Confirmed : SST 1st gear throttle limit MR vs RA
i dont think you want to launch 100 % throttle.. Maybe sounds great for some , but i do not think you want to do that ever. And as you get more power mods and better tires , less you want to do that. Specially cars like the EVo. /awd/
If you like to bog the launch, then less then WOT.
On the RA you can't really launch WOT as there is no launch control like the Evos.
- Bryan
You tell shep, BR, AMS, AWD, MAP, STM - etc.. that they shouldnt be launching their evo wot lol
But of course its my opinion, only.
Rob
ps this should be a hint LOL
"On the RA you can't really launch WOT as there is no launch control like the Evos"
up hill launch, i hold on two step/ which also cuts power/ and just before launch i let the rpm go lower realise the throttle. Only reason i hold on two step , because i dont look at the start lights. That is my co driver does and she calls the "go" .
0.50 minute when i launch up hill, with not even close to the 100% throttle.
http://www.youtube.com/watch?v=b2Tcb2S0M20
Last edited by Robevo RS; Nov 6, 2010 at 05:49 AM.
You launch your evo as you want it, it is your buisness. Im launching my evo as i do , and i have 0 history to brake or damage on my car anything, caused by launch abuse.
And as you go higher powered cars you need less throttle on the standing, since you have more power to deliver with less throttle imput. Also you dont want to let the tire brake loose, which means - equals slower launch time.
Many pro guys has a full throttle launch , but they have limited boost in each gears... Which is leads to back the same principal , cutting power in lower gears.... Now since we do not have that pleasure and comfort, we can play with throtlle or clutch. Now the MR doesnt have a clutch , so i guess you got a picture. /i hope/
Rob
hm... i dont ever launch my evo, /if i think back ever any of my car, unless it was 1.4 l engine LOL/ with full throttle.Sure after im rolling i floor it. We have enough power in first gear, to get tires loose, so for fast launch you dont want to brake tires. Also the full throttle lunch is costly, and i personally think slower since something else will slipp which you wont control as much as the throttle. I did bog down couple of times launching my car, but that cause my staging brake stock i think 4-5 times untill we got the air bubble out of it... LOL I dont bug at launch even with steep up hill, and im still not on full throttle./ my car is not so power full. im running 338 ft/lbs on wheel/
But of course its my opinion, only.
Rob
ps this should be a hint LOL
"On the RA you can't really launch WOT as there is no launch control like the Evos"
up hill launch, i hold on two step/ which also cuts power/ and just before launch i let the rpm go lower realise the throttle. Only reason i hold on two step , because i dont look at the start lights. That is my co driver does and she calls the "go" .
0.50 minute when i launch up hill, with not even close to the 100% throttle.
But of course its my opinion, only.
Rob
ps this should be a hint LOL
"On the RA you can't really launch WOT as there is no launch control like the Evos"
up hill launch, i hold on two step/ which also cuts power/ and just before launch i let the rpm go lower realise the throttle. Only reason i hold on two step , because i dont look at the start lights. That is my co driver does and she calls the "go" .
0.50 minute when i launch up hill, with not even close to the 100% throttle.
- Bryan
--
Rally driving is much different than drag racing. Both require different styles and if you test which is fastest for you (or fits your requirement to not break parts) then use that.
I think you would be hard pressed to find a high level drag racer that didn't launch at full throttle, but not all people looking to start quickly are drag racing (or driving on tarmac, or have the correct tires / suspension, etc).
Can we get back on topic now?
I can see why Mitsu may have restricted throttle opening to 45% in order to take the torque hit out of the power curve and prolong SST tranny life when they had little data on hand for reliability. This may work reasonably well with stock turbo setups with potentially monster low end torque but the real issue is that once you upgrade to a higher flowing turbo the lag in 1st gear becomes much too severe to get a proper launch. This is limiting the upgraded turbo MR's out there and only recently have they been able to crack into the high 11's in the 1/4 mile.
Hopefully you guys can figure out how to disable this feature, or even better yet be able to manipulate it yourself. I could actually see a performance gain if you limit the throttle to where the car starts breaking tires loose on a conistant basis and use it to smooth out power delivery as boost hits peak torque in 1st gear. Stock turbo cars would probably only need to bump the max throttle angle to 70-80% where as the larger turbos would probably need every percent they can get, maybe only a slight reduction later in the RPM band since it takes longer to spool to help avoid a sudden shock of torque going from 0 psi to 25+ psi. Obviously this is just a theory until the code is cracked and people can test to see what works best.
Hopefully you guys can figure out how to disable this feature, or even better yet be able to manipulate it yourself. I could actually see a performance gain if you limit the throttle to where the car starts breaking tires loose on a conistant basis and use it to smooth out power delivery as boost hits peak torque in 1st gear. Stock turbo cars would probably only need to bump the max throttle angle to 70-80% where as the larger turbos would probably need every percent they can get, maybe only a slight reduction later in the RPM band since it takes longer to spool to help avoid a sudden shock of torque going from 0 psi to 25+ psi. Obviously this is just a theory until the code is cracked and people can test to see what works best.
Last edited by Hiboost; Nov 8, 2010 at 07:36 AM.
