88-91 Civic Engine Swap

[huffer]

Well bring on the laughter.


Just curious if anyone out there knows of a mount kit per say to convert over the earlier years of the 88-91 civics to be able to say utilize a h22/h23 etc....????

I have seen from Enjo they make a kit for the 92 and up civics but I could not find anything earlier. Just thought I would drop a post to the gurus on the site and see what comes back.

Thank-ya

[rage2]

There are B series mounts, but I don't think there are H series mounts for the EF's.

[ls/vtec-crx]

Nobody makes it because there are to many clearance problems. One of the problems is that if you get it to clear the hood it will sit too low and the oil pan and header will be exposed to hit bumps. And some of the frame has to be cut away, and there was an issue with the radius arms hitting so they had to be bent. And way too nose heavy but good for straight line power.

[Deetz]

For all the trouble it would be to get a H22 engine in, you'd be much better off getting B18C block, adding a 2.2L stroker kit, and instalation and wiring would be a breeze.

[redx2nv]

Originally posted by Deetz
For all the trouble it would be to get a H22 engine in, you'd be much better off getting B18C block, adding a 2.2L stroker kit, and instalation and wiring would be a breeze.

2.2l stroker kit? do you mean 2.0L?

[Deetz]

Well you can do that to, but crower sells a kit that bumps it to 2.2L as well.

[rage2]

Actually, you can go all the way up to 2.3L on the B series with the crower kits.

[redline]

those kits are great if you 5-10G to spend on a crank and some rods.

Anything over 2.0L is drag only and plan on a lot of rebuilds.

[rage2]

Originally posted by redline
Anything over 2.0L is drag only and plan on a lot of rebuilds.
Why do you say that?

I see a good tech debate coming up.... :).

[redline]

two words:

rod ratio

[ls/vtec-crx]

Originally posted by redline
those kits are great if you 5-10G to spend on a crank and some rods.



They actually aren't that bad in price. It's about $3500.00 cdn for a crower stroker kit and you can choose from an 81mm/1.90L to a 87mm/2.26L but then you would have still buy sleeves and get it machined and all that good stuff. Block alone would cost about $5500.00.

[rage2]

Originally posted by redline
two words:

rod ratio
You've been reading too much H-T :).

Have you ever wondered what the S2000 motor (redlines at over 9000rpm), bone stock, what the rod ratio is? :)

Here's a hint, it's not near optimal hehe.

[redline]

Originally posted by rage2

You've been reading too much H-T :).

Have you ever wondered what the S2000 motor (redlines at over 9000rpm), bone stock, what the rod ratio is? :)

Here's a hint, it's not near optimal hehe.

so when are you building one? I read H-T about once a month now, but this comes from people that know what they are talking about! It is not a long life thing, that is why not very many people do it!

[AutodreamMarvin]

ghetto fab.
put in a prelude(b20a) crank and rods.
mmm 95mm stroke.
get some good rod bearings(stock b20a bearings eat a nut) and rings while you are at it.
1.5:1 r/s ratio.
how long do you think that will last?

shit, for that much work you might as well just get a b20b/z and put a VTEC head on it with new bottom end internals. in the end it'll cost about the same(as getting a stroker), and the crvtec will last longer(that is somewhat debateable) and/or make more power, depending on what you did.

allan>isn't stock stroke longer than that on a b18c1? how is 81mm stroke=1.9L?

[rage2]

Originally posted by redline
so when are you building one? I read H-T about once a month now, but this comes from people that know what they are talking about! It is not a long life thing, that is why not very many people do it!
hehe I just drive a Civic DX man :).

R/S ratio really only applies if you're planning on running 10,000rpm+. The "theory" is that hondas make low torque with small displacement, so to get HP you need to spin 'em up high, to spin 'em up high reliabliy, you need a good R/S ratio. For anything under 10k rpms, it doesn't matter too much, which is why I brought out the S2000 example... because r/s ratios really doesn't matter ON THE STREET :).

Now, here's what I think of the different displacement options on the B series.

With the 95mm stroker kits, they're not designed to rev high, just like what you said about R/S ratios. Perfect for the street. With the 87mm bore, the walls are pretty thin, so it can't make huge power. Again, perfect for pump gas street duty :).

Now, if you're going to build a race motor, displacement doesn't matter, because you have access to super high octane fuels. In those cases, you can live with lower displacement and super high boost, rev high, thick sleeve walls, etc... the recipe for a great race motor with big power.

So thats why IMO, the 2.3L stroker kits are great for the street and not the track. Sure they're weaker, but they're only going to make 350hp on the street, not 600+ like a race motor.

[88CRX]

Originally posted by rage2

only going to make 350hp on the street, not 600+ like a race motor.

only eh :D


i want 200 whp out of a b-series eventually and ill be happy

[rage2]

200whp out of a b series? Dude, that's not hard.

[88CRX]

Originally posted by rage2
200whp out of a b series? Dude, that's not hard.

supercharger b16 :dunno: why not keep it simply?

[rage2]

Originally posted by huffer
Just curious if anyone out there knows of a mount kit per say to convert over the earlier years of the 88-91 civics to be able to say utilize a h22/h23 etc....????

I have seen from Enjo they make a kit for the 92 and up civics but I could not find anything earlier. Just thought I would drop a post to the gurus on the site and see what comes back.

Thank-ya

Woop.... look what I stumbled on...

http://jdmhondaparts.com/placeracing.htm

H series mount for the 88-91 EF civics/CRX.

[88CRX]

http://www.honda-tech.com/zerothread?id=711900

[DUBBED]

that engine looks HUUUUUUUGE in that rex

[vtec.stz]

i dont see why u dont just use a b18c or type r motor they put out plenty of powerand there weight to power ratio is perfect :thumbsup: