Question about Civic 1.4S vs Coupe 1.5i
04-19-2014, 09:41 AM
#1
Honda-Tech Member
Thread Starter
Question about Civic 1.4S vs Coupe 1.5i
Hi, Can anyone help me with my question?
My Civic EJ2 from 1994, has a 1997 D14a2 engine in it (only delivered in UK)..
Which should be MPFI (that is mine also) I wonder if someone has this engine in original state and can tell my if the distributor is TD41U and if the intake look like the D15/D16 intakes.
If yes, then i know that that is original and not added to the engine.
The other question is, can you also check what the original transmission code is? I have an S20, but some people say it needs to be S40.
Our Dutch car website (autoweek.nl) says that the top speed should be limited at 177km/h, which is also the maximum i can drive with the car.
If the original one is indeed S20, and I have S20.. can someone tell me what is the difference between me S20 and example an S20 from an D16Z6 or D15B7.. because they look the same to me.
And if I buy a S20 from a D16Z6.. how do I know that it's really one from an Z6 and not an other model? Anyway to find that out.
The 1.4S is the car the engine came from, the coupe is what i should have.
Honda Civic 1.4i S
Engine: 90hp / 124nm
Weight: 940kg
Top speed: 177km/h
10.8s to 100km/h
Honda Civic Coupé 1.5 LSi
Engine: 102hp / 133nm
Weight: 998kg
Top speed: 190km/h
9,9s to 100km/h
It sounds kinda strange to me that a civic Coupe, with 12hp more, 9nm more, 58 kilo's heavier still is faster to the 100 and heigher top speed.
So if anyone can help me out that is the difference between those two engines and gearboxes? And i don't think it's just aerodynamics that makes the civic coupe faster.
Thanks and happy easter
My Civic EJ2 from 1994, has a 1997 D14a2 engine in it (only delivered in UK)..
Which should be MPFI (that is mine also) I wonder if someone has this engine in original state and can tell my if the distributor is TD41U and if the intake look like the D15/D16 intakes.
If yes, then i know that that is original and not added to the engine.
The other question is, can you also check what the original transmission code is? I have an S20, but some people say it needs to be S40.
Our Dutch car website (autoweek.nl) says that the top speed should be limited at 177km/h, which is also the maximum i can drive with the car.
If the original one is indeed S20, and I have S20.. can someone tell me what is the difference between me S20 and example an S20 from an D16Z6 or D15B7.. because they look the same to me.
And if I buy a S20 from a D16Z6.. how do I know that it's really one from an Z6 and not an other model? Anyway to find that out.
The 1.4S is the car the engine came from, the coupe is what i should have.
Honda Civic 1.4i S
Engine: 90hp / 124nm
Weight: 940kg
Top speed: 177km/h
10.8s to 100km/h
Honda Civic Coupé 1.5 LSi
Engine: 102hp / 133nm
Weight: 998kg
Top speed: 190km/h
9,9s to 100km/h
It sounds kinda strange to me that a civic Coupe, with 12hp more, 9nm more, 58 kilo's heavier still is faster to the 100 and heigher top speed.
So if anyone can help me out that is the difference between those two engines and gearboxes? And i don't think it's just aerodynamics that makes the civic coupe faster.
Thanks and happy easter
04-19-2014, 10:34 AM
#2
Re: Question about Civic 1.4S vs Coupe 1.5i
Off the top of my head, I believe the S20 is the smaller bearing CX/DX/LX tranny with the taller final drive for fuel economy by slower acceleration.
I think, but could be wrong, the S40 is the Si or Z6 tranny, should have a P20/B000 circle casting stamp on it. It has a bigger bearing set in it and shorter final drive for less fuel economy but much faster acceleration.
For 92-95 d-series manual transmissions it's about that casting code circle. The P20/A000 is fuel economy orientated while the P20/B000 is the performance orientated transmission. This is talking about the USDM transmission though. Other markets might be different.
