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Re: what converter. 408
[Re: Sport440]
#1610337
04/21/14 08:54 PM
04/21/14 08:54 PM
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Joined: May 2013
Posts: 46
North
Dodgenu
OP
member
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OP
member
Joined: May 2013
Posts: 46
North
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Quote:
Track only 5500 to 6200.
The motor made max torque at 5600 so I figure stall should be some where between 5500 to 5800, But whos converter are you running?
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Re: what converter. 408
[Re: Dodgenu]
#1610338
04/21/14 09:03 PM
04/21/14 09:03 PM
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Joined: Oct 2009
Posts: 1,267
North, Alabama
D-50
pro stock
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pro stock
Joined: Oct 2009
Posts: 1,267
North, Alabama
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Call Kenny Ford at PTC. He is also a mopar guy. I have a pretty good 60 ft. at 2950 lbs with his 8 in. convertor with a pump gas small block NA. Almost the same weight as yours. SEE Below.
Last edited by D-50; 04/21/14 09:21 PM.
1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
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Re: what converter. 408
[Re: Dodgenu]
#1610339
04/21/14 09:11 PM
04/21/14 09:11 PM
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Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Quote:
Quote:
Track only 5500 to 6200.
The motor made max torque at 5600 so I figure stall should be some where between 5500 to 5800, But whos converter are you running?
My first numbers were approximate based on your first post of info..
With this new info, that tightens things up abit. I agree with your 5500 to 5800. 5700 to 6000 should be the max window IMO
I run a Dynamic, but with the stall that you need Id go ATI Lots of other good ones though.
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Re: what converter. 408
[Re: Sport440]
#1610340
04/21/14 09:26 PM
04/21/14 09:26 PM
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Joined: Feb 2005
Posts: 20,160
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,160
PA.
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Don't even think about anything under a 5200 stall. Matts 360 picked up .50 in ET going from a 4000 to a 5200 and my 408 stalls at 5200 and is begging for more.  And we only shift at 6400rpm
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
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Re: what converter. 408
[Re: 79410aspenrt]
#1610342
04/21/14 10:03 PM
04/21/14 10:03 PM
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Joined: Jan 2003
Posts: 11,709
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,709
Portage,michigan
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Kinda surprised it made peak torque that high, as assuming at only 12 to 1 compression I am guessing the cam is likely not much bigger than 270 ish at 50.
What heads and what cam if you don't mind posting that stuff.
My old 422 as an example ran a 273@ 50 roller and was 13.3 to 1 and 60 footed at 3350 on leafs in my signature. Convertor flashed at 5400 and shifted at 7000.
5800-6000 seems like a TON of convertor to me with a 4 inch arm. :think Unless you have really big heads.
Last edited by B3422W5; 04/21/14 10:04 PM.
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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Re: what converter. 408
[Re: B3422W5]
#1610345
04/22/14 01:42 PM
04/22/14 01:42 PM
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Joined: May 2013
Posts: 46
North
Dodgenu
OP
member
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OP
member
Joined: May 2013
Posts: 46
North
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Quote:
Kinda surprised it made peak torque that high, as assuming at only 12 to 1 compression I am guessing the cam is likely not much bigger than 270 ish at 50.
What heads and what cam if you don't mind posting that stuff.
The heads are edelbrocks that flow 290 @ .600 lift. The cam is an Ultradyne/Bullet NF, that is 272/280 duration at .050 635 lift solid flat tappet.
Thanks everyone for the suggestions. I will make some calls tomorrow.
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Re: what converter. 408
[Re: Dodgenu]
#1610346
04/22/14 01:52 PM
04/22/14 01:52 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Track only 5500 to 6200.
The motor made max torque at 5600 so I figure stall should be some where between 5500 to 5800, But whos converter are you running?
Based on this.... and assuming your using a 904 or
a 727 I would run a 5800 stall... if you are gonna
run a glide it would be a bit higher
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Re: what converter. 408
[Re: MR_P_BODY]
#1610347
04/22/14 05:03 PM
04/22/14 05:03 PM
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Joined: Jan 2003
Posts: 9,872
Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,872
Weddington, N.C.
