# SR blacktops **URL:** \ **Category:** Canada Nissan Automotive\ **Created:** [September 25, 2006, 11:15am UTC](https://forums.speedlife.net/t/sr-blacktops/144412 "2006-09-25T11:15:41Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![Dynamo7](https://avatars.discourse-cdn.com/v4/letter/d/5fc32e/32.png) [@Dynamo7](https://forums.speedlife.net/u/Dynamo7)\ **Post date:** [September 25, 2006, 11:15am UTC](https://forums.speedlife.net/t/sr-blacktops/144412/1 "2006-09-25T11:15:41Z")
Just a quick question on the S13 blacktop, what is the main differnece between it and a redtop(not the valve covers for who ever is goin to be an ass :P) I havent found any reliable info. Everywhere ive seen they same power and torque are the same, I know the S14 blactops have a t28bb and vvt. Just curious b4 i make any any real decisions. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [September 25, 2006, 11:27am UTC](https://forums.speedlife.net/t/sr-blacktops/144412/2 "2006-09-25T11:27:25Z")
i think black top is just newer… and has a different ecu? i dont remember ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [September 25, 2006, 11:32am UTC](https://forums.speedlife.net/t/sr-blacktops/144412/3 "2006-09-25T11:32:55Z")
[http://www.240sxforums.com/forums/showthread.php?t=55363](http://www.240sxforums.com/forums/showthread.php?t=55363) ---
**Author:** ![nis\_mo](https://avatars.discourse-cdn.com/v4/letter/n/82dd89/32.png) [@nis\_mo](https://forums.speedlife.net/u/nis_mo)\ **Post date:** [September 25, 2006, 11:33am UTC](https://forums.speedlife.net/t/sr-blacktops/144412/4 "2006-09-25T11:33:40Z")
s13 blacktop is a newer version of the redtop with no differences that i am aware of, s14 motors have vvt and t28… ---
**Author:** ![InitialD](https://avatars.discourse-cdn.com/v4/letter/i/d07c76/32.png) [@InitialD](https://forums.speedlife.net/u/InitialD)\ **Post date:** [September 25, 2006, 11:41am UTC](https://forums.speedlife.net/t/sr-blacktops/144412/5 "2006-09-25T11:41:50Z")
black tops have more power too and stronger internals. ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [September 25, 2006, 12:10pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/6 "2006-09-25T12:10:56Z")
Red-tops and the Flat VC black tops have a high port head. It flows better than the S14 or S14 motors. Basicly once fully built the High port head has the power advantage. However the low port head in the S14 motors is good for mid range, which is nicer on a closer to stock set up. Try to find a good Red-top or a flat Black top. ---
**Author:** ![imported\_silvia](https://avatars.discourse-cdn.com/v4/letter/i/e79b87/32.png) [@imported\_silvia](https://forums.speedlife.net/u/imported_silvia)\ **Post date:** [September 25, 2006, 2:40pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/7 "2006-09-25T14:40:33Z")
the early model black tops are newer then the red tops, and often have a little less millage. I believe the ECU is the same, but not sure. the redtop has a little extra emision control gadgets i believe. and i think the blacktop had something connected to the wastegate vacuum line to hold the flap closed a little longer to increase spoolup, once again, not 100% sure. ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [September 25, 2006, 5:35pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/8 "2006-09-25T17:35:12Z")
> [@silvia](#): > > the early model black tops are newer then the red tops, and often have a little less millage Could be true but there is not exact way of verifying milage. > [@silvia](#): > > I believe the ECU is the same, but not sure. Wrong, Ecu is different but will work as long as you change the ground on the O2 sensor > [@silvia](#): > > the redtop has a little extra emision control gadgets i believe. Other way around, newer has more gadgets. > [@silvia](#): > > and i think the blacktop had something connected to the wastegate vacuum line to hold the flap closed a little longer to increase spoolup, once again, not 100% sure. Nope. They are the same, Except the S14’s came with a T28 ---
**Author:** ![imported\_silvia](https://avatars.discourse-cdn.com/v4/letter/i/e79b87/32.png) [@imported\_silvia](https://forums.speedlife.net/u/imported_silvia)\ **Post date:** [September 25, 2006, 6:44pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/9 "2006-09-25T18:44:15Z")
Well…thank you mister know it all ---
