Hi,

putting a 32v engine into an OB involves too much mocking up for my taste, but how about the late 16v Euro S (310 hp) engine?

It has double distributors and LH-Jetronic injection. This would obviously require some improvisation to splice into my OB el-system

Would it be simpler to re-use the K-Jet injection and Ignition I currently run? Would that hurt performance too much?

MM

 

The simplest swap will be to use your current CIS system and ignition if they are working properly.
Adding an LH setup to the CIS car will require a new wiring and a bunch of work for only 10HP.

 

Is there some thread that runs down the 32v swap into a 16v or OB details?

 

Just my $.02

Friend of mine has an expression he uses to sum up projects like these: The juice isn't worth the squeeze.

Engine swaps fail to make any sense to me when other proven bolt on options exist for these cars. Swapping in another motor of any kind is in the thousands. Seams simple and easy at first, until you break it down. First off, I would personally not drop in a "donor" motor without first doing a rebuild. Rings, bearings, seals etc.... not cheap when you add everything up. Then you have the cost of the brain boxes, harness, injectors, ignition amplifiers etc.... Exhaust will probably need to be tweaked if not completely replaced.

That being said, I am currently in the planning stages of converting my 79 CIS to the injection system from an 84-85 EuroS. I already have all of the necessary components (thanks TurboX). Why am I doing this? If I want a 32V I’ll buy an S4 & 8:1 or 8.5:1 compression is a lot more boost friendly than 9.5:1 or 10:1 compression the S4 motors have. I do have a 5.0 engine set aside for something. I’ll probably someday drop the shortblock into one of my cars & sell the heads.

 

A later Euro 16V engine is LH-jet, just like the 32V engines. What about the 16V late euro makes you think its easier than a 32V?

 

Actually the 16V LH conversion is more difficult since the early 16V motors do not have a crank sensor. Not to mention it would be better to use S4 fuel rails to avoid the barb fitting type injectors. So you also need to find a way to secure this down.

 

I have installed a 86 32V engine into a 81 euro tub, all the needed holes were there, however I had a complete 86 wiring harness and replaced the entire wiring/fuse box at the same time. Car runs great, wasnt too bad imo.

 

Thats kind of what I was thinking, buy a donor totaled car and pull everything as needed.

1) I live in Calif, all those bolt on parts are bolt off every two years for the smog test. Plus the 16v -> 32v looks both cheaper and more reliable than sticking a blower on the motor I have now. Combine the swap with the usual WYAAI chores like oil pan gasket, motor mounts, TB/WP plus the chance to really get the engine bay clean and detail and paint a motor, sounds practical so far.

2) I like my car, I like the headroom of no sunroof, like it enough that I would be spending the $3k to $4k on any newer 928 to replace the roof.

3) I'm a hillybilly and half Okie, we don't rebuild motors we gets us a good one out of some other car. Its my guess that in the last 10 years more 928 engines have been swapped than rebuilt, so its not like I am looking to start a trend.

 

Things are starting to make sense around here

Bottom line is how much power do you want & how much will it cost. If a stock 32V is "enough" then I agree it is the "best" way to go. Not the end of the world, just time consuming. For my cars, the only way a N/A engine will work is a dialed in stroker (like Louie's) - way out of my budget. So I'm sticking with forced inducion.

You know dangle - I can have the blower off my car in less than 30 minutes. Just put a filter on the end of the intake pipe to pass the visual.

 

S4 now only medium warm in my mind. I talked to Tim at DeVitos a bit today, and more or less talked myself out of that idea, and much more into just a swap of the manifolds and dual cats of a later model.

 

Done several motor swapps into Supras, usually it's a newer turbo 24v 3.0 turbo(7mgte) replacing the NA 2.8(5mge). One thing they all need is a custom wire harness spliced into the body that lets the newer engine live in the old bodied car. It's a big hassle, taking the dash out and locating everything pertinent for the new harness to be spliced into. Just a guess, but the 928 would need something similar.

A turbo 16v would be the way to go if you want more HP, IMO.

But on a side note, swapping a 2jzgte(I6) w/ a big single would give you a 1000+HP capable 928.

 

A handfull of Rennlisters have swapped in a small block chevy, basically a vette motor, and the results are hard to argue with, the cars are just insane performers, but the cost is easily $12k without getting fancy or too radical in the power. I'm going to be in Las Vegas in Jan for the Consumer Electronics Show, and booked an extra day in town to talk with Renegade Hybrids who offer a "basic" LT1 swap on the 928, and a more advanced LT1 or LS1 swap on the 944.

I have been doing research for a month or so, mostly related to Cal engine change laws and smog testing, but I have more to learn and decided not to allow myself to get into a discussion here until I see some things first hand and get more experience driving the car as it sits. I've got no interest in making an expensive dragster that only looks like a 928, but something between your 85 and 90 might preserve all the character of the 928 and suit me fine.

Every few months a swap thread seems to hit, and for the most part little is resolved, too much variation in goals, and too much speculation in the details and costs. I'm hoping in a couple months I can flesh out a more complete picture. I really hope that just doing exhaust stuff on my 83 will float my boat enough to avoid spending so much up front, but my boat must float.

 

Guys,

I think you have missed what he is asking. He wants to replace the block and heads of his Euro 928(K-jetronic) with a Euro S2 (16V) engine. He will upgrade to Euro S intake plenum and runners (I have a spare set), they are still K-jetronic. The only thing he has to transplant from the LH-jetronic setup to the K-jetronic is the throttle body. I am not sure if the twin-distributor system would be a problem though?

Ian in Norway

 

What? The EuroS intake is designed for electronic injectors, same ones in the S4.
I must be missing something in your post.
Are you saying to carry over the CIS intake? If so, yes that would be a pretty easy swap. Drop in the higher compression motor with the larger valves & better cams.
Personally I would pick up an early EuroS intake and throttle body since they are larger than the US CIS intakes.
So basically he needs to find an 83 EuroS engine and drop everything in. If he keeps everything CIS, then yes, just a basic engine swap.

 

Also confused by this statement. The TB setups are completely different. Why would he do this?
The spiders are also different since the LH uses electrical injectors and not mechanical injectors, so there are different injector mounts.