difference between b16a1 & b16a2

What si the difference between the b16a1 and the b16a2?

B16A1's are preOBD, have a cable tranny, put out 158hp@7600rpm and 112lbs-ft@7000rpm of torque...

B16A2's are OBD1 (except the ones from the 99-00 Civic Si which are OBD2), have a hydro tranny, puts out 168hp@7800rpm and 116lbs-ft@5200rpm of torque...

Theres other slight differences, but these are the main ones...

Basically, the easier one to swap into an EF chasis, is the B16A1, because the chasis is preOBD and have a cable tranny...

Kindof wrong! B16A2's are found only in 99-00 Civic Si USDM. They are rated at 160hp, they have one type of tranny, hydro, non-lsd. if i remember correctly a 4.40 F/D ratio. B16a1's are found in JDM Integra's, They come stock with a s1 tranny, non-lsd(not an option), super short gearing. The a1 is obd-0, while the a2 is obd-2b.

The a2 has a better intake manifold and throttle body is slightly larger. While the a1 has a shit loads of vaccum lines, 2 dashpots for idle controls and fuel economy. They both have a 4-2-1 header. The a1 has 2 oxygen sensors, while the a2 has 1 single 4 wire(?) oxygen sensor. The a1 has a seperate throttle body and fast idle valve, while the a2 has a fast idle valve attached to the throttle body. a1 and a2 have different crank pulleys. a1 has a 1 wire knock sensor, a2 has a 2 wire knock sensor. The a2 has a crank sensor in the oil pump, the a1 doesnt.

Thats about all i can think of. More externally!

Maybe you meant more along the lines of what is the difference between a JDM b16a Gen1 and a Gen2??

that about the del sol vtec? doesnt that have a B16a3?

that about the del sol vtec? doesnt that have a B16a3?
correct!

Kindof wrong! B16A2's are found only in 99-00 Civic Si USDM. They are rated at 160hp, they have one type of tranny, hydro, non-lsd. if i remember correctly a 4.40 F/D ratio. B16a1's are found in JDM Integra's, They come stock with a s1 tranny, non-lsd(not an option), super short gearing. The a1 is obd-0, while the a2 is obd-2b.



The B16A G2 is commonly reffered to as the B16A2, and was so long before the real B16A2 made its way into the USDM 99 Civic Si's... But yea, I guess technically the B16A g2 isnt technically a 'B16A2', as they dont have a revision stamp (only 'B16A', no JDM engine has a 5 digit), its commonly called an A2 anyways by most... Its been kind of grandfathered in so-to-speak...

And the A1 aka gen1 B16A, was found in JDM CRX/Civic SiRs aswell as some Integras (not all JDM Integras had the B16A)...

The B16A G2 is commonly reffered to as the B16A2, and was so long before the real B16A2 made its way into the USDM 99 Civic Si's... But yea, I guess technically the B16A g2 isnt technically a 'B16A2', as they dont have a revision stamp (only 'B16A', no JDM engine has a 5 digit), its commonly called an A2 anyways by most... Its been kind of grandfathered in so-to-speak...

And the A1 aka gen1 B16A, was found it JDM CRX/Civic SiRs aswell as some Integras (not all JDM Integras had the B16A)...

Sorry with all your fricking nonsense, i meant to type EDM Integra's! The B16a1 (the one with a a1 stamped at the end, only had 150hp. BTW!)There is no way in hell that the Gen 2 b16a is refered to as a B16a2!! A generation 2 b16a came out of a SiR-II civic, while the 1st gen B16a came out of a SiR CRX/civic.

I know it was not found in every jdm integra. Thats why i said its found in them, not everyone. Its like a lot of jdm cars. B16a's can be found in them! When i mean integras i mean the 90-93 integras! I believe they were also found in late 89 tegs also.

Sorry with all your fricking nonsense, i meant to type EDM Integra's! The B16a1 (the one with a a1 stamped at the end, only had 150hp. BTW!)There is no way in hell that the Gen 2 b16a is refered to as a B16a2!! A generation 2 b16a came out of a SiR-II civic, while the 1st gen B16a came out of a SiR CRX/civic.

I know it was not found in every jdm integra. Thats why i said its found in them, not everyone. Its like a lot of jdm cars. B16a's can be found in them! When i mean integras i mean the 90-93 integras! I believe they were also found in late 89 tegs also.

