Andhi Satria

Greeting to all member.

My name is Andhi, and I am from Jakarta, Indonesia and new to this forum.

We race some sort of OFFROAD RACING much like LOORS or TORC in the states.

For the last 1 year, we have been building on our own, a FUll Tubular Offroad Race Truck with Chevrolet LS9 Engine. We have been using different types of LS3, LS6, LS7 and now we just got our hand on LS9 engine. This is the only LS9 in Indonesia.

I think to be involved in this forum would surely beneficial for me and our race team, as we can learn a lot from you all.

For sure, I will be asking lots of questions in regards with this LS9 Engine, as there are no one here in Indonesia using it or expert on this engine. So help me guys....


Would this be the right FORUM for Chevrolet LS9 based race car ?

Andhi Satria

Not trying to SHOW-OFF, but rather to share our passion in Off Racing which happens to use Chevrolet LS-9 Engine.

I am sure that you all here in this forum are much more expert that we are here far away (22 hours flying) from US.

Here we go....

• Location : Jakarta., INDONESIA
• Body : Full Fiberglass JEEP JK Concept
• Chassis : Full Tubular - In House by 4xFADWORKS aka. Daniel Zebedeus
• Design & Technical : In House by @TUNEUPDIGITAL aka. Andhi Satria
  
• Starting Date : January 2017
• Finish Date : July 2017
  
• 1st Engine Start-Up : July 2017
• 1st Car Testing : July 2017
  
  Front Suspension
• Custom A-ARM (In-House)
• Proformance Narrow Differential
• Reiger Racing Shocks 5-Way
• Axles : RCV Performance
• Pedal Box : Willwood (From Currie Enterprises)
• Brakes : Wilwood 6-Piston Caliper & Willwood Large Disc Brake (From Currie Enterprises)
• Wheel Hub : Custom Wheel-hub by PROFORMANCE Motorsport
• Wheel : ULTRA WHEEL X-103 17"x9" direct from ULTRA WHEEL
• Tires : MICKEY THOMPSON Race Tires
  
  Rear Suspension
• Custom Solid Axle (In-House)
• Housing : Currie Enterprises
• Diff : Strange Engineering Spool
• Reiger Racing Shocks 5-Way
• Axles : Strange Engineering
• Pedal Box : Willwood (From Currie Enterprises)
• Brakes : Wilwood 6-Piston Caliper & Willwood Large Disc Brake (From Currie Enterprises)
  
  Others :
• Wheel Hub : by CURRIE ENTERPRISES
• Wheel : ULTRA WHEEL X-103 17"x9" direct from ULTRA WHEEL
• Tires : MICKEY THOMPSON Race Tires
• Data Display : AIM-SPORT MXG Series
• Data Logging : AIM-SPORT MXG Series
• Electronic Switches : CARTEK Electronics
• Engine : MID ENGINE LS-9 Supercharger 750HP
• Transmission : FTI PERFORMANCE POWER GLIDE
• Torque Converter : FTI PERFORMANCE
• Flex Plate : TCI AUTO LS-9
• Transfer Case : SCS GEARBOX Quick Change Ratio
  
  COMING SOON :
• MOTEC M1 ECU : RACESPEC ONLINE
• Supercharger Upgrade : LINGENFELTER PERFORMANCE
• Accessories : Fuel Pump, Fuel Tank, Pressure Regulators, etc - (From Summit Racing)

homerandabe69

Let's see some pictures of the build. Very cool truck you guys have built.

meanjoe

Very cool truck, but you need to lower it and the front splitter is missing

Andhi Satria

Thank you very much


Thank you very much, This picture is taken only the first 30 minutes we managed to get the engine / transmission up and running.

There are more than the front splitter missing, there are tons of problems....

Andhi Satria

We have been MODIFYING Chassis Based and BUILDING Full Tubular Chassis for several race trucks using various engines.

5 years ago, it was mainly JEEP 4.0L engine converted to 4.2L / 4.5L / 4.7L / 4.9L.

Since then we have been using LS-1, LS-3, LS-6, and for the last 3 years several of the racer are using LS-7 Engine.

NOW, on this JK FULL TUBULAR, the racer came to us saying that he already had Chevrolet LS-9 Engine (not purchased as crate engine, but as engine from some corvette...)

He said that he is ready to move from

• FULL TUBULAR LS3 Front Engine 4-WD, Jeep Cherokee body into :
• FULL TUBULAR LS9 MID-ENGINE 4-WD, Jeep JK body

Body : Full Fiberglass JEEP Cherokee Concept
Chassis : Full Tubular - In House by 4xFADWORKS aka. Daniel Zebedeus
Design & Technical : In House by @TUNEUPDIGITAL aka. Andhi Satria

Andhi Satria

Build-Up # 1 - Jeep JK Full Tubular LS9 Mid-Engine, IFS, 4WD from Indonesia

• Location : Jakarta., INDONESIA
• Body : Full Fiberglass JEEP JK Concept
• Chassis : Full Tubular - In House by 4xFADWORKS aka. Daniel Zebedeus
• Engine : Chevrolet LS-9 SUpercharger - Mid Engine
• Design & Technical : In House by @TUNEUPDIGITAL aka. Andhi Satria
• Starting Date : January 2017

We had the chassis already build and coated in paint as the humidity in Indonesia would makes anything start to rust in 2 or 3 days.

