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| Revision as of 15:17, 5 May 2007 Adderas (Talk | contribs) (->Choose a CA engine) <- Previous diff |
Revision as of 14:23, 6 May 2007 Dattodude (Talk | contribs) (Added CA18 pre-installation advice) Next diff -> |
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| * [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=24581&forum=1 fuel tank issues - need osme advice] | * [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=24581&forum=1 fuel tank issues - need osme advice] | ||
| Use high flow rated Bosch EFI pumps, Walbro pumps (watch out for the Ebay fakes). | Use high flow rated Bosch EFI pumps, Walbro pumps (watch out for the Ebay fakes). | ||
| + | |||
| + | = Preparing the Engine before Installation = | ||
| + | For a second hand CA18det, these are some pre-install activities: | ||
| + | * Get engine block water/oil galleries cleaned out professionally. | ||
| + | * Get radiator professionally cleaned and pressure tested. | ||
| + | * Remove MAFM and clean the hotwire on the Mass Air Flow Meter. Use carby cleaner and cotton bud. | ||
| + | * Make sure MAFM is not clogged with oil from sitting upside down in a container. | ||
| + | * Remove and clean out the idle control unit on side of plenum. Use Carby Cleaner. | ||
| + | * Remove and clean the cold idle valve underneath throttlebody. Use Carby Cleaner | ||
| + | * Remove and clean the CAM covers, soak them in Kero for 30-60mins to clean out the oil strainers. | ||
| + | * Remove/Clean and reseal the cam cover rubber seals. | ||
| + | * Check head bolt torque settings. | ||
| + | * Remove and clean the Throttle body. Use Carby cleaner. Make sure that the shaft bearings aren't worn. | ||
| + | * Clean out intake side crank breathers. They can be full of crystalline carbon crap, causing high rev oil retention in head. | ||
| + | * Timing belt tensioner bearings. Can be ordered from Nissan (expensive) or can press the bearings out of holders and order bearings from Bearing supplier using the numbers on bearing oil seal. Then repress the bearings into the Nissan holders. | ||
| + | * Front Camshaft lip seals ($15 for both), Half moon seals at back of cam covers ($20 for both). | ||
| + | * Breather hoses on intake side can go hard and split, causing oil leaks. If they are hard, try to replace them with silicon hose, or landcruiser heater hose (but be prepared to replace them every 2 years). | ||
| + | * Check water hoses used to heat plenum on front and back of plenum. Remove them if in above zero deg C climate. | ||
| + | * Be sure to install the plenum rear plate gasket with the locating hole oriented to the top of the plenum. It will start leaking within a couple of days if the hole is on the bottom. | ||
| + | * Check compression on all 4 cylinders (fuel/ignition disabled), should be within 10psi, and all over 170psi. | ||
| + | * If one cylinder has less compression, remove plug, add a tablespoon of oil, and recheck, if it goes up, it's rings. Otherwise headgasket or scored bore. | ||
| + | * Try to use factory waterpump, some aftermarket ones aren't real good. Mine had it's pulley/fan holes drilled off centre. | ||
| + | * Always use Nissan thermostat. Cheap ones (Ryco) from K-mart aren't good enough. | ||
| + | * Buy NGK platinums from Nissan at $18-20 each. They are fine up to 20 PSI boost, unless you have a bad tune which melts them... | ||
Revision as of 14:23, 6 May 2007
Swapping a wikipedia:Nissan CA engine into a Datsun 1200 is perhaps the most common swap. It provides abundant horsepower (up to 400 hp) in a small, lightweight package. The CA18DE is a dual overhead cam engine, while the CA18DET if a factory turbo engine. It will fit into the 1200 without cutting the firewall or body. You will additionally need a stronger rear axle assembly to cope with the extra torque that the CA-series puts out.
For information on choosing a rear axle, see Rear Axle Swaps.
Contents |
Cost
Good used CA engines cost $400+ USD
Front-cut cost $1500-$2500 USD
Entire package with CA18DET and intercooler, fitted by a professional shop cost $20,000 AUD
See:
Choose a CA engine
- CA16DE (Only available in FWD format)
- CA18DE
- CA18DET
- CA20 (Rocket... Boost it up nigger!)
Choose a Transmission
Stumpy Transmission
The stumpy Skyline gearbox, refers to the R30 Skylines with the L24 Engines. The R30 came in sedan and hatchback styles.
