which one is a better motor all info. is very helpful trow in your inputs about each motors from good to bad the more information the better thanks.

 

H22A - It has more support than the F20B I would say. What car are you trying to put it in?

 

F20B, no doubt.

-Higher revving
-Basically the same as H22a
-Higher compression
-Iron sleeves, not FRM crap
-Cams are the Prelude Type-S cams
-Same HP rating just slighty lower torque, but come on its in a civic, how much torque do u need?

- got this motor, and it has plenty of torque!! Believe me wheelspin is crazy in 1st,2nd and 3rd just by punching the throttle.

They are both great motors, I just like the rev happy F20b, it has the best of H/F series motors.

-Brax

 

Hey I have an idea, maybe the OP should make a poll on both hehe, it would be nice to see the outcome hmmmm.

I did not know the F20B had iron sleeves - I guess that would be the way to go if you want FI as well - I just noticed its a tad bit more than the H22A...

 

BTW, I just found this interesting F20B thread a minute ago - you should read this - quite interesting ...

https://honda-tech.com/zerothread?id=1057251

 

IMHO you're going to want to go with the H22a

There is a lot more support for it, the peak power will be able the same as an F20B and honda's seem to work well with a r/s ratio in the 1.58 area


D15 r/s = 1.5857988165680473372781065088757
B18C r/s = 1.5814220183486238532110091743119
H22 r/s = 1.5766262403528114663726571113561

there's a good amount of aftermarket support for the h22. the only problem you'll run into with the F20B is finding valves and finding replacement con rods.

I went with the F20B because i found a real good deal on it. It's going to be a lot more difficult to swap the F20B into an obd1 vehicle thought, not that it's not possible it's jsut more difficult.

Both are good motors, I built my trans first which has very close-ratio gears and went with an engine that would mate will with my gearing. But for most stock gearboxes I think that the H22 is going to have a more usable torque band.

The fact that the F20B has type S cams is debatable IMO. Jdogg says that the MT version uses the same cams as the stock h22a4, which is why the redline on the stock engine is relatively low.

 

Does the F20b utilize saturated injectors seeing how it is obd2?

 

thanks for all the info i will be dropping it in a ek i dont know when i just want to find all the info that i may need before i do the swap but thanks to everybody that helped

 

WHICH ONE WILL YOU PICK FOR A SWAP IN A EK. NOT IN THE POLL BUT WHICH PLATE IS BETTER EVOLUTION OR QUARTER SPORT TO USE

 

The f20b does use saturated injectors.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bense &raquo;</TD></TR><TR><TD CLASS="quote">IMHO you're going to want to go with the H22a

There is a lot more support for it, the peak power will be able the same as an F20B and honda's seem to work well with a r/s ratio in the 1.58 area


D15 r/s = 1.5857988165680473372781065088757
B18C r/s = 1.5814220183486238532110091743119
H22 r/s = 1.5766262403528114663726571113561

there's a good amount of aftermarket support for the h22. the only problem you'll run into with the F20B is finding valves and finding replacement con rods.

I went with the F20B because i found a real good deal on it. It's going to be a lot more difficult to swap the F20B into an obd1 vehicle thought, not that it's not possible it's jsut more difficult.

Both are good motors, I built my trans first which has very close-ratio gears and went with an engine that would mate will with my gearing. But for most stock gearboxes I think that the H22 is going to have a more usable torque band.

The fact that the F20B has type S cams is debatable IMO. Jdogg says that the MT version uses the same cams as the stock h22a4, which is why the redline on the stock engine is relatively low.</TD></TR></TABLE>

I agree... If your looking at a performance aspect with the 2 engines 92-95 JDM H22A is the engine to go with. The F20B is more for the unique wow factor of a rare'r engine.

F20B (Blue Top) with bolt ons I/H/E will typically make 160 whp and 140 ft lbs of torque.

JDM H22A (Black Top) with bolt ons I/H/E will typically make 180 whp and 150 ft lbs of torque.

That's a difference of 20 whp and 10 ft lbs of torque right off the bat. In some cases the F20B (Blue Top) will cost more. For performance it's kinda funny how it cost more then the JDM H22A (Black Top). Pretty much have lil brother and big brother. As far as the 2 making the same peak power not true.

True F20B (Blue Top) is debatible if it really has similar cam specs or same specs as the Type S. By the numbers I have seen of the F20B if they were more similar to the jdm H22 I would then agree it has some similar Type S spec cams also the stock redline tells you something as well.

The H22 definety does have the aftermarket, The F20B (Blue Top) is almost non existant...I would hate to spin a rod bearing etc having to rebuild because that crank and rods are non exstance and would cost a bundle...valves I believe are non existant either (1mm smaller then h22)... the thing that only catches my eye about it is the non use of FRM sleeves and that nice different (Blue Top).

A member on here had a F20B (Blue Top) and I remember how hard of a time he had to get or find replacment parts, crank,rods,valves, it was easier to purchase a whole new longblock...

 

stock hp on f20b

 

f20b does NOT have type S cams

it makes the same peak hp as an equally rated h22 (keep in mind that most f20b long blocks you find are AUTOMATIC and are only rated at 180hp, not 200 like the MT) the AT f20b has the same cams as the auto h22a4 (remember they were rated at 185) and a smaller throttle body than any of the h22's. if you are going to be replacing all this it dosnt matter, but if you are leaving it stock your best bet is to get an h22

 

it does have type s cams on the sir-t motor stock throttle body is 66mm yes the auto is no greater at 180hp but the sir-t f20b does come with dual valvetrain i know i have one with 5 speed lsd.i netted 190 whp on shitty headers and exhuast with a/f tuning not even a decent intake


Modified by f20bej1 at 8:47 AM 6/20/2007


Modified by f20bej1 at 8:48 AM 6/20/2007

 

there is no way that thing has a 68mm tb stock

 

i have an auto and a 5spd f20b... the auto has a 58mm tb, the 5spd has a 62. the auto's have dual valve spring too...

the 5spd has the same cams as every other jdm h22/or the usdm 00-01 5spd preludes.

my buddies obd1 jdm h22 made 196hp with an obx header... so whats your point.

 

that means my f20b is an auto version with 180 hp then. So Jdogg, are you saying that the MT and AT have the same valve springs?


So the only difference is the cams + tb i suspect

 

hey bense quick question i want to put a h2b in my EK what do i do as far as the distributor which one do i use and if their is any wiring involved please let me know thanks man

 

i dont know if they have the exact same valvetrain.. it APPEARS the same, soooo yeah..

 

Man if I get to work and find out mines an auto Im gonna be pissed

 

F20b ALL DAY!

its like a a big b16a2

its my favorite honda motor outside of a K20a Type R

 

Yeah so I got a auto too . Half tempted to bitch at H motors for false advertising

 

ok which one is better or are they the same H22 auto or H22 manual let me know thanks

 

auto rated at less Hp as stated earlier.

 

instead of using the eliminator kit can u just pull off both gears and plug them or no and did the eliminator kit come with good instructions on how to put it on