This chassis is already made with the following spec :

• Full complete lower chassis without front IFS
• Chassis is built with MID-ENGINE Reverse Configuration, Transmission, Transfercase
• Chassis is built to accept front A-ARM In-House built or Custom Kit

Daniel Zebedeus of @4xFADWORKS works in finalizing the lower frame chassis.

We had meeting with the Musa Rajekshah as the Owner / Driver of this car to discuss what he wants to determine how we can integrate the items with other parts. what items we need to order, how to prepare and fabricate all of the mountings and 1001 other things.

After several discussion we all agree on the following :

Front Suspension

• It has to be IFS type
• We agree that we will make our own custom A-ARM (In-House)
• We will review several vendors who provide IFS Differential
• This differential has to be a NARROW TYPE CENTER Differential, as the WHEEL MOUNT SURFACE left to right is around 70-80" due to the design of the race track
• The differential has to be able to use 930CV type-21 to give a better axle angle for this narrow WMS
• Suspension has to be standard 3-way OFF ROAD suspension with additional CORNER CONTROL VALVE and BUILT-IN Bump-Stop capable of 14" to 18" depending on the race track
• Will be using Willwood Pedal Box (From Currie Enterprises)
• Will be using Wilwood Brake Rotor and the largest Wilwood 6-Piston Caliper with 17" Wheel
• Wheel Hub : Custom Wheel-hub by PROFORMANCE Motorsport
• Wheel : ULTRA WHEEL X-103 17"x9" direct from ULTRA WHEEL
• Tires : MICKEY THOMPSON Race Tires 35"

Rear Suspension

• Rear will be using Solid Axle, but at right side off-set, as the Mid-Engine would be close to the center of the differential. So the Driveshaft have to enter the diff either on the right side or the left side. engine (In-House)
• Diff Housing would be using Currie Enterprises 9" housing as they sell BARE HOUSING which we can weld the tubing into the housing
• Differential will be using SPOOL and 40-SPLINE AXLE, so this will be using Strange Engineering Spool and their 40-SPLINE AXLE
• Suspension has to be standard 3-way OFF ROAD suspension with additional CORNER CONTROL VALVE and BUILT-IN Bump-Stop capable of 18-24" of wheel travel
• Axles : Strange Engineering
• Will be using Willwood Pedal Box (From Currie Enterprises)
• Will be using Wilwood Brake Rotor and the largest Wilwood 6-Piston Caliper with 17" Wheel
• Wheel Hub : Custom Wheel-hub by PROFORMANCE Motorsport
• Wheel : ULTRA WHEEL X-103 17"x9" direct from ULTRA WHEEL
• Tires : MICKEY THOMPSON Race Tires 35"

Others :

• Wheel Hub : by CURRIE ENTERPRISES
• Wheel : ULTRA WHEEL X-103 17"x9" direct from ULTRA WHEEL
• Tires : MICKEY THOMPSON Race Tires
  
• Data Display : AIM-SPORT MXG Series, as these items fits into our needs and budget
• Data Logging : AIM-SPORT MXG Series, as these items fits into our needs and budget
  
• Electronic Switches : CARTEK Electronics, as these items fits into our needs and budget
  
• Engine : MID ENGINE LS-9 Supercharger 750HP
  
• Transmission : Due to the track straight of max 300meters and 15-25 hi-speed cornering and 5-10 slow speed cornering, the driver would like to use Automatic Transmission. We decided to use 2-Speed POWER GLIDE Automatic transmission from y FTI PERFORMANCE
• As for Torque Converter, we will be supplying to FTI PERFORMANCE the exaxt track layout, as well as LS9 Spec and sample LOG our our other race car, so that they can proposed the right combination
• Flex Plate : TCI AUTO LS-9
• As for Transfer Case, we need option of doing a quick change on over-all gearing ratio (front an rear) while leaving the front / rear diff to use 4.10 gearing as this is the strongest thickest gearng. If we had to change the gearing into 6.x or 7.x on the diff side, then the ring and pinion becomes weak. We decided to use SCS GEARBOX Quick Change Transfer Case

As everything is already agreed, its time to contact so many vendors in the states to get formal quotation, to asked about the availability of the items and whether they will sell to international customer (some of them do not want to sell direct to International customer), and getting formal quotation for freight from US to Singapore to Indonesia.

Andhi Satria

The following are also full tubular :

• Full Tubular
• Mid Engine LS-3 from CBM Motorsport, reverse mounting
• Rear Solid Axle
• Automatic 2-Speed Power Glide Transmission
• SCS GEARBOX, Quick Change Gear to Gear Transfer Case

DaOtherOne

Very cool

Andhi Satria

Thank you very much, surely soon enough I will need your expertise on LS9 engine... this is where I lack all of the knowledge

Andhi Satria

This is the Chevrolet LS-9 Engine seen from the back of the car.

