S13 Red Top Vs. S13 Black Top - The differences

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newfengshui
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how much does a redtop cost in japan? i know in my area it's around 2500 for one. but how much do you think it would cost to get one in japan?


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SpeedRacer1
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Well the full car in Japan with the redtop ranges from about 1500-3500 so i'd say just the engine would be about 600-1000.

ct9a gsr
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Can the same AEM EMS be used for both redtop and blacktop s13 sr20det motors? I believe... 30-1601?

Or... will the 30-1601 ONLY work on the redtop s13 sr20det and the 30-1602 will ONLY work on the blacktop s13 sr20det? Thanks.

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newfengshui
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SpeedRacer1 wrote:Well the full car in Japan with the redtop ranges from about 1500-3500 so i'd say just the engine would be about 600-1000.
solid, thanks for the info. i'll pass that along to my employer.

hookups ftw.

cody180sx
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the s13 black tops have better oil squirters like the s14 blacktops

kooboi
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would a s14 sr20 parts work in a s13 sr20?

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SpeedRacer1
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kooboi wrote:would a s14 sr20 parts work in a s13 sr20?
It depends on the parts you want to use.

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Hijacker
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'94 F-150
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cody180sx wrote:the s13 black tops have better oil squirters like the s14 blacktops
Comparing the new squirter to the old squirter, I can't tell a difference to be honest. They're aimed identical and seem to have the same style of restriction.

I do know Nissan changed them for the blacktops since the part numbers are different

sevret.t
Posts: 35
Joined: Thu Feb 01, 2007 8:12 pm
Car: 04 G35 6MT, 89 SE Coupe

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Ok, so the only perks to having a bt is basically newer and lower miles? not sure if its true but i heard that in japan they change motors every 30-40k miles? sounds kinda false? anyone clarify? also, would i need a new driveshaft to fit an s13 bt into my 89 coupe?

nzmoman
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sevret.t wrote:Ok, so the only perks to having a bt is basically newer and lower miles? not sure if its true but i heard that in japan they change motors every 30-40k miles? sounds kinda false? anyone clarify? also, would i need a new driveshaft to fit an s13 bt into my 89 coupe?
I think that to control emissions and to aid in the economy they have a different tax system on cars that have a certain mileage or are certain age. The cost is supposed to be so high that its cheaper for them to get a newer car. Then the older cars get cast away or traded in. They are sold to people all over the world and people in Japan who are wanting to upgrade can pay very little for a motor and people export because the cars are cheap but the parts are sought after.. or something like that

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brizanden
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JustinStrife wrote:It's a lie about the S15 tranny being weak. It isn't. A rumor spread by superstreet or one of those magazines.
idk if this got addressed and i realize the post im quoting is ancient, but i would just like to say the 6 speed isnt the greatest and nismo made a 6 spd tranny that is built a little stronger, but also has some tweaked ratios in 1,3,4

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IrenicShogun
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Car: 95 240SX Hatchback

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dustyk wrote:
it's not a Lie, the S15 6 speed is weaker than the SR 5 speed. Ive had friends in japan that broke the 6 speed and switch to the older 5 speeds.
It's not "weaker" it's just pointless. Simply because the body, and all of it's compartments are the same as the 5 gear. They just simply added another gear, without doing anything else, such as more HP, or maybe a bigger displacement. So it's just lag on lag.

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revel
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i am looking to replace my PowerFC due to the Commander not working anymore, and no longer being able to tune the ECU even by computer. believe the port where the Commander plugs in has gone bad. everytime i try to plug in the commander the ecu loses its tune and reverts to crap.

so my question is: how exactly do i know which year motor i have? or will any year blacktop/redtop PowerFC run the motor properly?

MC Mate
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Car: Nissan s13 sr20det

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Question : is this a sr black top pick up ? or do i have to make it bigger ?


draggingballz
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Car: 2001 nissan maxima 5 speed SE, 1995 240sx sr20det

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Image

so then i should be stoked. never knew there was a difference. glad to know i have a newer one.

draggingballz
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Joined: Tue May 25, 2010 11:11 pm
Car: 2001 nissan maxima 5 speed SE, 1995 240sx sr20det

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so i have different pistons and squirter angles? is that correct?

Specvboy
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What sr 20 is the most powerful and dependable?

srpower180SX
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Joined: Thu Aug 25, 2011 6:32 pm

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Are all the Sr20 s13 ecu interchangable like if I got a apexi power fc for a kouki 96-99 black top
Sr from a 180sx(not sure about years) but would it work on the earlier 94-96 blacktops?

Cgeigert
Posts: 225
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Car: 1989 Nissan 240sx

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no

awparaghamian
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I was under the impression that because of the piston difference between the two engines, the blacktop had a higher compression ratio and made approx. 15hp more than the red top does. Is this not true? Also, do the S14 and S15 engines make more power than the S13 engines do, and if so, what is the performance increase? I guess obviously they have a larger turbo in the T28, but other than a higher volume of air (CFM), if the pressure is the same then I can't imagine that the volume difference is enough to make a difference in power. I'd need to see a compressor map of the two turbos to really have an accurate idea of performance gains based on volume differences. I doubt the difference between the two in terms of flow volume is that different. It's not like it's the difference between a T3 and a T4.

awparaghamian
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Joined: Wed May 06, 2015 1:07 am
Car: Nissan S13, Audi A5, Lexus IS300, Toyota Supra Mk3, Acura RSX

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Also, the transversely mounted SR20-DET engines that came in the 1991 Nissan Pulsar had a T28 turbo on it, not the T25 of the S13.

awparaghamian
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Joined: Wed May 06, 2015 1:07 am
Car: Nissan S13, Audi A5, Lexus IS300, Toyota Supra Mk3, Acura RSX

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Is it also possible to put the quad throttle body intake manifold that's on the Pulsar SR20-DET onto the S13 engines? Or do they make an aftermarket quad throttle body intake manifold for the SR20-DET. I'm sure the flow characteristics of that manifold is much improved over the standard intake. Especially if going to a larger turbo than a T28, like a T3/T4, as well as improving lag. Does anybody have power specs for the Pulsar SR20-DET? The ones listed from Nissan aren't probably accurate as they're for advertising purposes.


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