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So I bought a 500$ Geo to drive while I swap out the y8/b7 for a G23. Car is turning out to be a solid daily so of course I'm thinking of ways to ruin it. This thing weighs 700lbs less than my Eg and I will have a leftover minime looking for a home... The primary limiting factor would sheer physical size of D engine/trans, particularly the overall length vs width of engine bay. The chassis does come in certain trims with a 4 cyl which gives me hope that I can just haul out the wire feed and cutoff wheels without resorting to a custom subframe type of deal like that B18 guy.
Any thoughts or input welcome.
I'm assuming I could get the Honda to Suzuki drive lines grafted somewhere?
What could I do about an inline fuel pump? The Geo is TBI but I doubt it will have the appropriate fuel pressure.
Sounds like a fun project. I have a 2000 Honda Insight I will be swapping a d series into as well. One thing I could give you advice for is the wiring. If you can get a ek engine harness you can run the whole engine basically just hooking up abou 4 wires for power, ground and starter then use a obd1 jumper harness to be able to tune it. I've always thought a stock k20a2 in a geo would be awesome. What type of front suspension is on that car? Maybe you could figure out a way to fit some Honda knuckles into it or something.
as for a fuel pump an inline Walbro 255 would be more then enough and easy to do. Stock Honda fuel pressure is 43.5psi.
And here I thought everybody was going to rag me for such a harebrained idea lol.
Wouldn't have known about the EK harness, will save some headache. As I learn more about fuel injection and engine management I'm starting to to realize that it's actually easier to deal with than trying to tune an old Holley on an overcammed v8.
The suspension is regular old Macpherson strut and something I can work with, hence desire for custom halfshafts. And Swift Gti brakes.
Good news about Walbros, should've known they'd be a universal fit type of deal.
This all boils down to physical fitment of engine. A 120whp one in a 1500lb car.
The 01-05 civics also run Mcpherson front suspension you may be able to fit some civic knuckles and struts on the front so you can use Honda splined axles. And hell no man, I would love a fast geo metro, that's seriously like the ultimate sleeper lol. That's why I wanna make my little Insight fast, my main goal is 45mpg and 200+whp from a single cam turbo. And yeah the efi stuff is easy honestly. Any problems you come up on there's a ton of info to help you sort things out through this forum. I have a d16a6 motor and y8 trans I can measure for you once I get the tranny back together.
As it would turn out the engine bay clears by 3+" in width and some minor sheet metal massaging will clear manifolds, all of this depending upon axle angles of course. Not too worried about hood clearance.
It's not hard to triangulate mount brackets up with a wire feed and cutoff wheels, just need to scotchbrite and cold galvanize/paint.
I'm liking the idea of Civic knuckles and even struts, Swift Gti stuff has gotta" be getting hard to find.
Actually getting more excited about this than that G23 now haha.
Bump
Getting oddly attached to this beer can with wheels.
It would be so much fun w any other motor, Geo Metros are the lightest Honda Civics ever made.
Do it dude. I just started on my d series insight swap a few days ago. I fabricated the mounts pretty easy after checking everything for clearance, axle alignment and making sure the motor was level. The car weighed 1750lbs with the eac inline 3 in it and allot of hybrid crap in the trunk. Hoping to have it up and running sometime this week.
Indeed it is. Here's the cylinder head I put some work into. My insight last scaled at 1750 with about a quarter tank, full interior, ac, power everything and a stereo system also with the hybrid junk in the back. Hoping it will be about 1700 flat after the swap.
Holy crap you even got valve stems out of the way! Am hearing there's some validity to those golf ball dimples.
I would think the new drivetrain would be at least 200 lighter despite extra cylinder.
Yeah to be honest d series heads are super easy to port with the right tools. 20mm flap wheels for dremels can be bought on eBay for super cheap and work awesome for that port size. They make getting stuff smoothed out really easy. The dimples should help fuel atomized and keep it from sticking on the port walls. I will scale it once its back on the road. I know my new exhaust will weigh a bit more then the stock 1.5" exhaust but I'm also deleting two cats, the hybrid components, ac pump and allot of small brackets that weren't needed. I also wanna delete the abs down the road to simplify the engine bay and reduce unnecessary weight. Just built the rear t bracket this evening so mounts are all done. Had to order a mk1 vw radiator to fit because the insight and eg radiator I had didn't fit well. The insight radiator sits on the drivers side and has an awkward outlet that doesn't clear the core support if moved to the other side and the eg was too tall. The vw radiator is a better unit anyways.
I finished off my intake ports w 100 grit to hopefully create that surface turbulence. I was surprised by how much Honda left on the table w my z6 head, all kinds of areas to work on.
Z6's really aren't all that bad especially in comparison to a y8 head. I was blown away with how aweful the ports on a y8/d15b head were stock. Like the right side intake valve port on each port is about 50-60% of the size of the left port. The bowls are super crowded and there's about a quarter inch step in that side of the port that's just a square edge protruding into the port. It's designed for the swirl effect but not for making power at all. I hope you go through with that swap in the geo. It would be the sickest eg hatch out there lol
I will say the Y8 runs better everywhere but top end, fast burn chambers felt way more efficient. The Z6 I blew up(Zex 59300 WILL float w stock springs) was shaved to give equivalent C/R but required more advance and was more prone to detonation. But yeah, has to have more flow potential.
Geo is a great and very light chassis but stock brakes are horrible and Swift Gti stuff is getting rare. The aforementioned Honda spindles would be the way to go and it really needs a rear sway bar among other things. I believe that K20 swapped one was all custom fabricated and I know they're running nice coilovers of some sort. At any rate, the 120ish whp that minime is supposed to have would scream in that beer can with wheels, and 150 is attainable n/a
I'm hoping my y8 head converted to d15b 3 stage vtec will have good top end. Just got it fired up today, still waiting on the radiator so only had it running for short periods but it sounds and feels beastly sitting in the car. And yes the stock geo brakes are seriously funny looking. Like impressively small. That car would probably do endos with some ep3 front brakes lol.
Cute little bastard, a lot of fun for 48 hp at flywheel.
So thats a Y8 U ported? Did you leave any swirl characteristics or make ports symmetrical? If I remember y8 cam miked out slightly bigger on one side of primary lobes, I'm guessing to promote that swirl.
Yeah I ported the head and intake manifold as well. I tried to make it as symmetrical as possible but it's still a little biased towards the left side valve ports. And what happened? Keep it on the road lol.
Update... have now logged almost 17k miles on the Geo in 15 months. Thought it was finally dying at one point but just a 19$ fuel filter. The civic is daily-able and there is room in driveway...