Lit'lphant - Toyota's Hemi V8

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oldeskewltoy
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Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Thu Mar 21, 2019 10:34 am

Did you know Toyota built a hemi V8?

Image

This is the "V" engine - https://en.wikipedia.org/wiki/Toyota_V_engine - not a whole lot of information.... :cry:

The "V" engine designation began in the 1960s, and ended in the 1990s. It began as a 2.6 liter V8, and in its last iteration it was 4.0 liters. Wiki is a bit confusing - in one place it states the V engine was superseded by the UZ, yet in another it says it was superseded by the GZ 12 cylinder. The later would be correct. While the UZ engine line is the next V8 after the V, the UZ was used in different applications then the V was, the GZ replaced the V in the only car to use either - the Toyota Century.

Some more info "gleaned" from the internet... (notice some discrepancies in power between this, and Wiki)

engine type naturally aspirated petrol
Engine manufacturer Toyota
Engine code 5V-EU
Cylinders V 8 in 90° vee
Capacity 4 litre - 3994 cc - (243.729 cu in)
Bore × Stroke 87 × 84 mm - 3.43 × 3.31 in
Bore/stroke ratio 1.04
Valve gear overhead valve (OHV)
2 valves per cylinder
16 valves in total
maximum power output: (JIS net) 164 PS (162 bhp) (121 kW) @ 4400 rpm
Specific output(JIS net) 40.6 bhp/litre - 0.66 bhp/cu in
maximum torque(JIS net) 289 Nm (213 ft•lb) (29.5 kgm) at 3600 rpm
Specific torque(JIS net) 72.36 Nm/litre 0.87 ft•lb/cu3
Engine construction light alloy head & block (reported to be 130 kilos[286#s]) for comparison a 1UZ tips the scales closer to 355#s
compression ratio 8.6:1
Fuel system EFi
bmep (brake mean effective pressure) 909.3 kPa (131.9 psi)(with a BMEP of 131 theres some serious room for improvement)
Maximum RPM unknown… but hemi article alludes to a crank capable of 9000 rpm
crankshaft bearings 5
Engine coolant Water
Unitary capacity 499.25 cc
Aspiration Normal


In my searches for info on this engine, I had heard that an old Hemi book had a few pages on the V engine... after pestering a few of my friends who build V8s... I got this...

Image

Image


Now the BIG downside... Toyota no longer services this engine - all gaskets will need to be custom made :cry: :cry:


So, I began my search... and it began with Moto! I had asked Moto a few months ago if he knew of any engine importers that might help me. He recommended a few. I tried them, and I also asked Robert @ EP importers - http://www.etsuryu.com . Robert was a great help and found a Toyota V engine for me! To make a long story short - Robert couldn't import the engine for me, so I passed the information (YJ auction) along to an engine importer that came recommended on Facebook. Once the engine gets here, I'll post the engine service with whom I bought my "new" 5V-EU from...

and here it is - scans came from the YJ auction

ImageImageImage


Robert did help me with 2 other significant purchases... 1 - an original starter for this engine, and 2 - a 5V-EU factory service manual!!

Image


I expect the engine to arrive sometime late spring, or early summer.


A WHOLE lot more to come... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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oldeskewltoy
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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Mon Mar 25, 2019 8:43 am

oldeskewltoy wrote:

A WHOLE lot more to come... :D



So, for those who only know me as "oldeskewltoy"... I'm 60 this year, and so my car life goes back to the mid 1970s.... so I've had my share of V8 powered muscle/pony cars: Shelby GT350-H, GT500, GTO Ram Air III, and my last one(1990-1994) was a 1970 Mach1 Mustang powered by a 428SCJ. A few of my friends from back then(70s) had cars like an L-88 Corvette, and a Hemi GTX. So, while I may be recognized here as a 4AGE specialist, my past has many V8 builds.

The problem with all the American V8s from that era are their mass, the 428SCJ and large spline Toploader transmission for my Mach 1 weighed in around 800#s!!! :o The 426 Hemi engine by itself weighed over 750#s!!


Fine for straight line performance... but trying to carve a back road with 800# iron block on the front axle is just a joke... (tires back then were also a joke)

The first time(15 years ago??) I saw a Toyota "V" hemi engine was on ebay... (note custom intake with "dual quads" ;) )

ImageImage


I then did some searching, and found a few hotrods out there with the Toyota "V" Hemi engine

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But there wasn't much information available other then it was the engine for the Century for nearly 30 years. As I dug deeper, I found the specs - posted above - and it was the engines mass(weight) that got me interested in it again, and then I asked Moto.....

