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Differences? Why is one better than the other?
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Each one is for differant years...i think 91-94 are redtop and 95-98 are Blacktop...im not sure though but it does have to do with the years. Oh i think the blacktop has more horsepower than the red top.Last edited by Kevlar; 02-05-2005, 04:53 PM. -
Hmm... I heard it was just that the blacktop is more rare than the redtop.Originally posted by KevlarComment
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Ok this is the actual specs of the SR20DET below:
Redtop 91-94_____________Blacktop 95-98
Type: Incline 4 cylinder__________4 cylinder
Displacment: 2.0L_____________________2.0L
Vavles: 16______________________16
# of cams: 2________________________2
Bore: 86mm___________________86mm
Stroke: 86mm___________________86mm
Horsepower: 202 @ 6000rpm___________217 @ 6000 rpm
Torque: 203 @ 4000 rpm___________203 @ 4000 rpm
Comp. Ratio: 8:5 : 1___________________8:5 : 1
Boost: 7 psi_____________________7 psiLast edited by Kevlar; 02-05-2005, 05:48 PM.Comment
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Perfect info! Thanks a lot man!Originally posted by Kevlar
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Well i dont know if there is a rarity issue with the motors but it depends what year your car is...Originally posted by GaijinSmashComment
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Tha newer tha engineb tha less miles it has on it usually. Company's tell u 30-50k miles on tha engines.
Redtop is tha basic flat line SR20. Blacktop's are upgraded a lil. S14's have VVT( a new softwear )Comment
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year matters some wat
Tha older tha engine is, tha more likely it has more miles. When JDM engines come to tha US, they ruffly have 30-50 thousand miles on em. So Redtops will most likely have around 40 to 50k, and blacktops will have less. On most of them, not all.
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Also Redtop's are tha basic SR20's. Blacktops are basiclya Redtop that has an upgraded turbo, fuel injectors, VVT, and some other stuff. Thus giving it more power. Also it just has a different color valve cover.
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Tha older tha engine is, tha more likely it has more miles. When JDM engines come to tha US, they ruffly have 30-50 thousand miles on em. So Redtops will most likely have around 40 to 50k, and blacktops will have less. On most of them, not all.Originally posted by Kevlar
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Also Redtop's are tha basic SR20's. Blacktops are basiclya Redtop that has an upgraded turbo, fuel injectors, VVT, and some other stuff. Thus giving it more power. Also it just has a different color valve cover.
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S15 blacktops have 240 horses. Not sure on total specs though.Comment
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SR20DET S15 Blacktop Specs:
S15 Silvia 99+
Horsepower: 250ps at 6000rpm Transmission: 6 Speed, Close Ratio
Injector size: 480cc/min
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Turbo specs:
Compressor: T-28, 60 trim 60 mm BCI-1 compressor in T-04B housing
Turbine: Inco turbine wheel. Cast divider wall between turbine discharge and wastegate.
Center Section: Ball Bearing
Additions: 6 speed manual transmission. The 6 speed cannot be used on the S13 and S14 motors, and uses a different driveshaft. Speed sensor is located in the differential.
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Performance:
The stock turbo will be safe to 15-18 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 close to 300 RWHP at safe boost
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*NOTE* I've heard from many people that have this engine that the 6-speed tranny can fail after 300 HP..
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yes that is correct the s15 sr20 has a very VERY weak tranny. its so soft its not even funny. its a waste of money and i find 5 gears to be better for drifting and just use in generalComment
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There are S13 red tops and 180sx black tops, both with the same HP, nothing much different other than vertical lines on the front of the head, but older model S13 red tops also had the cooling fins on the front of the head. The S14 Black top has a low port head with the intake plenum on top, uses a T28 turbo as opposed to the T25 on the S13 SR's, and has VTC, with 220hpComment
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how come there blacktop sr20det .....and are the blacktop better then the redtop
see click here this is what i am talkin about http://www.drifting.com/forums/showt...iley%27s+240sxLast edited by damgeorge; 03-03-2005, 06:14 AM.Comment
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...VVT isnt softwear, its variable valve timing, which will give you more horsepower above 5500 revs. It also enables greater boost pressure and response. The reason people go with the s13 sr20s is that they're cheaper and they have larger intake/exhaust bores. Redtops are older and cheaper, and the only differences between that and blacktop is that blacktops are usually lower mileage and the cams are raisedOriginally posted by OKR-DrifterComment
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