Notices
Evo X General Discuss any generalized technical Evo X related topics that may not fit into the other forums.
Sponsored by:
Sponsored by: CARiD

Need help downshifting

Old Aug 18, 2016 | 04:41 PM
  #16  
VDubJCabe's Avatar
Newbie
 
Joined: Mar 2014
Posts: 80
Likes: 3
From: yellowknife
Originally Posted by Napalm_Enema
wut?

You can't be serious.

You're dropping down a gear without rev matching etc. you're just eating up clutch and synchros.

My heavy driven 08 STi clutch lasted 110 miles with mods and HARD but proper driving. Good luck doing that without rev matching.

Dead serious. Highest posted speed limit in my city is 70km. my rpm/speed is never really that high. I don't see the point in rev matching. If my speed is low, my rpm is low and say i'm going from 3-2, why rev match? its not like my rpm will be over 3500 when I go into second. i'm not letting off the clutch super fast.
Reply
Old Aug 18, 2016 | 07:36 PM
  #17  
CaptainCrunch's Avatar
Evolved Member
 
Joined: Jul 2015
Posts: 565
Likes: 13
From: Earth.
And that feels good to you?
Reply
Old Aug 18, 2016 | 07:37 PM
  #18  
Mr. Mojo's Avatar
Newbie
 
Joined: May 2016
Posts: 67
Likes: 4
From: 215
Originally Posted by CaptainCrunch
And that feels good to you?
Lol, I can't imagine it would
Reply
Old Aug 18, 2016 | 07:40 PM
  #19  
CaptainCrunch's Avatar
Evolved Member
 
Joined: Jul 2015
Posts: 565
Likes: 13
From: Earth.
Originally Posted by Mr. Mojo
Lol, I can't imagine it would
For real. That jerk must just be vtech kicking in?
Reply
Old Aug 18, 2016 | 09:19 PM
  #20  
Virtual's Avatar
Thread Starter
Newbie
 
Joined: Aug 2013
Posts: 54
Likes: 3
From: Orange County
Originally Posted by CaptainCrunch
For real. That jerk must just be vtech kicking in?
That jerk has to be bad for the transmission right? The only time I get that jerk now is when I mess up trying to rev match, going from 3rd gear to 2nd gear.
Reply
Old Aug 19, 2016 | 06:25 AM
  #21  
Napalm_Enema's Avatar
Evolved Member
 
Joined: Nov 2013
Posts: 1,538
Likes: 91
From: Houston
Originally Posted by VDubJCabe
Dead serious. Highest posted speed limit in my city is 70km. my rpm/speed is never really that high. I don't see the point in rev matching. If my speed is low, my rpm is low and say i'm going from 3-2, why rev match? its not like my rpm will be over 3500 when I go into second. i'm not letting off the clutch super fast.
Because you are just burning up your clutch and synchro's doing that. Every time you don't rev match all that energy and force is directly absorbed by those components. Now if you're balling out of control and can just buy clutches every now and then and a transmission service for no other reason than bad driving, that's your call.

I'd rather drive the clutch for the anticipated life of the clutch and never need synchro work / transmission work done because I didn't stress those components like you are doing.

If it wasn't necessary to rev match, why do they bother programming that into cars like the M2, 370z and others?
Reply
Old Aug 19, 2016 | 06:26 AM
  #22  
Napalm_Enema's Avatar
Evolved Member
 
Joined: Nov 2013
Posts: 1,538
Likes: 91
From: Houston
Originally Posted by Virtual
That jerk has to be bad for the transmission right? The only time I get that jerk now is when I mess up trying to rev match, going from 3rd gear to 2nd gear.
practice makes perfect...
Reply
Old Aug 19, 2016 | 07:23 AM
  #23  
Mr. Mojo's Avatar
Newbie
 
Joined: May 2016
Posts: 67
Likes: 4
From: 215
Originally Posted by Napalm_Enema
practice makes perfect...
Practice makes better lol....Electronic controls make perfect.

