How-to launch your FC
#1
88 AE
Thread Starter
Join Date: Mar 2002
Location: N/A
Posts: 2,865
Likes: 0
Received 0 Likes
on
0 Posts
How-to launch your FC
The other day I was driving my dads TA and I stopped to do a launch. I feathered the clutch and my dad got mad and told me you should never feather the clutch when you launch. I was confused because I always feather the clutch in my n/a. Well with drag racing season coming up I want to see your guys/girls techniques for launch your car and what yields the best results.
PS- The best 60' time I pulled last year was a 2.29 on all-season tires. Should this be lower?
PS- The best 60' time I pulled last year was a 2.29 on all-season tires. Should this be lower?
#3
Senior Member
Join Date: Sep 2002
Location: Southern California
Posts: 343
Likes: 0
Received 0 Likes
on
0 Posts
i just slam the gas a split second before i let out the clutch.... By feathering the clutch do you mean like slowly letting the clutch until you feel it grab??..... i wouldnt do that..... i dont know why but it doesnt feel right. good luck
#4
88 AE
Thread Starter
Join Date: Mar 2002
Location: N/A
Posts: 2,865
Likes: 0
Received 0 Likes
on
0 Posts
By feathering the clutch do you mean like slowly letting the clutch until you feel it grab??.....
#5
Senior Member
Join Date: Sep 2002
Location: Southern California
Posts: 343
Likes: 0
Received 0 Likes
on
0 Posts
well instead of that i would just launch from a lower RPM. I used to have to launch at 3k but now i put 215's on my back wheels and put a front eibach anti-sawy bar on. Now i can launch from 4500, it just sticks to the ground. If you want a good lauch them fix up your suspension and get good tires...... I LOVE TO LAUNCH!!!!
#6
88 AE
Thread Starter
Join Date: Mar 2002
Location: N/A
Posts: 2,865
Likes: 0
Received 0 Likes
on
0 Posts
Ill go out with my G-tech later and see if I can pull some decent launches using that method. Man i wish I had 215s on the back. My cousin just got 315s on the back of his Supra and that are beastly wide.
#7
Senior Member
Join Date: Sep 2002
Location: Southern California
Posts: 343
Likes: 0
Received 0 Likes
on
0 Posts
315's?!?!?!?!? damn...... thats like 1/3 bigger than mine!!!! ****.... my friend has 225's on his mustang and those are huge..... Maybe you mis-typed that..... damn...... 315's
Trending Topics
#11
Yar-Har-Har
Join Date: Sep 2002
Location: Nashville, 37217
Posts: 1,954
Likes: 0
Received 0 Likes
on
0 Posts
launching is something, im still trying to get good at...
i need some tips....
i have sorta decent tires in the back, and i need to know what rpm to let 1st gear go in and when to shift to second......etc....
any help would be great
=-dustin
i need some tips....
i have sorta decent tires in the back, and i need to know what rpm to let 1st gear go in and when to shift to second......etc....
any help would be great
=-dustin
#14
Rotary Enthusiast
Join Date: Mar 2001
Location: St. Charles, IL
Posts: 833
Likes: 0
Received 0 Likes
on
0 Posts
launching is something you have to really work at. alot of varations take into effect.. condition of yer rear suspension.. condition of front suspension.. stickyness of the tires.. hp. the way i do it is i take her up to about 4000 and rev a few times to build up boost then dump.. i get some tire spin but not enuff that i care since i stay in boost the rest of the way down the street errr i mean track
#15
Rotary Enthusiast
iTrader: (1)
Join Date: Aug 2001
Location: Atlanta.Georgia
Posts: 1,271
Likes: 0
Received 0 Likes
on
0 Posts
i have launched at the track with 205,40,17s i feather (kinda ride) the clutch to match the amount of gas and i run 2.0 60 ft all the time. now i got 215s time to try for a 1.9
#16
88 AE
Thread Starter
Join Date: Mar 2002
Location: N/A
Posts: 2,865
Likes: 0
Received 0 Likes
on
0 Posts
I tried to not feather the clutch and the best 60' I could pull was 2.6. This is on a city street with a gtech so the times might be alittle off. I just cant seem to find a good rpm to launch at. Damn I need an LSD and some better tires.
