is there a diference between the JDM s2000 engine and the USDM ? anyone psl ?

 

I cant find a difference

 

I think that the ap2 in japan got the 2.0 liter instead of the 2.2 liter that was offered here in the states. Other than that I don't think that there are any differences power or tranny wise between the japanese and u.s. motors.

 

jdm engine has higher compression...forget the #'s right now

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nishant &raquo;</TD></TR><TR><TD CLASS="quote">jdm engine has higher compression...forget the #'s right now</TD></TR></TABLE>

If I remember correctly I think it has 250 hp due to the higher compression....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MAD ITR 55 &raquo;</TD></TR><TR><TD CLASS="quote">

If I remember correctly I think it has 250 hp due to the higher compression....</TD></TR></TABLE>

i think its 2 more bhp, not 10. this is due to japan having higher octane gas everywhere

 

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

i think its 2 more bhp, not 10. this is due to japan having higher octane gas everywhere</TD></TR></TABLE>

damn higher octane...

can't you buy race gas in Japan on the street pumps?

 

jdm f20c has a compression of 11.1:1, and it's got like 243hp or something like that.....

 

so the JDM tranny has the same specs as the USDM ???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by denisfern &raquo;</TD></TR><TR><TD CLASS="quote">so the JDM tranny has the same specs as the USDM ???</TD></TR></TABLE>

yes

 

Their gas has higher octane but is more crude than our gas.

 

Yup...as someone said before too, the JDM AP2 still has a 2.0, where as the usdm got the newer 2.2, transmissions are obviously different between those 2 engines, but i believe that they are the same spec as the AP1 2.0 and the AP2 2.0.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 03s2kblue &raquo;</TD></TR><TR><TD CLASS="quote">jdm f20c has a compression of 11.1:1, and it's got like 243hp or something like that..... </TD></TR></TABLE>

I always thought the JDM F20C had a compression of 11.5:1....

 

it's actually 11.7:1

 

No it's 13.725:1

 

^^^ Yup...by way of a different head gasket from what i've read.

 

so whats the real jdm compression

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boszyen &raquo;</TD></TR><TR><TD CLASS="quote">it's actually 11.7:1
</TD></TR></TABLE>

You seem to be correct. This is what I get from the Honda.co.jp

" Engine Engine type F20C

Valve gear DOHC chain & gear drive
Inhalation 2 exhaust 2

Entire aerodynamic volume displacement (cm3) 1,997

Inside diameter x distance (mm) 87.0×84.0

Compression ratio 11.7

Fuel feeder type Electrically controlled gasoline injection system
(HONDA PGM-FI)

Use fuel type Unleaded premium gasoline

Fuel tank capacity (L) 50

Lubricating system Force system

Efficiency The highest output
(KW [ PS ] /rpm) * 184［250］/8,300

Largest torque
(N * m [ kg * m ] /rpm) * 218［22.2］/7,500

 

i stand corrected... jsut checked honda of japan.. and it's 11.7:1 compression ratio

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AdamQ3B85 &raquo;</TD></TR><TR><TD CLASS="quote">

Efficiency The highest output
(KW [ PS ] /rpm) * 184［250］/8,300
</TD></TR></TABLE>

Is PS same as HP?? Meaning it has 250hp??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MAD ITR 55 &raquo;</TD></TR><TR><TD CLASS="quote">

Is PS same as HP?? Meaning it has 250hp?? </TD></TR></TABLE>

250 Ps would be something like 246-247 Hp... I do not know the exact convertion.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKRacer &raquo;</TD></TR><TR><TD CLASS="quote">Their gas has higher octane but is more crude than our gas.</TD></TR></TABLE>

really? so what octanes are they able to get there? For some reason I was always under the impression that high octane wasn't as available as it is here in the states.

 

its kinda dumb when all s2000 engines are made in japan. so hence, even though there is a difference between jdm and usdm, all are made in japan.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eludedude &raquo;</TD></TR><TR><TD CLASS="quote">its kinda dumb when all s2000 engines are made in japan. so hence, even though there is a difference between jdm and usdm, all are made in japan.</TD></TR></TABLE>

silly indeed

 

Not really that silly...look at the FLOCK of people that go for Bseries motors and stuff from japan, now imagine the reverse, if they release a motor in the U.S. thats different (and bigger) than the one in japan, maybe they can get some reverse flow of swap demand, with the amount of horrid drivers here, japan should have a buffet full of 2.2's waiting to ship...i mean i doubt that was the reason it was done, but it makes since in this aspect as well as whatever engineering purpose there was for it.