View Full Version : About launching this car @ 3k & 5k
2010 Rallihead Sportback
12-01-2009, 12:29 PM
I want to know if i doing this correct and if any of you been doing this too, its about launching this thing. Anyone else tried it? I have so, what i do is i put it in sport mode and turn off the traction control and with my feet i hold the gas and break getting the RPM to reach 3k and letting go of the break. it seems to work, but wanted to make sure it was right, and maybe get some feedback about maybe trying to let it reach 5k instead 3k before letting off.
I want to know if i doing this correct and if any of you been doing this too, its about launching this thing. Anyone else tried it? I have so, what i do is i put it in sport mode and turn off the traction control and with my feet i hold the gas and break getting the RPM to reach 3k and letting go of the break. it seems to work, but wanted to make sure it was right, and maybe get some feedback about maybe trying to let it reach 5k instead 3k before letting off.
Idk about 5K then again you got 2010. From what I have read so far is 3K safely or "SLOW DOWN" warning & limp mode.
TheBlackBeast
12-01-2009, 01:05 PM
Sounds like a great way to kill a clutch...
In my opinion, when you apply gas and brake at the same time, the power from the engine is being applied to the wheels, hence the reason for feeling the car lurch slightly when doing so. In order for the energy to dissipate somewhere, the computer would have to let the clutch slip until you let go of the brake.
A similar thing happens even on a full manual transmission layout with clutch pedal and gear box shifter. Your bringing the RPMs to 5k, then letting go of the clutch pedal, the clutch plate will be slipping like mad until enough friction is made that the car starts to move forward.
The end result is usually the smell of burnt clutch in the air afterwards - whether manual or SST. I only did a 5k rpm launch in my EVO 8 twice - I never experienced problems with my transmission in the 30k+ miles I had it. Other people complained their clutches were failing within 10k+ miles. It was likely they were dumping their clutches for 5k rpm launches. Friends were always bugging me to launch hard and I was always telling them NO. If they want to cough up $1200-$1500 to replace the clutch early then they always had the option of depositing it at my feet before doing so. They never took me up on the offer.
If it were me, I likely will never do the equivalent of a clutch dump in my RA. I need this thing to last a long time and clutch dumps just are not one of those things to promote longevity.
2010 Rallihead Sportback
12-01-2009, 09:14 PM
yea i get that slow down warnig sometimes, its like "transmission over heat slow down!!"
i think better practice is to use the hand brake. i've yet to try it since the car only has 600miles on it.
another thing. i wouldn't rev to 3k and hold it forever waiting for buddy next to you to stage.
the less time your holding 3k and braking the better imo. you'd probably avoid overheating the SST as well which it sounds like your doing.
CarGuy
12-03-2009, 09:15 AM
It seems that you guys are treating this transmission like an automatic with a torque converter rather than a manual transmission with a clutch that you can easily fry...next we'll be hearing complaints about burned out clutches and the expense that goes with it, because I'm pretty sure replacing the clutches on an SST isn't like replacing the clutch on a conventional manual transmission version.
Enjoy!
http://www.youtube.com/watch?v=U-4lBExVXdc
2010 Rallihead Sportback
12-04-2009, 01:34 PM
Enjoy!
http://www.youtube.com/watch?v=U-4lBExVXdc
man that sucks for that guy... guess im gonna have to take it easy on her from now on... :eek:
what i'd like to know is how the hell people are launching these cars then? if it seems whatever you do leads to trans failure. kinda lame if you ask me. ah well if the clutches go... they go. more reaons to put in the upgraded clutch discs i guess.
Daitonsralliart
12-15-2009, 03:24 PM
I think what it all comes down to is moderation!!! If you are doing a brake stand at every set of lights and trying to race everyone then you are obviously going to run into problems!!!:eek: I think we have all seen guys driving like this on city streets. Don't get me wrong I like to have fun in my car and yes I have done breakstands in my car :D but like stated earlier I do this in moderations ;).
laksman91
02-02-2010, 03:55 PM
Enjoy!
http://www.youtube.com/watch?v=U-4lBExVXdc
Man that really sucks, these trannys are very sensitive. It's a shame because of all the potential the car has
Blaze
02-02-2010, 05:26 PM
Man that really sucks, these trannys are very sensitive. It's a shame because of all the potential the car has
I've seen that one before. I'm not 100% certain it's a software issue.
Contact info@robispec.com. Ask for Robert Fuller. He has a hardware solution for this. (He had the same issues after beating his car up on the track).
