Hey Guys,

I race circle track 4 cylinders and today I picked up a rolling 1990 Honda Crx HF shell. Well back at the My dads shop they got a junker 93 accord with F22 Sohc VTEC in it and we were thinking about swapping it into the CRX.

How difficult is this swap?? and also is there any right ups on how to do it and the problems you'll run into?? and how obvious do you think it'll be that this engine isn't the stock one? (besides the VTEC symbol which we could grind off)

Any suggestions on better engines to swap into it (or more stock lookin engines)??

we also have an 86 civic hatchback si with the 1.5 FI 12 Valve but i looked that up and it only has 91 hp and 93 tq compared to the F22's 147 or so Hp and about equivalent torque.

Also I was wondering is there any way to put a stock crx valve cover (e.g. a D16 Si 108 hp engine valve cover) on a vtec head??

Any feedback would be appreciated.

Thanks

Jeff

 

almost the same as a h swap search around you will find info.

 

redzcstandardhatch has a f22 with a d16 tranny

 

check this site out. h and f series are the same. its pretty detailed. i have been researching alot on doing a h series crx so heres a site i got a lot of info from and has helped me.

http://www.explicitspeedperfor....html

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CircleTracker09 &raquo;</TD></TR><TR><TD CLASS="quote">Hey Guys,

I race circle track 4 cylinders and today I picked up a rolling 1990 Honda Crx HF shell. Well back at the My dads shop they got a junker 93 accord with F22 Sohc VTEC in it and we were thinking about swapping it into the CRX.

How difficult is this swap?? and also is there any right ups on how to do it and the problems you'll run into?? and how obvious do you think it'll be that this engine isn't the stock one? (besides the VTEC symbol which we could grind off)

Any suggestions on better engines to swap into it (or more stock lookin engines)??

we also have an 86 civic hatchback si with the 1.5 FI 12 Valve but i looked that up and it only has 91 hp and 93 tq compared to the F22's 147 or so Hp and about equivalent torque.

Also I was wondering is there any way to put a stock crx valve cover (e.g. a D16 Si 108 hp engine valve cover) on a vtec head??

Any feedback would be appreciated.

Thanks

Jeff</TD></TR></TABLE>

I don't know how on earth you'd manage to get a SOHC 1.6 valve cover over that. The plug holes wouldn't like up, not the same size head, it'd be a real pain if you could manage to pull it off.

 

an f22 vtec?... from a 93 accord?? eh....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by druciferrr &raquo;</TD></TR><TR><TD CLASS="quote">an f22 vtec?... from a 93 accord?? eh....</TD></TR></TABLE>

My first thought too.

 

Thanks for the sites and insight.

And what do you mean by eh.. about a f22 vtec? are you implying it's a difficult swap? or the engine isn't the best?

And I was also contemplating swapping in a d16z6 or a D15B. Is there any way that a stock valve cover (e.g. the valve cover on crx si straight D16 108 hp engine) will fit on either of these engines??

Thanks a lot

Jeff


Modified by CircleTracker09 at 8:18 PM 7/16/2007

 

a stock si valve cover will not fit onto a d16z6 or a d15b because the spark plug tubes are on the opposite side of the head.

 

the f series is an interesting engine because it makes the same hp/tq in a sohc form, and can be had for usually a very reasonable price.

you can use a bisimoto f2d adapter plate and run the f22 on a d-series cable tranny in the hf shell.

also if you have any doubt what the motor is capable of look up some of what hes accomplished.

the problem is mounting the engine and allowing it to fit for an ed/ef chassis. its not the greatest fit and there are no aftermarket mounts to allow bolt in mounting.

you must weld the mounts yourself and notch the frame in places.

there was a thread about this exact swap a few weeks back of a guy whos performing this swap, it looks a bit challenging but the end result should be quite a torque monster with some bolt ons and a tune.

honestly, how much fabrication time do you have to get this car ready, and have you even welded mounts before and had axles made?

also, what are the regulations for your racing event in reguards to swaps/modifications?

anything goes??

you must be careful if they inspect your car and check for the block stamp and see f22 instead of d16, they may possibly have that information at a track inspection...

you also mentioned an 86 si hatch, the f series is a pretty tall motor, and that engine bay is tiny. you could make it happen, i have seen images of h22 swapped first gen crxs, so it does fit but its safe to say the modding would be somewhat extensive to make that happen as well. the header clearance might be a a bit dicey too, although that is purely speculation.

obviously you know that 86 is going to be a straight weld job as well, but being an si model you at least have a decent fuel pump and the proper lines to run mpfi motors, so thats a bonus. hasport makes some b-series mounts you might be interested in, also the early integra motors (d16a1) are more of a bolt in solution for a nice gain on that chassis as well.

many would argue in cars this light some nice high end power is enough, though some always prefer the low end.

as with anything, personal preference and difficulty are going to be the major deciding factors.

pz

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CircleTracker09 &raquo;</TD></TR><TR><TD CLASS="quote">Hey Guys, Well back at the My dads shop they got a junker 93 accord with F22 Sohc VTEC in it and we were thinking about swapping it into the CRX.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CircleTracker09 &raquo;</TD></TR><TR><TD CLASS="quote">And what do you mean by eh.. about a f22 vtec? are you implying it's a difficult swap? or the engine isn't the best?</TD></TR></TABLE>

90-93 Accords didn't come with V-TEC. So if it is a F22B2 from a 94-97 Accord EX, your 93 Accord has already been swapped.

