Twin Screw Supercharger

The 1UZFE EGR Delete Kit is available for sale here.
The car is a production body from DAKAR.

Most weigh more than the owner appreciate.

Mine runs 12.5 x 15 tyres. On the rims they would weigh 30KG a piece.

I also have additional bars in the roll cage and laminated diffs that can add a bunch of weight.

The stock Rover engine is around 50kg lighter than the 1UZ. I can lift and carry a Rover engine and I wouldn't think of doing that with a 1UZ.

Little things like 7 mudflaps made from 10mm conveyor belting and protective covering on almost everything adds weight.

I figure if Ford Lightnings can turn low 12's I should get down to 11's as I'm almost 700kg lighter.
 
That is an amazing setup! I do have one question: Can it be possible to use the existing 6 rib belt system to drive that supercharger? I was a little confused as to why the 8 rib system is used. Does the curent 8 rib drive only the supercharger, whielt he 6 rib drives all the other acessories? Thanks
 
Hi Andrew,
The standard 6 rib is used in most cases, Rod opted for some serious boost, hence the seperate 8 rib drive, no chance of slip,
 
Hi Andrew,
There is an 8 rib replcement pulley kit to change the stadard 6 rib set-up,
gives the new
8 rib 165mm crank pulley (billet)
8 rib a/c
8 rib p/s
8 rib air pump
8 rib tensioner
8 rib idlers

Drop me a line if you have questions, will post a picture of the pulley set-up.
Sorry about the posts, computor and fingers arn't talking, maybe Rod can fix, :-)
Cheers
Andrew
 
I personally like that fact supercharger should be driven independently. One example would be the Ford Lightning. This is good if something happen to the supercharger (slip or broken) the car still run. If the supercharger is driven by the single belt and some happen to the supercharger belt, then you need a towl truck.
 
The 8 rib belt is simply insurance.

If you visist any Lightning Site (try www.azloc.com) you will find there are all sorts of "fixes" for slipping belts. The Fords use an 8 rib belt and some of their blower pulleys are only 21/2" diameter and slip is a real problem.

They use double idlers immediately under the blower pulley to get as much wrap on the blower pulley as possible.

The system on my engine isn't simple or cheap but I can bet it will be 10 times as reliable at 18lb boost than a 6 rib belt running all the other accessories.
 
Wow, that 8 rib full replacement sounds -really- nice! I would love to see a picture. As for fords, don't they use the roots blower, which typically requires a lot more HP to turn? I wonder if the twin screw would be OK with the 6 rib. Although, with a kit ready to go, why risk it I guess.
 
Actually the information posted by Richwood on the Soarer UZZ32 is not totally acurate.

The engine does not sit any further forward at all. Both block and engine mounts are the same as UZZ30 and 31.

What happens is that everything on the front of the engine sits 42mm further forward due to the large plate that holds the alternator and hydraulic pump. There is a double belt harmonic balancer. Belt closest to engine runs the hydraulic pump only. Then the second belt runs all the normal stuff.

So the only issue with a UZZ32 is hooking up the nose of the blower to the main belt, which is 42mm further towards the front of the car than on a normal Soarer. So in effect, the blower position does not change at all. What changes is that you need to either lengthen the snout of the blower or run with a custom pulley that sticks out further to line up with the front belt.

It's only the front pulley that won't clear the bonnet (hood).

To qualify, I have 7 UZZ32's in my stable. 2 are fitted with C's blower kits from Japan, and the third is about to run a Magnuson M90 from a USA Ford and will be sitting on a Richwood manifold.
 
Image below shows C's blower mounted in a UZZ30 Soarer (SC400) with coil springs.

You can see that the only difference is the pulley, not snout length or motor changes.

You can also see the difference in the way other parts are mounted to accomodate the large metal plate.

Lower image shows a 32 front plate. Harmonic balancer mounts in the large hole. No plastic timing mark covers here.

Hydraulic pump to lower left, with alternator above. Totally different configuration.

Engine fan pump stays in the same place and mounts to the front of the 32 front plate.
 
hi all,

just joined the forum. Here's a quick history of my 1UZ-powered truck:

1UZ-FE transplanted and completed into a Land Cruiser 79 series pick-up truck on March 31, 2003 in North Borneo. Purchased Opcon MX420 twin-screw from Andrew of Richwood Technologies 2004-end. Have not installed to-date due to technical difficulties and other issues. Finally found someone yesterday who may be able to do it but need help on where to obtain the following items for a 1UZ-FE before I proceed with the install & tuning:

(1) Forged Pistons

(2) Thicker-than-stock head gaskets


All the SC parts are from Richwood Technologies (Andrew) and water injection kit to suit is from a company in Texas (can't recall, will check again). All items mentioned are still in their boxes.

Would appreciate any info on items (1) & (2).

Thank You
 
UZZ32,

I think Andrew should have used more words to make it clear to the retentive ones out there that the front of the engine is 40mm further forward.

I think you're playing semantics here.

As you say the front of the engine is 42mm further forward. I guess that make Andrew doubly wrong!

Regardless he was right in saying the blower pulley foulds the bonnet/hood but it was easily fixed.

Lloyd,

Forged pistons are available from Ross in the US in 8.5:1 compression ratio so you could get away without the thick head gaskets.

Check the Group Purchase area plus the wanted to buys and for sales.

You could try asking Lextreme in a PM about the pistons as he organised both GP's.
 
It might be retentive but it's accurate - I certainly took Andrew's post to read that the entire engine is mounted 40mm further forward in the UZZ32.

Without detailed and accurate information this might as well be any other forum full of half-truths and misunderstandings.
 
halo Zuffen,

thanks for the info you've provided. Mr. David (site admin) and Mr. Rob Hayden of Sydney have contacted me regarding the pistons.

Great site and very interactive compared to other motor-forums I've joined.
 
Been flat out lately and just catching up on all of the new threads.
Thats a killer new setup of yours there Rod, very impressive indeed.
Hope to see it one day in the flesh.
Cheers
Trev
 
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