I think, but could be wrong, the S40 is the Si or Z6 tranny, should have a P20/B000 circle casting stamp on it. It has a bigger bearing set in it and shorter final drive for less fuel economy but much faster acceleration.
For 92-95 d-series manual transmissions it's about that casting code circle. The P20/A000 is fuel economy orientated while the P20/B000 is the performance orientated transmission. This is talking about the USDM transmission though. Other markets might be different.
04-19-2014, 03:48 PM
#4
B*a*n*n*e*d
Re: Question about Civic 1.4S vs Coupe 1.5i
Off the top of my head, I believe the S20 is the smaller bearing CX/DX/LX tranny with the taller final drive for fuel economy by slower acceleration.
I think, but could be wrong, the S40 is the Si or Z6 tranny, should have a P20/B000 circle casting stamp on it. It has a bigger bearing set in it and shorter final drive for less fuel economy but much faster acceleration.
For 92-95 d-series manual transmissions it's about that casting code circle. The P20/A000 is fuel economy orientated while the P20/B000 is the performance orientated transmission. This is talking about the USDM transmission though. Other markets might be different.
Attachment 362457
I think, but could be wrong, the S40 is the Si or Z6 tranny, should have a P20/B000 circle casting stamp on it. It has a bigger bearing set in it and shorter final drive for less fuel economy but much faster acceleration.
For 92-95 d-series manual transmissions it's about that casting code circle. The P20/A000 is fuel economy orientated while the P20/B000 is the performance orientated transmission. This is talking about the USDM transmission though. Other markets might be different.
Attachment 362457
04-19-2014, 05:25 PM
#5
Re: Question about Civic 1.4S vs Coupe 1.5i
04-20-2014, 03:27 AM
#6
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Re: Question about Civic 1.4S vs Coupe 1.5i
S20 means '92 - '95 tranny, nothing more. S40 means '96 - '00, nothing more.
The A000 or B000 stamp next to the fill plug is what tells the tale.
A000 = small bearing tranny, long gears, poor acceleration.
B000 = big bearing tranny, generally short geared with good acceleration (depending on what was available in your country the equivalent of the US HX model will have a big bearing tranny with long gears, not all countries got this model however, for example Canada did not) If you get a an S20 B000 transmission you're guaranteed it's a short geared Si model though, it's only the S40s that aren't a sure thing.
As far as the engine goes I was under the impression all those 1.4Ls used SFI (Simplified Fuel Injection) they use 4 injectors but cylinders 1 and 4 and 2 and 3 fire together. The distributor and a bunch of other stuff is totally different, even the ECU is a 2 plug setup as opposed to the standard 3 plug setup.
The A000 or B000 stamp next to the fill plug is what tells the tale.
A000 = small bearing tranny, long gears, poor acceleration.
B000 = big bearing tranny, generally short geared with good acceleration (depending on what was available in your country the equivalent of the US HX model will have a big bearing tranny with long gears, not all countries got this model however, for example Canada did not) If you get a an S20 B000 transmission you're guaranteed it's a short geared Si model though, it's only the S40s that aren't a sure thing.
As far as the engine goes I was under the impression all those 1.4Ls used SFI (Simplified Fuel Injection) they use 4 injectors but cylinders 1 and 4 and 2 and 3 fire together. The distributor and a bunch of other stuff is totally different, even the ECU is a 2 plug setup as opposed to the standard 3 plug setup.
04-20-2014, 04:19 AM
#7
Honda-Tech Member
Thread Starter
Re: Question about Civic 1.4S vs Coupe 1.5i
S20 means '92 - '95 tranny, nothing more. S40 means '96 - '00, nothing more.
The A000 or B000 stamp next to the fill plug is what tells the tale.
A000 = small bearing tranny, long gears, poor acceleration.
B000 = big bearing tranny, generally short geared with good acceleration (depending on what was available in your country the equivalent of the US HX model will have a big bearing tranny with long gears, not all countries got this model however, for example Canada did not) If you get a an S20 B000 transmission you're guaranteed it's a short geared Si model though, it's only the S40s that aren't a sure thing.