#17
Yar-Har-Har
Join Date: Sep 2002
Location: Nashville, 37217
Posts: 1,954
Likes: 0
Received 0 Likes
on
0 Posts
so say i have shitty tires and an old *** suspension...
i should rev to around 4 then dump or what???
i guess it all depends, im just looking for those that have bad suspension and not so great tires and see what works for them
i should rev to around 4 then dump or what???
i guess it all depends, im just looking for those that have bad suspension and not so great tires and see what works for them
#19
Do a barrel roll!
iTrader: (4)
I find the best method is to hold at ~4500rpm, and give the clutch a quick slip, then just mash the gas as soon as it catches. I sometimes get a little *chirp*, but usually thats about it. You dont want to spin the tires, and you dont want to bog down, you need to find the midpoint.
#20
Game of Death
Join Date: Apr 2002
Location: Chicago
Posts: 1,750
Likes: 0
Received 0 Likes
on
0 Posts
You totally want to spin the tires....well at least you have to on my car. I have crap tires on the wear bar. I generally launch at 3K. Hold the rev, dump the clutch, and steer. Oh yea, and then I usually shift at about 7K.
#21
PS- The best 60' time I pulled last year was a 2.29 on all-season tires. Should this be lower?
When my car goes back together and I get a set of drag radials on it Ill probably be launched at 5k and slipping the clutch a bit thru first gear. Then going WOT in second.
#22
Senior Member
Join Date: Jan 2003
Location: Tampa, Fl
Posts: 387
Likes: 0
Received 0 Likes
on
0 Posts
yeah....i have dump the clutch before 3800 (right around when the 5th and 6th port open) if not, i spin my tires too much
i try to get it as close to the opening RPM so that when my tires grab, the ports open and im into my power band
i try to get it as close to the opening RPM so that when my tires grab, the ports open and im into my power band
#23
Do a barrel roll!
iTrader: (4)
Originally posted by rx-7s rock
You totally want to spin the tires....well at least you have to on my car. I have crap tires on the wear bar. I generally launch at 3K. Hold the rev, dump the clutch, and steer. Oh yea, and then I usually shift at about 7K.
You totally want to spin the tires....well at least you have to on my car. I have crap tires on the wear bar. I generally launch at 3K. Hold the rev, dump the clutch, and steer. Oh yea, and then I usually shift at about 7K.
#24
Da Monee Pit
Join Date: Dec 2001
Location: Littlefield, Texas
Posts: 843
Likes: 0
Received 0 Likes
on
0 Posts
All depends on what comfortable for you and what kinda engine, clutch and tires you run. Stock everything i'd rap it to 4k and feather it out, as you let out on the clutch give it more gas to keep the revs up and about 10 feet or so off the light you should have the clutch fully engaged. Gotta do it quick or you'll burn up the clutch.
If you running slicks and a race clutch rev it to 7k and dump it and hope you don't drop a universal joint or twist the drive shaft.
Seen a guy at our strip with a rotary in a fiberglass bodied car that would rev it to 13k at launch and dumpd it. He was running a 5 speed manual. Sounded nasty. Home made manifold for the supercharger he was runnin. Thinking he was running 8's. This was back in 1988. His dad owns the local Mazda house.
If you running slicks and a race clutch rev it to 7k and dump it and hope you don't drop a universal joint or twist the drive shaft.
Seen a guy at our strip with a rotary in a fiberglass bodied car that would rev it to 13k at launch and dumpd it. He was running a 5 speed manual. Sounded nasty. Home made manifold for the supercharger he was runnin. Thinking he was running 8's. This was back in 1988. His dad owns the local Mazda house.
#25
I wish I was driving!
Feathering the clutch and using the brakes is one of the most efficient ways to alunch. This keeps your drivetrain preloaded (so it doesn;t receive shock from a clutch drop and break), and it also helps keep you at your torque peak.
Dumping the clutch is never a good idea.
This is one of the reasons they sell roll control. They call it roll control b/c it allows you to keep from rolling while you preload the suspension while staging.
(It also keeps you from rolling during burn-outs).
Dumping the clutch is never a good idea.
This is one of the reasons they sell roll control. They call it roll control b/c it allows you to keep from rolling while you preload the suspension while staging.
(It also keeps you from rolling during burn-outs).