Downshifting w/ 5EAT and Rev Matching

[zach999]

Is it possible to blip the gas to rev match while downshifting in the 5EAT? If so do you have to already have engaged the turbo (>3K rpm).

 

Zach

[wukindada]

Blipping the throttle will put you right where you want to be;) 3k does not work for me, but on a stock turbo should work just fine

[leggtnut]

I haven't tried on mine. But thought about trying sometime. the 08's do that by them sleves.

[el scorcho]

how would you blip the throttle on a 5EAT? aren't the gears always engaged?

[bradlgt21]

Yeah there is no clutch? You rev match with the clutch in. How can you rev while you are in gear... Unless you go to neutral and rev before you drop it into the gear. think this would be almost impossible to do. Don't the 5eats shift fairly smooth on there own. I mean its a auto right...

[Hagarr]

I am not too sure how you would rev match either...it pretty much takes care of itself.

 

B

[pillboy]

Just buy an effin manual already.

[MonkeyHermit]

Blipping would probably result in more tranny slippage than what is already occurring. Probably won't notice a huge difference, but over a long period of time you might find you need to replace your 5EAT slightly sooner, or feel the need to upgrade your valve body at a place like IPT.

[AKLGT]

i rev match when i need to, but then again, i'm not stock and i do have the VB upgrade.

[ToRealEyes]

Whattttt I'm lost. I have the 4eat, and ... how do you blip/rev match? I think I'm blending these two terms together...

[jagcars26]

Blipping the throttle will put you right where you want to be;) 3k does not work for me, but on a stock turbo should work just fine

 

Please enlighten us on how your doing this:)

[mwiener2]

07+ 5EAT has rev matching built-in

[bradlgt21]

REV MATCHING is a driving technique for shifting a manual transmission smoothly. One simply memorizes approximately how many RPMs different the various gears are from one another at the same speed, and then matches the engine's revs with the gear they are shifting in to. When upshifting, you just let the revs drop and slip into gear. When downshifting, you tap the throttle (or stomp on it depending on how long it takes to rev up.) This is often referred to as 'blipping' it. This works easily primarily because of the syncromesh gears in your transmission; if your transmission does not have them, this is very, very difficult to do without grinding. Even so, it takes the right touch.

For example, in one car the gears might all be approximately 1,000 RPM apart at the same speed. When downshifting from third to second, for example, you would apply accelerator pressure to raise the engine RPMs by 1,000 (say, from 3,000 to 4,000) and make your shift. You can then use engine braking to reduce your speed.

This practice results in reduced brakewear, less of a lurch when shifting from a higher gear to a lower one, less clutchslippage when shifting from a lower gear to a higher one, and a smoother shift without having to slip the clutch so much.

In autoracing, one often uses the more advanced form of this activity, heel-toeing (Alternately heel-toe braking or heel-toe downshifting) in which one's heel is on the brake pedal, decelerating, while the toe is on the gas pedal, accelerating. This allows the use of both the brakes and the engine to perform braking

[bradlgt21]

You automatic guys are just jealous and making stuff up.

[tdoggydog]

Well, not sure of all them fancy terms but, uh, having the paddle shifters when going up/down mountain roads works out real nice...but the manual-mode auto is great too if you want to hold the gear for longer periods of time.

[mwiener2]

REV MATCHING is .......

 

 

In autoracing, one often uses the more advanced form of this activity, heel-toeing (Alternately heel-toe braking or heel-toe downshifting) in which one's heel is on the brake pedal, decelerating, while the toe is on the gas pedal, accelerating. This allows the use of both the brakes and the engine to perform braking

 

 

 

Close and close

 

 

Rev Matching is a term, not a technique. Rev Matching means matching the engine revs to the gear the transmission is in. It is NOT a MT only technique. The difference between AT and MT Rev Matching is that the computer does all the matching in an AT while the driver does it with an MT.

 

Bliping or mashing would be techniques.

 

 

Heel toeing is done with the heel on the gas and the toe on the brake... being that the brake pedal is higher than the gas and your toe is higher than your heel. In autoracing it is done for 2 main reasons and engine braking isn't one of them. 1) In a forced induction engine it is used to keep the boost up while still slowing down for a turn 2) it is used in AWD cars to balance the load front to rear for a turn

 

Others will will comment on the importance of those 2 reasons but I'm sure most will agree engine braking is not very helpful on the track

[AKLGT]

Close and close

 

 

Rev Matching is a term, not a technique. Rev Matching means matching the engine revs to the gear the transmission is in. It is NOT a MT only technique. The difference between AT and MT Rev Matching is that the computer does all the matching in an AT while the driver does it with an MT.

 

Bliping or mashing would be techniques.

 

 

Heel toeing is done with the heel on the gas and the toe on the brake... being that the brake pedal is higher than the gas and your toe is higher than your heel. In autoracing it is done for 2 main reasons and engine braking isn't one of them. 1) In a forced induction engine it is used to keep the boost up while still slowing down for a turn 2) it is used in AWD cars to balance the load front to rear for a turn

 

Others will will comment on the importance of those 2 reasons but I'm sure most will agree engine braking is not very helpful on the track

agreed and well put.

 

YOU CAN REV MATCH AN AUTO. i don't know on the 4eat, if manual shift is available like on the 5EAT. as for "blipping" the throttle, i'm still unsure exactly what you mean by that. what i do is just lightly tap on the gas as i shift down, not very long or hard, just a tap on the gas/throttle.

[Carter]

My 08 GT has rev matching..

 

"Standard 5-speed adaptive electronic SPORTSHIFT® automatic with downshift rev-matching control"

[AKLGT]

My 08 GT has rev matching..

 

"Standard 5-speed adaptive electronic SPORTSHIFT® automatic with downshift rev-matching control"

that is new for 07/08. however the 05/06 does not have that.

[Ridgeracer]

isnt there is a slight delay in the sportshift of a 5EAT when you downshift? This would make it possible to rev match.

[icrackedcorn]

You automatic guys are just jealous and making stuff up.

[Richard B.]

"you guys are idiots" Greg House.

 

 

hahaha

 

when i think they mean is when downshifting manually, if you don't "rev match" you will be engine braking.

 

for all you drivers out there with an automatic, you MUST use brake and gas at the same time to get what you are asking for in this thread. i used to do this on my old auto mazda protege 5 when taking a corner. i also believe left foot brake is nothing new.

 

good day.

[Richard B.]

that is new for 07/08. however the 05/06 does not have that.

 

neither does my 07.

[mwiener2]

^^ Yes it does if it's a 5EAT

[AKLGT]

isnt there is a slight delay in the sportshift of a 5EAT when you downshift? This would make it possible to rev match.

with the VB upgrade, my delay is very small, hardly noticeable. now that i'm used to the car as is, it's hard to remember what it did before.