engine differences

[cb7_wagon]

supposedly the f22's in the 93 accord ex's had more power than the non ex's and more power than previous generations. Are the power improvements in the engine? or are they all in the intake,injectors and computer?

[dj_ender]

supposedly the f22's in the 93 accord ex's had more power than the non ex's and more power than previous generations. Are the power improvements in the engine? or are they all in the intake,injectors and computer?

Another one of these threads???

OP, here ya go. http://en.wikipedia.org/wiki/Honda_F_engine

[Joey GT-R]

You could have easily researched the issue, but I see you chose not to.... Th differences are in the header, camshaft, and intake manifold design. So why does that matter to you?

[evil_demon_01]

^^ The OP probably doesn't know what engine it is in the first place, and the link you posted names EVERY single F series engine ever made.


OP - From Wiki

F22A6: 140 hp (104.40 kW) @ 5600 rpm. The F22A6 is the same as the F22A1 except for a slightly more aggressive camshaft, a better flowing cast exhaust manifold, a different more aggressively tuned ECU (PT6), and a different intake manifold that utilizes IAB's and also has a bigger plenum. The F22A6 also has a windage tray in the oil pan, and stiffer valve springs to accommodate the more aggressive camshaft.

[dj_ender]

^^ The OP probably doesn't know what engine it is in the first place, and the link you posted names EVERY single F series engine ever made.


OP - From Wiki

F22A6: 140 hp (104.40 kW) @ 5600 rpm. The F22A6 is the same as the F22A1 except for a slightly more aggressive camshaft, a better flowing cast exhaust manifold, a different more aggressively tuned ECU (PT6), and a different intake manifold that utilizes IAB's and also has a bigger plenum. The F22A6 also has a windage tray in the oil pan, and stiffer valve springs to accommodate the more aggressive camshaft.

Fine...

Specifications
Bore × Stroke: 85.0 × 95.0 mm
Displacement: 2156 cc
Valve configuration: SOHC, 16 valves, non-VTEC
Compression ratio: 8.8:1
Max power:
F22A1: 125 hp (93.21 4 kW) @ 5200 rpm. (Accord Dx,Lx). The 1992–1996 Prelude S had a F22A1 but because of a different more aggressively tuned ECU (P12), the power output was 135 hp (100 kW).
F22A3: 150 hp (110 4 kW) European domestic market engine, with more power due to less strict emission standards.
F22A4: 130 hp (96.94 kW) @ 5200 rpm. (Accord Ex) The F22A4 is the same motor as the F22A1 but it has slightly more power due to a tubular designed header and slightly bigger exhaust piping.
F22A6: 140 hp (104.40 kW) @ 5600 rpm. The F22A6 is the same as the F22A1 except for a slightly more aggressive camshaft, a better flowing cast exhaust manifold, a different more aggressively tuned ECU (PT6), and a different intake manifold that utilizes IAB's and also has a bigger plenum. The F22A6 also has a windage tray in the oil pan, and stiffer valve springs to accommodate the more aggressive camshaft.
F22A7: 140 hp (104.40 kW) @ 6101 rpm
Max torque:
F22A1: 137 lb·ft (186 N m) @ 4000 rpm
F22A4: 142 lb·ft (193 N m) @ 4000 rpm
F22A6: 142 lb·ft (193 N m) @ 4500 rpm
F22A7: 145 lb·ft (198 N m) @ 5000 rpm

[cb7_wagon]

I am looking at longblocks, My car has 247,000 on it and Id like to have a spare engine ready to go. I have also been looking into doing a manual transmission swap
I have a 93 ex wagon
btw thanks for the quick response, I apologize for not searching first

[deevergote]

All US-market 1990-1993 Accords have an F22A engine. The F22A engines themselves are essentially the same. The differences are in the parts bolted on.
The F22A1 makes 125hp and comes in the LX and DX models.
The F22A4 makes 130hp, and is found in the 90-91 EX ONLY. The extra 5hp comes from the tubular exhaust manifold (rather than the cast A1 piece.) Everything else is the same as the F22A1.
The F22A6 comes in the 91 and 93 SE, as well as all 92-93 EX models. The F22A6, as posted above, makes 140hp. This increase over the F22A1 is due to the exhaust manifold (cast, but a better design), intake manifold (with IAB system). camshaft (with stiffer valve springs), and ECU. Other less important differences include a windage tray in the oil pan, and an oil cooler (on automatic models.)

The F22A6-equipped CBs have sunroofs and antilock brakes... so that extra power comes with extra weight as well.


If you're simply replacing your engine, don't worry too much about which one you get. You can convert one F22A to another easily enough... at least with the parts that make the majority of the power difference.

[Taurians' Ryde]

All US-market 1990-1993 Accords have an F22A engine. The F22A engines themselves are essentially the same. The differences are in the parts bolted on.
The F22A1 makes 125hp and comes in the LX and DX models.
The F22A4 makes 130hp, and is found in the 90-91 EX ONLY. The extra 5hp comes from the tubular exhaust manifold (rather than the cast A1 piece.) Everything else is the same as the F22A1.
The F22A6 comes in the 91 and 93 SE, as well as all 92-93 EX models. The F22A6, as posted above, makes 140hp. This increase over the F22A1 is due to the exhaust manifold (cast, but a better design), intake manifold (with IAB system). camshaft (with stiffer valve springs), and ECU. Other less important differences include a windage tray in the oil pan, and an oil cooler (on automatic models.)

The F22A6-equipped CBs have sunroofs and antilock brakes... so that extra power comes with extra weight as well.


If you're simply replacing your engine, don't worry too much about which one you get. You can convert one F22A to another easily enough... at least with the parts that make the majority of the power difference.

Interesting....first time I've read about the F22A6 having an oil pan windage tray. It’s to reduce the aeration of the oil from the crank to allow oil to be sent from the oil pump more efficiently right ?

Also...was it just the auto F22A6’s that had the oil coolers ?

Is the oil cooler specific to the engine type or model type ?

[Jaysson_2012]

So my 92 EX would have a F22A6?

[deevergote]

Interesting....first time I've read about the F22A6 having an oil pan windage tray. It’s to reduce the aeration of the oil from the crank to allow oil to be sent from the oil pump more efficiently right ?

Also...was it just the auto F22A6’s that had the oil coolers ?

Is the oil cooler specific to the engine type or model type ?

The windage tray is either for the purpose you stated, or to keep oil from splashing into the path of the crankshaft, causing resistance... or possibly both. Either way, it's fairly unnecessary... but it's there.

As for the oil cooler, that's something I just recently learned about myself. I THINK I'm correct in saying that... I didn't double check before posting it (which is unlike me...) The only automatic CB7s I've ever dealt with have been DX models, so I have no experience with the oil cooler. I just recently read on here about it. As far as I know, it was just the auto F22A6, yes.

So my 92 EX would have a F22A6?

Yes, unless it has been replaced. All 92-93 EX models have the F22A6, as well as all SE models (the SE was the first model to get the F22A6, back in 1991.)