SR20DET Red-Top and Black-Top specifications

[Phantom]

Hey guys I know a lot of you have had quite a few questions on the difference between the red and black top SR's so here they are, enjoy.

Red-Top S13 SR20DET 180SX 91-93 and Silvia 91-93Black-Top S13 SR20DET 180SX 94-98

Displacement: 1998cc (2.0 liter)Bore and stroke: 86mm x 86mmHorsepower: 205hp at 6000rpmStock boost: 7 psiCam type: DOHC 16 valve, chain driven cam sprocketsCompression: 8.5 : 1Torque: 203 ft/lbs at 4000rpmThrottle body bore: 60mmInjector size: 370cc/minTurbo 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

Aluminum alloy block and head with steel alloy sleeves. Distributorless, crank angle sensor activation ignition, direct fire coil packs. Stock SR's come with an internal wastegate, a knock sensor, a side mounted intercooler and a bypass valve that is routed back into the intake after the MAF before the turbo. Stock turbo outlet is 1 7/8 inches, inlet and throttle body are ~2 1/2 inches.

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 RWPM at safe boost.

Required parts for the install:Engine, transmission, altinator, starter, power steering pump, crank angle sensor, ECU, harness, MAFS, power transistor / ignitor chip.

Fitment:Fits inro US 240sx s13 chassis with no modifications. Uses the US 240sx of the host chassis driveshaft and differential. Uses the standard downpipe and catalytic converter with the 240sx catback exhaust.

Black-Top S14 SR20DET Silvia 95-98

Horsepower: 220hp at 6000rpmTorque: 203 ft/lbs at 4800rpmTurbo specs: Compressor: T-28, 60 trim, 60 mm BCI-1 compressor in T-04B housingTurbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.Center section: Ball Bearing

Variable valve timing system and a different turbo are the significant changes from the S13 SR20DET engines. S14 uses 'low port' intake design vs. S13 '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 engine should produce 250-260 WRPM at safe boost.

[captain nismo]

nice cut and paste off the HT website

[Nathan]

Yeah, nobody ever wants to take a little time to friekin search for anything...nice job posting it up...unfortunately it'll eventually fall off of the first page and then all the newbies will be putting up threads wanting to know what the mad phat SR20 specs are.

[I H8 UR DSM]

So the stickey on top of page 1 forever titled "what is the difference between s13 black/redtops" wasnt enough? lol

[Daunttless]

Did you ever really think it would be Jesse? : )

[Silvia240sxNiSmO]

hey as far as newbs go, i've got to be one of the worst, at least i don't try and post about stuff i don't know in an attempt to act like i'm not a newb

[Eklectrick]

I'm just a newbie myself, but I see a possible error on your fifth line which reads:Black-Top S13 SR20DET 180SX 94-98wouldn't this be more correct?:Black-Top S14 SR20DET 180SX 94-98or:Black-Top RPS13 SR20DET 180SX 94-98as I understand that the s13 wasn't made from '94-'98

[slw240sx]

in japan the s13 was made till 98

[SpeedRacer1]

Quote »as I understand that the s13 wasn't made from '94-'98 [/quote] That is getting super technical and then your observation would be wrong too. It is true that S13 Silvia's weren't made after 1993 but the "S13" means a 1989-1990 S13 Silvia (coupe) with a CA18DET. The 1991-1993 SR powered Silvias are called PS13's, whereby the P stands for an SR20DET.

Quote »Black-Top S14 SR20DET 180SX 94-98or:Black-Top RPS13 SR20DET 180SX 94-98[/quote]First off the S14 SR20DET is not the same as the S13 Blacktop SR20DET and the S14 SR came in an S14. The 180SX by broad definition is an S13 so you cannot say that the S14 SR came in a 180SX.When he says S13 SR he is denoting a difference of engines, not the chassis' they come in. When you say your going to buy an S13 SR blacktop to your friends do you say "Im going to get an RPS13 SR20DET for my car," or say "Im going to get an S13 blacktop." ?

[Eklectrick]

I see. I guess I was just regurgitating what I saw someone else writing about on this board that I prolly misinterprated. I just want to be straight on this stuff cuz im new and I'm confused, but I am very interested in it all.