Moparts

New best, more to be had

Posted By: gregsdart

New best, more to be had - 08/27/23 09:04 PM

I couldn't get the one/two shift to shift on time, and hit the rev limiter in 1st gear for .4 seconds on every pass. Still, I am happy I got it down the track with a new best 60 ft of 1.224. But the best part was my best 1/8th mile speed of 128.87 mph yesterday. Today's ET was best at 8.60
The DA was 2166, with an 8 mph head wind

Attached picture IMG_20230827_155832221.jpg
Posted By: tboomer

Re: New best, more to be had - 08/27/23 09:34 PM

Way to go Greg! You deserve that after all of the hard work you did on your car! up
Posted By: EvilB1Dart

Re: New best, more to be had - 08/27/23 09:56 PM

Nice job, Greg! More in it. That 128 to the 1/8 is nice too!
Posted By: Rodenteliminator

Re: New best, more to be had - 08/27/23 11:37 PM

Now that is getting done! Good job! Doug
Posted By: slantzilla

Re: New best, more to be had - 08/28/23 01:55 AM

Congratulations Greg! beer
Posted By: pittsburghracer

Re: New best, more to be had - 08/28/23 02:08 AM




Great job Greg.
Posted By: hugo

Re: New best, more to be had - 08/28/23 03:29 AM

Great job!! What's your trap rpm's?
Posted By: JERICOGTX

Re: New best, more to be had - 08/28/23 09:51 AM

Nice numbers Greg! Glad it's coming around for you.
Posted By: 71Demon528

Re: New best, more to be had - 08/28/23 12:02 PM

Now that’s what I’m talkin about. That thing is nasty.
Posted By: HardcoreB

Re: New best, more to be had - 08/28/23 12:37 PM

Congrats Greg! It's spinning the tires with that MPH/ET. Between DA and a little more efficiency there's plenty left in it to get you kicked off the track! up
Posted By: gregsdart

Re: New best, more to be had - 08/28/23 12:57 PM

Originally Posted by hugo
Great job!! What's your trap rpm's?

Trap rpm is 7600.
Posted By: an8sec70cuda

Re: New best, more to be had - 08/28/23 01:03 PM

Very nice!
Posted By: gregsdart

Re: New best, more to be had - 08/28/23 01:07 PM

Thanks guys for the compliments. I still have to figure out why the 1/2 shift doesn't happen til 7800 rpm. As I said earlier, it was against the rev limiter at 8,000 rpm on the 1/2 shift. It may be I have the window too narrow for shifts. I have the circuits setup to only function while a throttle stop setting provides a path to ground for the air shifter. I will check and see if the window/ stop setting is coming in too late . I needed to set it up this way to keep the trans from shifting to safe neutral, since my shift pattern is now PR123N. I may still go to a separate rpm switch if there is one that allows different settings for each shift. For the life of me I couldn't get the MSD7531 to work like the book says it should.
Posted By: J_BODY

Re: New best, more to be had - 08/28/23 01:25 PM

Both my Digital Delay shift timer and my old ACD you could set different shift rpms.

Nice passes! We’ve only been waiting 20 years for you to do that! Going to get out in some more favorable fall air soon?
Posted By: moparacer

Re: New best, more to be had - 08/28/23 02:10 PM

Oh ya get that shift issue fixed and its going to run 5.30 easy at 128 mph. beer
Posted By: gregsdart

Re: New best, more to be had - 08/28/23 02:50 PM

Originally Posted by J_BODY
Both my Digital Delay shift timer and my old ACD you could set different shift rpms.

Nice passes! We’ve only been waiting 20 years for you to do that! Going to get out in some more favorable fall air soon?

Twenty years? Am I really that old?😁
Posted By: gregsdart

Re: New best, more to be had - 08/28/23 02:59 PM

Originally Posted by moparacer
Oh ya get that shift issue fixed and its going to run 5.30 easy at 128 mph. beer

That would be great to see 5.30s in the 1/8rh. Best so far is 5.47. The 60 fts are a bit slow I suspect as I run a throttle controller, not a stop
For launch rpm. I leave at about 1/8th throttle at 4,000 rpm, and it takes about .2 seconds for full throttle. I figured with only a 10.5x33 tire I would hit it soft to start. Still, the 1.224 is the fastest it has ever gone in the 60 ft.
The 30 inch ladderbar are at 120 percent of rise by my calculations. Rear shocks are Afco big guns, set at 12 from full stiff on separation, 6 from full stiff on compression. The feeling I had before was tire spin when I tried to run the ladderbar in the bottom hole . The car would pitch rotate too fast and hit the wheeliebar unloading the rear tires. I don't feel that now.
Posted By: moparacer

Re: New best, more to be had - 08/28/23 03:34 PM

Originally Posted by gregsdart
Originally Posted by moparacer
Oh ya get that shift issue fixed and its going to run 5.30 easy at 128 mph. beer

That would be great to see 5.30s in the 1/8rh. Best so far is 5.47. The 60 fts are a bit slow I suspect as I run a throttle controller, not a stop
For launch rpm. I leave at about 1/8th throttle at 4,000 rpm, and it takes about .2 seconds for full throttle. I figured with only a 10.5x33 tire I would hit it soft to start. Still, the 1.224 is the fastest it has ever gone in the 60 ft.
The 30 inch ladderbar are at 120 percent of rise by my calculations. Rear shocks are Afco big guns, set at 12 from full stiff on separation, 6 from full stiff on compression. The feeling I had before was tire spin when I tried to run the ladderbar in the bottom hole . The car would pitch rotate too fast and hit the wheeliebar unloading the rear tires. I don't feel that now.



I have went 5.47 @ only 125 mph with a 1.18 60 ft. So with a better DA, and suspension tweaks to better the 60 ft I bet it clips the high 30s at least.

The big issue you have is the low starting line ratio with the 3 speed and ladder bars killing the tire if you try to leave harder.
Posted By: TheOtherDodge

Re: New best, more to be had - 08/29/23 01:41 PM

Congrats Greg!
© 2024 Moparts Forums