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TBH, I really have no idea what engine is better between the H22 and B18. I just get frustrated because it seems too many people here clown on the B18, "It's not a Prelude motor this...It's worse than the H22 that..."

i like the swap...
it's better than the b20, by far...

as for the superiority statement, you can run alot more boost on a stock b-series vtec than an h22, and as noted, aftermarket support is far superior...

and if it fits better with more ground clearance? yes please.

good luck!
 

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yeah me too

The B18 was built using lessons learned from the engines before it, including the B20/21. It may not have happened to be originally available in a car that had "prelude" on the trunklid, but it's a far superior engine to the B20. Up against an H22? I don't know. But shit if it can fit in a 3g, go for it :D I just like seeing some variety.
 

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TBH, I really have no idea what engine is better between the H22 and B18. I just get frustrated because it seems too many people here clown on the B18, "It's not a Prelude motor this...It's worse than the H22 that..."


Just as I thought.....

B18C1 is an incredible engine.... They can hold more boost... but. Getting to that point you run into pre mature ware of engine internals... Like anything.. push it beyond its limits and it'll ware out quicker.. not bashing it. Just making a statement.


An H22 is a great work horse...... pistons aren't an issue. it's the cylinder walls... but Mahle is offering some great setups for H22's.... There is no replacement for displacement... And don't say forced induction or Nitrious please...



Anywho anymore progress pics please?



 

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Discussion Starter · #46 · (Edited)
CRX? lol those pics of the CRX bay are of my best friend Dave's CRX with a B18 swap. Hes giving me a hand with my swap in return for helping him swap a transmission in his after he threw 2nd gear. Pay close attention and you can tell which are the lude and which are the Prelude. Keep in mind both are faded red lol

Mine are with the f'd up header and oil pan.


 

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Just as I thought.....

B18C1 is an incredible engine.... They can hold more boost... but. Getting to that point you run into pre mature ware of engine internals... Like anything.. push it beyond its limits and it'll ware out quicker.. not bashing it. Just making a statement.


An H22 is a great work horse...... pistons aren't an issue. it's the cylinder walls... but Mahle is offering some great setups for H22's.... There is no replacement for displacement... And don't say forced induction or Nitrious please...



Anywho anymore progress pics please?
One thing I will say though, the purr of an H22 is beautiful when the throttle is opened up. Well, so is a B18C but the H22 sounds beefier IMO.

Daily driven N/A H22 FTW.
 

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yeah 5500rpm in 2nd gear in my buddy's 5g is what converted me to the cause :D Granted I don't have any sort of VTEC right now, but that one moment knocked all the non-hondas off my list of potential new rides.
 

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One question. Can the CRVTEC can go in the same way as the B18? If so that would be cool. It just wouldn't feel right to me dropping below 2 litres in the lude.

Awesome job tho bro.
Course it can :) the CRV's B20B/Z is dimensionally identical in size to the B18A/B blocks. Just fyi though:
B20A5 = 1958cc
B20B/B20Z = 1972cc
B18A/B= 1834cc
B18C = 1797cc
B16A = 1595cc

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So technically we don't come stock with a full two liters of displacement :lol: we're just shy of it in fact. Sadly, a "1.8" LS integra has in fact only .124 liters less than us :wzbigcry:
 

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ok, dropping below 20 in the engine code wouldn't feel right.

lol, I know we're not a full 2 litres. But 5.0 sounds so much better than 4.9(knock on mustang owners)

But B18's make that unGodly Bzzzzzzzzzzzzzzzzzzzzzzzz sound. If this works I may switch my plans up a bit. since I'll be runnin a megasquirt box, whenever my stuff comes together, Wiring won't be such a big problem.
 

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Course it can :) the CRV's B20B/Z is dimensionally identical in size to the B18A/B blocks. Just fyi though:
B20A5 = 1958cc
B20B/B20Z = 1972cc
B18A/B= 1834cc
B18C = 1797cc
B16A = 1595cc

--------------------

So technically we don't come stock with a full two liters of displacement :lol: we're just shy of it in fact. Sadly, a "1.8" LS integra has in fact only .124 liters less than us :wzbigcry:
We still have torque tho:Rock:
 

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Only issue with a B20Z/b is the cylinder walls....... You can make decent power stock... but it wont be enough trust me.

I'd say go LSVTEC, drop pure B18Cr goodness and stage 2 cams and valvetrain upgrade... you'll see 200+whp easy.

Now the B18B is a reworked B18A...(better cams, manifold, exhaust manifold) And those numbers are for the JDM model kalm....

Our b20's are 142hp and 135tq for the JDM model...



 

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God I still wish I had all the pics from the old hondaprelude.com site....

There was a guy that had a silver 3rd gen with a GSR motor in it. Was nice, and fit but it was just weird seeing the motor sitting straight up.... o_0

But if you could lean it at the same angle as our b20's that would be one heck of a swap. :)

Good Luck man hope to see the progress.
 

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Now the B18B is a reworked B18A...(better cams, manifold, exhaust manifold) And those numbers are for the JDM model kalm....

Our b20's are 142hp and 135tq for the JDM model...
lol ooh my bad- what are the specs for the USDM B18B1?:oops:
 

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You do that I believe you may have coolant/oil flow issues.
Not to mention axle alignment problems. You're pretty much stuck mounting a B18 the way it's supposed to go.
 

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Discussion Starter · #60 · (Edited)
The B18C at redline is so much more of a raw noise than the H22. It just sounds meaner. Sounds like if you get 100rpms more its gonna break all hell loose. And as for the engine sitting upright, mine is at about half the angle of the original B20.

And also, dont worry about losing 0.2 liters... you gain so much more including an extra cam (mine was the B20a3) and the engine actually LOOKS larger than the B20. And no matter what engine you put in a Prelude... its still a Prelude an Im sure my lude is going to thank me after it toasts a few CRX's and EG's =)
 
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