03-25-2012, 11:53 PM
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#34 (permalink)
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A True Z Fanatic
Join Date: Aug 2011
Location: palmdale, ca
Posts: 1,299
Drives: 2010 nissan 370z
Rep Power: 17
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Quote:
Originally Posted by Spikuh
Incorrect. Simply get in the car, turn on SRM, start driving and rev to 4k, shift from 1 to 2 and don't release the clutch. You will notice the RPM's do NOT drop back to idle. They hold considerably higher somewhere near 3k.
That is rev matching.
Now do the same thing except with SRM off. Notice how the RPM's drop back to idle.
That is NOT rev matching.
Also called rev matching....
Rev matching has nothing to do with downshifting or upshifting, but is simply about matching the engine rotation with the rest of the drivetrain. It just does not happen as much on the upshift because if done properly, you can basically "catch" the engine as it slows down. Done properly will allow for a smooth shift, done less than properly will provide a rougher shift.
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Quote:
Originally Posted by hadokenuh
So can you someone answer the question I've been trying to get an answer:
With SRM on, when I upshift not from stop but from 1-2, 2-3, 3-4 etc., is it ok to let the clutch out immediately after shifting? Does that damage anything?
I've been doing that and have not seen/heard anything weird. And yes, I read the manual which says the SRM helps upshifts as well.
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no it does not, he doesn't know how srm really works. You are fine, srm will hold the revs when upshifting but you have to wait a couple of sec to shift into another gear. It is somewhat normal to get blips on a quicker upshift because the ecu doesn't now know what it is that you are planning to do when you are on and off the throttle. IN conclusion change your timing with your foot work on clutch and throttle and you should notice the changes in shifting.
Last edited by roy'sz; 03-26-2012 at 12:09 AM.
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