Difference between B16A1 and B16A2

[oKIR]

I just want to know what the difference is between the b16a 1 and 2 !! And if they will fit tha same mount in the car... (Speaking theoretically)

[Hybrid1990crx]

Well the b16a2 as about 10 or so more horse power, not really sure why. Head flows better? I have no idea, but would like to know if someone can answer that.

And the b16a1 has a cable tranny, while the b16a2 has a hydro tranny. if you have a fourth gen, which I guess you do, the b16a1 will go in easier, since fourth gens also have cable trannys. 92 and up have hydro trannys.

[maxspeedhonda]

The 10 or so extra horsepower come from the slightly higher compression ratio.

[superbluecivicsi]

heres some b16 info for you.

http://tech.hybridgarage.com/tech/b16/index.html

[crxlvr]

the b16a2 runs OBDII while the b16a runs OBD0.

[eckoman_pdx]

well, techincally the b16A1 came from the civic 1.6/VTi in europe. But is has the same power rating as the JDM first gen B16A. (In japan, there was never a B16A1, B16A2, etc rating, just B16A). The B16A2 is USDM from the Del Sol Vtec. The B16A3 is USDM Si. Both are rated at 160hp. The B16A3 is ODBII, the B16A2 is ODBI (unless there was a 97 Del SOl Vtec, that B16A2 would be OBDII if they made one). The first gen JDM B16A was rated at 158hp and was non-ODB, the second gen JDM B16A was rated at 168hp, and was ODB-I. The JDM 3rd gen B16A was ODB-II, same hp as 2nd gen. The reason for the power bump of 10hp in the 2nd and 3rd gen JDM B16A vs the JDM 1st gen B16A (and the USDM B16A2 & A3, the european B16A1) is that it has a 10.4:1 cr vs the 1st gen's 10.2:1. Also, the 1st gen JDM and the european B16A1 had a cable tranny. All others had a hydro tranny.

[dejoux]

B16A's in Japan were never officially called B16A1 and B16A2 but they still get called it. (not just in US but in JDM countries like Japan and NZ)

B16A1 - 160hp. Cable tranny. Came in EF9 Civic SiR, EF8 CRX SiR and DA6 and DA8 Teg XSi

B16A2 - 170hp. Hydro tranny. EG6 and EG9 Civic SiR, EG2 Del Sol SiR, DA6and DA8 Integra XSi facelift plus EK SiR

The differences are B16A2 has OBD1 instead of OBD0 wiring, different rocker cover, higher compression, different cams.

HTH

[imprtsyco]

so if i was doing ls/vtec i would want the b16 head right, opposed to the b18,s?

[eckoman_pdx]

Originally Posted by imprtsyco

so if i was doing ls/vtec i would want the b16 head right, opposed to the b18,s?

You can use a GSR or B16A head for an LS/Vtec. However, the B16A head flows better by 5.25% and also has silighty more displacement than the GSR head, 42.7 to 41.6 (the LS head is 45cc). An LS/Vtec with a B16A head would be 1832.17cc. A LS/Vtec with a GSR would be 1831.07cc. A regular LS is 1834.47cc.

[integra818]

[quote=eckoman_pdx]The B16A2 is USDM from the Del Sol Vtec. QUOTE]


Dude, we never got a Del Sol in America with a B16, you're probably thinkign of the 98+ Civic Si.

[SteveDX89]

Originally Posted by integra818

Dude, we never got a Del Sol in America with a B16, you're probably thinkign of the 98+ Civic Si.

Wow, this is something I'd never expect from someone with over 2000 posts.

[integra818]

I'm not a postwhore, if that's what you're tryin to say. The guy said Del Sols in in AMerica came with B16s...then siome kid thnks del sols have B16s for a while, which is wrong info.

[crxlvr]

actually integra the 94-95 Del Sol came with an option for the B16a3 motor. there were the base del sol, the s model and the del sol vtec which had the b16.

however eckoman, the b16a2 is from the USDM 99-00 Si's and the b16a3 was the USDM 94-95 Del Sol Vtec.

[eckoman_pdx]

Originally Posted by integra818

I'm not a postwhore, if that's what you're tryin to say. The guy said Del Sols in in AMerica came with B16s...then siome kid thnks del sols have B16s for a while, which is wrong info.

Dude, the Del Sol DID COME WITH AN OPTION FOR A B16A FOR A FEW YEARS. IT WAS CALLED THE DEL SOL VTEC, MANY YOU'VE HEARD OF IT. This is not wrong info, but fact. Ask Honda, go find a Del Sol Vtec and pop the hood. Regular trim Del Sol's had a D16Z6, not B16A, but the Del Sol Vtec trim (made in 96-97) had a B16A under the hood from the factory. It was not a mass produced car, but it was produced. Del Sol's in the us did come with a B16A....not all del sol's, but some, the Del Sol Vtecs. (I beleive the 96-97 Del Sol's came with the option for the B16A powered Del Sol Vtec)...I get so sick of people coming in here and saying things like this without properly looking up the info. There were 2 cars in the US released with a B16A...the Del Sol Vtec (B16A) and the 99-00 Si (B16A). Neither were a mass produced Honda, per say, like the EX, etc civics were. But they were released. Look up the codes, all the engine books, etc, all list the Del Sol Vtec as having a B16A as well as the Si. I can't believe someone actually came in here and told us "you're wrong, the del sol never came with a B16A, must have been thinking of the 98+ Si." Ok, besided that being wrong (The Del Sol Vtec had a B16A), the Si was not 98+, it was 99-00. Get the facts straight before you say them.

To crxlvr, you may be right about the exact codes, though I swear I remember it the other way around. I'll check out the codes when I get home tonight to see which one had the B16A2 and which had the B16A3. I'll post it tomarrow. I have multiple sources I can cross-reference there, so I'll check and post it tomarrow afternoon.

[integra818]

Aright, aright, relax man, a small slip-up and you go ballistic on me, chill out. The fact that I've NEVER seen a Del Sol with a stock B16 has led me to believe that they never came with that engine, even tough they do. MY mistake, you don't have have to burst into flames and shit like that.