 

[b] I used the Innovative Mounts kit and it worked for me; the only thing is that you will have to weld the passenger mount because I wouldn't trust the hefty little bolts from the kit, but you are also gonna need an aftermarket crossmember because of the headers clearance. Another problem is the altenator, it will hit the driver side headlight assembly and you may have to trim it or you can buy a bracket to relocate it; http://www.explicitspeedperformance.net has a kit for that. I gotta admit this is a great swap, plus you spend less than a k-swap. If you need more info just let me know.............................................. ..
&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&g t;&gt;&gt;LATEZ!!!

 

My class is supposed to be stock 4 cylinder cars and it might be pretty obvious that the F22 isn't a stock crx motor.

So i'm rethinking swapping that in there.

Thanks for all the insight and details about the swap.

Well the Accord is probably a 94 then.

I have been considering a Sohc ZC and I have been researching the Sohc ZC engines and i'm getting different results on the horsepower and tq of the engine.

What I've found is the made at least two variants of it a sohc non-vtec and sohc vtec. And the hp results i am getting on them ranges from 108 to 130. I was hoping someone could clarify the specs for me.

Also, does anyone know if any sohc zc ever came in a foreign crx?

The reason that I found the engine interesting is b/c I saw a picture of one and the Ignition goes in on the far side of the valve cover just like the stock crx engines.

any input would be appreciated

Thanks

Jeff

 

Get the d16zc vtec.

Convert to OBD-1.

 

That engine has the ignition plugs going in on the near side of the valve cover. If I would use that engine it would be obvious that I was using a non-stock engine. One of the sohc cam ZC's has the ignition going into the valve cover on the far side and that resembles the stock ignition placement on crx's. I was wondering if that ZC engine that I am talking about has any more power than the stock Crx si engine (d16a6 i believe)?

 

there was a jdm sohc zc

call homotorsonline and ask about it.

do they have any way of checking your power before your run?

what if you bought a delta cam, or an oem regrind and worked your internals a bit, you could go obd1 and reloom everything and it would still look oem, and even retune the whole thing.

its all about what they check for, do they look at the ecu at all, or throw the car on rollers first?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by G-Spot Auto (EF_CRX) &raquo;</TD></TR><TR><TD CLASS="quote">[b] I used the Innovative Mounts kit and it worked for me; the only thing is that you will have to weld the passenger mount because I wouldn't trust the hefty little bolts from the kit, but you are also gonna need an aftermarket crossmember because of the headers clearance. Another problem is the altenator, it will hit the driver side headlight assembly and you may have to trim it or you can buy a bracket to relocate it; http://www.explicitspeedperformance.net has a kit for that. I gotta admit this is a great swap, plus you spend less than a k-swap. If you need more info just let me know.............................................. ..
&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&g t;&gt;&gt;LATEZ!!!</TD></TR></TABLE>


he said F22 reading is are the goodest.

besides, he'll get caught if he tries that, so hes gotta look into building this d a bit.

 

In your words so you'll understand:

If the plug wires are on the "near" side, its VTEC.
If the plug wires are on the "far" side, its notec.

The ZC comes in 3 different forms. SOHC notec----SOHC vtec-----and DOHC notec.

All of the vtec motors and any non vtec made after 1991 will require OBD1 wiring unless you use your old manifold and dizzy etc......

good luck.

 

If swaping in an f22 is cheating... dont do it.

Work up the D15. You can easily make power with it... its just that most people dont.

 

If you don't want the valve cover to say "vtec" then grind it off and prime and repaint the valve cover

 

thanks guys. Does anyone know if the sohc non-vtec ZC engine makes more power than the D16y6?

 

D16Y6 96-00 Civic DX motor? Non Vtec? 1.6L 103 hp and 106 trq

ZC SOHC NoN VTEC 1.6L 88-91 130 hp

SOHC VTEC D15B 1.5L 130 hp 92-95

Both the JDM ZC SOHC and JDM SOHC VTEC D15B have seemed to have a mysterious agressive factory cam. Rumor is the cam has similar specs to a stage 1 aftermarket cam. Thus these engines are powerful for the factory D world out of the box and will resemble similar hp numbers as the D16Z6 SOHC VTEC USDM 92-95.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ESP.net &raquo;</TD></TR><TR><TD CLASS="quote">D16Y6 96-00 Civic DX motor? Non Vtec? 1.6L 103 hp and 106 trq

ZC SOHC NoN VTEC 1.6L 88-91 130 hp

SOHC VTEC D15B 1.5L 130 hp 92-95

Both the JDM ZC SOHC and JDM SOHC VTEC D15B have seemed to have a mysterious agressive factory cam. Rumor is the cam has similar specs to a stage 1 aftermarket cam. Thus these engines are powerful for the factory D world out of the box and will resemble similar hp numbers as the D16Z6 SOHC VTEC USDM 92-95.</TD></TR></TABLE>

hhmmm i thought the sohc zc was rated at 120. I'm probably wrong

 

correct my bad 120 hp on the ZC SOHC NoN Vtec thats only rated 6 ponies less then the usdm d16z6 SOHC Vtec... the 92+ D15B Vtec JDM is rated 130 hp...