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Re: TNT on Saturday...anyone care to guess what it runs? [Re: pittsburghracer] #1941584
10/30/15 11:24 AM
10/30/15 11:24 AM
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Western Md.
skicker Offline OP
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My comparison in the LD versus the M-1 is that when initially built the M-1 was a dog in the 60 ft and pulled very hard in the higher rpms thru all gears.
Now with the LD it seems to 60' decent and leaves a lot harder but it is noticeably down on power in the higher RPM's.
I guess its not really fair to make that side by side comparison because when the intake was changed is when the cam was advanced from 112 to 103. shruggy
Ultimately between both intakes and the differences of where they run the ET between the two may be very close. 60 foot-1/8th and mph would likely be different.
I would like to see it hit the 11.90's but I'm optimistic... whistling
Temps are supposed to be in the 50's so I may get a little help... up

As for the cam I have owned it for more than 22 years and can verify that it was bought around 1978 by a previous owner of the engine that was in the car I bought in 1993. I hadn't used it since 94 and the previous owner hardly drove the car after 1986. From 78 to about 84 it did weekend street racing running a best of 11.9x with a 5.13 gear in a 73 Dart Sport in about 1983. When I talked to the previous owner he said it never ran good on top end...when I got it I thought it was lazy on top also. Installed the cam in this motor and it pulled hard on the top and was lazy down low... shruggy That's when the cam degree was checked and set at 103 per Jim. twocents


...FAFO...
Re: TNT on Saturday...anyone care to guess what it runs? [Re: skicker] #1941627
10/30/15 12:59 PM
10/30/15 12:59 PM
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off the grid
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High 11.70 to low 11.80's in decent air.

Kinda puzzled by the carb jetting. Seems a little rich. Is that what it likes?


Yeah, it's got a smallblock.
Re: TNT on Saturday...anyone care to guess what it runs? [Re: 340B5] #1941691
10/30/15 04:19 PM
10/30/15 04:19 PM
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I CANT WAIT FOR THE VIDIO!!!!

Re: TNT on Saturday...anyone care to guess what it runs? [Re: skicker] #1941758
10/30/15 07:01 PM
10/30/15 07:01 PM
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madscientist Offline
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Originally Posted By skicker
My comparison in the LD versus the M-1 is that when initially built the M-1 was a dog in the 60 ft and pulled very hard in the higher rpms thru all gears.
Now with the LD it seems to 60' decent and leaves a lot harder but it is noticeably down on power in the higher RPM's.
I guess its not really fair to make that side by side comparison because when the intake was changed is when the cam was advanced from 112 to 103. shruggy
Ultimately between both intakes and the differences of where they run the ET between the two may be very close. 60 foot-1/8th and mph would likely be different.
I would like to see it hit the 11.90's but I'm optimistic... whistling
Temps are supposed to be in the 50's so I may get a little help... up

As for the cam I have owned it for more than 22 years and can verify that it was bought around 1978 by a previous owner of the engine that was in the car I bought in 1993. I hadn't used it since 94 and the previous owner hardly drove the car after 1986. From 78 to about 84 it did weekend street racing running a best of 11.9x with a 5.13 gear in a 73 Dart Sport in about 1983. When I talked to the previous owner he said it never ran good on top end...when I got it I thought it was lazy on top also. Installed the cam in this motor and it pulled hard on the top and was lazy down low... shruggy That's when the cam degree was checked and set at 103 per Jim. twocents


Any chance after all these years of having the cam card??

I'm curious because you said the cam was installed at 112 and now it's at 103. That seems like a big spread, unless it's has a 107-108 Lobe Seperation Angle. If it's ground on a 108 and was installed at 112 that is 48 of retard, plus the 2-4 degrees of retard you get from a timing chain. It's possible that thing was running at 114-116!!!! Holy Crap.

I only ask because in years of dealing with Jim, his standard is almost always installing the cam 2 degrees ahead of LSA. Not always, but mostly. Comp usually goes in 4 ahead, Cam Motion is usually 4 ahead and Mike Jones is usually 3-4 ahead. Kinda a rule of thumb thing for the cams I normally run. In fact, all my old UltraDyne stuff went in 6 degrees ahead. Just how Harold did it. I'm not sure how Bullet is doing it now. So when you go from 112 to 103 that is a HUGE move. That's why I asked if you knew what the LSA actually is.

I like crunching numbers when I can, and yours in particular are interesting. Hope you don't mind all the questions.


Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Re: TNT on Saturday...anyone care to guess what it runs? [Re: pittsburghracer] #1941759
10/30/15 07:03 PM
10/30/15 07:03 PM
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Originally Posted By pittsburghracer
An old post on some LD340 testing I did. Keep in mind a STOCK small block Edelbrock head petters out at 243 CFM on a certified bench.



https://board.moparts.org/ubbthreads/ubbthreads.php/ubb/showflat/Number/7118476/site_id/1


For some reason I can't open this thread. Possibly because my computer is J-U-N-K. Can you post the date and maybe I can find it that way.


Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Re: TNT on Saturday...anyone care to guess what it runs? [Re: madscientist] #1941776
10/30/15 07:49 PM
10/30/15 07:49 PM
Joined: Jun 2005
Posts: 5,102
Western Md.
skicker Offline OP
"The Champ"
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Cam card is long gone. IIRC Jim thought it may have been ground on a 108 since it was as old as it was. Initially when I talked to him about this he wanted to go at 105. He is one of the guys that said this cam was too big with the gear and converter I was running.
Once he thought about the cam, gear and converter he said to set it at 103 to help it out on the bottom. I had a post on here sometime early in the spring and was discussing what changes to make with the existing parts I had and not buying anything new.
That was when I was running 3.23's. Most here wanted to add gear and then Dad decided he wanted to too.
Ultimately it is what it is now...it's going to run whatever it runs. I am almost positive the first package at 112 and the M-1 would be faster with the 4.56's but I'm not interested in pulling it down to change everything for one trip to the track. It's loaded in the trailer waiting to leave in the am. It's been referred to previously as a show poodle...so be it.
Maybe next year Ill take it down with the 3.23's and see if it will run high 12's...that's all I was ever shooting for... twocents
As for the jet it is fat now...I've put about 6 test hits on it and it likes whats in it much better than the 70-75 that was in it all summer with 3.23's. I'm taking my jets and may pop 75-80 in to try...


...FAFO...
Re: TNT on Saturday...anyone care to guess what it runs? [Re: 340B5] #1941806
10/30/15 09:15 PM
10/30/15 09:15 PM
Joined: Feb 2005
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Prospect, PA
BSB67 Offline
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Originally Posted By 340B5

Kinda puzzled by the carb jetting. Seems a little rich. Is that what it likes?


I was thinking the same thing

Re: TNT on Saturday...anyone care to guess what it runs? [Re: BSB67] #1942593
10/31/15 11:33 PM
10/31/15 11:33 PM
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WELLLL? ITS SAT NIGHT.CAMON THE SUSPENSE IS KILLIN ME. grin

Re: TNT on Saturday...anyone care to guess what it runs? [Re: bonefish] #1942946
11/01/15 01:30 PM
11/01/15 01:30 PM
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shock whistling cool shruggy

Re: TNT on Saturday...anyone care to guess what it runs? [Re: bonefish] #1943192
11/01/15 08:28 PM
11/01/15 08:28 PM
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Baltimore/Denver
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With you driving it... 12.60s

Maybe slower. laugh

Re: TNT on Saturday...anyone care to guess what it runs? [Re: 64Post] #1943199
11/01/15 08:42 PM
11/01/15 08:42 PM
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PA.
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He must have towed to Australia to test.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: TNT on Saturday...anyone care to guess what it runs? [Re: skicker] #1943279
11/01/15 10:36 PM
11/01/15 10:36 PM
Joined: Oct 2005
Posts: 902
S.E. Minnesota
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popcorn

Re: TNT on Saturday...anyone care to guess what it runs? [Re: gtsdude] #1943290
11/01/15 10:50 PM
11/01/15 10:50 PM
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State of confusion
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Hope everything`s cool...........I remember when some of you were waiting for my results while "ASSuming S.W.A.T. got me. laugh2 Curious about the results myself.......


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: TNT on Saturday...anyone care to guess what it runs? [Re: bonefish] #1943360
11/02/15 12:00 AM
11/02/15 12:00 AM
Joined: Jun 2005
Posts: 5,102
Western Md.
skicker Offline OP
"The Champ"
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Originally Posted By bonefish
shock whistling cool shruggy


Sorry guys...got back a little late and haven't had a chance to post.
I managed to get 6 passes in before I left.

1st pass was with everything posted above and netted a

1.75 60 foot
7.829 1/8th
12.323 at 108.17 mph

2nd pass I put a borrowed 850 on and the car slowed to a
1.816 60 foot
7.907 1/8th
12.403 at 109.16 mph

3rd pass I put my back-up 750 on that I have never been able to get a hesitation out of at the hit...and yes it stumbled netting a

1.888 60 foot
8.068 1/8th
12.590 at 108.73

Throw the 4th pass out as the loose nut behind the wheel missed the 2-3 shift with the factory column shift.. whistling

5th pass I had the first carb back on with the jets changed to 73 primary and 78 secondary. No other changes...

1.754 60 foot
7.867 1/8th
12.354 at 109.13 mph

6th pass was no mechanical changes from above but did try to raise the shift points...I know it stuttered on the 2-3 shift...

1.799 60 foot
7.856 1/8th
12.350 at 109.12

I've made 6 passes in 1985...3 in 1988...1 in June of 2014 and the 6 I made yesterday.

Tach is almost 1500 rpm off of what the ignition box says (when the MSD rev limiter was set at 6500 tach shows 8,000 before stuttering...this was raised to 7200 before going to the track not knowing what I might need in high gear at the stripe)

I can't swear that I made any two given shifts at the same point but on every pass except the last one I tried to shift around 6500.

