VolvoScout
Member
- Joined
- Jun 4, 2012
- Location
- Upstate, NY
Recently completed my D24T build and installed it into my 240 sedan.
Here are the required parts/modifications that I encountered to make this combo work...
1. Turbo Block (Has oil Squirters)
2. Turbo Pistons (have cutouts for oil squirters)
3. Turbo Injection Pump (better fuel control for boost)
4. If not using stock heat heat exchanger, block off coolant port above thermostat.
5. Turbo intake manifold and associated piping
6. Turbo exhaust manifold and associated parts
7. Turbo (stock or similar size because there is very little room between the compressor wheel and the frame rail)
8. Modify 240 air filter box connections or use cone filter
9. Oil filter adapter from 740 to reposition filter and add oil feed for turbo
10. Smaller alternator tensioner bracket from 740
11. Fan/altenerator bracket from 740, which pushes the alternator forward to avoid contact with turbo hoses.
12. Modify the NA Pan to accept the oil return from the turbo. Can be done by grafting the section form the turbo pan.
13. Turbo downpipe will need to be slightly modified (bent upwards) as if not modified, it will cause the entire exhaust to sit a few inches above the ground.
14. Turbo crankshaft (mates to turbo oil pump)
15. Turbo oil pump (larger capacity)
16. Shim the engine mounts to allow clearance for the turbo near the frame rail and for the turbo oil return near the power steering rack.
I shimmed 0.22" on the passenger side and 0.14" on the driver side.
17. Injectors with a higher pop pressure (appx 155 BAR) and 293 or 274 nozzles
18. Use the NA throttle spool, not the turbo throttle spool
19. Use the NA dipstick tube with the NA oil pan. The turbo dipstick tube in the block, will not fit with the NA pan. Plug the tube opening in the turbo block.
20. If using an automatic transmission, the turbo will be in the way of the hard lines to the radiator. Replace steel lines with durable rubber hoses to radiator.
21. Use the 240 D24 NA bellhousing as the turbo bellhousing will clock the engine/transmission incorrectly(the D24T sits upright in the 740, compared to a slant in the 240)
Things that should be considered if doing this build...
1. Adding Air-Oil Cooler
2. Adding Intercooler
3. MLS Headgasket
4. ARP Head Studs
5. Reconditioned radiator to handle extra heat
6. Manual boost controller to up the boost
Here are the required parts/modifications that I encountered to make this combo work...
1. Turbo Block (Has oil Squirters)
2. Turbo Pistons (have cutouts for oil squirters)
3. Turbo Injection Pump (better fuel control for boost)
4. If not using stock heat heat exchanger, block off coolant port above thermostat.
5. Turbo intake manifold and associated piping
6. Turbo exhaust manifold and associated parts
7. Turbo (stock or similar size because there is very little room between the compressor wheel and the frame rail)
8. Modify 240 air filter box connections or use cone filter
9. Oil filter adapter from 740 to reposition filter and add oil feed for turbo
10. Smaller alternator tensioner bracket from 740
11. Fan/altenerator bracket from 740, which pushes the alternator forward to avoid contact with turbo hoses.
12. Modify the NA Pan to accept the oil return from the turbo. Can be done by grafting the section form the turbo pan.
13. Turbo downpipe will need to be slightly modified (bent upwards) as if not modified, it will cause the entire exhaust to sit a few inches above the ground.
14. Turbo crankshaft (mates to turbo oil pump)
15. Turbo oil pump (larger capacity)
16. Shim the engine mounts to allow clearance for the turbo near the frame rail and for the turbo oil return near the power steering rack.
I shimmed 0.22" on the passenger side and 0.14" on the driver side.
17. Injectors with a higher pop pressure (appx 155 BAR) and 293 or 274 nozzles
18. Use the NA throttle spool, not the turbo throttle spool
19. Use the NA dipstick tube with the NA oil pan. The turbo dipstick tube in the block, will not fit with the NA pan. Plug the tube opening in the turbo block.
20. If using an automatic transmission, the turbo will be in the way of the hard lines to the radiator. Replace steel lines with durable rubber hoses to radiator.
21. Use the 240 D24 NA bellhousing as the turbo bellhousing will clock the engine/transmission incorrectly(the D24T sits upright in the 740, compared to a slant in the 240)
Things that should be considered if doing this build...
1. Adding Air-Oil Cooler
2. Adding Intercooler
3. MLS Headgasket
4. ARP Head Studs
5. Reconditioned radiator to handle extra heat
6. Manual boost controller to up the boost
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