Oh I agree, the story was ok, but .. Couldn't they have talked to real enthusiasts and made the movie more accurate? Accuracy is key, and they didn't have it. I mean, you don't need to make 1/4 mile 15 sec in real time, you can do slo mo and stuff, but to have so many fallacies, it just made the movie worse. The story was cool; I kno the places where they filmed all the Vietnamese gangster areas. =) I hang out at some of em haha.

Black / Black 2004 GcoupeMT. Premium. Splash Guardz.

 

the worst part of the movie was the after-effects. Sooo many people started street racing that really shouldn't have. I've heard stories of stock trucks and minivans racing each other...come on now. I also really liked how they got a significant boost of speed when they shifted gears...it's as if a shot of nitrous was accompanying each gear shift. haha. Oh, to make it worse, the other guy would shift after seeing how the dude he was racing shifted and he would catch up...pure comedy...why not shift when u need to? not when the other guy shifts.

'03 G35c DG/G 6mt, full options<P ID="edit"><FONT class="small"><EM>Edited by kwakman on 12/13/03 01:14 PM.</EM></FONT></P>

 

I've never heard of so many people double clutching on downshifts. Main reasons to double clutch are A) You can't get the car in gear cuz it's either damaged or no synchros to align it right. B) Cold weather. If you're racing and you double clutch on the downshift you're still losing valuable time. Heel-Toe my friends. I've never had to double clutch. Drag racing you definitely don't want to double clutch unless absolutely necessary. I had to with my Evo cuz 1-2 shift was messed up. I lost about 3-4 tenths of a second cuz of that crap.

Bottom line is don't do it. You'll know when you need to use it.

 

<blockquote><font class="small">In reply to:</font><hr>

so are all you guys double clutching your 6MT's when downshifting? I've just been leaving it in whatever gear until my speed decreases to fit the lower gear, then downshift into it. It jerks slightly, less if I release the clutch slower. Maybe I should dry the double clutch technique.

<hr></blockquote>
You do not need to double clutch to downshift on newer cars like ours (unless syncros aren't working, etc). When you're putting it into a lower gear, try matching revs before you let the clutch out. This means that you rev the engine up to the RPM it's gonna be at once you let the clutch out before you actually let the clutch out. That will eliminate (or at least minimize) the jerking that you get when you finally do let the clutch out. And yes, this will take some practice before you know what RPM it needs to be at...just takes some getting used to.

2003 G35 Coupe
Black, Willow, 6spd, Aero, Prem, Tint

 

thanks for the tip rwjcp

04 Black G35C 6MT | Premium | Navigation

 

That tip rwjcp just gave is called Heel-Toe which is what I said. Great technique that when practiced will garner huge improvements.

 

interesting... yeah i dont understand the deal in the movie about him needing to double clutch. Unless he wanted to just rev the car to higher rpm and then punch the NOS so the car wouldnt jerk so hard once the NOS is pressed. Double clutching causes less stress on the engine anyways.

When i had my integra i double clutched when i wanted to downshift and punch it. The car doesnt jerk and i can punch it with ease.
That website on double clutching... i dunno if its me... but what he says isnt really what you do i dont think. i just did everything at once.

Once im ready to downshift... i let go of throttle and then press the clutch REVd the car and by the time i let go of the clutch i would already be in the lower gear that i wanted to shift into and then gas the car once i let the clutch go... its like a split second of movement. because steppin on the clutch is like having the car in neutral is it not?

 

that is not double clutching, that is rev matching

double clutch:
get ready to down shift, push clutch in, put shifter in neutral, let clutch out, rev to match new gear, push clutch in, shift to new gear, let clutch out while maintaining revs.

The amazing part is there were drivers who could do all that in less than a second whereas the average driver takes about a second to do a normal UPshift.

By the way proper rev matching befor downshifting, and pausing to allow revs to fall on upshifts will lengthen your clutch's life significantly.

Putting the car in neutral and letting the clutch out at stop lights is also supposed to be good for the tranny (throwout bearing?)

Better Life thru Chemistry
Black on Black 03.5 Sedan 6MT - Custom Catback, Custom Intake Tube, HyperGround Kit

 

I like coasting in Neutral whener I can (especially down hills). When it is time to put the car in gear, I decide what gear I want and determine what the RPM will be for that gear. While in Neutral, I step on the gas, match the revolutions, and put the car in gear. Smooth as butter.

I figure I must be saving gas if I'm going downhill at 60 mph, but the tach only reads 1K. I only put the car in gear if I want to engine brake.

I once heard it was illegal to coast downhill in Neutral. Is that true? I always wondered about this because how can anyone know whether you're in Neutral or in gear?


2003.5 G35 Sedan 6MT Brilliant Silver on Graphite
Premium/Aero/Sport/Tints/Factory Chrome Rims

 

It's illegal to have your car in neutral while operating it in traffic; at a stop light, rolling down a hill, whatever.

Say you get rear ended while waiting for a stop light in neutral. You'll shoot forward into oncoming traffic. If you were in gear, you would most likely take your foot off the clutch and you'd stall and come to a stop.

If you're rolling down a hill in neutral and suddenly you had to do an emergency maneuver such as dodge an animal or a road hazard like a rock or a downed tree, your reaction time would seriously be extended if you had to select a gear quickly from neutral vs. already being in gear.

Also, rolling your vehicle with your drive wheels without the motor running at RPM isn't great for your transmission. Oil isn't getting proper pressure to circulate.

Just some advice - take it or leave it.

 

and this is why you don't tow a front wheel drive with it's front wheels on the ground. Or tow a rear wheel drive car with it's rear wheels on the ground. If you do tow the car with the drive wheels on the ground get ready for a nice smell at your destination.

BS G35C 6spd navi/aero/prem

 

"Also, rolling your vehicle with your drive wheels without the motor running at RPM isn't great for your transmission. Oil isn't getting proper pressure to circulate."

did not know that, thanks

Twlight blue/Willow 6mt on order. Options: Sunroof.

 

Yea, thnx for the info. I always tried to put it in neutral wen I can to save gas. =\ I gess thats a bad thing now?

Black / Black 2004 GcoupeMT. Premium. Splash Guardz.

 

Also, rolling your vehicle with your drive wheels without the motor running at RPM isn't great for your transmission. Oil isn't getting proper pressure to circulate.

Wow. Interesting stuff, Tatoodles. Thanks for sharing. I would agree with everything you said, but can you explain the oil bit a little more? How does having the correct RPMs ensure proper pressure?

I guess this also ties in to the OvaYaHead's comment about towing. Can you guys explain this in more detail? And if this is the case, what about AWD cars? How are you supposed tow those?


2003.5 G35 Sedan 6MT Brilliant Silver on Graphite
Premium/Aero/Sport/Tints/Factory Chrome Rims

 

im guessing a flatbed to tow the AWD cars