No synchro Rev Match on A7?

leepeen · 05-25-2009, 01:59 AM

I bought A7 white pearl 370z with every package loaded(sports,Navigation) and i wasn't really feel suspicious about the fake button(there is no S mode printing on the button and i can't press it because, it's fake.) on the rightside of the gear.

However, one of my friend told me that even if my Z is A7, sports package loaded Z " must " have the " S " button, which is not a fake.
I've agreed to my friend because, when i change the gear to paddle shifting mode, and if i down shift, my Z seems not matching the RPM, and the engine is screaming like there is no tomorrow. Plz help me!!!

leepeen · 05-25-2009, 02:04 AM

My z got 19" inch forged wheel with bridgestone Potenza tires, which mean's that my Z has sports package, no doubt on it.

frost · 05-25-2009, 02:06 AM

Whoa, uhm. If I'm deciphering this correctly, there is rev match when you use the paddle shifters, but not in full automatic mode. But you have to downshift while slowing/stopping obviously for the rev match to work.

AK370Z · 05-25-2009, 02:35 AM

ONLY 6 speed 370Zs equipped with sports package gets the S mode button. On automatics, you have to move your shift lever to M mode (next to drive) and then you can use the paddle shifters. It WILL rev match for you just like 6MT. Take my word for it.

leepeen · 05-25-2009, 02:47 AM

Thank you Frost, Ak370z. :-)

shumby · 05-25-2009, 04:22 AM

AK is 100% correct. that is exactly how it works on my 7AT G37

mspeasl · 05-25-2009, 09:05 AM

Quote:

Originally Posted by shumby

AK is 100% correct. that is exactly how it works on my 7AT G37

I will have to see it to believe it..................... The AT that I test drove before I purchased my 6sp did nothing more than increase RPM when I downshifted using the paddles. It was no different than a normal AT in any other car when you pulled the lever into a lower gear????????

shumby · 05-25-2009, 09:12 AM

how were you driving. under normal conditions you hardly notice it. BUt during spirited driving and fast decell is when you see it feel it and hear it. So no0w you need to find a friend with a 7AT and find out foryourself instead of just saying no.

FlashBazbo · 05-25-2009, 09:14 AM

Yep. It rev matches. The revs (and tach needle) come up just before the lower gear hits. And the lower gear doesn't hit with the same idiot jolt that a non-matching setup provides.

No doubt it saves a lot of strain on the transmission but, functionally, it's not a lot different than an automatic without rev matching.

Chan Chee Hoe · 05-25-2009, 11:05 AM

I tried to downshift for engine braking down a deep slope,it cause the engine to revs higher thus reduced the engine braking....for the first 2 secs the car would go faster instead of slowing down,really give me a shock.

2bits · 05-25-2009, 02:52 PM

Quote:

Originally Posted by mspeasl

I will have to see it to believe it..................... The AT that I test drove before I purchased my 6sp did nothing more than increase RPM when I downshifted using the paddles. It was no different than a normal AT in any other car when you pulled the lever into a lower gear????????

If you weren't aggressive during that test drive (i.e. staying at low RPMs), it wouldn't be that obvious. If you used Drive instead of Manual, you couldn't notice it because it's turned off. BTW, check out Nissan's site:

2009 Nissan 370Z Coupe Specs - Nissan USA

It's called "Downshift Rev Matching" instead of SRM, but the effect is the same. All 7AT's have it, whereas only Sport 6MT's have SRM.

mspeasl · 05-25-2009, 11:24 PM

Quote:

Originally Posted by 2bits

If you weren't aggressive during that test drive (i.e. staying at low RPMs), it wouldn't be that obvious. If you used Drive instead of Manual, you couldn't notice it because it's turned off. BTW, check out Nissan's site:

2009 Nissan 370Z Coupe Specs - Nissan USA

It's called "Downshift Rev Matching" instead of SRM, but the effect is the same. All 7AT's have it, whereas only Sport 6MT's have SRM.

The below is from another question on the forum and it says about the same as I did when I made the comment about how it feels about the same as other A/T's when downshifted.

Quote:

Originally Posted by ChrisSlicks

(Noob question) SRM stands for?

SRM is short for Syncro Rev Match.
In principle SRM and DRM from the auto trans work the same. The big difference is that it is much easier to do in an auto transmission because the computer is in control of the transmission, it knows what gear it is heading to and what the target RPM is. With a manual transmission it doesn't know what gear it is going to until you select it. The SRM system is a first, DRM on the other hand is pretty standard in modern transmissions.

Lug · 05-26-2009, 10:53 AM

DRM is SRM. SRM is new, DRM has been used for years. It feels the same as other AT's because it is the same. The manual is just catching up to what AT's have done for years.