But nah, in all honesty, when I get my Rev matches right I feel like the man. When I get them slightly wrong I'm automatically trying to figure out what went wrong (not enough gas, bringing up the clutch too early while the engine is revving). I get perfect ones maybe 60-70% of the time, and the other ones are maybe 200rpm off. Coming off the clutch smooth seems to forgive underrevving.
Reply
Old Aug 19, 2016 | 07:33 AM
  #24  
LetsGetThisDone's Avatar
EvoM Guru
10 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Oct 2013
Posts: 15,973
Likes: 1,629
From: Las Vegas
Originally Posted by Napalm_Enema
So 'leaving it in 3rd' could be fine, but know the following things about a small motor + turbo -

It's VERY bad for you to be at a low RPM high load. So for instance, if you are in 5th gear and going 30mph and want to pass someone - DON'T FLOOR IT.

Downshift.

High load - low RPM = death to turbo engines, especially when modded. You might get away with it stock, but it is still not advised.

So if you do roll through a corner in 3rd, unless you're going pretty quickly, ease on the gas and slowly build up to speed.

Good rule of thumb - Don't floor it unless you are over 3200 RPM's in these cars.
Idk where this info came from, but it's wrong. As long as your car is tuned properly to manage torque, it does not matter. It also doesn't matter when the car is stock.
Reply
Old Aug 19, 2016 | 07:38 AM
  #25  
Mr. Mojo's Avatar
Newbie
 
Joined: May 2016
Posts: 67
Likes: 4
From: 215
Originally Posted by letsgetthisdone
Idk where this info came from, but it's wrong. As long as your car is tuned properly to manage torque, it does not matter. It also doesn't matter when the car is stock.
Hey I'm curious as well, I've heard that lugging a turbo car is bad, so I'm always wary (last car was NA). I would imagine lugging to be under 2k, where that noticeable vibration is).

I don't know anyone who would floor it in 5th gear from 30mph....especially in theae...wouldn't u be pretty much about to stall from being that low?
Reply
Old Aug 19, 2016 | 07:43 AM
  #26  
Napalm_Enema's Avatar
Evolved Member
 
Joined: Nov 2013
Posts: 1,538
Likes: 91
From: Houston
Originally Posted by letsgetthisdone
Idk where this info came from, but it's wrong. As long as your car is tuned properly to manage torque, it does not matter. It also doesn't matter when the car is stock.
If you don't know or believe that high load / low RPM is bad for these kinds of cars, ESPECIALLY when modded... I don't know what to tell you. It's a fact, and has caused MANY engine failures for those that thought it would be a good idea to floor it at a low RPM.

Here, from a well respected tuner:

http://www.evoxforums.com/forums/sho...14&postcount=5
Reply
Old Aug 19, 2016 | 07:48 AM
  #27  
Mr. Mojo's Avatar
Newbie
 
Joined: May 2016
Posts: 67
Likes: 4
From: 215
Only one way to solve this.

Letsgetthisdone has to lug his engine over time to disprove it, since nothing bad will happen. Lol
Reply
Old Aug 19, 2016 | 08:47 AM
  #28  
hoobastnk90's Avatar
Evolved Member
 
Joined: Feb 2012
Posts: 1,253
Likes: 21
From: Ofallon, MO
this thread is getting to be dumb...just practice driving the damn car...your going to kill your clutch either way because you are learning on a car that is not forgiving to newer drivers...start saving now...clutch jobs for this car are expensive
Reply
Old Aug 19, 2016 | 09:10 AM
  #29  
zeRep85RA's Avatar
Evolving Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Dec 2010
Posts: 185
Likes: 10
From: Riverside, CA
Originally Posted by Napalm_Enema
If you don't know or believe that high load / low RPM is bad for these kinds of cars, ESPECIALLY when modded... I don't know what to tell you. It's a fact, and has caused MANY engine failures for those that thought it would be a good idea to floor it at a low RPM.

Here, from a well respected tuner:

http://www.evoxforums.com/forums/sho...14&postcount=5
lol pretty funny said tuner is BANNED!


z
E
R
E
p
Reply
Old Aug 19, 2016 | 09:45 AM
  #30  
moparfan's Avatar
Evolved Member
 
Joined: Nov 2015
Posts: 1,066
Likes: 29
From: Tri-State NY/NJ/CT
Originally Posted by zeRep85RA
lol pretty funny said tuner is BANNED!


z
E
R
E
p
Why?
Reply

Thread Tools
Search this Thread

All times are GMT -7. The time now is 11:38 AM.