Nissan 200SX Club - South Africa

Hi guys, CA is getting on and I want to do a SR conversion.......I know many of you have done this or had it done and posted info on this. Does anyone know where I can get a detailed list of what is required to fit the motor and gearbox? eg is the S13 diff ratio the same or compatible to the SR gearbox ratios? can CA engine and gearbox mounts, S13 crossmember be used? I intend to go aftermarket ECU and of course bigger turbo etc.
Thanks guys, I hope I get some useful info.
Cheers

Dude

Did you buy the Hump back Black top and GBoX????????????

I wanted it!!!!!

Theres one thats sent to Kzn, on Tuesday

Hey man!

If you did het the humpback one I can help... a bit.

The stock engine mounts etc fits the SR. the prop slides in perfectly and the gearbox mount is also 100% match.

There is a plug from the speedsensor you will need to change to the CA gbox's one.

Use the CA power harness on the lefthand side of the motor. much easier....

aircon fittings don't match, get CA aircon pump.

exhaust will need to be changed or get a diff flange welded on.

get a SR20 radiator and some nice electric fans.

I have a GT28RS on mine. had no fitting issues at all. straight bolt on.

You said you are going aftermarket management. Good! the stock setup is K#K hard to get running. (ask me i know!)

I know people always say that its a straight swap. and it is actually... its just for someone without experience and doing a motor swap for the first time... its kinda hard.

but yeah. if you have done something like this or you have experience you should be done very quickly.

my 2 3/4 cents....

Thanks Riekert/VEECEE, appreciate the feedback, I have not bought a motor yet and not sure which (SR20T) one to get, black top, red top, hump etc Any suggestions on the motor?

I think the only advantage you'll have with the humpback is the VVT and it might have less mileage on.

But otherwise the red/black top S13 SR20 is also very good. look at VC's motor.

it all depends where and for how much you can get it. also what you get with.

The Hump back and Blacktop has cooling fins and the Hump back also has different pistons and it is claimed that the oi squirts are more effecient.

X2 types of Hump backs VCT and Dual VCT.

Kriekert, Is it the Disco Potato?????
How much????
Where from???

PM Me!

Drillergy wrote:The Hump back and Blacktop has cooling fins and the Hump back also has different pistons and it is claimed that the oi squirts are more effecient.

X2 types of Hump backs VCT and Dual VCT.

Kriekert, Is it the Disco Potato?????
How much????
Where from???

PM Me!

PM'ed...

On the 2 types of Humpback motors....

You don't really get the S15 motor in SA... your more likely to get the S14 one....

Some info on the diff motors from Drift-Connection.com

Specifications for the Red Top SR20DET
(Found on the 91-93 180SX & Silvia)

* Displacement: 1998cc (2.0 liter)
* Cam Type: DOHC 16 valve, chain driven cam sprockets
* Bore & Stroke 86mm x 86mm
* Compression: 8.5:1
* Horsepower: 205ps @ 6000rpm
* Torque: 203 ft/lbs @ 4000rpm
* Stock Boost: 7 psi
* Throttle Body Bore: 60mm
* Injector Size: 370cc/min
* Turbo Specs:
* Compressor: T-25, 60 trim 56mm BCI-1 compressor.
* Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
* Center Section: Journal bearings
* Performance:
The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce 230-250 RWHP at safe boost.

Specifications for the Black Top SR20DET
(Found on the 94-98 180SX)

* Displacement: 1998cc (2.0 liter)
* Cam Type: DOHC 16 valve, chain driven cam sprockets
* Bore & Stroke: 86mm x 86mm
* Compression: 8.5:1
* Horsepower: 205hp @ 6000rpm
* Torque: 203 ft/lbs @ 4000rpm
* Stock Boost: 7 psi
* Throttle Body Bore: 60mm
* Injector Size: 370cc/min
* Turbo Specs:
* Compressor: T-25, 60 trim 56mm BCI-1 compressor.
* Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
* Center Section: Journal bearings
* Performance:
The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce 230-250 RWHP at safe boost.

Specifications for the S14 Black Top SR20DET with VTC
(Found on the 95-98 Silvia)

* Horsepower: 220hp @ 6000rpm
* Torque: 203 ft/lbs @ 4800rpm
* Turbo Specs:
* Compressor: T-28, 60 trim 60mm BCI-1 compressor in T-04B housing
* Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
* Center Section: Ball Bearing
* S14 SR20DET's use a different ECU and harness, these are extremely expensive and hard to find.
* Variable valve timing system and a different turbo are the significant changes from the S13 SR20DET engines.
* The S13 uses a "low port" intake design vs. the S14 "high port" design.
* Performance:
The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The stock engine should produce 250-260 RWHP at safe boost using stock turbo. Upgrading turbo, fuel and rest of need parts will yield 300-375.

Specifications for the S15 Black Top SR20DET
(Found on the 99+ Silvia)

* Horsepower: 250ps @ 6000rpm
* Transmission: 6 Speed, Close Ratio
* Injector Size: 480cc/min
* Turbo Specs:
* Compressor: T-28, 60 trim 60 mm BCI-1 compressor in T-04B housing
* Turbine: Inconel turbine wheel. Cast divider wall between turbine discharge and wastegate.
* Center Section: Ball Bearing
* This engine is expensive and hard to get. If you are on a tight budget, please consider other options as the money you save from buying this engine can be better used to build up a really nice red top.
* Additions: 6 speed manual transmission. The 6 speed cannot be used on the S13 and S14 motors, and uses a different driveshaft. Speed sensor is located in the differential. The 6 speed is cool, but is not as strong as the 5 speed from the older cars. There is basically 6 gears inside the same housing that was designed to hold 5 gears. This makes the gears smaller and weaker, therby breaking more often.
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YEa that will help SR coverters decision.

The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce 230-250 RWHP at safe boost.

Can it take up to 1bar boost?????

Drillergy wrote:YEa that will help SR coverters decision.

The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce 230-250 RWHP at safe boost.

Can it take up to 1bar boost?????

Jip. stock T28 will be able to handle 1 bar...

Riekert wrote:

Drillergy wrote:YEa that will help SR coverters decision.

The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce 230-250 RWHP at safe boost.

Can it take up to 1bar boost?????

Jip. stock T28 will be able to handle 1 bar...

Unfortunatly your injectors wont, you will be running the injectors at max duty cyle and probably running lean.....

mario_200sx wrote:

Riekert wrote:

Drillergy wrote:YEa that will help SR coverters decision.
Can it take up to 1bar boost?????

Jip. stock T28 will be able to handle 1 bar...

Unfortunatly your injectors wont, you will be running the injectors at max duty cyle and probably running lean.....

ah yes. mario is correct... kinda forgot to mention that...