2bits · 05-28-2009, 03:00 AM

Quote:

Originally Posted by mspeasl

The below is from another question on the forum and it says about the same as I did when I made the comment about how it feels about the same as other A/T's when downshifted.

So which is it? Do you believe the 7AT lacks DRM which we have already established works exactly like SRM ("I will have to see it to believe it..................... "), or do you now think ALL modern autos have DRM? We're telling you how the 7AT works as owners of said tranny, and you missed the rev matching during your test drive.

jakoye · 05-28-2009, 08:31 AM

Quote:

Originally Posted by AK370Z

ONLY 6 speed 370Zs equipped with sports package gets the S mode button. On automatics, you have to move your shift lever to M mode (next to drive) and then you can use the paddle shifters. It WILL rev match for you just like 6MT. Take my word for it.

Regarding your picture of the AT shifter, can you shift gears through the stick itself or are you restricted to using the steering wheel paddles when in Manual mode?

05-25-2009, 01:59 AM	#1 (permalink)
leepeen Base Member Join Date: May 2009 Location: Vancouver Posts: 110 Drives: PW 370z Touring A7 Rep Power: 16	No synchro Rev Match on A7? I bought A7 white pearl 370z with every package loaded(sports,Navigation) and i wasn't really feel suspicious about the fake button(there is no S mode printing on the button and i can't press it because, it's fake.) on the rightside of the gear. However, one of my friend told me that even if my Z is A7, sports package loaded Z " must " have the " S " button, which is not a fake. I've agreed to my friend because, when i change the gear to paddle shifting mode, and if i down shift, my Z seems not matching the RPM, and the engine is screaming like there is no tomorrow. Plz help me!!! Last edited by leepeen; 05-25-2009 at 02:01 AM.

05-25-2009, 02:35 AM	#4 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	ONLY 6 speed 370Zs equipped with sports package gets the S mode button. On automatics, you have to move your shift lever to M mode (next to drive) and then you can use the paddle shifters. It WILL rev match for you just like 6MT. Take my word for it. __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

05-25-2009, 04:22 AM	#6 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	AK is 100% correct. that is exactly how it works on my 7AT G37 __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

05-25-2009, 09:12 AM	#8 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	how were you driving. under normal conditions you hardly notice it. BUt during spirited driving and fast decell is when you see it feel it and hear it. So no0w you need to find a friend with a 7AT and find out foryourself instead of just saying no. __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

05-26-2009, 10:53 AM	#13 (permalink)
Lug A True Z Fanatic Join Date: Dec 2008 Location: Texas Posts: 1,926 Drives: 2006 350Z Rep Power: 19	DRM is SRM. SRM is new, DRM has been used for years. It feels the same as other AT's because it is the same. The manual is just catching up to what AT's have done for years. __________________ keep Chubbs in your pocket - Chubbs

05-25-2009, 02:04 AM	#2 (permalink)
leepeen Base Member Join Date: May 2009 Location: Vancouver Posts: 110 Drives: PW 370z Touring A7 Rep Power: 16	My z got 19" inch forged wheel with bridgestone Potenza tires, which mean's that my Z has sports package, no doubt on it.

05-25-2009, 02:06 AM	#3 (permalink)
frost Retired admin Join Date: Dec 2008 Location: Winterfell Posts: 106,613 Drives: Your Wife Crazy Rep Power: 0	Whoa, uhm. If I'm deciphering this correctly, there is rev match when you use the paddle shifters, but not in full automatic mode. But you have to downshift while slowing/stopping obviously for the rev match to work.

05-25-2009, 02:47 AM	#5 (permalink)
leepeen Base Member Join Date: May 2009 Location: Vancouver Posts: 110 Drives: PW 370z Touring A7 Rep Power: 16	Thank you Frost, Ak370z. :-)

05-25-2009, 09:14 AM	#9 (permalink)
FlashBazbo Base Member Join Date: Apr 2009 Location: Middle Tennessee Posts: 97 Drives: '09 370Z T-SP-7AT Rep Power: 0	Yep. It rev matches. The revs (and tach needle) come up just before the lower gear hits. And the lower gear doesn't hit with the same idiot jolt that a non-matching setup provides. No doubt it saves a lot of strain on the transmission but, functionally, it's not a lot different than an automatic without rev matching.

05-25-2009, 11:05 AM	#10 (permalink)
Chan Chee Hoe Track Member Join Date: Mar 2009 Location: Singapore Posts: 861 Drives: 370z,Yellow,7sp A Rep Power: 17	I tried to downshift for engine braking down a deep slope,it cause the engine to revs higher thus reduced the engine braking....for the first 2 secs the car would go faster instead of slowing down,really give me a shock.

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