BolivianFuego

OK guys, well this really interesting thread came up, and im tyring to find out if this motor does exist? In this thread, this member says that he has a Euro R longblock, yet came with the dual stage intake manifold which we have on stock h22 preludes here. Now the thing that rings instantly a problem here, is as far as i was concerned, this motor never existed!! Well that is as far as i knew truthfylly. WHen i used to have a prelude 4 years ago. He claimed they came stock in accord torneo's SIR's.

Now why would they have an auto version of a accord with 11;1 comp. I always thought the autos were always mated to the more torque'ier h23 motors, for the accord wagons as i didnt even think the accord euro Rs/ Torneos came in auto!

(the thread which i am talking about)
https://honda-tech.com/zerothread?id=2029332

the last guide i remembered outlining what motor was what, and what belonged to where Satan_SRV made a post outlining all that. And from what i remember, he knew his ****. So it was really well outlined with matching tranny codes and bla bla bla.

Here;s a link to that, https://honda-tech.com/zerothread?id=641555

But in that thread, he forgets to add this mysterious motor which i figured above.

If this motors rings true, than it should be added to the list, as i know guys like me im sure still use that FAQ'd list to use as a guide.

I need to know if this motor exists!!

BolivianFuego

With some quick research, it looks like he mayb be on to something.

Here's the same F20B motor with the same duel stage IM but in stick.

http://www.trademe.co.nz/Trade...2.htm

Ok it appears to ring true.


But does this car come with the Euro R cams? Or say the JDM stock h22 cams?

Seeing how its the not as high performance version of the Euro R i'd think the latter? But why????

94Vtecluder

Uhh so what's your question? You saw it exists as both Satan and you said and did come in two versions. One that comes with 197bhp (Although I have also read 200 and 220) and also a milder version.

BolivianFuego

What cams does it have? Satan left off the more tame version to be included in his write up. He only talked about the SIR-T version. Not the SIR version. Meaning blue top motor, but with duel stage IM, but now the next question is? Like i said above what cams does it have in that motor?


Edit: It appears the guy who's motor i believed to be in question made a FAQ in the hybrid section on this motor. LOL

https://honda-tech.com/zerothread?id=2018500

These are what he believe about the motor and i feel is right on point.

It appears my guess was right, JDM h22 Cams in there also. Isnt that strange? A stock motor''d h22 head even stock JDM h22 cams, with a 11:1 Bottom end. They really were just mixing and matching parts on the whole H series family.

machine4321

the sir-t is the 5speed version of the f20b , came mated with the T2T4 lsd tranny . and rated at 197bhp

the sir is the auto f20b with smaller throttle body , smaller cams and of course the ecu .

the f20b sirt cames are suposed to be the same as the type s cams. but ive never seen any proof of that , but it makes sence .

the ports are shaped a bit different then the h22 (slightly smaller ) and smaller valves thne the h22 .


*edit* on the cams i dont thikn anyone has had a true 5speed motor to measure the sir-t cams .

they both came with the daul stage intake mani , although the to phave of the mani is a little different .

BolivianFuego

Interesting.....

Thats strange that they;d give the Autos smaller cams, as compared to the stick version's which is the Type'S cams......

So is the compression still 11:1 on the autos?

machine4321

not really odd , they are more of a midrange cam

and yes still 11:1

P13_mein

the F20B's higher compression ratio is partly due to the fact that the head's combustion chamber is smaller. the cams are the same as the JDM h22 camshafts.
the F20B was introduced specifically for sub 2000cc tariffs markets.
in many tiptronic OBD-II ECU's the output of the motor is governed.
the SiR-T specifically is the 5speed

machine4321

combustion chamber is the sam eas h22 ...

and there was a post a week ago where he siad the bulider measuered the cams and they were bigger then the h22