Hello! New here, doing a 4G67 + G4CS swap (into a 1984 Pony)

Jed118 · Post by **Jed118** » Mon Sep 03, 2007 10:20 pm

Hello!

I don't know why I did not think of this sooner, but it has come to my attention that a 4G64 (G4CS Sonata equivalent) and a 4G67 (4G63 equivalent 1.8 with smaller CC's) fit together to form a 2.4L 16V DOHC. I've been messing around with the idea of a G54B for years now, however it is SOHC and I wanted to make a DOHC unit.

So now, I have a 4G63 SOHC in my '84 Pony, and I bought a 4G67 head from a 1995 elantra to fit it. However, because the SOHC has higher pistons, not only will that result in 16 bent valves, it will also (momentarily) result in 13.3:1 compression. I just installed the motor, so to take it all out again and redo the pistons on a 2liter doesn't seem like it's worth it. Sooo.... I'm FAIRLY sure I can get a 2.4L block for... $45! One of those pay what you can days at a junkyard 3 cities away.

Here's my car:

It needs a fair bit of work too, but I've had it for 6 years now.

As for the engine combo, got taht 90%covered. The rear axle will be replaced with a mustang 8.8 LSD, brakes upgraded with a caravan brake master/booster, front spindles replaced with Stellar units (larger brakes) and those somehow mounted to shocks (not enough research yet)

Now then, the crux: The transmission. I know there's a D50 that will fit, but I've heard of the possibility of using Toyota transmissions. I have also fiddled with the idea of using a 1987-1988 Mazda bellhousing (the ONE year they used the G54B) connected to an RX7 trans.

Are there any (cheap, I'm 3rd year student) alternatives?

ANY help or suggestions will be appreciated, it seems that this site is exactly what I need to do the job right.

-Jed

jeffball610 · Post by **jeffball610** » Mon Sep 03, 2007 11:11 pm

Looks like a sweet project. I've never seen a Pony. Was that even sold here in the US?

With the smaller CC 1.8L head and the 2.4L, I think you'll still get a 13.3:1 compression ratio. The 2.0L head and the 2.4L make an 11:1 ratio. Or maybe I'm on crack and the combustion chamber size doesn't affect compression ratio. If you check on the boards here you'll see we have Bill doing great things with the tranny. For your NA application, the W55/58 units will be plenty strong. Actually, the D50 unit might work too.

Post by **DJpowerHaus** » Mon Sep 03, 2007 11:14 pm

First off... finish school and get a nice job, you'll need it. Cheap, fast, and reliable.. pick 2.

Secondly, Hincher's Toyota Bellhousing is a good way to do a RWD narrowblock, so look into it.

Jed118 · Post by **Jed118** » Wed Sep 05, 2007 11:56 am

^^^ I have a fair bit of money coming in, however, having owned 25 cars so far (12 Hyundais, 10 of them Ponys) I know about TIME constraints, especially with two jobs and 3rd year U courses. I am quite dedicated though (I've lost several girlfiends because "you spend all your time on that peice of shit") and it's just a matter of time.

As for the Pony, heh, that's an interesting car indeed. Designed in the 60's, produced from 1974-1982 (markI) exported to everywhere but North America. The Pony2 (or New Pony) was tested in 1983 in Canada, and sold for the 1984 model year until 1987. Because of emissions BS (no catalyst) they were never sold in the US. I hear in africa they made them till 1992-3. It's really a mishmash of parts, using tooling from Ford (as Hyundai made KD cars in the 60's for Ford: Cortina and Granada) so a lot of the parts fit from Ford, including escort cosworth rear axle, almost all Ford rims fit (for example, the black Pony has 1999 Cougar rims) and some of the interior has a hint of Ford on it. The engines used are Mitsubishi Saturn 1.2, 1.4 and 1.6 2xbbl carb, point ignition SOHC 8 valve hemi. The transmissions, Borg Warner 03-55L auto (with detachable bellhousing - oh shit I think I got an idea!), KM112, and KM119 (I think)

I have 2 more of these cars, in mostly stock form, especially the red one (only mod is rims)

The blue one looks a little different now

The reason the black one looks different is because it has an escort GT front bumper moulded to the front, and Z24 skirts moulded to the side. It also has 77 camaro fender vents in the hood. It's gonna get tonnes of more bodywork, but that's taking place next year.

I also have a 1987 stellar CXL that I got for free (it had bad brakes)
It's kind of a prelude to the Sonata, but it is also RWD.

It is powered by a 4G63 SOHC. My black pony has this engine in it right now. It's torquey, but it lacks top end. Also the carb sucks and it is too small.

Anyways, I think I just discovered something neat, but i'd have to get a hold of a Pony automatic for it's 03-55L Borg Warner bellhousing. I wonder what other american transmissions I could hook up to that!!

Post by **DJpowerHaus** » Tue Sep 25, 2007 7:04 pm

I was seaching around for something and ended up on a Hyundai message board thread of yours. You are planning on using 2x 2bbl carbs?

Man... get a standalone. Takes about 20 wires and 4 of 5 sensors. You'll probably have more vac lines than wires with those carbs you have pictured. Do motorcycle ITB carbs if you're set on carbs. Either way you're still going to need something for spark and being that the DOHC heads have no provisions for a distributer, it limits your options to something with wires.

Jed118 · Post by **Jed118** » Mon Oct 01, 2007 2:47 am

Something with wires eh?

First I have to build the motor. I'm gonna worry about the MSD SCI when it comes to it. With the latest arragement of hourly cuts, we'll have to see.

Bike carbs have (and will continue to be) a very viable option.

However, if you've ever used american carbs, you'll see that there's very little vacuum lines. My current 1987 stellar has less vacuum lines than a mid 90's pontiac steering wheel harness.

First thing's first: Build motor. If I DO have to go EFI, I will reluctantly do so when the time comes.