Launching your TY

[Rick_From_Mi]

Ok I was wondering what is the best way to go about launching your TY. Ive been reading that most of the time when people launch thier TY the tires break loose. Now I cant get mine to do that, but it still launches incredibally hard and fast. Now could the reason that the tires wil not break loose is cause of the new eaton posi rear end?


Thanks!!!

-Rick

 

[GM TURBO]

I think most of the people who are breaking the tires loose are Syclones. It tends to be a little harder in a Ty - but with enough boost off the line it can be done

Follow these steps if you haven't already.
1. Throw truck in nuetral.
2. Jam your foot on the brake pedal.
3. Rev a couple times - feel brake pedal drop down.
4. Keep your brake foot firmly planted.
5. Put truck in D - not OD.
6. Start to build boost.
7. If you start to creep forward see if you can jam the brakes further.
8. Let go of the brakes and hold on.

I don't launch with much more than 5# of boost - I really don't want to have anything let go under pressure. It is pretty hard on the driveline - but fun as hell. Some people can hold upto 15# of boost at the line. About the most I have held is 9-10 - which makes for a very fun launch.

Also, drop the

 

[Rick_From_Mi]

Ah so then have it in drive and not overdrive. I know that overdrive is like 4th gear. But can u explain the difference when launching from OD and D.


Thanks!!!!



-Rick

 

[smeagol]

You only have to rev the motor once.

You build stronger holding power due to increased vacuum to the brake booster, so rev it high once (like 4000) and let it decelerate, as the RPM's drop, press the pedal to the floor. You should only have to rev it up and set the brakes once, revving up and down 100 times won't have an effect.

 

[GM TURBO]

I rev mine twice 'cause it sounds cool. if you rev it 100 times the race is gonna be over

D has higher line pressure than OD - it is going to give you firmer shifts. Or that is the way I understand it.

 

[Rick_From_Mi]

NICE.. thanks for the info..



-Rick

 

[ttdolson]

Rick,
That Ty will definetly spinn the tires.
The new posi should help, it's the latest design,it's almost like having a spool.
If you ask me very,very nice, i may be persuaded into showing you how to launch that baby.
I sure hope you have enough miles on that new rear end before you launch hard.

 

[SYO237]

D is when you want to frag your tranny all over the road... OD is when you want to keep your truck on the road and out of the shop....


like said above, D has higher line pressure, firmer shifts and keeps the truck from going into 4th..

one method that has been used at the track.... start in D, then as you get close to the end of the track and you see your RPM limit, shift into OD through the traps.... easier on the truck as you slam on your brakes to make the first turn off.....


ive tried both... i hit the boost/rev limit in D and wont do it again...to scary of a feeling to have the truck completely lurch forward while your doing 80mph at the 1/8 mile mark thinking you just broke something major...

ive had no probs in OD on the street or track and getting great times... my stock 13.4 was done in OD.


however, while doing regular highway/city driving... at low speeds below 45mph, i drive in D..... keeps the converter from locking up and makes for an easier load on the tranny... once i get up to speed, i slide it into OD.



its all a personal preference... one person will tell you to stay in D...others will tell you to start in D and shift to OD... others will say stay in OD.


try both, use what works for you and your truck....

 

[RS25.com]

The only clarification I would add that makes launching easier for me (thanks to Will_In_Denver for this tip)

When you have your foot on the brake and you're trying to build vacuum, don't just rev up and down - rather rev to like 3k - 4k RPM, then snap your foot off the gas pedal. By suddenly closing the throttle plate you create a LOT more vacuum. Throttle plate closed + pistons moving fast and no air coming in = VACUUUUUM!

I use this technique and it usually only takes one or two revs to get the brake pedal all the way to the floor!

 

[Rick_From_Mi]

HEHEHEHE THOM I allready put over 800 miles on it And didnt even try to launch it until 700miles. Yes oh yes it is fun. And please please tell me how to launch that bad boy.. hehehe

 

[InvisiBill]

http://www.sportmachines.com/maintenance/race.html

 

[typhoon1588]

whenever i try, no matter how hard my foot is on the pedal, at around 3-4psi the brakes wont hold the truck. i am afraid of redighting at the track if the truck creeps over the line during staging. Any suggestions on what might be wrong/way to fix it?

 

[Twins]

I bought my truck, drove it home 35 miles, and did a launch.

Then another.

And then a whole bunch more showing everyone what it's like.

And somemore at the track.

I think it's the front(s) that are spinning.

I can't imagine owning one of these and not doing a launch.

It'd be like driving around with only 5 psi avail.

 

[myclone]

whenever i try, no matter how hard my foot is on the pedal, at around 3-4psi the brakes wont hold the truck. i am afraid of redighting at the track if the truck creeps over the line during staging. Any suggestions on what might be wrong/way to fix it?

Primary shoes on (4 of em total) the rear. Early s-10 ("big") wheel cyclinders, freshly turned drums, and lastly... the above mentioned rear shoes, as well as the front pads, need to be "soft". These are the cheapy chain store brands that dont have a "life time warranty" and create huge amounts of brake dust for you to clean off the wheels. :wink:

I can hold right at 15psi on the line with the above. 15+ it creeps. Spins all four (three?) for maybe ten feet at the track and it gets all kinda crossed up on the street. No biggie though as I think its fun and real men dont lift (scares the crap outta a noob syty passenger too :wink: ).