It is A3, being the 170 hp version sold only in Japan, not here. You will never get a dyno wheel hp of 146 hp on a US CRX nor a redline of 8200 rpm.. Most we ever got was 101 at the wheels on our 'tuned' 90 and 91 IMSA CRX.
And in the wet Vettes do have a traction problem with wide tires. Even so in the dry they lost the first 100 feet out of Oak Tree. After that of course they did pull away but not far as you'd expect.
There is a reasdon why camaros hated CRX in IMSA Firewawk series; if the CRX got to the corner first the Camaros were likely to fall behind unless it was RA's long back straight.
My shop manual says my 1991 Si had no vtec. The 160, 170, and 180 hp vtec versions were all Japanese or European market; the DOHC was European designated only. US had only SOHC. Certainly no close-ratio 4.88 LSD either.
The usual Si had only 105 hp.

 

Well I guess that H motors online is wrong then cause according to you there's 2 Jdm b16's... So what is the b16a then?

 

There was only 108 hp version of CRX Si, standard was 92 hp, and the HX, prior, was only 88 hp I believe imported into the USA by Honda. All were SOHC and none Vtec.
The DOHC versions were Japanese and European DOHC models of 130, 160, 170, and 180 hp; only the last 3 were vTec. Which is why those are the popular transplanted engines. Along with suspension improvements and close-ratio 4.88 LSD transmissions, they are the best combiations.
You can argue that the 180 would be better but I thought the 180 a bit too difficult to get along in regular traffic so thats why the 170.
Incidently. I',m geetting mine from shop manuals, sales brochures, and my Honda IMSA files. I am told that these are verified spec-wise, at HondaCRXSi website. A quick look I agree thats what my files say as well.

 

All B-Series are DOHC's. There was a B16 Vtec engine "made" in America. It was in the Civic Si 99-00 (i think) and the Del Sol Vtec.

 

Sorry through 1991 CRX no DOHC CRX. There may have been one in the DeSol in 92 but we had no interest in that car. Insurance on the toe-out on cornering eliminated the CRX. And I don't disagree with A SOHC and B DOHC, just that thru 91 there was no DOHC or vtec in CRX in the USA models. They were all A16's. After that is not the point; the DOHC versions issued by Honda were B16A1,A2,A3, and A4 for the 130, 160, 170, and 180 hp vtec versions, only the 160, 170, and 180 hp versions were vtec, none of which at the time were installed in US cars, only European and J3panese market cars. The B16A1 apparently was the DOHC non-vtec 130hp B engine installed later in the DelSol and Civic Si, as far as I know from my files. That doesn't mean a lot of private engine switching didn't happen, just that the only ones matching a Honda model would be the CRX SiR series of 160, 170, or 180 hp models.

 

Sorry I was thinking you were saying they never made a DOHC B16 in America, anyways carry on.

 

Ok from the look of it. if its the car in those pics, i can see that it is 90-91 si, not siR. it has Falken Hanabi wheels on it, pretty clean interior, and it has a b16 of some sort in it. but the engine bay is teal and the car is white. and it seems to only have an intake on it giving it MAYBE 140-150 wheel HP

 

You are correct about exterior repainted white and wheel horsepower in the 140-150 range since we have the dyno showing 146 hp at 7200 rpm.. That justifies the Honda engine rating at 170 hp, especially since the dyno would not handle speeds over 7200 rpm and the hp was still rising.
The body is indeed CRXSi as is the SiR. The intake is ours as the SIR engine did not come with the Japanese intake.
And yes, it has lightweight wheels tho the 14" original wheels go with it.
Whats your point? That its a refurbished CRX with LHD and not original SiR? Of course, we said that originally as anyone knows RHD isn't left hand drive and thus no difficulty getting it registered. Does SiR engine, suspension, drivedrain, and transaxle in a CRX body (same as SiR) make it any less desireable? Whats your point?

 

I think perhaps this is getting a little silly. All the comments need to be kept in PMs first. And second this is in the wrong place to begin with because this isn't a used fit item. Thanks