See I took your correction towards my post like a man... Even admitted that technically you were right... But you obviously are getting a tad heated, and your ego must be getting hurt... This is obvious by you trying to insult my intelligence, by saying what I am saying is 'nonsense'... But hey, thats fine, if u want to be a big man and insult my info, go ahead...

And I will just have to correct u a tad more, and show proof:

When I said not all Integras, I actually didnt mean years, as there is a few different trims of JDM Integras, 2 of which came with the B16A, these being the XSi & RSi respectively, but the base models have a variant of the DOHC ZC... (see here under Integra Engine codes http://www.clubcivic.com/board/specs.php )...

BTW, so u dont get confused again, this is JDM, not EDM... I dont know many of the differences between the EDM and JDM, but I do know a bit about JDM vs USDM...



As for the B16A2 just take these links for instance where the B16A G2 is called the B16A2:

http://www.superhonda.com/tech/honda_engine_codes.html

B16A2 Honda Civic SiRII (JDM) 1992-1995

http://www.topendmotorsports.com/engine/motorswaps/engines/honda/

2nd letter + Number ..
.. represents the model/generation of the motor.
.. .. ex: B16a2 = 'a' model and 2nd generation

http://www.teirney.net/civic/B16AReference.htm

USA B Series Engine Statistics

Of course, there are also some variants of the mighty B16A within the US market as well. The USA B16A variants can be differentiated from their JDM counterparts by the engine code stamped on the block. All USA B16A engines have a number stamped after the equivalent JDM engine code to identify the generation of the B16A engine. For example, B16A1 would be a first generation USA B16A engine and B16A2 would be a second generation USA B16A engine.

As u can see, the A2 acually reffered to the second generation of the B16A engine... Henceforth, the B16A2 == B16A G2...

See I took your correction towards my post like a man... Even admitted that technically you were right... But you obviously are getting a tad heated, and your ego must be getting hurt... This is obvious by you trying to insult my intelligence, by saying what I am saying is 'nonsense'... But hey, thats fine, if u want to be a big man and insult my info, go ahead...

And I will just have to correct u a tad more, and show proof:

When I said not all Integras, I actually didnt mean years, as there is a few different trims of JDM Integras, 2 of which came with the B16A, these being the XSi & RSi respectively, but the base models have a variant of the DOHC ZC... (see here under Integra Engine codes http://www.clubcivic.com/board/specs.php )...

BTW, so u dont get confused again, this is JDM, not EDM... I dont know many of the differences between the EDM and JDM, but I do know a bit about JDM vs USDM...



As for the B16A2 just take these links for instance where the B16A G2 is called the B16A2:

http://www.superhonda.com/tech/honda_engine_codes.html



http://www.topendmotorsports.com/engine/motorswaps/engines/honda/



http://www.teirney.net/civic/B16AReference.htm



As u can see, the A2 acually reffered to the second generation of the B16A engine... Henceforth, the B16A2 == B16A G2... Thank you and goodnight... :wink:


Nothing personal but i think your the one getting a tad heated? WTF you must have spent AT LEAST 10 min searching for that stuff.

I can assure you that the superhondas website is wrong. I have pulled a SiR B16a motor out of a front clip, And i am 100% positive that it didnt say b16a1, so the people that posted that are obviousley wrong!

Your links arent really crediable. All i am trying to say is a B16a2 is not the same as a b16a Gen 2. Compare it. A USDM 99-00 civic si motor is not equal to a SiR-II motor! Bottom Line!

Look at you link, even they describe it as a B16A G2 or G1 and even G3...
http://img142.echo.cx/img142/8307/b163tx.jpg (http://www.imageshack.us)

Nothing personal but i think your the one getting a tad heated? WTF you must have spent AT LEAST 10 min searching for that stuff.

I can assure you that the superhondas website is wrong. I have pulled a SiR B16a motor out of a front clip, And i am 100% positive that it didnt say b16a1, so the people that posted that are obviousley wrong!

Your links arent really crediable. All i am trying to say is a B16a2 is not the same as a b16a Gen 2. Compare it. A USDM 99-00 civic si motor is not equal to a SiR-II motor! Bottom Line!

As I said before, technically you are right, the B16A2 is the 99-00 Si engine... But the B16A g2 is also commonly reffered to as the B16A2, and it was before the engine stamped 'B16A2' was dropped into the first ever USDM 99 Civic Si... That was my point... Theres so many ppl who call the second gen B16A a B16A2 (tho incorrect) its too late to change it now... And you are also correct about the B16A, as I said before, no JDM engines have a generation number on them... So technically there is no JDM 'B16A1' either, but again, its commonly called that to tell the 2 apart... As was the case before Honda screwed everybody up and stamped the 99-00 Si engine 'B16A2'...