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I've been PM'ing back & forth with John (Pittsburgracer) and he's been helping me out a ton helping me figure out my 60' and my stall options  I've always been primarily a stick racer for 30+ years so I've been trying to better understand the effect on stall and how you "target" your stall RPM to match the torque peak when you put the motor under load...and how it all relates to the Hook and weight you have to work with. It wasn't making sense to me why you would target your stall at 5300 RPM if your torque peak occurs between 4400 and 4800 (like a typical 12:1 408 with smallish heads and a 270-ish at .050 Flat tappet). but it's I suppose it's just like a clutch in that you're really targeting the RPM the load is going to try to pull the motor down to once it flashes to meet the load. I think I "get it" going dow nthe track it's just the getting off the line I'm vexed with....especially since I'm not trying to shock the tires very hard since I already have good initial hook for hte first 10-15 feet, my issure is I need to get to the fat part of the curve at that 10' mark and not further down the track like I have now. I'm not too far off, just far enough to be aggravated by it  I'm debating whether to loosen my 4000-4200 stall 9 1/2" (~$300) to 4800 (about the max I would dare flash the Rocky on the line. That would also help my issue with the vert pulling through the beams (overcoming the brakes) because a looser stall would be making less torque at the 3000-3200 2-Step setting. The other option is a new Ultimate 8" on the tighter side (4800)...but that might not be in the budget right now....maybe I can pick up a good 8" core and Lenny can rebuild it for a little less all-in cost than an "all-new" unit. maybe somebody can chime in about this. The "beauty of astroker is the torque "peak" tends to be broader and flatter than a shorter stroke motor of the same output. I would think that with a broader "sweet spot" (not much torque drop off on either side of the peak) it wouldn't necessarily be so critical to get the stall "dead on" the peak, you would have a bigger "target zone"? What am I not getting? Thanks BTW, not trying to hack, my motor is very similar so I think it's all related... 
Last edited by Streetwize; 04/22/14 06:04 PM.
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Re: what converter. 408
[Re: Streetwize]
#1610348
04/23/14 01:06 AM
04/23/14 01:06 AM
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Joined: Jan 2003
Posts: 11,709
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,709
Portage,michigan
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Max torque at 5600 seems a fair bit high to me with Eddie heads and 4 inch crank, in fact about 400-500 rpm higher than I would suspect, at least. I dont care what that dyno said, it isn't right.
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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Re: what converter. 408
[Re: Dodgenu]
#1610349
04/23/14 01:43 AM
04/23/14 01:43 AM
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Joined: Jul 2008
Posts: 361
Canada
onig
enthusiast
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enthusiast
Joined: Jul 2008
Posts: 361
Canada
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Go to the link below. MSHRED is selling a high quality converter that looks to be what you are looking for. Re: 8" A1 race converter for 904 https://board.moparts.org/ubbthreads/show...rue#Post8102908Quote:
A1 8" race converter for 904 for sale!
Went to 5500 rpm off the brake behind my small block. Used for one season only, regular fluid changes to keep everything clean, excellent condition. Only selling because I am going to a nitrous converter
$800
69 Dart
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Re: what converter. 408
[Re: Dodgenu]
#1610351
04/27/14 07:28 AM
04/27/14 07:28 AM
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Joined: Jan 2009
Posts: 1,044
Victoria, Australia
Ian
super stock
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super stock
Joined: Jan 2009
Posts: 1,044
Victoria, Australia
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Quote:
I called ATI and they suggested an MRT treemaster 8 inch 5700 stall, so I ordered it and should have it by the end of next week.
