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Thread: What else should i do?

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Posts: 21-30 of 31
2013-11-28 20:36:09
#21
Originally Posted by Matej
Make sure the crank/valve cover vacuum system is properly plumbed. It actually makes a difference on an SR.
There are a few aftermarket 65-70mm throttle bodies available for the RWD SR20 and RB20, and they are a direct bolt-on.
Look into a crank scraper.


Originally Posted by Storm88000
You don't have to rev to the moon, but the motor is ready for it with the N1s.


Sorry for sidetracking the thread, and this may have been answered before, but if I plan to retain the stock VE ECU with the rev limiter and all (however the VVL would be set to engage at around 4500rpm), would the N1 cams still provide any gains throughout the rpm range as opposed to the stock P11 or possibly the regular SR16VE cams, or do they mostly make power up high?


Hmm may want to bump up VVL engagement to 4800 or so, unless you've found it makes its best power on the dyno (mine makes the most peak power when VVL engages at 5200RPM, I lost some power when I went down or up)

As for the stock VE ECU question, from what I recall, the fuel cut is fairly low. Do you know which vehicle the VE ECU came from? We may able to look it up. I thought I remember it was like somewhere at or below 7500RPM, may have seen that it was at 7100RPM even. It all depends which vehicle your ECU was from if you can find that out.
2013-11-28 20:42:02
#22
I used the SR20VE stock ECU, the rev limiter is at 7300rpm... and even with the stock cams, bumping up the rev limiter will show some gains, so i would recomend you to get at least a NEMU or Nistune Chip to get the rev limiter up or you wont get anywhere near the whp gains that you read of on this forum.

Im engaging the VVL at 4600rpm and found some torque there, but always depend on the tune and the engine itself.
2013-11-28 20:59:10
#23
Yep 7300RPM sounds about right. It sounds weird to say this, but the SR20VE wasn't specifically designed by Nissan to be a "race" motor although we've turned it into one.. it was in a lot more vehicles overseas, but the ever-so rare SR16VE w/ with it's stock N1 cams has a redline of 8300RPM from the factory. Pretty impressive. So that's why the N1 cams are so popular with us.
2013-11-28 21:57:13
#24
My thread should be helpful: http://www.sr20-forum.com/vvl/65925-sr20ve-w-boltons-186whp.html

Cam gears setting depends on header and IM. So you have to test it yourself.
2013-11-28 21:58:44
#25
Originally Posted by Storm88000
Hmm may want to bump up VVL engagement to 4800 or so, unless you've found it makes its best power on the dyno (mine makes the most peak power when VVL engages at 5200RPM, I lost some power when I went down or up)

As for the stock VE ECU question, from what I recall, the fuel cut is fairly low. Do you know which vehicle the VE ECU came from? We may able to look it up. I thought I remember it was like somewhere at or below 7500RPM, may have seen that it was at 7100RPM even. It all depends which vehicle your ECU was from if you can find that out.

Good to know about the VVL engagement, thank you.
The ECU is the stock one that came with my P11 SR20VE, I will have to go look up the part number when I get a chance.
I already own the N1 cams, I am mainly wondering if it would be pointless to install them if I plan to use the stock ECU or if I will still see gains, or if I could possibly benefit more from getting a set of the regular SR16VE cams.
There also seem to be people claiming that the 16VE and N1 cams are nearly identical up until 7000-7500+rpm, while others say the N1 cams outshine the regular ones all throughout the range, so I am curious which is true.
2013-11-28 22:34:43
#26
@jagy @Payu where can i get CS cam gears? would the JWT cam gears work good?

I just saw Jagy's threat and i want cam gears!!
2013-11-28 23:04:17
#27
Custom steel sr20 sr16 de det vvl adjustbale cam gears
2013-11-28 23:58:50
#28
I saw another thread where someone made 16 more HP with the N1s, but you may have a point about where the power is made. For sure since the motor that the N1 cams come in with stock, for Nissan, a company often conservative with redlines and fuel cuts (ex: the B14's 7100RPM fuel cut) for the SR16VE to have an 8300RPM redline, surely those cams must be 80 percent top end.
2013-11-29 14:34:56
#29
Originally Posted by ivanorcan
@jagy @Payu where can i get CS cam gears? would the JWT cam gears work good?

I just saw Jagy's threat and i want cam gears!!


I think Greg is out of stock with CS cam gears... i want them from him a long long time with no luck.

Btw. dont look at peak power, it is just dyno (tool).
2013-11-29 17:02:36
#30
Oh No, i know i should not be looking for just peak hp, my objective is a car that is fun to drive and fast... thats all... having a dyno sheet that says 200whp is just a plus...
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