Speeedy
Member
Hey guys,
I just checked when I updated my build up thread last time. It’s over three years ago. OMG! So it’s time to tell you what’s going on with my MKIII 1UZ twin turbo project.
I’ve done a lot of work, rebuild the block, changed parts and things, build custom parts and so on. I’ve done tons of pictures and some of them I’m happy to share with you.
So, where to start?
Let’s start at the end of the life of one Cometic MLS head gasket in 2010 @ 1.3bar of boost on E85 fuel. I’m not realy sure why it’s blown, but I’ve done a few changes when I rebuild the engine to prevent this. After taking off the heads I decided to rebuild the engine with another head gasket, thicker head bolts, thicker block sleeves and modified heads with bigger valves and cams.
But at first an overview of the engine specs and parts...(fat letters = changed or modified parts)
Power/Torque (@ the crank) @ boost
590hp; 774Nm @ 0.9bar
682hp; 884Nm @ 1.3bar
739hp; 958Nm @ 1.5bar
Dyno sheets here:
http://www.lextreme.com/forums/showthread.php?t=11738&page=4
- 1UZ block with custom sleeves (4mm wall thickness) with oil nozzles for piston cooling
- custom CP Pistons CR 8.5, 88.25mm bore size (teflon coated)
- H-Beam rods with L19 ARP Bolts
- Stock crankshaft; fine balanced
- ATI crank pulley (2JZ)
- ARP Head studs 12mm (4cyl. Ford Pinto)
- ARP Flywheel Bolts
- ACL Bearings
- custom head gaskets, self made Cometic MLS PHUZION
- modifed heads
- Kelford 264° N/A cams
- oversized Ferrea 2JZ valves, IN 34.60mm/EX 30.00mm, modified stem length
- shimless buckets (Toyota Prius)
- stock intake
- 1200cc P&H RC Injectors
- Stock fuel rails
- Fuelab FPR
- Walbro 485L/h Fuel Pumps (2)
- TIAL Q 50mm BOV
- Custom Manifolds (mild steel) T28
- 2x GT2871R turbos (int. Wastegate), .56 Trim; A/R .86 exh.
- Custom Turboback Exhaust (3,5")
- 100cpi catalysator
- R154 Tranny with 1UZ Bellhousing and custom adapter
- 2JZ-GTE HKS GD PRO custom QUAD DISC Clutch (custom hub that fit the R154 input shaft, 1UZ starter ring)
- custom copper/brass radiator
- Custom Intercooler (“Bell Intercooler” Core 27.5"x12"x4.5")
- Intercooler Piping: Turbos to IC: 60mm; From IC to TB: 90mm
- Mocal oil cooler (only for testing)
- AEM EMS (1900’s universal)
- MSD Blaster SS Coils (8207)
- M&W CDI
- Custom Plug Connectors
- Spark Plugs: NGK BKR8EIX
- K-Type EGT Sensors / each cylinder / each Turbo
- AEM K-Type AMP
Car Specs:
- ’89 Supra MKIII Turbo
- K-Sport Coilover Kit
- Work Wheels Rezax Universal 9.5 & 11x19"
- 235/35R19 front / 305/30R19 rear
The engine performs very strong now on ROZ100 octane fuel. After remapping we are running leaner and with a bit advanced ignition timing. It’s a tourque monster and there is no traction till fourth gear on 305/30 R19 wheels @ 1.5bar of boost. Ok, the tires are old and I think with semis there should be traction in fourth gear (maybe in third, too). But then I’m not sure if the R154 tranny would be still on life. Haha...!
I did some testing with a custom short runner intake manifold. But it seems, that the runner was too short and the engine performed like an old horse without any punch. A lot of work and at the end of the day...bad results. The fuel map was very flat all the time till 6000 rpm. Maybe at 10000rpm or higher this intake would show some higher numbers. I will do some more testing with different intakes, maybe in 2015...
I would like to do some testing with E85 and higher boost levels too.
But before increasing the boost, I think I have to change the transmission. Tremec T56 Magnum is, what I want to buy...
