What is really, truely the big difference besides the 10.2 vs 10.4 compression ratio, 8hp and about $500 more to do a JDM swap. Is it really worth it?? One can definitely can get 8 more hp for much less than $500. Im going to do a swap and just want to get peoples opinion on what they did and what they wished they wouldve done or not done. Ive looked into a B18C1,3 but just cant see justifying $2500 more for only 30-40 more hp from at B16A 1st gen or 2nd gen. Yes, Ive done as much searching on here and am just not finding much "usable" info.

 

the main difference is the cams, obd1 which is always a plus, and the compression as you said. they're minor differences and in the end amount to nothing, especially if you plan on upgrading cams and valve train. the only truly helpful advantage of having a second gen b16a is obd1. however, you can always convert your obd0 to obd1 without a whole lot of trouble. if your car right now is obd0 i would go with og b16a.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95lscivic &raquo;</TD></TR><TR><TD CLASS="quote"> og b16a.</TD></TR></TABLE>

theres not much difference really

but the first gen would be alot easier as you dont have to upgrade your harness unless your now mpfi already

 

how does really go from obd0 to obd1 help you out?

 

It is obd0, but I do have the programmed FI. Some have said that the OBD1 is more versatile for "tuning". Is that true?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hucoreyCRX &raquo;</TD></TR><TR><TD CLASS="quote"> Some have said that the OBD1 is more versatile for "tuning". Is that true? </TD></TR></TABLE>
O yea. I think I remember hearing that now.

 

BS!!! There is a big difference!!! I have had both in my rex and let me tell you . First off, 1st gen with bolt ons you are looking at 140ish horsepower. Weak. 2nd gen you with bolt ons you are looking at 160ish. 160hp in a rex and you are looking at high 13 second passes. Not only that, but everything you do to the 2nd gen motor will give you more feedback than doing it to a 1st gen. Plus the motor is newer and you won't have to deal with as many problems as the old one. Another is if you ever roll up to another ef of somesort you already have the edge no matter who has more bolt ons. Another thing, cams. If you put cams in your 1st gen you are looking at around 165-170 hp. Do the same to your 2nd gen and bam 170-185. Doesn't matter if your obd0-or obd-1. THe power is there. But going obd1 is better and you will almost be there just from getting the motor. All you would need is the jumper.

Hope this information was helpful.

 

Oh, and there is not a $500 difference. Long block 1st gen go for $600, 2nd gen long block $800.

 

Yes, Helping out alot. Hopefully more people will post some more info. FYI, either engine I get, it is going to get a turbo. But so far I am leaning toward the B16A 2nd gen. As far as HP goes and from the research I found the 1st gen B16A ie CRX SiR is 160HP and the 2nd gen B16A Civic is 168.

 

Im talking about a complete swap (engine, trans, ECU, wiring, axles, mounts, linkage). Most companies are asking about $1500 for 1st gen and $1900-2000 for 2nd gen.

 

1st gen have different pistons, and the cam profiles are slightly different. The intake manifolds are different. The Transmissions are totally different (gearing) as well

 

So what you are saying is that Honda has made the necessary improvements to the 2nd gen. Or is it the 2nd gen maybe "cheapened". Just wondering. Im going to assume that they are improvements.

 

THat is flywheel rated horsepower. I giving you dyno horsepower from same dyno. I dynoed my 1st gen with bolt ons and got 141. I dynoed the 2nd gen with the same bolt ons I got 160. Honda made improvements to the 2nd gen. They made more aggressive cams, higher compression, better flowing intake manifold. ****, the 2nd gen head as better flow than the 1st gens. What I don't know is the difference between the two when turboed.

 

Pretty much same parts, just improved them.

Thanks

 

id say go for the second gen and jump it to obd2 and use the trans dat comes with the second gen all you need is a tranny mount and the actuator sweet gear ratios with the b16 tranny2nd gen!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rexracer626 &raquo;</TD></TR><TR><TD CLASS="quote">id say go for the second gen and jump it to obd2 and use the trans dat comes with the second gen all you need is a tranny mount and the actuator sweet gear ratios with the b16 tranny2nd gen! </TD></TR></TABLE>


Did you actually just suggest OBD2 for a rex? Are you on something?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hucoreyCRX &raquo;</TD></TR><TR><TD CLASS="quote">Yes, Helping out alot. Hopefully more people will post some more info. FYI, either engine I get, it is going to get a turbo. But so far I am leaning toward the B16A 2nd gen. As far as HP goes and from the research I found the 1st gen B16A ie CRX SiR is 160HP and the 2nd gen B16A Civic is 168. </TD></TR></TABLE>

If you are going to turbocharge, save your money, get the first gen B16A, and put the money you saved towards the components you are going to need for boost. The difference in horsepower between the motors will be nullified with boost. With my 1st gen motor, I made 395whp on a stock bottom with CTR cams and valvetrain. This was on race gas, but you can make reliable horsepower on pump gas and a good tune.