CAMS
Moderators: P3g4sus, Daniel, rat, Draco, Riekert
Howdy,
Some useful info, the FWD N/A SR20 Cams are the same specs as the turbo'd one, the exhuast cam just needs a longer dowel pin put in for the RWD, any engineering shop should be able to do this for cheap.
The lifters are "relatively" cheap, they are about R80 at spares shops, the SR20 uses 8 of them (2 valves get pusehed open with 1 rocker and lifter)
Some useful info, the FWD N/A SR20 Cams are the same specs as the turbo'd one, the exhuast cam just needs a longer dowel pin put in for the RWD, any engineering shop should be able to do this for cheap.
The lifters are "relatively" cheap, they are about R80 at spares shops, the SR20 uses 8 of them (2 valves get pusehed open with 1 rocker and lifter)
Captain Slow to the rescue!
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CAMS
FOUND OUT TODAY THAT THA DURATION AND LIFT IS DIFERENT,INLET IS 248DEG AND EXH 246DEG LIFT 10.2 ON INLET AND 9.2 ON EXH. SOME SAY GIVES BETTER MIDRANGE.NOT TO SURE THEYL WORK ON SR20 WITH VVT.
Those cam specs don't look right. These are the correct cam specs. (LOW PORT = Primera motors) You can identify these by the shape/location of the ports on the head. Low ports have flat ports against the head. High ports have an slightly upward angled port.
Our Sentras/Sabre's are high ports. So 248/240 10/9.2 lift
You don't want our primera cams, but if you can get their roller rockers then you're in business.
IN
232 8.66 Stock low-port (95-up)
248 10.0 Stock high-port (91-93)
EX
240 9.2 Stock high-port (91-93)
IN
248 10.0 Stock GTi-r
EX
248 10.0 Stock GTi-r
IN
232 10.0 Stock roller rocker
EX
240 9.2 Stock roller rocker
Whichever cams you get, just have them regrinded to 264/264 profiles. Shim up the lifters by about 1mm and say hello to your new car!!
Our Sentras/Sabre's are high ports. So 248/240 10/9.2 lift
You don't want our primera cams, but if you can get their roller rockers then you're in business.
IN
232 8.66 Stock low-port (95-up)
248 10.0 Stock high-port (91-93)
EX
240 9.2 Stock high-port (91-93)
IN
248 10.0 Stock GTi-r
EX
248 10.0 Stock GTi-r
IN
232 10.0 Stock roller rocker
EX
240 9.2 Stock roller rocker
Whichever cams you get, just have them regrinded to 264/264 profiles. Shim up the lifters by about 1mm and say hello to your new car!!
dammitDoctor G wrote: which you don't find easily in SA.
i guess i'll just have to buy tomei cams, and solid lifters, and valve springs, and titanium retainers... and get a head job, and then it will all be alright!
shweet - i'll start saving!
ReeceZ wrote:I'm sorry... I couldn't help it. Please no one wish any hateful shit on me, I own an SX already
Not neccessary.veecee wrote:dammitDoctor G wrote: which you don't find easily in SA.
i guess i'll just have to buy tomei cams, and solid lifters, and valve springs, and titanium retainers... and get a head job, and then it will all be alright!
shweet - i'll start saving!
Seriously. SR's dont' need much work to make good power.
Unless you are planning to rev past 8.5k rpm DAILY, I wouldn't waste money on valve springs, solid lifters, titanium retainers etc. I suggest you rather spend the money on a decent turbo.
Remember the SR's limit at 7250rpm stock.
Regrind the cams in there, or get NA FWD cams and regrind them to 264. Shim it and tune it.
If you still want more power, I'd get higher lift billet cams and then flow it. Don't bother with rocker stoppers either. I'd rather brake a rocker arm than bend valves and possibly conrods etc.
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