How high can the sr16ve (blue)rew?

The stock sr16 ecu allows to rew 8200

How far can I shift the limit? I suppose to use it only for the slips.
My main goal is to shift at 8600 at blue sr16 cams and stock springs. Can I do it safely?

Is there much point going past the peak power?

Is there much point going past the peak power?

i am thinking along these lines..... if i am not mistaken peak is 7800, 8200 is as far as i think is needed...

yes. you're right, but the calculations I've made showed that it is useful to switch at 8500, e.g. over the peak power point, because you will get into the higher torque zone sooner. There is no need to rew 9000, because it is large power loss.

You will find that shifting at 8200 will actually make the car faster, as more torque is produced in an area under the curve acceleration graph as the car pulls upwards towards the peak torque output. By reving to 8600, your actually making less power and torque, so the car looses performance as you reach a dip in the torque/area under the curve graph.

calculations made with draf racing analyser by performancetrands.
Only aim is to prevent the high rpm drop on 2-3 shift (it drops 5500)...

Do u have something to control the cam swtichs? You could set them to come on at 4800-5000 and have them turn off at a lower RPM. I have my MSS like this, Intake kicks at 4600, exhaust kicks at 4700. It dosen't turn off untill the RPMS go under 4300. My rev limit is 7500 so this help me avoid the dead spot and the wait for the cams to come back up if I shift too slow or something.

of course I have one. Now I'm trying to make an e-manage ultimate switch cams.
But the exact question is to find out if my stock sr16ve valvetrain will suport 8600 rpm.

Maybe with bigger cams. I wouldn't push my luck going past the factory revlimit with the factory cams.

Trust me when I speculate that these engines are tuned back to 7800rpm peaks. We ran a couple of them here (and I will soon be running a similar setup) to run 8750 redlines with no issues. You can happily rev them to 8500 and the power is still there pulling solidly until about 8300. The drivetrains seem to be able to handle it and the bottom end must be much better balanced than the 20VE as when I ran mine that high it felt as smooth as a well balanced 8cw 20VE.

I suppose that sr16ve bottom is "lighter" and can handle extra 300rpm?

SR16VE has shorter stroke so the pistons do not need to travel as far for each engine revolution.

Okay here's some things I've found after reviewing my track performance yesterday. My highest trap speed was when I shifted into 4th at 8000rpm-ish rather than letting it rev right out. In hindsight I would have pulled some better track times if I had continued to do that. My redline was set to 8550, intake cam at 5250 (which is near perfect) and exhaust at 6250 (again, nearly perfect). Not much else was changed.
The higher redline is good for first gear because that revs out bloody quickly and you don't notice the power dropping off, in other gears you wouldn't want to rev much past 8000rpm.
I managed a 15.56 @ 145kph with a 2.4 second 60' (slippery track). The run where I changed to 4th was a 15.61 @ 147 but I had a bad launch so could have improved.
That may or may not help you with your tuning but it's info nonetheless.

hmm... nice time. you've got a vz-r? I've got the same time.
Yesterday I've set intake 5000 and exhaust on 5900. will test in the weekend.
The main goal is to help not falling of the high torque area.

Do u have something to control the cam swtichs? You could set them to come on at 4800-5000 and have them turn off at a lower RPM. I have my MSS like this, Intake kicks at 4600, exhaust kicks at 4700. It dosen't turn off untill the RPMS go under 4300. My rev limit is 7500 so this help me avoid the dead spot and the wait for the cams to come back up if I shift too slow or something.

on the sr16, i think that engaging point is a little low, i have no real concrete numbers or info to support this, but when set this low the re seems to be a laging effect... BUT ... in my situation the soloniods are fireing simlutaniously... which could contribute to this..