BTW, when u called my info 'nonsense' and insulted my intelligence I did get heated... But it is apparent my correcting you got u heated as well... So for any misunderstanding, I appologize... But I thought my point was clear from the beginning...

"Honda engine codes consist of a letter, a two digit #, another letter, and sometimes another #. "

Taken from link #2, meaning sometimes another number, not every b16a you can throw a fricking 1 2 or 3 after it!

Whatever i give up noob. Goodnite to you also!

"Honda engine codes consist of a letter, a two digit #, another letter, and sometimes another #. "

Taken from link #2, meaning sometimes another number, not every b16a you can throw a fricking 1 2 or 3 after it!

Whatever i give up noob. Goodnite to you also!


WTF are you talking about? Im not saying to just 'throw a number on there'... Im telling you its commonly done by the Honda community, and has been for years... The B16A1 is a prime example, there is in fact no JDM engine stamped 'B16A1' (this is because JDM engines DO NOT HAVE A 5th CHARACTER ON THE STAMP), it is stamped simply 'B16A', when the second gen of that very engine came out, it too was stamped only 'B16A', ppl called it the 'B16A2', this was done so you could tell the difference between the 2 generations of engines... And when Honda introduced the engine actually stamped 'B16A2' it caused exactly the miscommunication we are experiencing now... Im the newb, when Im telling you pre 99 info that you obviously dont know about? :screwy:

I know my 'uncredible' links, but heres more that say exactly what Im saying...

http://www.honda-tech.com/zerothread?id=1149741

Ok your close man. There is actuall NO JDM B16A2, there is the first gen JDM B16A (cable tranny, similiar HP to USDM 99-00Si B16) and the second gen JDM B16A (hydro tranny, better HP over USDM 99-00Si B16). These are commonly reffered to as JDM B16A1 and JDM B16A2 but BOTH will have B16A on the block. The USDM B16A is the actual B16A2 from the 99-00Si. I wouldn't go with this option, most likely stolen for one and its USDM for two. Also there is the USDM B16A3 from the 94 DelSol VTEC. The USDM motors will say B16A2 or B16A3 on the block, again JDM will not have a number after B16. Go JDM bro, talk to Tony @ Import Palace, he hooked me up with my second gen JDM B16A. His website is http://www.import-palace.com. When ordering let him know Adam from Chicago sent you to him. Have fun. Happy Tuning!!!


http://www.honda-tech.com/zerothread?id=993214&page=2


Your car is quite clean. From a fellow B16A DA owner. Also for getting a set of light, relatively inexpensive wheels that are NOT Rotas.
PS...Your engine is not a B16A1. It is simply a B16A. The number you add after the A would mean that the engine is not JDM i.e.: the 99-00 Civic Si B16A2. Ppl commonly call their JDM 2nd generation B16A's "B16A2" but in actuality they are calling their engines a USDM Civic Si engine. Just FYI. Peace.


As u can see, it is common practice, to append a generaton number onto JDM engines, even tho they dont have a generation number on them...

What is with the arguing up in here? The sad truth is that Exempt is right. The majority of people do refer to the SiRII engines as the B16a2 and the SiR as the B16a1. Anyone who knows any better knows the truth. And we're the ones who have to deal with the confusion; when trying to decipher what the hell engine people are talking about. I'm surprised you haven't noticed it on this forum alone. I see people making those mistakes every day. Time to move on and let it go...damn.

I have in B16A2 engine from honda civic 93' VTI VTEC, OBD1 and on the engine it says B16A2 and it's almost the same as B16A2 that comes out 96'-99' had bouth engine at home there's a slight diference in electronic OBD2 but that can be fixed...
So this is first time i ever heard of B16A gen2 very weird thing !

Oh yeah and bouth have 160HP

ok listen to this i had a b16a1 and blow the motor in my 89 hb
now i order a b16a again but got a b16a2 and i didnt know until i put it in the car when i did i had to change the fuel injector and rails and the distripuator to and it is obd0 but i have a code for my fuel injectors and coolant sensor plus it only gos up to 7000 rpm and in my ecu i got a spoon computer chip before it use to go up to 8500 rpm