Is 300whp achivable from a B16A/B20B.

For the experience people who know this setup, please advise what needs to be done to get these figure eg: C/R Pistons, Headers, bore size ect

Any help will be great.

 

<FONT COLOR="green">The magic answer!</FONT>
Big bore, very long stroke (95mm or bigger), very good head, huge cams, lots of tuning, large plenum intake manifold with short runners. You might get close.

 

like b19coupe said alot of work to make it get close

 

300hp is a pretty hard goal. ive read a few k series build ups that had only like 270-280

good luck

 

yea if youre talking NA 300hp...very good luck to yea because ive never seen it or even read of a b20/vtec setup making that much...the skunk2 rsx that runs 9's is maxed out at 300hp and thats a k series

 

didnt chris whitfield make like 300+ hp on his b series. was like 17:1 comp or something like that, full out race motor.. someone correct me if im wrong..

 

What are you going to be using this for?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boots &raquo;</TD></TR><TR><TD CLASS="quote">the skunk2 rsx that runs 9's is maxed out at 300hp and thats a k series</TD></TR></TABLE>

you heard wrong.

Todd, im amazed at your post, you never post sarcastic "search" references!

 

My Set up will be this;

84.5MM 13.5:1 C/R
I Beam Ultralight rods
Inconnel valves
heavy duty valve springs
Blox intake manifold re worked
550cc injectors
rage big tube exhaust manifold
block to be posted
head to have alot of PNP 18 hours work
hondata
upgraded ignition setup
ITB
110 OCTANCE FUEL , street legal in Australia
and heaps of dyno tuning
what hp do you think this will get me

and then maybe 50hp shot of NOS

 

you'll probably need more than 18 hours in the cylinder head to get to 300whp

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mugen1 &raquo;</TD></TR><TR><TD CLASS="quote">

head to have alot of PNP 18 hours work

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

I could spend 18 hours on a head and lose power.

Quality &gt; quantity

 

You will be lucky to hit 250 with that setup.

For one, get a better header.

Secondly, unless you are planning on running Jenvey's, ditch the ITB idea, you will make more power, especially peak, with a ported JG VictorX.

I would suggest running BC5 cams, we have built a 270whp (dynojet) 86x89 using BC5's along with 14.5cr.

The easiest way to hit 300 would be with a 86x95, 14-14.5cr, 110octane, BC5's, good headwork, and a good header.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">

The easiest way to hit 300 </TD></TR></TABLE>

double negative / oxymoron

 

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

double negative / oxymoron </TD></TR></TABLE>

Aint that the truth.

We've never tried to build a B-series specifically for the reason of making 300whp, we've come close on methanol (high 280's)...

I never have found the purpose of building an engine for a target HP.

BTW, when are you going to update your build thread?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">you heard wrong.

Todd, im amazed at your post, you never post sarcastic "search" references!</TD></TR></TABLE>

http://www.skunk2.com/ssFeature_1005.pdf

page 4 i believe it says its sitting at 315....i guess i heard wrong huh

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boots &raquo;</TD></TR><TR><TD CLASS="quote">the skunk2 rsx that runs 9's is maxed out at 300hp and thats a k series</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boots &raquo;</TD></TR><TR><TD CLASS="quote">page 4 i believe it says its sitting at 315....i guess i heard wrong huh </TD></TR></TABLE>
That is not the highest number from a K-series on a Dynojet.
Your statements are also contradictory.

 

ive seen dynos of K's hittin 349ish.... thats just silly...

 

i was 15 off...but we are still trying to compare getting 300 hp out of a b series and getting 300 out of a k...its a lot easier to get it out of a k series and it still takes a lot of time money and effort to do that

 

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

http://www.skunk2.com/ssFeature_1005.pdf

page 4 i believe it says its sitting at 315....i guess i heard wrong huh </TD></TR></TABLE>

Yeah, you did hear wrong. 315 &gt; 300, which you said skunk2's K was "maxed out" at. And who are you kidding thinking skunk2 published their actual drag race engine HP in their catalog. Get real.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boots &raquo;</TD></TR><TR><TD CLASS="quote">i was 15 off...but we are still trying to compare getting 300 hp out of a b series and getting 300 out of a k...its a lot easier to get it out of a k series and it still takes a lot of time money and effort to do that</TD></TR></TABLE>

i know of k's with stock bore making near 270, so maxed out at 300 is silly to say.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92 EH2 &raquo;</TD></TR><TR><TD CLASS="quote">i know of k's with stock bore making near 270, so maxed out at 300 is silly to say.</TD></TR></TABLE>

for expletive's sake my bad for saying maxed out...the article said they had a tough time getting out of that motor what they got out of it...im just relaying something i read i didnt say that **** was written in stone calm down kids

 

Im completely calm.

However, you posted something with the insinuation that it was fact. It wasnt fact though, it was far from it. Just tired of seeing mis-information spewed on this forum.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boots &raquo;</TD></TR><TR><TD CLASS="quote">for expletive's sake my bad for saying maxed out...the article said they had a tough time getting out of that motor what they got out of it...im just relaying something i read i didnt say that **** was written in stone calm down kids</TD></TR></TABLE>

seems like your the one that needs to calm down. <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">Im completely calm.

However, you posted something with the insinuation that it was fact. It wasnt fact though, it was far from it. Just tired of seeing mis-information spewed on this forum.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">Im completely calm.

However, you posted something with the insinuation that it was fact. It wasnt fact though, it was far from it. Just tired of seeing mis-information spewed on this forum.</TD></TR></TABLE>

nope...just saying what i read

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boots &raquo;</TD></TR><TR><TD CLASS="quote">nope...just saying what i read</TD></TR></TABLE>
exactly. mis-information.