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Old 08-20-2019, 11:55 AM   #61
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Old 08-20-2019, 12:03 PM   #62
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Default Re: Transmission related?

Post 60 is the only pass it made and seems "fixed". The rest have the same problem it had on page 1.


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Old 08-20-2019, 06:16 PM   #63
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Readers, please see post#19 and post#22 of this thread, to see the advice from some one that fundamentally knows absolutely nothing about the subject at hand and never will.
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Old 08-21-2019, 01:28 AM   #64
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Keep the wheel speed up!!! Haze the tires... Drive it like you stole it... If it's turning the tires, you know what to do, Mitch. You are not on a radial, drive it like it's a slick, because it is. Test with stiff and non stiff tires.



Only you will be able to make this happen. you are in the drivers seat.



I think, you are dead hooking, and the engine lugs, as it gets it gets on the tires. Wheel speed!!! Drive it!!!




Tighten your shocks up and drive it like a hard tail dragster. It may give you a different look at whats going on.
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Old 08-22-2019, 01:53 AM   #65
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I didn't get the criticism I expected.

Set the sissy sticks a lot higher!
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Old 08-22-2019, 07:07 AM   #66
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I didn't get the criticism I expected.

Set the sissy sticks a lot higher!
Lowering the sissy sticks fixed it......
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Old 08-22-2019, 08:03 AM   #67
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Lowering wheelie bars stopped the motor from shutting off on the launch? Wishful thinking.


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Old 08-22-2019, 05:12 PM   #68
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You do understand why moving the sissy bars down helps right? The sooner they hit the more it takes the hit off the tire. You can do the same with chassis adjustments and shock adjustments. A pic of where your bars are set and shock settings could help us help you. Is this a nos car or a n/a car? If it's a nos car you have to add more power of the hit or remove the hit on the tires with chassis and shock settings

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Old 08-22-2019, 05:16 PM   #69
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Your dead hooking the tire. Very very bad with big tire and power. The tires act like a bouncing ball.
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Old 08-22-2019, 07:21 PM   #70
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Quote:
Originally Posted by Hutch View Post
Lowering wheelie bars stopped the motor from shutting off on the launch? Wishful thinking.


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Your response baffles me???? I have had active pro stock guys tell me that smacking those big tires too hard will knock the wind right out of my engine.


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You do understand why moving the sissy bars down helps right? The sooner they hit the more it takes the hit off the tire. You can do the same with chassis adjustments and shock adjustments. A pic of where your bars are set and shock settings could help us help you. Is this a nos car or a n/a car? If it's a nos car you have to add more power of the hit or remove the hit on the tires with chassis and shock settings
Yep, lowering the bars kept the car from trying to put the rear wheels through the track surface. 2 clicks less compression was done as well at the same time. BTW, both bars were lowered 1/2", to 4.5" L, and 4.0" R. After reading the paint left by the bar wheels, the right bar is coming up 1/4" for tomorrows first pass.


It is an NA car, so I am hitting it with a tad over 1300hp where the converter flashes.


The car is behaving very well with the new 4-link setting, and I am pretty hopeful that we can run at any track now with small wheelie bar and shock adjustments.


Quote:
Originally Posted by Farthole View Post
Your dead hooking the tire. Very very bad with big tire and power. The tires act like a bouncing ball.
Agreed. I could not believe that theory when it was first suggested to me. A lot of others scoffed at it as well. I could have saved myself a bunch of time, and a fair amount of money by acting on that theory first.

I bought the car turn key, and it was running fine when I first got it, but it did noticeably pull the motor down without disrupting the launch. My guess is that as the engine started loosing a little bit of power as the runs kept piling up, it reached the point where traction overpowered the engine.

I hope to get 2-3 runs in this weekend before loading up for the YB Nats. Then we will see if I can figure out how to make the car leave right on my first ever radial prep surface.

Looking forward to it......
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Old 08-22-2019, 08:18 PM   #71
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A n/a car can make you what to hang yourself when this shit happens. I'm a nos guy and just add more power. Make very small adjustments from where it's at now and good luck. glade its going in the right direction.
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Old 08-22-2019, 09:01 PM   #72
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Pro stock guys sound like clutch guys. Here's the deal and listen to the car not the people around you.

If you bolted the car to the ground, put it on the limiter and let off the transbrake, would the car bog, quit, stumble? Hell no! It has a converter and should go right instantly to stall speed, end of story.

Your car hooks and quits. You found a way to make it not initially hook and half ass disguised your problem. If you think I'm out to lunch that's ok but I'm not saying anything that isn't happening.

Of all the things, is your battery mounted length wise and shorting on the hit? Seen that a few times.


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Old 08-22-2019, 09:34 PM   #73
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Default Re: Transmission related?

Two go-lithium batteries mounted sideways. I put them in the car before this problem showed up.


Even switched them out for the old, full size XS batteries for a couple of runs...…..problem was still there.

I have yet to reach where the car should be as far as 60' times, but 6 passes in, with 4 of them being 1.10

Who knows, maybe this problem will come back?
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Last edited by Mitch H; 08-22-2019 at 09:36 PM.
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Old 08-26-2019, 02:22 AM   #74
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Originally Posted by Mitch H View Post
Two go-lithium batteries mounted sideways. I put them in the car before this problem showed up.


Even switched them out for the old, full size XS batteries for a couple of runs.....problem was still there.

I have yet to reach where the car should be as far as 60' times, but 6 passes in, with 4 of them being 1.10

Who knows, maybe this problem will come back?



I think the combo has no problem with 1.0X 60s. I also think the chassis is ready to get you there, without spending anymore money.


Log books work well, before data loggers.
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Old 08-26-2019, 08:31 PM   #75
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I think the combo has no problem with 1.0X 60s. I also think the chassis is ready to get you there, without spending anymore money.


Log books work well, before data loggers.
We are running off a notebook for now.

Car is slowly moving in the right direction. I still need to squeeze 3-4 hundredths more out of the car to feel comfortable making the cut at Cecil this weekend.

Got a couple of suggestions from the trans and convertor builder that should help.

From the results we have been getting the last couple of weeks, it appears that my convertor is a little bit tight, but it is the only one I have for this car, and we are leaving tomorrow for Cecil.

At least the car goes down the track without looking stupid now. The bouncing issue has not shown itself at all for the last 6 passes.

We are going to have FUN at Cecil whether we made the field or not!
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