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While the engines weight is very light for a V8, there are no mention of external dimensions... all I have to go on for now is photos, it does look small in the Black Hotrod.... and it "fits" in a Corona......

Image



more to come...... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

sirdeuce
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Re: Lit'lphant - Toyota's Hemi V8

Postby sirdeuce » Thu Mar 28, 2019 1:34 pm

Oh man! Been a long time since I saw one of those. I had a small collection of Toyota engines that I thought were cool a while back. I had one of those engines sitting in line with a bunch of other rare engines. Here are a few of the other engines I scooped up an 18RB(see if you can find that one), It was an 18R with twin 1bbl solex carbs. Along with that was a line up including a 3M from a 2000GT, 18RG E and U, 2TG, 3TGTEU, 4TGTEU( the 3 and 4 T engines were turbo and fuel injected with 2 spark plugs per cylinder). A little .8l opposed, air cooled 2 banger 'U' series engine I took out of a wrecked Sports 800 (I got to drive that car, I would give my MR2 for one for sure!). Couple of other rare engines as well. Had a collection of unobtainium parts from TRD as well, like a roller cam and rockers for a 20/22R and a head for an 18R block with 16 valves (never used it as no one had pistons for it), and a 4AGE head. The head was a reengineered casting with reshaped ports. Another piece that just sat on the shelf until I was pretty much forced to sell it all. Thanks for dredging up those images from the rusty files in my brain!
One shot, one kill.

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Re: Lit'lphant - Toyota's Hemi V8

Postby sirdeuce » Thu Mar 28, 2019 1:35 pm

I actually thought you were going to bring up the 'T" engines with that lit'lphant thing.
One shot, one kill.

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oldeskewltoy
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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Mon Apr 01, 2019 11:48 am

sirdeuce wrote:Oh man! Been a long time since I saw one of those. I had a small collection of Toyota engines that I thought were cool a while back. I had one of those engines sitting in line with a bunch of other rare engines. Here are a few of the other engines I scooped up an 18RB(see if you can find that one), It was an 18R with twin 1bbl solex carbs. Along with that was a line up including a 3M from a 2000GT, 18RG E and U, 2TG, 3TGTEU, 4TGTEU( the 3 and 4 T engines were turbo and fuel injected with 2 spark plugs per cylinder). A little .8l opposed, air cooled 2 banger 'U' series engine I took out of a wrecked Sports 800 (I got to drive that car, I would give my MR2 for one for sure!). Couple of other rare engines as well. Had a collection of unobtainium parts from TRD as well, like a roller cam and rockers for a 20/22R and a head for an 18R block with 16 valves (never used it as no one had pistons for it), and a 4AGE head. The head was a reengineered casting with reshaped ports. Another piece that just sat on the shelf until I was pretty much forced to sell it all. Thanks for dredging up those images from the rusty files in my brain!


Of course..... :roll: I've heard a rumor the the V was used in some of the Stadium trucks.... not sure how accurate that is


Not sure why/how you got a hold of so many unique Toyota lumps... I hope you got worthwhile cash for them.......



sirdeuce wrote:I actually thought you were going to bring up the 'T" engines with that lit'lphant thing.


Its funny you should mention that.... while the combustion chambers are similar.... the rest of the head is significantly different

Image


The rocker layout is also similar... but the intake rockers are unique - wrapping around the rocker - top rockers in photo

Image



Oh a quick side note... my new phone... translates Japanese :shock:

Image

more to come...... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

sirdeuce
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Re: Lit'lphant - Toyota's Hemi V8

Postby sirdeuce » Tue Apr 02, 2019 4:49 pm

I came across the engines at an importer(now defunct)
'All Engine Distributing' in Fresno CA. They had so many cool JDM engines! I'd go in just to see what he had, and occasionally I'd take one or two home.

I got 12k for all the engines and parts I had. That was back in '06.
One shot, one kill.

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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Tue Jun 25, 2019 3:48 pm

The engine has landed in L.A.. I expect it to be delivered to Portland Engine Rebuilders within the next two weeks.


more to come..... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Mon Jul 08, 2019 3:44 pm

My new Hemi.....

