Alfa Q

I have a 91 prelude SI, how do i find out what kinda of motor i have.

VIN JHMBA4239MC011098
Year/Make/Model: 1991 HONDA PRELUDE SI
Body Style: COUPE
Engine Type: 2.0L L4 FI
Manufactured In: JAPAN

I have looked to see what types of mototr were put in the 91 prelude, how do i know whitch one it is
Thanks

B20A5
(16-valve, DOHC, PGM-FI)
Found in:
1988-1991 Honda Prelude 2.0Si
Power: 135 hp
Engine cc: 1958.14
Cylinder cc: 489.535
Deck cc: 13.885
Head cc: 47.3
Compression Ratio: 9.0:1

B21A
(16-valve, DOHC, PGM-FI)
Found in:
1990-1991 Honda Prelude Si States
Very rare, it was only produced for the "Si States" models in Japan
Power: 185

B21A1
(16-valve, DOHC, PGM-FI)
Found in:
1990-1991 Honda Prelude Si
Power: 140 hp @5800 rpm
Torque: 135 lb.ft @5000 rpm
Engine cc: 2056.03
Cylinder cc: 514.0075
Deck cc: 10.191
Head cc: 51.0
Compression Ratio: 9.4:1
Torque (lb.ft. @ rpm): 135@5000

jaywoodz

uhh

it should say it on the engine block.. pop the hood and take a look

94Vtecluder

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

B21A
(16-valve, DOHC, PGM-FI)
Found in:
1990-1991 Honda Prelude Si States
Very rare, it was only produced for the "Si States" models in Japan
Power: 185

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

Scratches head.

I don't *think* there was ever a 185hp 3rd gen lude. 90-91 pre-dates their VTEC system even in Japan. I can't really see them producing that much hp out of that engine without it. Where did you see this?

Alfa Q

i have looked all over the block and can't find anything.. Where is it stamped

pprowler6

usually to the left of the headers looking down at the engine

plikit

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

I don't *think* there was ever a 185hp 3rd gen lude. 90-91 pre-dates their VTEC system even in Japan. I can't really see them producing that much hp out of that engine without it. Where did you see this?</TD></TR></TABLE>

im pretty sure thats a typo. it should be 135hp

DucDucSTFU

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Alfa Q &raquo;</TD></TR><TR><TD CLASS="quote">I have a 91 prelude SI, how do i find out what kinda of motor i have.

VIN JHMBA4239MC011098
Year/Make/Model: 1991 HONDA PRELUDE SI
Body Style: COUPE
Engine Type: 2.0L L4 FI
Manufactured In: JAPAN

I have looked to see what types of mototr were put in the 91 prelude, how do i know whitch one it is
Thanks

B20A5
(16-valve, DOHC, PGM-FI)
Found in:
1988-1991 Honda Prelude 2.0Si
Power: 135 hp
Engine cc: 1958.14
Cylinder cc: 489.535
Deck cc: 13.885
Head cc: 47.3
Compression Ratio: 9.0:1

B21A
(16-valve, DOHC, PGM-FI)
Found in:
1990-1991 Honda Prelude Si States
Very rare, it was only produced for the "Si States" models in Japan
Power: 185

B21A1
(16-valve, DOHC, PGM-FI)
Found in:
1990-1991 Honda Prelude Si
Power: 140 hp @5800 rpm
Torque: 135 lb.ft @5000 rpm
Engine cc: 2056.03
Cylinder cc: 514.0075
Deck cc: 10.191
Head cc: 51.0
Compression Ratio: 9.4:1
Torque (lb.ft. @ rpm): 135@5000

</TD></TR></TABLE>
you answered your own question
and for future reference here you go http://asia.vtec.net/topics/enginecode.html

Alfa Q

I got the info here
http://en.wikipedia.org/wiki/Honda_B20A_engine

Thanks for al your help... Yes this might have been a dumb and smiple question to al lof you but i'm a new honda owner. I have always had a 60's or older ford. Thanks again

WhiteBB2

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Alfa Q &raquo;</TD></TR><TR><TD CLASS="quote">Thanks for al your help... Yes this might have been a dumb and smiple question to al lof you but i'm a new honda owner. I have always had a 60's or older ford. Thanks again</TD></TR></TABLE>

honda is a big difference...