built gsr v built b20vtec

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Jun 7, 2008 | 01:17 AM

pleej

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built gsr v built b20vtec

Ok been doing alot of searching and thinking .
what would make the most power on a built motor both with stock size bores
built as in
skunk2 valve train
pistons & rods
p&p head
skunk2 intake with port mached t body

Jun 7, 2008 | 01:40 AM

oldskool teggy

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From: 909, ca, usa

Re: built gsr v built b20vtec (pleej)

is this not obvious??

Jun 7, 2008 | 08:15 AM

b19coupe

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Re: built gsr v built b20vtec (pleej)

D15 FTW!
It's kind of a no brainer. More displacement =more power.

Jun 7, 2008 | 09:02 AM

b16a4

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From: Miami, FL, USA

Re: built gsr v built b20vtec (b19coupe)

same bore.

84mm?

the b20 has a larger stroke due to the crankshaft.

b20vtec ftmfw!

Jun 7, 2008 | 09:50 AM

RNbuilt

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From: NJ

Re: built gsr v built b20vtec (b19coupe)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b19coupe »</TD></TR><TR><TD CLASS="quote">D15 FTW!
</TD></TR></TABLE>

Jun 7, 2008 | 05:21 PM

Dark@Powers

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From: R. Heights 626, Ca, United States

Re: built gsr v built b20vtec (pleej)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pleej »</TD></TR><TR><TD CLASS="quote">Ok been doing alot of searching and thinking</TD></TR></TABLE>

Search and think some more, B20's bore owns B18.

Jun 7, 2008 | 05:33 PM

Combustion Contraption

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From: So Cal

Re: built gsr v built b20vtec (b16a4)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16a4 »</TD></TR><TR><TD CLASS="quote">same bore.

84mm?

the b20 has a larger stroke due to the crankshaft.

b20vtec ftmfw!</TD></TR></TABLE>

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Jun 7, 2008 | 05:34 PM

b19coupe

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Re: built gsr v built b20vtec (b16a4)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16a4 »</TD></TR><TR><TD CLASS="quote">same bore.</TD></TR></TABLE>
No.
GSR=81mm bore.
B20=84mm bore.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16a4 »</TD></TR><TR><TD CLASS="quote">the b20 has a larger stroke due to the crankshaft.</TD></TR></TABLE>
Correct there. The GSR has an 87.2mm crank, the B20 has an 89mm crank

Jun 7, 2008 | 05:35 PM

Combustion Contraption

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From: So Cal

Re: built gsr v built b20vtec (b19coupe)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b19coupe »</TD></TR><TR><TD CLASS="quote">Correct there. The GSR has an 87.2mm crank, the B20 has an 89mm crank

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

Damn. And here I was thinking it had more stroke due to the camshafts.

Jun 7, 2008 | 06:01 PM

#10

UncleD

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From: GO PACKERS

Re: built gsr v built b20vtec (Combustion Contraption)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nick M »</TD></TR><TR><TD CLASS="quote">4) E-Racing/Bench Racing/Guess my 1/4 or HP
There is no place for it here, it is not productive, frequently leads to arguments, and is generally pointless. Go find a dyno or a drag strip.</TD></TR></TABLE>

Lock otw...

Jun 7, 2008 | 06:41 PM

#11

nipcup101

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From: SoCal, ca, san berdo

Re: built gsr v built b20vtec (clean rice)

wowzor

Jun 8, 2008 | 10:41 AM

#12

b20beast83

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From: Miami, Florida, USA

Re: built gsr v built b20vtec (Combustion Contraption)

To CC;
Rod length will also give you move stroke.

Modified by b20beast83 at 11:58 AM 6/8/2008

Jun 8, 2008 | 10:49 AM

#13

b16a4

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From: Miami, FL, USA

Re: built gsr v built b20vtec (Combustion Contraption)

misread the op

thought he said if the both engines had the same bore

Jun 8, 2008 | 01:19 PM

#14

PyroProblem

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From: Atlanta

Re: built gsr v built b20vtec (b16a4)

Last I checked,changing rod length will not change the stroke...

How about a B20 with a B16 crank?

Jun 8, 2008 | 03:08 PM

#15

b20beast83

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From: Miami, Florida, USA

Re: built gsr v built b20vtec (b20beast83)

i stand corrected
but it will give more torque

Jun 12, 2008 | 02:13 AM

#16

oldskool teggy

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From: 909, ca, usa

Re: built gsr v built b20vtec (b20beast83)

rod length will not give you more torque, nor will it give you more hp.

except maybe a high rpm application. even then, rod ratio only means better efficiency way up high in the rpm range, which in turn CAN lead to more power. but going by what you are saying, the rod length itself does not make more power