The Engine is installed in MID ENGINE and REVERSE configuration. As a results all of the rotation from crankshaft, flexplate, transmission, transfer case would be reverse.

We might be reversing the rotation on the TRANSFER CASE using reverse rotation transfer case, OR reversing the rotation on the DIFFERENTIAL using reverse rotation ring and pinion.

Andhi Satria

Another view of the LS9 Engine installed

MTPZ06

Yes, you're in the right place for LS9 (and LS7) questions.

This is really cool. Grew up racing motocross, so naturally I was into off-road vehicles before ever getting into sports cars. Best of both worlds here...Interested to see how the forced induction LS9 works for your application.

Andhi Satria

LS9 in Custom Full Tubular Offroad Race Truck Chassis - Indonesia

Andhi Satria

We finished welding the FRONT UP-RIGHT (Knuckle) on our custom jig.

This -8 degree built-in camber with BILLET HOUSING which then we well Upper A-ARM Tab and Lower A-ARM Tab, as well as mounting for Steering TIE-RODS.

We are using 33-spline outer UNIT BEARING which will be connected to RCV CUSTOM 35-spline BALL-CV for the OUTER.

The INNER CV would be using 930 TYPE-21 from RCV. INNER and OUTER CV would be connected to custom RCV AXLES 35-35 spline.

Andhi Satria

We finished welding the FRONT UP-RIGHT (Knuckle) on our custom jig.

This -8 degree built-in camber.

We are using 33-spline outer UNIT BEARING which will be connected to RCV CUSTOM 35-spline BALL-CV for the OUTER.

The INNER CV would be using 930 TYPE-21 from RCV. INNER and OUTER CV would be connected to custom RCV AXLES 35-35 spline.

Andhi Satria

Finishing Draft

• UPPER A-ARM & LOWER A-ARM
• Chassis Mounting Point for A-ARMS
• Upright Mounting Point for A-ARMS

Then we cycle the front a-arms from full compress to full droop to see if we do get 20" of total wheel travel, without anything binding or hitting anything else.

As you can see. we use a very NARROW CENTER DIFFERENTIAL, in which the flange to flange mount on the diff is only 5" apart. Using this diff, we are able to get a long axle shaft for the 18" of wheel travel, without the 930-CV getting bind.

I will post detail pictures on each of the parts.

Andhi Satria

FRONT PROFORMACE DIFF - LS9 Full Tubular Offroad Race Truck Chassis - Indonesia

As for the front diff, we need to use a NARROW IFS diff, so that we can have longer axle shaft with the WHEEL MOUNT SURFACE width of 72"-80". This means by ONLY having front width of 72" measured from WHEEL MOUNT SURFACE, we are able to have up to 18" of wheel travel.

We review several options as we also have used and seen those diff in several other offroad race truck here in Indonesia.

We decided to use Proformance Ultra Narrow Differentials from Australia. As a matter of fact, we were the one to use their products here in Indonesia for Off Road Racing.

Proformance design the OUTER CASING special for us with additional Oil Pick-Up line on multiple places as we are planning to rotate the differential because all of the driveshaft rotation are on the wrong (reverse) direction.


Fitting the CV joints inside the Ring Gear allows for much longer axles shaft, resulting more wheel travel and protection of the CV boot from damage caused by Rocks and Debris. The Ultra Narrow Series Differentials seems is the Narrowest off Road Differentials we have reviewed.

The CV joint faces (Flange to Flange seperation) are only 40mm apart - a world first. Most diffs use small bearings and after modification the CV faces are typically 14-15 inches (450mm) apart.

Off road racing is all about wheel travel and short axles prevent wheel travel. The ultra narrow differentials have the CV joints fitted inside the ring gear, allowing for incredibly long axles.


The Ultra Narrow U290 uses a massive 11.25" (290mm) Ring Gear and massive 9.0" (230mm) Taper Roller Bearings to allow the use of Series 30 CV Joints

The CV joints mounted up inside the Ring Gear Carrier, allowing for much longer Axles and much more wheel travel. Inboard Cv joints also provide protection of the CV boot from rocks and debris common if off road use.

The 290 is available with a Spool (locked drive), Detroit Locker, Inboard Brakes and accommodates the heavy duty "Series 30" CV Joints with 40 or 44 spline axles.

Mr. Gizmo

Do you campaign the Truck and have sponsorship?

Andhi Satria

NO sir, we DONT have SPONSORSHIP and we DONT work with any vendor/s on our race truck,

The race truck carry branding only for :

• Name of Team : BLABLABLA Motorsport & 7SAUDARA
• Name of Builder : 4xFADWORKS
• Name of our Media Team : @tuneupdigital
• Name of Local Bank that we use for wire-transfer purchase items from states