Diffrences in SR black and red top - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Annoying Eric · 06-29-2002, 09:22 PM

Im trying to research these engines, i have a 1990 240sx fastback. Say i wanted to do a swap which SR would i use the red or black top and what are the diffrences...

Thanks for any info.

EDIT: Which one has more HP?

Titan · 06-29-2002, 09:49 PM

The blacktop SR20 is newer version of the motor.

Redtop --> 91-93 Silvia
Blacktop --> 94-98 Silvia

In terms of more power, the blacktop produces 15 more hp, yet the torque remains the same.

Redtop --> 205 hp, 203 torque.
Blacktop --> 220 hp, 203 torque.

But, as you most likely have already guessed, the Blacktop is more expensive. So it really depends on how much money you wish to spend.

S14lover · 06-29-2002, 10:28 PM

VTC variable valve timing = black top ...this meanns its like VTEC!(i was drunk when i typed this)

okisil80 · 06-29-2002, 10:53 PM

There's also an S13 blacktop in later (94+?) 180SXs. No VVT on those, but different MAF, computer, etc.

rotaryknight · 06-30-2002, 12:51 AM

Exactly...what black top are you talking about. There is a S13 red top and black top. The two motors are pretty much the same. The black top are in the 94+ 180sx.

The S14 SR20DET is also a blacktop but not the exact same as the S13 though it does has higher hp.  But what does it matter, that's what mods are for.  My concerns was having A/C and power steering.  If you have a S13 body then you should consider a motor out of the 180sx.  It makes things a lot easier.

*DSC* · 06-30-2002, 02:45 AM

http://www.unstable-hybrids.com/sr20detFAQ.html

http://www.unstable-hybrids.com/nissanengines.html

Edit: if the site is being dumb like it is for me, the above links will not work 1st try...try closing the window and clicking the link again...refresh will not fix it.  that site is very odd <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'>

06-29-2002, 09:49 PM	#2
Titan Zilvia Junkie Join Date: Apr 2002 Location: Ontario, Canada Posts: 421 Trader Rating: (0) Feedback Score: 0 reviews	The blacktop SR20 is newer version of the motor. Redtop --> 91-93 Silvia Blacktop --> 94-98 Silvia In terms of more power, the blacktop produces 15 more hp, yet the torque remains the same. Redtop --> 205 hp, 203 torque. Blacktop --> 220 hp, 203 torque. But, as you most likely have already guessed, the Blacktop is more expensive. So it really depends on how much money you wish to spend. __________________ Sleep Doesn't Drink Beer

06-29-2002, 10:28 PM	#3
S14lover Zilvia Member Join Date: May 2002 Location: Colombus GA Posts: 162 Trader Rating: (0) Feedback Score: 0 reviews	VTC variable valve timing = black top ...this meanns its like VTEC!(i was drunk when i typed this) __________________ She ****ing hates me ....TRUST!

06-29-2002, 10:53 PM	#4
okisil80 Join Date: Jun 2002 Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	There's also an S13 blacktop in later (94+?) 180SXs. No VVT on those, but different MAF, computer, etc. __________________ <BR> <img src=http://velocity.isfaster.com/okinawa/okisil80/carsig.jpg> <BR>

06-30-2002, 12:51 AM	#5
rotaryknight Zilvia Junkie Join Date: Apr 2002 Posts: 408 Trader Rating: (0) Feedback Score: 0 reviews	Exactly...what black top are you talking about. There is a S13 red top and black top. The two motors are pretty much the same. The black top are in the 94+ 180sx. The S14 SR20DET is also a blacktop but not the exact same as the S13 though it does has higher hp.  But what does it matter, that's what mods are for.  My concerns was having A/C and power steering.  If you have a S13 body then you should consider a motor out of the 180sx.  It makes things a lot easier. __________________ Daily Driver- 91 240 SX SE...S13 Blacktop HKS FMIC, EVC IV, W/G, Racing Suction, DP, Dual Drager, springs/pillow ball mounts Whiteline sway bars Tokico blues Koyo Radiator, Fluidyne fan J30 VLSD stock exterior. Fun Car- 94 FD3S (TO4S). The White HKS FD in FnF......may she rest in pieces.

06-30-2002, 02:45 AM	#6
DSC New Title Join Date: Aug 2001 Location: VA Posts: 3,454 Trader Rating: (0) Feedback Score: 0 reviews	http://www.unstable-hybrids.com/sr20detFAQ.html http://www.unstable-hybrids.com/nissanengines.html Edit: if the site is being dumb like it is for me, the above links will not work 1st try...try closing the window and clicking the link again...refresh will not fix it.  that site is very odd <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'> __________________

06-29-2002, 09:22 PM	#1
Annoying Eric Zilvia Addict Join Date: Mar 2002 Location: NYC / Indiana Age: 39 Posts: 831 Trader Rating: (1) Rides Gallery: Annoying Eric Feedback Score: 1 reviews	Im trying to research these engines, i have a 1990 240sx fastback. Say i wanted to do a swap which SR would i use the red or black top and what are the diffrences... Thanks for any info. EDIT: Which one has more HP?

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