Maztang5.0

iTrader: (1)

I just picked up an 83 and it has a 13b swap. I have no idea what it's from if anyone can help me out please do. It has 13b on the intake and it's fuel injected.

Jeff20B

iTrader: (13)

You have an S4 NA engine which is a 6 port out of a 1986 FC.

DreamInRotary

iTrader: (49)

Did your rotary senses tingle or what?! How'd you figure that out without a picture?

andernamen

iTrader: (2)

No Jeff you are wrong...13b out of a 1984 GSL-SE, a red one.

Jeff20B

iTrader: (13)

It's an unpainted stock S4 NA shortblock with a GSL-SE oil pan and a 12A front cover. The flywheel is a stock S4 NA at 24 pounds with an OE style Exedy clutch disc and pressure plate kit swapped about five years ago. Plenty of life left on it. The alt and distributor are stock from the 83 chassis, as is the front cover.

The fuel pump could use an upgrade as it's the stock one and they're kinda too small for the stock 12A in the first place. The waterpump is ok for now, but plan on getting a new impellor at some point. Oh and that oil leak you got... Don't worry. It's pretty minor.

I think that will do it. My rotary senses are just about spent. Anyone else wanna chime in and help this guy out?

Maztang5.0

iTrader: (1)

Here is a picture of it so everyone can stop assuming

j9fd3s

iTrader: (3)

looks like a stock S4 to me. looks a bit like they didn't even swap engine mounts and just threw it in there

Maztang5.0

iTrader: (1)

It has this weird "custom" mounting setup. Seems quite unsafe and they didn't finish because the center link can't even be installed because the oil pan is in the way. What's it worth. It has good compression and the harness.

Jeff20B

iTrader: (13)

I was right about the engine (the S4 NA being the red headed step child of the 13B into 1st gen swap) but strangly wrong about the way it was installed.

If you want the install to actually work, you need to locate an unmolested stock FB main crossmember because I assume the previous owner chopped yours. I say that with some experience because the PO of my GSL-SE chopped out the motor mount pedestals so he could install an FD engine with stock crappy FD motor mounts. Big mistake. The engine would rock and roll like Buddy Holly (stock FD moto mounts are liquid filled and esigned to work with the power plant frame from of an FD chassis - the 1st gen doesn't have one of those). Even kept the stock oil pan and front cover, I assume for the crank angle sensor, not knowing that an FC CAS could have been used in a stock 1st gen front cover. Thank goodness the PO never got it running. It also led to my getting it easier. Hah!

You will also need a 1st gen front cover, as mentioned earlier, and a GSL-SE oil pan. Maybe look specifically for a GSL-SE front cover because the OMP uses four oil lines like the FC, bit it;s not strictly necessary.

Just so you know, I did a complete install of a stock S4 NA engine, including OEM ECU, into an 84 GSL early last year, and it worked (even used a 12A front cover and only ran two oil metering lines into the intake manifold, but that's way too much info at this point). What you're looking to do is possible. It just takes some hours of searching the forum, asking questions, posting your results and having fun. I happen to like wiring so that part of the project was fun for me, at least. Not sure what you consider fun though.

Maztang5.0

iTrader: (1)

I heard from many people that these aren't that desirable because the turbo motor is better to build even i you go n/a.

Jeff20B

iTrader: (13)

The 6 ports can have some power, but it's not much more than a stock GSL-SE. You're right the real power is the turbo engine. There's also a real cost involved too, as there is in any higher HP build. What do they say? HP costs money or whatever?

There is a way around some of the costs though, and it's knowledge of how to build it yourself. Spend hours searching this forum and you'll find plenty of info specific to your goals. I've found plenty of threads from 2004 that contained the info I was looking for about boost prepped Nikki carbs recently, and they've been quite valuable. So I may be about ten years late to the party on this one particular subject, but better late than never. Oh and the end result, if you're curious, has been pretty good. I like it better than EFI.

j9fd3s

iTrader: (3)

the S4 NA was 146hp which is enough to be fun. there is another 10-20hp in it with mild mods, like exhaust, and port matching things.

but the turbo starts @180, and goes up from there, so on the internet more is always better, so the turbo wins.

Maztang5.0

iTrader: (1)

What about if I went n/a. Would the turbo motor be better or the n/a?