Blaze
duminda
03-13-2010, 09:39 AM
I'm 100% with you "Daitonsralliart". first you should understand your car then you can get the best out of it
MikeW-RRE
03-13-2010, 11:16 PM
OK then.. who's gonna try a good old fashion 5k neutral drop then?
Mike W
NFERNO
01-31-2011, 03:15 PM
i tried the 5k neutral to drive drop against a08 SRT4 caliber, 4 spinning wheels scared him. not "SLOW DOWN " lights either. not something im going to make a habit of doing though. :D
i tried the 5k neutral to drive drop against a08 SRT4 caliber, 4 spinning wheels scared him. not "SLOW DOWN " lights either. not something im going to make a habit of doing though. :D
Any Video?
Neutral drop? These two words combined sound scary. :eek:
Who here is completely stock & would try it & record a video of the Neutral drop for our research purposes?
Anybody? If anything you can take it back under warranty. :D
In theory I dont see a problem. Other than yes stress on drivetrain but from what I have read it should be able to handle the abuse & its not fragile as what people believe it to be.
So who wants to be the guinea pig?
http://www.superevelyn.com/wp-content/uploads/2008/08/guinea-pig-weight.jpg
I guess nobody huh?
I think transfer case would be the weak link..
idk...
Maybe I will give it a try.
GAbOS
02-03-2011, 11:55 AM
Who here is completely stock & would try it & record a video of the Neutral drop for our research purposes?
Uhh.. Hell to the No! :D
http://www.youtube.com/watch?v=tW0jtxDpDHg&feature=player_embedded
I've been wanting to try it but have to control myself...
But in theory, instead of constant reving.
What if one was to time the tree?
first step to rev it up & second step to launch?
During my 1/4mile test & tune I just waited til the tree turn 3rd yellow & WOT
slight lag but it worked out for the best for me, as the tree turn green my lag was done & off I go...
I've been thinking about Neutral drop too, technically thats how 5spd launch 2stepping is. Same principle as Neutral drop.
So who is going to test it??? :D
I remember some guy on here did it to do a burnout... So it does work. lol
Cesarn2928
08-25-2011, 01:49 PM
that thing is gonna mess ur RA =[
AlphaKennyBody
08-26-2011, 05:21 PM
I've been wanting to try it but have to control myself...
But in theory, instead of constant reving.
What if one was to time the tree?
first step to rev it up & second step to launch?
During my 1/4mile test & tune I just waited til the tree turn 3rd yellow & WOT
slight lag but it worked out for the best for me, as the tree turn green my lag was done & off I go...
I've been thinking about Neutral drop too, technically thats how 5spd launch 2stepping is. Same principle as Neutral drop.
So who is going to test it??? :D
Negative... That is NOT how you would launch an Evo... the PROPER WAY to launch an Evo (5/6Speed) Is to pre-load the trans along with suspension and slip aggressively along with the WOT. If you dump the clutch trying to "launch" the car will jolt forward and then fall on it's face.
I have launched my 9 plenty of times and I cut 1.4-1.5 60ft ALL DAY.
N bomb the trans and we will see you post a part out thread and how you hate mitsu cause they didn't want to give you a new trans.
N bomb the trans and we will see you post a part out thread and how you hate mitsu cause they didn't want to give you a new trans.
Im not going to part out. I love my RA, my SST is better than the day I bought it.
My RA is dirty from dd over 37k miles now. Windshield still have some adhesive from tint removal. Tires are getting worn down. Brakes, I dont use it much since I dont speed, I drive speed limit. :)
None the less, I've tried it with rental cars, thats why I pay insurance so all I would have to do is bring back the keys. Also along with my list of whats-wrong-with-the-car when I return it. They would usually upgrade me to a better car next time around. :D
Yes, it would be stress to drive-train. Reason why I've been controlling myself from doing so.
I will once I better understand my RA, her in & out.
By no means am I trying to encourage anybody. Since this has been done by others, Im just trying to get better understanding what works & doesnt.
Why doesnt it work etc...
Once I have enough budget to bullet proof the SST I would try it.
AlphaKennyBody
08-26-2011, 08:38 PM
Noted.
Reasonw why i dont see it working is that... I dont think you can build boost off the line and of course it shortens the life span of the clutches. Being that the computer searches for certain things I dont think it would be the wises PLUS, like I was saying, i doubt you'd improve taking off.
