being able to say you have 2 litres. The advantage of .2l of displacement isnt worth the extra risk of cracking a sleeve. If you are all about the "ya mang i got a 2 litre in this thang" and dont care about the safety, then go for it </TD></TR></TABLE>

Does anyone have any definite information as to the thickness of the stock sleeves on the B20B and B18B, I've only heard people say that the B20B sleeves are slightly thinner... Nobody has mentioned anything definite yet, so I'll just assume its another HT bandwagon The only real downsides that I see would be the increased mass of a larger piston and also the bigger bore could contribute to more sideloading, thus making it have more internal stress than a B18B. If the B20B head is just a normal B18B head then the 81mm edge could create a hotspot for detonation, anyone know whether the combustion area on the B20B is for an 81mm or an 84mm bore? Seems that B20B prices are less than B18Bs at least at a few places, why is that?

Bump for more information...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tomakit &raquo;</TD></TR><TR><TD CLASS="quote">b20 has thinner walls than all other b-series engines. 6mm seperates each cyl, where all other b series' have 9mm seperation.

the b20 casting technique is also different from all other b-series castings.
this accounts for its weakness in comparison to the other b engines.

This info was taken from Automotive Engineering, 1996, which describes what honda had to do to get 2.0 liters from its b engines for the crv.

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

 

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

So by that token running higher compression pistons in an N/A car is stupid too right? Because they will reduce the reliability of your motor.

Let me guess, you owned an LS turbo right? </TD></TR></TABLE>

what kind of crack are you on

 

"main advantage is alot more torque. i have a b20 turbo ek9 it is really torquey. that is what they are known for. 2 buddys one ls turbo 300 hp 245 tq other buddy with b20 turbo 300 hp 285 tq . i am not there yet with 210 hp 185 tq i am running 9 psi. my buddy with 300 is stock b20. disadvantage 12 psi tops no more"
300 sounds pretty nice. whats his quarter mile?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94goldjungsr &raquo;</TD></TR><TR><TD CLASS="quote">what kind of crack are you on</TD></TR></TABLE>

None.

I'm just not dumb enough to say a 1.8l turbo is better then a 2.0 liter turbo.

-Rob-

 

b18b bored to 2.0L

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -iLLuZioN-B18C1 &raquo;</TD></TR><TR><TD CLASS="quote">b18b bored to 2.0L</TD></TR></TABLE>

hehe, if that is the case, then you could just sleeve a B20B and they are comparable again

 

this is one of those endless debates. i had a b20b in my 95teg. bonestock motor, fmu, + 9psi drag kit=12.43@112.67. after a couple months of no tuning and endless beating i cracked a few sleeves. no im back on the ls and it still pulls hard, 12.69@110, but i miss the b20. it spooled alot faster with b20 and generally had a more usable powerband on the street. obviously tuning will keep your motor alive, so do it either way

 

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

None.

I'm just not dumb enough to say a 1.8l turbo is better then a 2.0 liter turbo.

-Rob-</TD></TR></TABLE>

asuming both are just as safe that is a true statement. Unfortunately, they arent.

So I am dumb enough to say that stock b18b &gt; stock b20 for turbo. Safefy of sleeve spacing &gt; small extra power imho.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94goldjungsr &raquo;</TD></TR><TR><TD CLASS="quote">

asuming both are just as safe that is a true statement. Unfortunately, they arent.

So I am dumb enough to say that stock b18b &gt; stock b20 for turbo. Safefy of sleeve spacing &gt; small extra power imho.</TD></TR></TABLE>

After doing some research, I've come to the same conclusion... I'm gonna pick up another stock block B18B for my setup

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quickda6 &raquo;</TD></TR><TR><TD CLASS="quote">this is one of those endless debates. i had a b20b in my 95teg. bonestock motor, fmu, + 9psi drag kit=12.43@112.67. after a couple months of no tuning and endless beating i cracked a few sleeves. no im back on the ls and it still pulls hard, 12.69@110, but i miss the b20. it spooled alot faster with b20 and generally had a more usable powerband on the street. obviously tuning will keep your motor alive, so do it either way </TD></TR></TABLE>

ya, hes quick even on 3 1/2 cylinders......... lol

 

LS's can make just about as much torque as b20s. check out my sig, and check out xrated's (tyler) wheel torque!! can you say 395whp and 375wtq!!

it's all in the setup and tuning.

 

i think ill stick to a b18b.