I'll keep ya posted on the results.
any updates mate 
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Re: what converter. 408
[Re: Dodgenu]
#1610356
05/05/14 09:25 PM
05/05/14 09:25 PM
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Joined: Jan 2003
Posts: 11,709
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,709
Portage,michigan
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Fantastic job  That is the best running Eddie head motor I have ever seen or even heard about Only 12 to 1 and 3000 pounds race weight that is flat out hauling the mail. Runs as good or better than most well sorted out Indy headed small block strokers.... Extremely impressive. What body is the motor in, and who ported the heads and did the valve job?. What intake and headers?
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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Re: what converter. 408
[Re: Dodgenu]
#1610357
05/05/14 09:35 PM
05/05/14 09:35 PM
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Joined: Oct 2009
Posts: 1,267
North, Alabama
D-50
pro stock
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pro stock
Joined: Oct 2009
Posts: 1,267
North, Alabama
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Quote:
I took my car to the Friday night test and tune race. The first pass I took an easy hit foot braking and ran 10.54 @ 90 mph lifting at about 900 foot . The second pass I left at 3000 on the T brake and my car really left hard, I still only shifted both gears at 6000 rpm and I lifted at about 1100 feet and I ran 9.91 @ 124. At half track I went 6.18 @ 111 with a 1.29 60 foot.. When I was driving up to the time slip booth I saw the track manager standing there and I knew I had ran in the 9s, I don't have a license for 9s nor is my car s cage certified so they told me to slow it down or go home so I went home.I feel I have a mid 9 sec pass( 9.50s-9.60s) in the car.I have now made an appoiment to get a physical and then get the car certed and make some license passes.
By your 6.18 1/8 et. on Wallace calculators said you would run 9.79 1/4 and your 1/8 mph says 9.70 et.
1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
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Re: what converter. 408
[Re: D-50]
#1610358
05/05/14 09:50 PM
05/05/14 09:50 PM
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Joined: Jan 2003
Posts: 11,709
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,709
Portage,michigan
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Quote:
Quote:
I took my car to the Friday night test and tune race. The first pass I took an easy hit foot braking and ran 10.54 @ 90 mph lifting at about 900 foot . The second pass I left at 3000 on the T brake and my car really left hard, I still only shifted both gears at 6000 rpm and I lifted at about 1100 feet and I ran 9.91 @ 124. At half track I went 6.18 @ 111 with a 1.29 60 foot.. When I was driving up to the time slip booth I saw the track manager standing there and I knew I had ran in the 9s, I don't have a license for 9s nor is my car s cage certified so they told me to slow it down or go home so I went home.I feel I have a mid 9 sec pass( 9.50s-9.60s) in the car.I have now made an appoiment to get a physical and then get the car certed and make some license passes.
By your 6.18 1/8 et. on Wallace calculators said you would run 9.79 1/4 and your 1/8 mph says 9.70 et.
He also said he shifted it at 6k just shaking it out. And it was a first outing. It might well easily run 50's or 60's.
That said, any Eddie head stroker motor I have ever seen always lays down on the back half of the track with a 4 inch crank. The port volume just isn't there.
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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Re: what converter. 408
[Re: Dodgenu]
#1610359
05/05/14 10:02 PM
05/05/14 10:02 PM
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Joined: Oct 2009
Posts: 1,267
North, Alabama
D-50
pro stock
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pro stock
Joined: Oct 2009
Posts: 1,267
North, Alabama
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Quote:
I took my car to the Friday night test and tune race. The first pass I took an easy hit foot braking and ran 10.54 @ 90 mph lifting at about 900 foot . The second pass I left at 3000 on the T brake and my car really left hard, I still only shifted both gears at 6000 rpm and I lifted at about 1100 feet and I ran 9.91 @ 124. At half track I went 6.18 @ 111 with a 1.29 60 foot.. When I was driving up to the time slip booth I saw the track manager standing there and I knew I had ran in the 9s, I don't have a license for 9s nor is my car s cage certified so they told me to slow it down or go home so I went home.I feel I have a mid 9 sec pass( 9.50s-9.60s) in the car.I have now made an appoiment to get a physical and then get the car certed and make some license passes.
What gear ratio and how tall are your tires?
1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
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