Image

and it wasn't 10 minutes before I got bit..... :lol:

Image


There was one shipping tragedy... and one I feared all along.... they (R&L Shippers) shattered the distributor :evil: :evil: :evil: :evil:

Image


The WHOLE reason I bought THIS 5V-EU was this one had a distributor!!! At least they didn't break the lower half of it - that is the oil pump drive!


And a bit more disappointment... the reported mass of the engine was incorrect..... :cry: :cry: :cry:

While light for a V8, it isn't anywhere near the reported 130 kilos :roll:

Image


More to come.... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Fri Jul 12, 2019 8:38 am

Dismantle....

Image

Image


Image


Intake rocker layout

Image



Image



more to come.... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Tue Jul 16, 2019 2:46 pm

The gaskets came out... kinda as you can see in the one photo above... and below

Image

I've sent the gaskets to Cometic, they SAY they can make custom gaskets... we shall see......????



so, while waiting to hear back on the gaskets....



oiling for the cam lobes, and lifters. Interesting "windage tray" for the camshaft, and note the machined-in channels to direct oil @ the camshaft. Additionally note the structure - from the cam cap bolts holes are along the same rib as the head bolt holes.

Image




Main studs.... full counter weighted crank, and "giraffe" aka diesel type connecting rods - similar rod type to the one used in 4U-GSE/FA20 engines

Image


more to come..... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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oldeskewltoy
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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Fri Jul 19, 2019 1:11 pm

Image



liner info

Image



Timing chain and tensioner

Image

Image
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Thu Aug 01, 2019 8:05 am

I want to thank Robert(and his wife), owner of https://etsuryu.com/. His help in this project has been immense, from helping me find this engine, to helping me secure the starter, and the service manual, to now saving me a great deal of time, and frustration.

As you see in previous posts my phone has been very useful when it comes to translations.... but, it hasn't been perfect, and I've used my collective automotive knowledge to "assist" where it says the right words, but gets structure a bit wrong.

Well, this is the most complex page I've had to translate.... and my phone had a really tough time with it, it took about 10 passes with the phone before it made any sense....

Image

but I was not feeling confident about this translation, so I asked Robert if he would assist me, the following day he had sent me this, translated by his wife (who is Japanese)

Image


While some of my phones translation was somewhat correct, what I had as the spec, and what is written were DIFFERENT... my translation was set 1mm down, measure to 2mm down, was very wrong. The spec was to set the lifter 2mm down then test/measure it 1mm further. My method would have likely condemned all the lifters :(

So, thank you Wife of Robert ;)


more to come.... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Tue Aug 13, 2019 4:22 pm

The gaskets have arrived, I'll be laying them up on the block and intake manifold in the next day or 2 to make sure it all lines up. Still don't have timing cover, or water pump gaskets - I'll be concerned about that later if I need too.

In the mean time I've been thinking about the ignition system since the shipping company busted the distributor, which may be(is likely) a blessing in disguise.

So my plan for the ignition is a crank sensor, and cam sensor.

For the crank sensor, I'll take an existing crank sensor and mount it to the crank pulley, making sure to get it re-balanced.

For the cam sensor.....

Image

The plan is to use the existing pick up @ the very base of the distributor - remove all but one of the spokes, and then use that spoke as the cam sensor. The remaining cast housing will be machined away at the base/mounting flange, and a small cap placed over the pick up and single spoke to keep dirt, and debris out of the way.

This should allow me to run the ignition, and if I want sequential injection. As of now, I'm thinking of running GM type wasted spark coils so I can retain the hemi look with individual wires going to each plug.



More to come..... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Re: Lit'lphant - Toyota's Hemi V8

Postby oldeskewltoy » Wed Aug 14, 2019 10:00 am

Now this is a development.....

About the time the engine arrived, I was still working on a transmission solution. The easy answer appeared again on Yahoo Japan... https://page.auctions.yahoo.co.jp/jp/auction/m54403331

Image

It is an A340E for an early 90s Century, it comes with the bell housing, unique to Century, and torque converter, also unique to Century. So I bought it.


While it does provide me a transmission solution, at the time I wasn't aware of THIS:

Image


I've spoken with the adapter's manufacturer, and he believes the 5V-EU bell housing can also be adapted!!! Since the bellhousing doesn't get modified, I'm left now with a "2 in 1" option. I can use the manual trans set up while I'm still able, and if need be, I can swap the auto back in at a future point in time IF I can no longer drive a shift, or I'd want to for some other reason...???


DEFINITELY more to come....... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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