s13 Black Top Vs. Red Top

[Mofec701]

Here's a thing thats been perplexing me this whole time ever since i got in2 this car. I was looking at an engine swap for a 240sx and i came across the s13. The thing i noticed was the black top s13 engine was more expensive than the red top, but yet judging by the specs that were given by the company the two engines were identical. The same was for other engine distributors. Can any1 answer why the black top cost more than the red top?

[xcusememisswyn]

they blacktops are newer than the redtops, which means less miles. also, most the redtops had weaker internals than the blacktops. The SR ppl could tell you more but thats basically it i think

[R.W.240]

Late model redtops are the exact same as blacktops.

the blacktops have stronger internals (54C internals were what the 600whp stock bottom end dyno were on)

[TRUBO_89]

red top = 1991-93.5 silvia and 180sx
black top = 94 and up 180 sx
black top is newer, better port design than teh redtop and better internals.

[Hit_N_Run-player]

[NissanElitist]

The S13 blacktop has...

- Upgraded pistons (54C)
- Refined oil pick-up (S14 style)
- Updated oil squirters
- E5 / J4 ECU's have different programs than 62s
- Visable fins on the front timing cover (last year Redtops have this also)
- Variations in ignition wiring on J4 models
- 02 sensor is larger, and a newer Bosch style
- J4 models have S14 alternators & gearboxes

Oil pump is the same for all model year RWD DET's as is the water pump, fitment may vary as Nissan sells the oil pump with a cover.

All S13 motors have T25's w/ 0.80 A/R compressor side, 0.64 A/R exhaust side, and high port heads (superior to the S14/15's low port head)

All S13 motors do not have NVCS.

GTiR cranks and rods are different (19mm big end rod bearing diameter and larger mains).

[Mofec701]

Gracias, thats all i was wonderin'. Im still things about the car ... I want a Silvia soooooooooooo badly. But im so poor, and the people in my city is jacking because they get good gas mileage i heard ... ... ... damn losers charging a good car at high price...

[Dyno247365]

You want silvia power? Get the s15 engine, 250hp turboed stock from factory. Anyone here have that engine in their 240sx?

[NissanElitist]

Originally Posted by Quicksilver_28

You want silvia power? Get the s15 engine, 250hp turboed stock from factory. Anyone here have that engine in their 240sx?

Or you could not listen to the magazine racer, and get the superior S13 engine.

[R.W.240]

Originally Posted by NissanElitist

Or you could not listen to the magazine racer, and get the superior S13 engine.

Red = For Racing.

Black = For Emo.

Green = About to stomp you motherfucking face in.

[240SXSlideStar]

Originally Posted by NissanElitist

Or you could not listen to the magazine racer, and get the superior S13 engine.

The S13 SR is better then the S15 SR?

[TRUBO_89]

its gonna be a pain for the s15
need custom drive shaft
s13 bolts right in

[240SXSlideStar]

You also need the diff cause of the speed sensor.

[NissanElitist]

Originally Posted by 240SXSlideStar

The S13 SR is better then the S15 SR?

Mechanically yes.

[NissanElitist]

Originally Posted by R.W.240

Red = For Racing.

Black = For Emo.

Green = About to stomp you motherfucking face in.

Black = Death Panzer Valvecover of Doom

Green = Green with amount of money spent before motor rod knocks again

Red = Bleeding from having to take out the motor, again.