I just checked when I updated my build up thread last time. It’s over three years ago. OMG! So it’s time to tell you what’s going on with my MKIII 1UZ twin turbo project.
I’ve done a lot of work, rebuild the block, changed parts and things, build custom parts and so on. I’ve done tons of pictures and some of them I’m happy to share with you.
So, where to start?
Let’s start at the end of the life of one Cometic MLS head gasket in 2010 @ 1.3bar of boost on E85 fuel. I’m not realy sure why it’s blown, but I’ve done a few changes when I rebuild the engine to prevent this. After taking off the heads I decided to rebuild the engine with another head gasket, thicker head bolts, thicker block sleeves and modified heads with bigger valves and cams.
But at first an overview of the engine specs and parts...(fat letters = changed or modified parts)
Power/Torque (@ the crank) @ boost
590hp; 774Nm @ 0.9bar
682hp; 884Nm @ 1.3bar
739hp; 958Nm @ 1.5bar
Dyno sheets here:
http://www.lextreme.com/forums/showthread.php?t=11738&page=4
- 1UZ block with custom sleeves (4mm wall thickness) with oil nozzles for piston cooling
- custom CP Pistons CR 8.5, 88.25mm bore size (teflon coated)
- H-Beam rods with L19 ARP Bolts
- Stock crankshaft; fine balanced
- ATI crank pulley (2JZ)
- ARP Head studs 12mm (4cyl. Ford Pinto)
- ARP Flywheel Bolts
- ACL Bearings
- custom head gaskets, self made Cometic MLS PHUZION
- modifed heads
- Kelford 264° N/A cams
- oversized Ferrea 2JZ valves, IN 34.60mm/EX 30.00mm, modified stem length
- shimless buckets (Toyota Prius)
- stock intake
- 1200cc P&H RC Injectors
- Stock fuel rails
- Fuelab FPR
- Walbro 485L/h Fuel Pumps (2)
- TIAL Q 50mm BOV
- Custom Manifolds (mild steel) T28
- 2x GT2871R turbos (int. Wastegate), .56 Trim; A/R .86 exh.
- Custom Turboback Exhaust (3,5")
- 100cpi catalysator
- R154 Tranny with 1UZ Bellhousing and custom adapter
- 2JZ-GTE HKS GD PRO custom QUAD DISC Clutch (custom hub that fit the R154 input shaft, 1UZ starter ring)
- custom copper/brass radiator
- Custom Intercooler (“Bell Intercooler” Core 27.5"x12"x4.5")
- Intercooler Piping: Turbos to IC: 60mm; From IC to TB: 90mm
- Mocal oil cooler (only for testing)
- AEM EMS (1900’s universal)
- MSD Blaster SS Coils (8207)
- M&W CDI
- Custom Plug Connectors
- Spark Plugs: NGK BKR8EIX
- K-Type EGT Sensors / each cylinder / each Turbo
- AEM K-Type AMP
Car Specs:
- ’89 Supra MKIII Turbo
- K-Sport Coilover Kit
- Work Wheels Rezax Universal 9.5 & 11x19"
- 235/35R19 front / 305/30R19 rear
The engine performs very strong now on ROZ100 octane fuel. After remapping we are running leaner and with a bit advanced ignition timing. It’s a tourque monster and there is no traction till fourth gear on 305/30 R19 wheels @ 1.5bar of boost. Ok, the tires are old and I think with semis there should be traction in fourth gear (maybe in third, too). But then I’m not sure if the R154 tranny would be still on life. Haha...!
I did some testing with a custom short runner intake manifold. But it seems, that the runner was too short and the engine performed like an old horse without any punch. A lot of work and at the end of the day...bad results. The fuel map was very flat all the time till 6000 rpm. Maybe at 10000rpm or higher this intake would show some higher numbers. I will do some more testing with different intakes, maybe in 2015...
I would like to do some testing with E85 and higher boost levels too.
But before increasing the boost, I think I have to change the transmission. Tremec T56 Magnum is, what I want to buy...