To use the gearbox on a CA18, you must switch out the front section of the gearbox from a longer S13 gearbox, or a more common CA20 (910 Bluebird Series 3) gearbox. There are conflicting reports about some of the swaps needing a different sized bearing to make this 'gearbox surgery' a success.
Once modified, the "stumpy" transmission bolts right into the 1200, and the gearshift lever comes up in the right place. Other CA transmissions will require you to cut a new hole in the tunnel farther back.
See:
If you wonder why people go for the stumpy 5 speed - here is a comparison photo between (from right to left) a 56 series (A12 gearbox) a 60 series (A14/A15 gearbox) and the stumpy 5 speed.
S13 Silvia/180SX Transmission
- Manual tunnel needs pretty much all of tunnel replaced from 120Y, or 1200 Automatic tunnel. - Most will need a box section cut into the shifter area to clear the shifter area on the gearbox.
== Series 3 Bluebird (910) CA20E/CA20 5 Speed - This is a straight fit, and for low power applications this is a cheap alternative. Especially if you can find a low milage example.
Fuel Line, Pumps and Tank
Use high flow rated Bosch EFI pumps, Walbro pumps (watch out for the Ebay fakes).
Preparing the Engine before Installation
For a second hand CA18det, these are some pre-install activities:
- Get engine block water/oil galleries cleaned out professionally.
- Get radiator professionally cleaned and pressure tested.
- Remove MAFM and clean the hotwire on the Mass Air Flow Meter. Use carby cleaner and cotton bud.
- Make sure MAFM is not clogged with oil from sitting upside down in a container.
- Remove and clean out the idle control unit on side of plenum. Use Carby Cleaner.
- Remove and clean the cold idle valve underneath throttlebody. Use Carby Cleaner
- Remove and clean the CAM covers, soak them in Kero for 30-60mins to clean out the oil strainers.
- Remove/Clean and reseal the cam cover rubber seals.
- Check head bolt torque settings.
- Remove and clean the Throttle body. Use Carby cleaner. Make sure that the shaft bearings aren't worn.
- Clean out intake side crank breathers. They can be full of crystalline carbon crap, causing high rev oil retention in head.
- Timing belt tensioner bearings. Can be ordered from Nissan (expensive) or can press the bearings out of holders and order bearings from Bearing supplier using the numbers on bearing oil seal. Then repress the bearings into the Nissan holders.
- Front Camshaft lip seals ($15 for both), Half moon seals at back of cam covers ($20 for both).
- Breather hoses on intake side can go hard and split, causing oil leaks. If they are hard, try to replace them with silicon hose, or landcruiser heater hose (but be prepared to replace them every 2 years).
- Check water hoses used to heat plenum on front and back of plenum. Remove them if in above zero deg C climate.
- Be sure to install the plenum rear plate gasket with the locating hole oriented to the top of the plenum. It will start leaking within a couple of days if the hole is on the bottom.
- Check compression on all 4 cylinders (fuel/ignition disabled), should be within 10psi, and all over 170psi.
- If one cylinder has less compression, remove plug, add a tablespoon of oil, and recheck, if it goes up, it's rings. Otherwise headgasket or scored bore.
- Try to use factory waterpump, some aftermarket ones aren't real good. Mine had it's pulley/fan holes drilled off centre.
- Always use Nissan thermostat. Cheap ones (Ryco) from K-mart aren't good enough.
- Buy NGK platinums from Nissan at $18-20 each. They are fine up to 20 PSI boost, unless you have a bad tune which melts them...
Upgrading the CA engine
Injectors
Injector changes almost certain require a tune change, which needs either an aftermarket ECU, or a chip to be modified/burned and inserted into a modified factory ECU.
General recommendations for high powered CA18s require 440cc to 700c injectors to be used.
Turbo Choice
Sensible Street -> T28G, GT28 (s15 jdm), GT2810 -> GT2835. Drag Racing -> GT2840, Various large T3, HKS, Trust or GReddy offerrings.
Camshafts
Tomei offer: Hydraulic -> 256 deg to 270 deg duration at a nominal lift of 8.8mm Solid -> 264deg to 270 deg duration with 9.25 or 10.25 lift. Requires solid lifters and shims.
HKS: All discontinued, and no longer available new.