With that said, being that I have a huge history with drag racing, You bound to blow the TC since the RA is kinda/if not based off the 9 technology. Just saying....... Have fun shoot us a video when you do it =)
I'm able to spin the tires launching the RA... not Chirp but Spin and I'm on the stock Turbo with the track being Prepped for traction.
RG-RA
08-26-2011, 10:43 PM
Noted.
Reasonw why i dont see it working is that... I dont think you can build boost off the line and of course it shortens the life span of the clutches. Being that the computer searches for certain things I dont think it would be the wises PLUS, like I was saying, i doubt you'd improve taking off.
With that said, being that I have a huge history with drag racing, You bound to blow the TC since the RA is kinda/if not based off the 9 technology. Just saying....... Have fun shoot us a video when you do it =)
I'm able to spin the tires launching the RA... not Chirp but Spin and I'm on the stock Turbo with the track being Prepped for traction.
how are you spinning tires what method for launching? also what size tires and type are you using?
AlphaKennyBody
08-27-2011, 03:09 AM
Stock Tires the Summer tires... and Tapping the gas to about 3300 RPM 22psi and off I go =)
Mike@RRE spins his and can vouch mine spins off the line.
RG-RA
08-27-2011, 04:03 AM
Stock Tires the Summer tires... and Tapping the gas to about 3300 RPM 22psi and off I go =)
Mike@RRE spins his and can vouch mine spins off the line.
ok that must be it, the tires. cause i use the same launch technique and am around 23psi and i cant get mine to spin, just a little squeel sometimes but im also on hankook ventus 245's
AlphaKennyBody
08-27-2011, 04:32 AM
ok that must be it, the tires. cause i use the same launch technique and am around 23psi and i cant get mine to spin, just a little squeel sometimes but im also on hankook ventus 245's
but depending on what model ventus.... your still at the same 280 TW.....
Also.. after you do a couple of passes I noticed the Clutches Grab harder... maybe I'm trippin but for sure I noticed the trans grab hard in each gear. ODD I wish I logged it but yeah.
I do lay down 284TQ at 2800 RPM hahaha =)
RG-RA
08-27-2011, 05:30 AM
lol yea after my rebuild im gonna get some dynos done but on the previous dyno(dynodynamics) which reads way high it said like 340 or something crazy haha. you have any 1/4 or 1/8 times?
and they are ventus v12 evo's
Also.. after you do a couple of passes I noticed the Clutches Grab harder... maybe I'm trippin but for sure I noticed the trans grab hard in each gear.
From what I understand fluid get hot & it expend. So that would explain your clutches grabing harder or could just be in your head.:D:D
I did stock run after my stock yoko was bald. All I had was K&N Filter. Full weight. Stock tune to 225whp.
No launch 1/4 Sport mode/ASC off Manual 13.4sec @ 101mph.
i1 was 2.161 no launch.
Im planning on going again with my recent touch up.
Hopefully, It will be in the 12sec.
Lost some weight on myself & the RA, spare is out. added some power with FMIC tune & SST tune made it shift much smoother.
I know I kept up with evo X gsr 360whp on e85, he got me on the take off with 2step & that was about it. He couldnt pull away & I couldnt close the gap. Im at 245whp. I lost by half a car length. :( No times just fun.
If I launch my RA it would've been very close.
AlphaKennyBody
08-27-2011, 11:12 AM
lol yea after my rebuild im gonna get some dynos done but on the previous dyno(dynodynamics) which reads way high it said like 340 or something crazy haha. you have any 1/4 or 1/8 times?
and they are ventus v12 evo's
Me Personally I've ran a 13.1's unofficial (Private Test N Tune sessions) but recently 13.3@99 *publicly*. Both ran with Full Sport Manual, ASC Off, and Tires Set to 29 psi. It also sucked with 105+ Degrees out
Mods are only a Catback+Cat Delete,K&N Drop In and Boost Pill running a GST map which my AFR's are in the 10's haha almost 9's = SUPER Rich and can make more power with a full tune.
From what I understand fluid get hot & it expend. So that would explain your clutches grabbing harder or could just be in your head.:D:D
LOL No Seriously I've noticed it now... once the Trans gets really warm or whatnot, The Shifts are snappier and seems FAST. I know there's been a few times shifting from 1-3 after running the car hard or for a track session, the shifts feel like when driving a 5 spd, your just kicking in the clutch to shift right away. I just drove the car up the canyon RIGHT NOW and verified my statement. :D hahaha
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