**Author:** ![Dynamo7](https://avatars.discourse-cdn.com/v4/letter/d/5fc32e/32.png) [@Dynamo7](https://forums.speedlife.net/u/Dynamo7)\ **Post date:** [September 25, 2006, 6:55pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/10 "2006-09-25T18:55:55Z")
> Red-tops and the Flat VC black tops have a high port head. It flows better than the S14 or S14 motors. > > Basicly once fully built the High port head has the power advantage. > > However the low port head in the S14 motors is good for mid range, which is nicer on a closer to stock set up. > > Try to find a good Red-top or a flat Black top. So you personally dont think the S14 motor is worth the extra cash for the 17hp, t28, and VVT? Is it any differnt to install into a 180 than say a S13 redtop. My power goals are around 250-280whp and id like to be able to make that the esiest and most reliable way I can. I just dont see me being able to do it with my CA reliably and it would take probally around the same amount of $$ that id spend on a motor as it would to build up my CA, to be that same HP but most of all Torque as a SR. And im tired of searching day and night for parts. One last question, the SR20DE came in the 96 sentra se-r right, or was tha just in the US? ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [September 25, 2006, 7:50pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/11 "2006-09-25T19:50:32Z")
> [@Dynamo7](#): > > > Red-tops and the Flat VC black tops have a high port head. It flows better than the S14 or S14 motors. > > > > Basicly once fully built the High port head has the power advantage. > > > > However the low port head in the S14 motors is good for mid range, which is nicer on a closer to stock set up. > > > > Try to find a good Red-top or a flat Black top. > > So you personally dont think the S14 motor is worth the extra cash for the 17hp, t28, and VVT? Is it any differnt to install into a 180 than say a S13 redtop. My power goals are around 250-280whp and id like to be able to make that the esiest and most reliable way I can. I just dont see me being able to do it with my CA reliably and it would take probally around the same amount of $$ that i > > > d spend on a motor as it would to build up my CA, to be that same HP but most of all Torque as a SR. And im tired of searching day and night for parts. > > One last question, the SR20DE came in the 96 sentra se-r right, or was tha just in the US? > > On your goal a red-top at 14PSI will get you there. However an S14 motor with a T28 will get you there a little safer, however fueling with the stock 370CC injectors will limit you first, then right after the MAF will. The wiring is a little different, especialy if you want VVT. > > Yes the SR20DE can in the sentra (called 200SX SE-R in canada) > > For redtop parts use a 91 Sentra SE-R, for black tops use the 96. > > > Well…thank you mister know it all > > Just trying to spread correct info, Did not want to shoot ya down. :drinkers: ---
**Author:** ![imported\_silvia](https://avatars.discourse-cdn.com/v4/letter/i/e79b87/32.png) [@imported\_silvia](https://forums.speedlife.net/u/imported_silvia)\ **Post date:** [September 25, 2006, 8:56pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/12 "2006-09-25T20:56:20Z")
it’s all good! Like I said in my post, I wasn’t sure, just rumors I had heard over the past few years. However if there are no differences except the O2 sensor, then why are the blacktops always more expensive and more desirable? ---
**Author:** ![Dynamo7](https://avatars.discourse-cdn.com/v4/letter/d/5fc32e/32.png) [@Dynamo7](https://forums.speedlife.net/u/Dynamo7)\ **Post date:** [September 25, 2006, 9:03pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/13 "2006-09-25T21:03:19Z")
I’m guessing rareity, and lower km’s. And some guy said they were better once lol ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [September 25, 2006, 9:11pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/14 "2006-09-25T21:11:43Z")
> [@silvia](#): > > it’s all good! Like I said in my post, I wasn’t sure, just rumors I had heard over the past few years. However if there are no differences except the O2 sensor, then why are the blacktops always more expensive and more desirable? Depends on what black top you are talking about There is a Flat VC, Early edition (found in 94-96 180SX) Then the late edition (97+ 180SX) The the notch covers S14- Basicly self-explanitory S15- same as above The later flat ones had S14 external accesories. Black tops are rare-er and generaly have less KM’s on them. Generaly is a big generalization. Casting numbers on the pistons are the only way to tell how stong the bottom end it. 54C’s are desirable but enjuku has found them in everthing. From Red-tops to S14’s ---
**Author:** ![CA18DET-180SX](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)\ **Post date:** [September 25, 2006, 10:31pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/15 "2006-09-25T22:31:07Z")
> [@Dynamo7](#): > > Just a quick question on the S13 blacktop, what is the main differnece between it and a redtop(not the valve covers for who ever is goin to be an ass :P) I havent found any reliable info. Everywhere ive seen they same power and torque are the same, I know the S14 blactops have a t28bb and vvt. Just curious b4 i make any any real decisions. What the hell man? Everytime I think about doing something to my car your doing the exact same thing to yours lol. ---
**Author:** ![Dynamo7](https://avatars.discourse-cdn.com/v4/letter/d/5fc32e/32.png) [@Dynamo7](https://forums.speedlife.net/u/Dynamo7)\ **Post date:** [September 25, 2006, 10:36pm UTC](https://forums.speedlife.net/t/sr-blacktops/144412/16 "2006-09-25T22:36:13Z")
Great minds think alike