REVscene - Vancouver Automotive Forum


Welcome to the REVscene Automotive Forum forums.

Registration is Free!You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today! The banners on the left side and below do not show for registered users!

If you have any problems with the registration process or your account login, please contact contact us.


Go Back   REVscene Automotive Forum > Technical Discussion > Maintenance, Engine & Driveline Tech

Maintenance, Engine & Driveline Tech This forum is brought to you by The Speed Syndicate (TSS) in Burnaby.
Discussion of maintaining your engine, transmission, differentails, rear ends, and mods associated with "driveline" parts..

Reply
 
Thread Tools
Old 10-28-2010, 08:20 PM   #1
Banned (ABWS)
 
Join Date: Jul 2010
Location: BC
Posts: 64
Thanked 6 Times in 4 Posts
give her gas befor down shifting?

sup all i just picked up an rsx-s a few days ago and im a bit confuzed about downshifting still, i had a stick car in the past but never bother giving gas when i down shifted, now that this car is much more expensive i would like to down shift properly..

someone told me u need to give it gas befor down shifting, now i've tried this so far and i dont know if i should hold the gas down a bit while releasing the clutch or give gas and let go of the gas, And then let the clutch go to down shift?
Advertisement
shtone is offline   Reply With Quote
Old 10-28-2010, 08:28 PM   #2
Diagonally parked in a parallel universe
 
rJZx's Avatar
 
Join Date: Jun 2010
Location: bc
Posts: 1,483
Thanked 1,730 Times in 374 Posts
You really don't have to put in gas when downshifting... balancing it just makes it a smoother transition.
rJZx is offline   Reply With Quote
This post thanked by:
Old 10-28-2010, 08:59 PM   #3
Banned (ABWS)
 
Join Date: Jul 2010
Location: BC
Posts: 64
Thanked 6 Times in 4 Posts
just wanted some some advice from experienced drivers thanks!
shtone is offline   Reply With Quote
Old 10-29-2010, 08:23 AM   #4
I answer every Emotion with an emoticon
 
sonick's Avatar
 
Join Date: Oct 2005
Location: Revscene
Posts: 7,974
Thanked 5,617 Times in 1,792 Posts
You don't HAVE to give it gas, as the syncro's in the transmission will compensate for the rev mismatch. However, it is not a bad habit to pick up as it smooths out the shift and it saves syncro wear.

Just blip the throttle (gas and let go) when you have the clutch pedal down.

Fk I miss driving a manual.
__________________
Quote:
Originally Posted by skyxx View Post
Sonick is a genius. I won't go into detail what's so great about his post. But it's damn good!
2009 BMW 128i - Daily Driver
2007 Toyota Rav4 Sport V6 - Wifey's Daily Driver
1999 Mazda Miata - Sold
2003 Mazda Protege5 - Sold
1987 BMW 325is - Sold
1990 Mazda Miata - Sold

100% Buy and Sell Feedback
sonick is offline   Reply With Quote
Old 10-29-2010, 08:44 AM   #5
I WANT MY 10 YEARS BACK FROM RS.net!
 
Soundy's Avatar
 
Join Date: Jan 2006
Location: Abbotstan
Posts: 20,721
Thanked 12,136 Times in 3,361 Posts
Quote:
Originally Posted by shtone View Post
someone told me u need to give it gas befor down shifting, now i've tried this so far and i dont know if i should hold the gas down a bit while releasing the clutch or give gas and let go of the gas, And then let the clutch go to down shift?
The idea is just to match the engine revs to the lower gear. For example, say when you're in second and doing 60k, you're at 4000rpm (just pulling random numbers out here, BTW)... then if you're doing 60 in third and wanting to downshift to second, you'd rev up to around 4000rpm before releasing the clutch, so you don't get that sudden deceleration.

How you get there isn't really critical, so just practice it and use a method that's comfortable for you. As sonick says, you don't HAVE to do it, it just makes your driving smoother.

(I miss driving a manual too...)
__________________
Quote:
Originally Posted by Godzira View Post
Does anyone know how many to a signature?
..
Quote:
Originally Posted by Brianrietta View Post
Not a sebberry post goes by where I don't frown and think to myself "so..?"
Soundy is offline   Reply With Quote
Old 10-29-2010, 08:46 AM   #6
I answer every Emotion with an emoticon
 
sonick's Avatar
 
Join Date: Oct 2005
Location: Revscene
Posts: 7,974
Thanked 5,617 Times in 1,792 Posts
Plus, if you rev-match perfectly, the shifter slides into gear slicker than a wet vagina.
__________________
Quote:
Originally Posted by skyxx View Post
Sonick is a genius. I won't go into detail what's so great about his post. But it's damn good!
2009 BMW 128i - Daily Driver
2007 Toyota Rav4 Sport V6 - Wifey's Daily Driver
1999 Mazda Miata - Sold
2003 Mazda Protege5 - Sold
1987 BMW 325is - Sold
1990 Mazda Miata - Sold

100% Buy and Sell Feedback
sonick is offline   Reply With Quote
This post thanked by:
Old 10-29-2010, 08:48 AM   #7
RS Veteran
 