As far as the engine goes I was under the impression all those 1.4Ls used SFI (Simplified Fuel Injection) they use 4 injectors but cylinders 1 and 4 and 2 and 3 fire together. The distributor and a bunch of other stuff is totally different, even the ECU is a 2 plug setup as opposed to the standard 3 plug setup.
The A000 or B000 stamp next to the fill plug is what tells the tale.
A000 = small bearing tranny, long gears, poor acceleration.
B000 = big bearing tranny, generally short geared with good acceleration (depending on what was available in your country the equivalent of the US HX model will have a big bearing tranny with long gears, not all countries got this model however, for example Canada did not) If you get a an S20 B000 transmission you're guaranteed it's a short geared Si model though, it's only the S40s that aren't a sure thing.
As far as the engine goes I was under the impression all those 1.4Ls used SFI (Simplified Fuel Injection) they use 4 injectors but cylinders 1 and 4 and 2 and 3 fire together. The distributor and a bunch of other stuff is totally different, even the ECU is a 2 plug setup as opposed to the standard 3 plug setup.
Thanks for the gearbox info, the engine and obd info is not correct, d14a2 is multi point injection and obd1
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04-20-2014, 07:34 AM
#8
Re: Question about Civic 1.4S vs Coupe 1.5i
Did the HX big bearing, long geared tranny get the steel shift forks or the weaker cast aluminum ones the 92-95's ended up with?
04-20-2014, 02:28 PM
#9
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Re: Question about Civic 1.4S vs Coupe 1.5i
Steel, All S40s have steel forks. The steel forks aren't really stronger, they just bend instead of break and the 3rd/4th fork wears something awful. To be totally honest I prefer the aluminum forks myself and so do some of the other guys that build D-series trans.
04-20-2014, 03:05 PM
#10
Re: Question about Civic 1.4S vs Coupe 1.5i
The D14A2 uses standard PGM-FI, with a caveat - it uses the P1J ECU, which is an OBD2 ECU with OBD1 plugs. It's the D14A4 that uses DPFI.
The D15B7 is the stock motor for the 92-95 EDM LSi Coupe. It's the same motor we have in the US in the 92-95 DX/LX. It uses the P06 ECU. It is also mated to the same S20 A000 transmission, small bearing, tall gears.
Why does it seem odd that a more powerful motor would get to speed faster, and have a higher top speed? That's how cars work...
The D15B7 is the stock motor for the 92-95 EDM LSi Coupe. It's the same motor we have in the US in the 92-95 DX/LX. It uses the P06 ECU. It is also mated to the same S20 A000 transmission, small bearing, tall gears.
Why does it seem odd that a more powerful motor would get to speed faster, and have a higher top speed? That's how cars work...
04-20-2014, 06:22 PM
#11
Re: Question about Civic 1.4S vs Coupe 1.5i
04-21-2014, 03:30 AM
#12
Honda-Tech Member
Thread Starter
Re: Question about Civic 1.4S vs Coupe 1.5i
The D14A2 uses standard PGM-FI, with a caveat - it uses the P1J ECU, which is an OBD2 ECU with OBD1 plugs. It's the D14A4 that uses DPFI.
The D15B7 is the stock motor for the 92-95 EDM LSi Coupe. It's the same motor we have in the US in the 92-95 DX/LX. It uses the P06 ECU. It is also mated to the same S20 A000 transmission, small bearing, tall gears.
Why does it seem odd that a more powerful motor would get to speed faster, and have a higher top speed? That's how cars work...
The D15B7 is the stock motor for the 92-95 EDM LSi Coupe. It's the same motor we have in the US in the 92-95 DX/LX. It uses the P06 ECU. It is also mated to the same S20 A000 transmission, small bearing, tall gears.
Why does it seem odd that a more powerful motor would get to speed faster, and have a higher top speed? That's how cars work...
To the rest: its a A000 gearbox, so I will try to find a B000 gearbox
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