A community of enthusiasts dedicated to Nissan's SR20DE/SR20VE/SR20DET engines.
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you're saying that 95-99 SERs make less HP with a g20 ecu???
Quote:
Originally Posted by GeneralStriker
i think hes saying it makes less hp at 130mph...which is cool because with the stock ecu...you wouldnt even get to see passed 113mph..so im not complaining..
Striker
You are both confused, he is saying that even though the b14 lowports make less power than the b13 highports, they will still reach 130mph like the highports can, as long as they have an OBDII g20 ecu to eliminate the speed limiter. This is probably because of the difference in drag on the body of the different cars.
Black '95 200sx SE-R Turbo Lowport 286whp/245wtq 12.306 @ 113.55
White '92 NX2000 All Stock.
White '92 NX2000 Automatic, stock, not moving, and FOR SALE <---- Click for Pics
Quote:
Originally Posted by BORNGEARHEAD
It's pathetic the amount of people in this country that believe all the bullsh*t being spewed out the mouths of Bush, Cheney, Rove, Rice, Snow, oil companies, lobbyists, etc.
i have a 92 G20 (highport) would putting an intake cam from a lowport into my motor reduce horsepower since putting an intake cam from a highport in a lowport gains an extra 7 hp? may be a stupid question but.... hence the name G20_newbie. lol
Down the back of the engine, just follow the air intake pipe from the filter. On the low port it is high up and easily accessible, on the high port it is lower down...
Those pictures are backwards. Someone please fix this as it has already caused this guy some confusion.
Lowport = throttle body down LOW injectors easy to change.
Highport = throttle body up HIGH, injectors buried underneath throttle body
FIX THIS THREAD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Chris
Last edited by B13Sentra2DR : 12-28-2006 at 07:37 PM.
Those pictures are backwards. Someone please fix this as it has already caused this guy some confusion.
Lowport = throttle body down LOW injectors easy to change.
Highport = throttle body up HIGH, injectors buried underneath throttle body
FIX THIS THREAD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Chris
You have it backwards...
The lowport is the later engine with the injectors covered by the plenum.
Lowport = throttle body down LOW injectors easy to change.
Highport = throttle body up HIGH, injectors buried underneath throttle body
FIX THIS THREAD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Chris, the only thing wrong in this thread is your post...
What do you think this is? Hint... it's not a lowport.
__________________
Monty <--- Another victim of the go-fast crack pipe....
It's confusing sometimes but there are a few ways to remember...
Here is a good way to remember Highport - the INTAKE PORTS are HIGHER than Throttle Body/Primary Plenum Lowport - the intake PORTS are LOWER than the Throttle Body/Primary Plenum
As far as stock cam profiles... This is from a passage I am still putting together started back in August after talking with a few people from a few companies... but never posted, so if you read something that you don't agree with please let me know via pm, and I will remove it.
Quote:
The Conspiracy of the 94 Cam
Originally I had always thought that the only specific grinds for the stock FWD SR20's were.
Well, it appears that I forgot about a certain series in the mix. In the stock 94 Sentra lowport head, housed a 240* duration and 9.2mm lift intake cam... which is essentially a replica of the SR exhaust cam. This was the first and only year they used that cam profile in the Sentra SE-R... but the interesting thing is that they continued to build the Nissan Primera/Infiniti G20 in 95 and 96 with this special 94 intake cam as well. So, according to the cam change in the SR20 Motor (From 240* to 232* in the B14 SE-R), the rev limit went from 7.5 to 7k because of the intake cam, but in the 95/96 g20s the rev limit still remained at 7.5k...
In essence, the reason the rev limit was minimized is because the 232* duration cam doesn't function well at 7.5k. Most know when you switch the 91-93 highport cam in the lowport head there is a gain in power.. but your stability at 7.5k is now attainable as well. Also when you switch the 94 lowport SR20 intake cam, or 94-96 Primera/G20 lowport intake cam into your late lowport engine there will be a gain in power as well. and your 'stability' at 7.5k is then "regained". Even though this 'stability' is attainable, it does not mean it's advisable to rev that high... mainly because the SR20DE stock does not make its best power at this rpm. Remember, just because something is attainable doesn't mean it should be pushed to the limit. constant load at high rpm to redline isn't advisable all the time, unless you like engine wear. Additionally, no matter what camshaft is in your lowport SE-R, your rev limit will obviously be governed by the ECU that you are currently using.
So I know it's been answered a bizillion times but can you tell me whether this is a high or low please. I just got the car a couple weeks ago and am still learning about it so I would appreciate the help.
Here's another one.
It's a DET not a standard DE. I don't know if that matters or not. Again, I appreciate the help.
its a highport, do u see were it says NISSAN on the valve cover??, ok if u look behind nissan at the back of the engine ur gonna see 4 big studs. those r ur injectors. the throttle body is below that. and on a USDM its the opposite. u see a big throttle on top, an the injectors down below.
Cool thanx. I thought it was from reading the rest of the stuff on there but I wanted to be sure. I need to get some parts for it and I didn't know if it would matter high or low. I need to get a head gasket, water pump, timing chain and temp sending unit. Hard enough to find so far cause no nissan shops around me can even look up the DET. All they can get is the DE so I want to be sure that everything else is right.
So *** can somebody explain me something. I have a highport SR20DE engine.
Does this have RollerRpcket or NVCS.
*** help me cause i see those specs on cams specifications and nobody here in Greece know o sh*t about it so i can make my mind a buy some decent cams.