Spidey's Avatar
 
Join Date: Nov 2001
Location: vancouver
Posts: 8,778
Thanked 1,265 Times in 618 Posts
Quote:
Originally Posted by sonick View Post
Plus, if you rev-match perfectly, the shifter slides into gear slicker than a wet vagina.
lolol what he said!!!!! but yea.. if you rev match=easier on synchros.. and smoother transition.. that is pretty much it. i am lazy and hardly rev match anymore.. unless i am going from higher to lower gear at high rpms... but i just blip the gas
Spidey is offline   Reply With Quote
Old 10-29-2010, 10:03 AM   #8
Diagonally parked in a parallel universe
 
rJZx's Avatar
 
Join Date: Jun 2010
Location: bc
Posts: 1,483
Thanked 1,730 Times in 374 Posts
Quote:
Originally Posted by sonick View Post
Plus, if you rev-match perfectly, the shifter slides into gear slicker than a wet vagina.
plus it makes you feel like your the boss haha jk.
rJZx is offline   Reply With Quote
Old 11-05-2010, 03:26 PM   #9
Wunder? Wonder?? Wander???
 
mx555's Avatar
 
Join Date: Feb 2009
Location: vancouver
Posts: 240
Thanked 44 Times in 11 Posts
So if I rev match I won't wear out the synchros? How long do they usually last? Do I have the let the clutch out once or twice? Cuz I heard some people talking about double clutching, but I'm not too sure why u need to press the clutch twice for one shift.
Posted via RS Mobile
mx555 is offline   Reply With Quote
Old 11-05-2010, 03:31 PM   #10
Ricer Mod
 
Berzerker's Avatar
 
Join Date: Mar 2005
Location: Smithers
Posts: 7,000
Thanked 5,232 Times in 1,498 Posts
Granny shifting not double cluchin' like you should....


That's noob. Did you know you can drive without the clutch at all!!! Try revmatching and not using the clutch you'll find you can shift gears still. Crazy I know!

Berz out.
__________________
President of RS Beat Down Crew
Berzerker is offline   Reply With Quote
Old 11-05-2010, 03:38 PM   #11
The RS Freebie guru
 
InvisibleSoul's Avatar
 
Join Date: Jul 2001
Location: East Vancouver
Posts: 22,032
Thanked 2,491 Times in 860 Posts
1.) Step on clutch
2.) Apply some throttle
3.) Downshift
4.) Release clutch

Steps 2 & 3 can be done interchangeably or concurrently.
InvisibleSoul is offline   Reply With Quote
Old 11-05-2010, 05:53 PM   #12
RS controls my life!
 
Puck Luck's Avatar
 
Join Date: Apr 2004
Location: lower mainland
Posts: 750
Thanked 93 Times in 78 Posts
Quote:
Originally Posted by InvisibleSoul View Post
1.) Step on clutch
2.) Apply some throttle
3.) Downshift
4.) Release clutch

Steps 2 & 3 can be done interchangeably or concurrently.
this helps match road speed to engine speed and smooths out clutch engagement.
Doesn't really help for actual shifter movement/engagement, or matching transmissioin input to output speed though. When you step on the clutch, you've now disconnected the input shaft from the engine and can't possibly raise input shaft speed. Unless it's raised using the synco's, via the output shaft (road speed). This last sentence is what caused wear on the syncos
__________________
Don't open your hood to strangers........ N 'ouvrez pas votre capot des inconnus
Puck Luck is offline   Reply With Quote
Old 11-05-2010, 06:21 PM   #13
Need to Seek Professional Help
 
Join Date: Jun 2010
Location: Vancouver
Posts: 1,076
Thanked 359 Times in 162 Posts
Quote:
Originally Posted by shtone View Post
wow theres seriously some dumb fucks on this forum..

.....

gees this forums filled with fuck tards i dont think i will use this shit no more
thought you were done with revscene
impulseX is offline   Reply With Quote
Old 11-06-2010, 12:23 PM   #14
Wunder? Wonder?? Wander???
 
mx555's Avatar
 
Join Date: Feb 2009
Location: vancouver
Posts: 240
Thanked 44 Times in 11 Posts
Quote:
Originally Posted by Puck Luck View Post
this helps match road speed to engine speed and smooths out clutch engagement.
Doesn't really help for actual shifter movement/engagement, or matching transmissioin input to output speed though. When you step on the clutch, you've now disconnected the input shaft from the engine and can't possibly raise input shaft speed. Unless it's raised using the synco's, via the output shaft (road speed). This last sentence is what caused wear on the syncos
Thaaaat's what I was looking for.
Pay attention kids, this man is 100% correct.
It doesn't save synchro wear, unless Ur double clutching. It doesn't make the shifter go in faster.
All it does is make the transition smooth.
Posted via RS Mobile
mx555 is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -8. The time now is 07:42 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
SEO by vBSEO ©2011, Crawlability, Inc.
Revscene.net cannot be held accountable for the actions of its members nor does the opinions of the members represent that of Revscene.net