New best, more to be had
#3170872
08/27/23 05:04 PM
08/27/23 05:04 PM
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Frostbitefalls MN (Rocky&Bullw...
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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
Last edited by gregsdart; 08/27/23 05:06 PM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: New best, more to be had
[Re: tboomer]
#3170887
08/27/23 05:56 PM
08/27/23 05:56 PM
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Joined: Mar 2003
Posts: 6,334
Heaven
EvilB1Dart
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Posts: 6,334
Heaven
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Nice job, Greg! More in it. That 128 to the 1/8 is nice too!
"Any fool can know. The point is to understand"
- A. Einstein
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Re: New best, more to be had
[Re: hugo]
#3170960
08/28/23 05:51 AM
08/28/23 05:51 AM
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Joined: Jan 2003
Posts: 10,022
MN
JERICOGTX
I Live Here
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I Live Here
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Posts: 10,022
MN
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Nice numbers Greg! Glad it's coming around for you.
69 GTX
68 Road Runner
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Re: New best, more to be had
[Re: gregsdart]
#3170987
08/28/23 09:03 AM
08/28/23 09:03 AM
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Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
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Posts: 13,363
Marion, South Carolina [><]
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CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: New best, more to be had
[Re: gregsdart]
#3170992
08/28/23 09:07 AM
08/28/23 09:07 AM
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Frostbitefalls MN (Rocky&Bullw...
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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.
Last edited by gregsdart; 08/28/23 09:09 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: New best, more to be had
[Re: J_BODY]
#3171023
08/28/23 10:50 AM
08/28/23 10:50 AM
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Frostbitefalls MN (Rocky&Bullw...
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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?😁
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: New best, more to be had
[Re: moparacer]
#3171026
08/28/23 10:59 AM
08/28/23 10:59 AM
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Frostbitefalls MN (Rocky&Bullw...
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Oh ya get that shift issue fixed and its going to run 5.30 easy at 128 mph.  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.
Last edited by gregsdart; 08/28/23 11:01 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: New best, more to be had
[Re: gregsdart]
#3171039
08/28/23 11:34 AM
08/28/23 11:34 AM
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Joined: Mar 2003
Posts: 2,499
PA
moparacer
top fuel
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top fuel
Joined: Mar 2003
Posts: 2,499
PA
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Oh ya get that shift issue fixed and its going to run 5.30 easy at 128 mph. 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.
67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174
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