I look at the different #'s and just runaway

One thing I did notice was the 2-3 shift is a couple cars or so before the 1/8th mile and once I'm in high gear it definitely doesn't pull as hard as it used to before the cam and intake swap.

Depending on the weather I'd like to go back down next w/e with the 3.23's in the way the car is normally driven. I'm curious as to how it runs without the gear and so much dead time in high gear.
There's no one local running similar times to compare sheets to so I'm not sure if it is good anywhere or just average everywhere...

Appreciate any info you have to offer...


...FAFO...
Re: TNT on Saturday...anyone care to guess what it runs? [Re: madscientist] #1943379
11/02/15 12:31 AM
11/02/15 12:31 AM
Joined: Feb 2005
Posts: 20,164
PA.
pittsburghracer Offline
"Little"John
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Originally Posted By madscientist
Originally Posted By pittsburghracer
An old post on some LD340 testing I did. Keep in mind a STOCK small block Edelbrock head petters out at 243 CFM on a certified bench.



https://board.moparts.org/ubbthreads/ubbthreads.php/ubb/showflat/Number/7118476/site_id/1


For some reason I can't open this thread. Possibly because my computer is J-U-N-K. Can you post the date and maybe I can find it that way.




3-14-12


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: TNT on Saturday...anyone care to guess what it runs? [Re: skicker] #1943415
11/02/15 01:19 AM
11/02/15 01:19 AM
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Prospect, PA
BSB67 Offline
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Did you go down 7 jet sizes front and back? Maybe try something in the middle. Possibly a fuel delivery problem? Seems to run pretty decent though.

Re: TNT on Saturday...anyone care to guess what it runs? [Re: pittsburghracer] #1943463
11/02/15 03:37 AM
11/02/15 03:37 AM
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madscientist Offline
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Originally Posted By pittsburghracer
Originally Posted By madscientist
Originally Posted By pittsburghracer
An old post on some LD340 testing I did. Keep in mind a STOCK small block Edelbrock head petters out at 243 CFM on a certified bench.



https://board.moparts.org/ubbthreads/ubbthreads.php/ubb/showflat/Number/7118476/site_id/1


For some reason I can't open this thread. Possibly because my computer is J-U-N-K. Can you post the date and maybe I can find it that way.




3-14-12



THanks. I'll go back and find it.


Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Re: TNT on Saturday...anyone care to guess what it runs? [Re: madscientist] #1943616
11/02/15 01:27 PM
11/02/15 01:27 PM
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guess I was pretty far off blushcant help but think there is a 11 in there somewhere. up

Re: TNT on Saturday...anyone care to guess what it runs? [Re: bonefish] #1943643
11/02/15 02:10 PM
11/02/15 02:10 PM
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pittsburghracer Offline
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I hate to come out and say this but something is terribly wrong with this combo and the convertor is probably a BIG part of it. You should be flying at that track especially this time of year. I sold my first Duster to a Friend around 35 years ago (3100 plus pounds) and he was into working on dirt track cars and wanted to try drag racing. He wanted a mild combo to make some passes so we took a stock 340 block with stock 10.5-1 cast pistons, stock rods, and crank, added a 484 purple shaft hrdralic cam, portasonic intake, 340 heads with a clean-up polish and 2.02 vales and valve job. He then bought a new 750 carb and installed it out of the box. The car had super stock leaf springs, 4.56 gears, and a 4200 stall turbo Action convertor. In the heat of Summer in PA at the old Keystone Raceway Park he ran a 12.20 on his second pass in the car. I would take a real good look at your 3500 stall convertor and possibly try a new higher stall one.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: TNT on Saturday...anyone care to guess what it runs? [Re: pittsburghracer] #1943666
11/02/15 02:36 PM
11/02/15 02:36 PM
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Portage,michigan
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Originally Posted By pittsburghracer
I hate to come out and say this but something is terribly wrong with this combo and the convertor is probably a BIG part of it. You should be flying at that track especially this time of year. I sold my first Duster to a Friend around 35 years ago (3100 plus pounds) and he was into working on dirt track cars and wanted to try drag racing. He wanted a mild combo to make some passes so we took a stock 340 block with stock 10.5-1 cast pistons, stock rods, and crank, added a 484 purple shaft hrdralic cam, portasonic intake, 340 heads with a clean-up polish and 2.02 vales and valve job. He then bought a new 750 carb and installed it out of the box. The car had super stock leaf springs, 4.56 gears, and a 4200 stall turbo Action convertor. In the heat of Summer in PA at the old Keystone Raceway Park he ran a 12.20 on his second pass in the car. I would take a real good look at your 3500 stall convertor and possibly try a new higher stall one.



I agree. The Mph is enough to maybe sneak into the 11's or very low 12's.
That combo should run better than my little 318 times in my signature with iron heads , hydraulic cam and more weight, or at least as good.


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

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