H22 swap in 87 2.0 si transmission question - Honda Prelude Forum : Honda Prelude Forums
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Old 12-31-2016, 10:38 PM   #1
Faisals_87_2.0_si
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H22 swap in 87 2.0 si transmission question

I'm looking into dropping a h22a1 from like a mid 90s prelude into mine wondering if I can take the easy way and just bolt my tranny onto the new engine. Like will my stock 87 transmission line up with a h22?? Or will I have to get one that's got a tranny already on It..
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Old 01-02-2017, 06:26 PM   #2
zedries
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No - the transmission in your car will not bolt onto a H22 motor.
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Old 01-02-2017, 11:55 PM   #3
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Thanks bruh.
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Old 01-03-2017, 04:23 AM   #4
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H22 swap

You will not find anything for H22 swap that will just bolt on from existing era parts, H22 is from much newer generation you need to swap out entire engine wiring loom, or go complete custom ECU and harness (latter probably easier and better but a lot more expensive), You'll need to have custom mounts and possibly custom front subframe designed and fabricated, you'll need to cut and shunt drive shafts to suit and they'll have to be done by driveshaft specialist so they're not wobbly and vibrating everything to pieces, you'll have to convert to hydraulic clutch as original is cable, and you'll need a custom exhaust manifold made as well, don't forget about your brakes as the originals just about coped with the power it had at the time let alone something with a lot more power and weight.

It can be done and has been done some done very well some done very badly but will involve massive amounts of time if your capable of doing yourself or tonne of money that quite frankly your just tossing down the loo as the car will never be worth a great deal when done.

BTW the original engine can be built to quite a potent amount of power mine has 200bhp and I've not had to use anything expensive in the actual block all standard parts, most expensive bits were the weber carbs, and custom exhaust the rest pretty reasonable cost like inlet manifold, cam, valves, but head work could be pricey unless you can do yourself or know someone that can do a good head job.
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Old 01-08-2017, 09:25 PM   #5
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yes - listen to rjudgey ^^
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Old 02-18-2017, 11:09 AM   #6
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Tried starting a new thread only I'm a newb and don't know shit about forums, so I'll try my luck here: About a month ago the lude wouldn't fire up when I went to leave work. It was running perfectly beforehand, nothing out of ordinary, but now it was cranking with no start. So I had a buddy tow it to my house, where it's been sitting for the last month, and I've been working on it here and there when I have time. So far I've resoldered the main relay just because I've had time to, I've checked for spark and it was weak so I replaced distributor and coil; still wouldn't fire up. The fuel pump primed every time and as I said, redid the main relay, so I eliminated spark and fuel and started looking at my timing. It was dead on. I did it with a piece of wire as a feeler on the top of the piston and then again with a rubber glove as a balloon on the end of a compression tester hose, like I said dead on every time. So I tried cranking it again and for the first time ever it actually gave a little putter, it attempted to start whereas before it would just turn and turn all day with not even coming close. Me and my buddy got some ether and juiced it up and she fired up and ran like shit for about 5-7 seconds and died when the ether burned off I'm assuming. That was yesterday so now I'm looking back at the fuel delivery system. My next step is to rent a fuel pressure gauge and see where I'm at.. any tips guys? Or does my logic seem to be sound.
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Old 02-18-2017, 08:44 PM   #7
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Checked fuel pressure and it was within spec (35 psi/ 40psi when cranking) threw a Noid light on all the connectors for the fuel injectors and none of them showed pulse except #1. Also I peeped the CPU and it's showing code 9 for CYP censor, I really need your help smart Honda guys cuz I replaced the dizzy with a brand new one, so it should have a brand new CYP? Or am I wrong? Another weird thing, On just one of the tests, number four cylinder showed pulsation on the light while cranking and the engine fired up and ran, sounded like absolute shit (almost could have been cool if it was a Harley) but it ran steady until I turned the ignition off. But then it wouldn't ever do it again.
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Old 02-23-2017, 07:34 PM   #8
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read this and read your other id say timing belt...maybe injector..u could try swapping the one that worked with one that doesnt and see what happens ..dont cost nothing...or even easier, top of the enging we gotta plastic upper timing belt cover..pull that back a little til you can see the belt and have some one try to start car..if that belt doesnt move your timing belt broke..mines done it twice..didnt u say it was cranking faster than normal when trying to start? thats a sign of timing belt
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Old 02-23-2017, 07:37 PM   #9
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oh and btw..this is what happens when u consider swapping engine to something"better" 2gs got feelings too
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Old 02-24-2017, 09:10 AM   #10
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Ik bro I shouldn't have taken her for granted. Lol timing I checked timing and it was perfect, fuel pressure was good and so was my compression, and spark. I figured out the issue is no injector pulse, well no injector pulse on three cylinders anyway cuz number one works like it should.. I'm taking it into the shop today.
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Old 02-27-2017, 06:09 PM   #11
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Mechanic says bad fuel injector resistor box is doing it...
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