Spinning tires at the launch, take two...

[Triton II]

Re: Spinning tires at the launch, take two...

Hmmm, thanks for the pics it makes it easier to see that if you move the winchpost forward by a couple of inches you'll bring the boat's transom forward to the ends of the bunks. This may be enough to get you some additional tongue weight which will definitely improve tyre traction on slick ramps. It doesn't look like you'll need to muck around with the bunks too much, should be a simple job - after loosening those U-Bolt nuts and slide the post as far forward as you can, retighen the nuts and winch forward. I'd weigh the tongue before and after the winch post (and boat!) move to confirm you have enough tongue weight. Good luck!

TII

 

[Mi duckdown]

Re: Spinning tires at the launch, take two...

Fishrdan. I agree, about the transom. but I don't see how the bow mount can be moved forward. The Pics don't show how long the bow stop is.???

 

[Mi duckdown]

Re: Spinning tires at the launch, take two...

Tongue weight is everything.

 

[Mi duckdown]

Re: Spinning tires at the launch, take two...

Hrdwrking.
You Need To Show Pics, Of your Truck and trailer hooked up, on flat ground. to see what's going ON.

 

[Jetwash]

Re: Spinning tires at the launch, take two...

Hopefully the last two pictures mean I have room to move the boat forward...I hope its enough...The first pic, I am not sure I want to mess with moving the axles...That looks like it would suck, and I'm not sure what to do with the fenders...

Glad I saw the photos.

Your bunks are too short as noted above.
I doubt the space you have at the frame junction will cover your bunk shortage. Measure twice.

I think your best fix is to remove the winch post and weld the base to a larger base and move is forward above the union of the frame. You will need a plate on the bottom as well since the bolts will on the outside of the frame, similar to the set up you have now. Down side is all the extra paint and prep.

Otherwise, you need to get new longer bunks or design an extension with a metal triangle support bracket under the board extension. Sort of like bolting a triangle shape shelving bracket to the wall for books. Youll just bolt the triangle bracket to original metal support under the bunk. More paint and prep. Nice boat and trailer. Its well worth the investment. The framework of the boat is the transom, not 4 inches in front of it.

 

[haulnazz15]

Re: Spinning tires at the launch, take two...

So what kinda vehicle goes slower in 2nd gear versus 1st gear?

Every vehicle ever made (unless there's some vehicle out there that has a 2nd gear taller than 1st gear). We are talking about acceleration from a stop, not top speed.

 

[jeeperman]

Re: Spinning tires at the launch, take two...

Every vehicle ever made (unless there's some vehicle out there that has a 2nd gear taller than 1st gear). We are talking about acceleration from a stop, not top speed.

First gear is always the lowest gear which equates to the lowest speed given the same engine rpm.
Second gear is always a "taller" (closer to 1:1) gear then first gear and thus the vehicle will go faster in second versus first with the same engine rpm.

 

[haulnazz15]

Re: Spinning tires at the launch, take two...

Ughh, you are missing the point. Let's have a race: same vehicle side by side, one starts in first gear, the other starts in second gear. Who accelerates quicker and is more likely to have wheel spin off the line? That's right, the guy who starts in 1st gear. You are thinking about things in terms of speed @ given rpm instead of acceleration per unit time. Hence, the guy trying to pull a trailer out of the water in second gear is going to accelerate more slowly than the guy in 1st. There will be less force being multiplied by 2nd gear than by 1st which will reduce the likelyhood of wheelspin. Physics/Mechanical Engineering lesson completed.

 

[oldjeep]

Re: Spinning tires at the launch, take two...

First gear is always the lowest gear which equates to the lowest speed given the same engine rpm.
Second gear is always a "taller" (closer to 1:1) gear then first gear and thus the vehicle will go faster in second versus first with the same engine rpm.

Yes, but what he is saying is that you are less likely to spin in 2nd gear from a dead stop than you are in 1st gear - mostly because you are able to apply a lot less torque in a higher gear..

 

[jeeperman]

Re: Spinning tires at the launch, take two...

Ughh, you are missing the point. Let's have a race: same vehicle side by side, one starts in first gear, the other starts in second gear. Who accelerates quicker and is more likely to have wheel spin off the line? That's right, the guy who starts in 1st gear. You are thinking about things in terms of speed @ given rpm instead of acceleration per unit time. Hence, the guy trying to pull a trailer out of the water in second gear is going to accelerate more slowly than the guy in 1st. There will be less force being multiplied by 2nd gear than by 1st which will reduce the likelyhood of wheelspin. Physics/Mechanical Engineering lesson completed.

Your assuming that the given engine has the hp and torgue to do so without falling on it's face.
And so with enough hp and torque, it would be even better to start off in the highest gear possible.
Such as a Top Fuel Dragster does/use to with direct drive.

 

[haulnazz15]

Re: Spinning tires at the launch, take two...

Your assuming that the given engine has the hp and torgue to do so without falling on it's face.
And so with enough hp and torque, it would be even better to start off in the highest gear possible.
Such as a Top Fuel Dragster does/use to with direct drive.

Wow, you're likening a dragster with pulling a boat up a slippery ramp? We're talking a truck with an auto tranny here, it won't be "falling on it's face" because the torque converter won't be locked up. Let it go, you're over-thinking this.

 

[cr295]

Re: Spinning tires at the launch, take two...

Before you do anything. Have someone (or even 2 people) stand on the tongue of the trailer and (slowly pull out). If your scared to do that put two people in the bow of the boat or the back of the bed when you pull out. That should let you know if moving the winch post forward will help. Dependiing on the dynamics of the ramp (angle) and trailer (tongue weight, length of tongue, loading, balance, etc.) you could actually have upward pressure on the trailer tongue when pulling out.

Someones never had a japanese car.......

(In 2 it will start in 2. In 1, 3,D it will start in 1. We may not have a disagreement in which case disregard this).

Did not know that! I thought with auto tranny they all started in the lowest gear available but just wouldn't climb above what ever gear you selected? The only foreign car I had was a manual so I never would of guessed that. Good info, thanks!

 

[hrdwrkingacguy]

Re: Spinning tires at the launch, take two...

Fight, fight, fight, "Jerry, Jerry, Jerry"...lol

I guess I forgot to mention that(Keep in mind my GF doesn't drive my truck well and I can't be in two places at once) I have stood on the back bumper of my truck with my 275# to get the boat out of the water...

 

[fishrdan]

Re: Spinning tires at the launch, take two...

I guess I forgot to mention that...................... my GF doesn't drive my truck well...........................

Well,,, (drumming fingers on desk....) there's your problem! could just be driver error

As said earlier, have her apply the brakes and slowly accelerate until the rig starts to move, then let up on the brake slowly to maintain momentum.