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View Full Version : I found B20A8!!!


Paul Aerodeck86
03-06-2003, 02:46 AM
I found DOHC 2.0 B20A8 engine from Honda Accord 88 (sedan, without flip-up headlights). With 5MT it's cost $650. What you think about this?

I try to found info about specs for this engine and in google found, what it's have DOHC 16 valve 2.0 98kW/133hp

Does it really to convert this engine to JDM B20A with 160hp by replacing some parts? What you think about it? I need your opinions.
Paul Aerodeck86
03-06-2003, 02:55 AM
In another source, i found info, what B20A8 have 101 Kw/ 137hp... :banghead:
shepherd79
03-06-2003, 04:26 AM
i think B20A(plus number) always had around 130-140HP.
RCracer
03-06-2003, 11:30 AM
The euro version of the 3rd gen B20a is the B20a2 or B20a7 and has 137bhp.
I converted my B20a2 to JDM spec by using the camshafts from a JDM B20a.
I could only measure the parts (with a caliper and ruler) but the only parts that appeared to be differant were the camshafts.
The B20a has more power now (running on a standard carb) with the JDM B20a cams than it had with the B20a2 cams and EFI.

It is hard to get any info from honda on the early B20a's
carotman
03-06-2003, 06:21 PM
yes, the camshaft is different. I think that the compression ratio is also different. The camshaft alone cannot be responsible for 25 hp.
RCracer
03-07-2003, 02:43 PM
I measured the crank and the bore and they both have the same connecting rods so??
Maybe the B20a (from a 2nd gen prelude) had been rebuilt
pric
03-07-2003, 03:20 PM
Not 100% sure but I do believe that the heads on the JDM B20A are different in that they have a better flow design and larger valves not to mention a different cam. Plus I know there was a difference in the comp. ratio.
1989 DX R
03-07-2003, 03:34 PM
The B series has so many incarnations its really amazing.
Paul Aerodeck86
03-07-2003, 03:53 PM
Paul, are you saying that the only difference between the JDM B20A and the B20A2(7, 8) are the camshafts? What about the pistons, valves, and the crank shaft? I am planning to buy this engine and eventually replace some parts with JDM spec counterparts in order to increase output to 160 hp.
carotman
03-07-2003, 04:25 PM
The pistons are different if the compression ratio is different.
RCracer
03-08-2003, 02:12 AM
I know that the valves from the B20a and the b20a2 are the same size.
Not sure about the compression ratiio.
There is very little info on the B20a2/B20a7 from honda.
carotman
03-08-2003, 05:35 AM
yes, the valves are the same as the B20A5 from the 88-91 prelude too. The crank and rods are the same in europe and Japan.
Vega88lxi
03-12-2003, 08:28 AM
Quick question for anybody who knows, is there a diference in power between the black top b20a and the gold top b20a? and which one is newer black top or gold?
Swan
03-18-2003, 07:26 PM
this is just a strange question.....not really looking for answers...but just thinking....is it strange for me to want an aerodeck? I like them for some reason
AvgWhtMale
03-18-2003, 08:36 PM
Vega: Gold top is '86/'87, 110 HP. Black top is '88/'89, with dual-stage intake runners and 4-2-1 exhaust manifold. It makes 120 HP because of the better breathing at high RPMs. However, Sean says the older intake manifold flows more freely, so... Uh, I dunno.

Swan: No.
RCracer
03-19-2003, 02:19 AM
Originally posted by AvgWhtMale
Vega: Gold top is '86/'87, 110 HP. Black top is '88/'89, with dual-stage intake runners and 4-2-1 exhaust manifold. It makes 120 HP because of the better breathing at high RPMs. However, Sean says the older intake manifold flows more freely, so... Uh, I dunno.

Swan: No.

WRONG
a B20a making 110 -120 hp :lol :lol :lol

He is wright that the inlet is single stage on the Gold top and duel stage on the black top.
But
the B20a is rated at 160 bhp.

and to swan AERODECKS rule:super:
Vega88lxi
03-19-2003, 05:05 AM
So theres no hp diference in them? And so the gold top is 86/87 and the black top 88/89?
RCracer
03-19-2003, 05:37 AM
Originally posted by Vega88lxi
So theres no hp diference in them? And so the gold top is 86/87 and the black top 88/89?

check the FAQ on the B20a

http://www.3geez.com/showthread.php?threadid=86
A20A1
03-19-2003, 06:08 AM
Get a red top and we would have found ourselves the Type R Accord motor... :D I can only dream.
Vega88lxi
03-19-2003, 07:38 AM
check the FAQ on the B20a

Thanks, everything I needed was there.
AvgWhtMale
03-21-2003, 08:05 PM
Uh, oh yeah, he he, those are the A20A power specs...
AvgWhtMale
03-21-2003, 08:28 PM
A20A3 even...
pedrosa
10-26-2005, 01:02 PM
i think you found b20a2 engine 101 kw. b20a7 is prelude engine
snoopyloopy
10-27-2005, 04:25 PM
he says it's a b20a8 from an accord. and how many of them are just sitting around there, my friend?
blahblahblah
11-09-2005, 09:01 AM
"holy old thread batman"
newaccorddriver
11-09-2005, 06:15 PM
Vega: Gold top is '86/'87, 110 HP. Black top is '88/'89, with dual-stage intake runners and 4-2-1 exhaust manifold. It makes 120 HP because of the better breathing at high RPMs.

would the exhaust manifold from an 88/89 fit my 86-87 without any modifications?