Re: 'new' engine
[Re: HardcoreB]
#3111568
01/13/23 01:26 PM
01/13/23 01:26 PM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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OP
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Joined: Jan 2003
Posts: 4,211
Shelby Twp. Mi
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I just had to throw the Predators on the block and see things like pushrod angles, etc and was hoping to get some primary header trajectories started but I wound-up getting sick for about a week. High-ports!
Last edited by HardcoreB; 01/13/23 01:27 PM. Reason: pic added
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Re: 'new' engine
[Re: metallicareload]
#3111598
01/13/23 02:09 PM
01/13/23 02:09 PM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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OP
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Looking good! Out of curiosity what numbers are you seeing, what do you consider bad? Excellent question and i have to use an asterisk to explain. I could say 'it depends' and be right too. Any OEM roller bearing wheel I have measured they typically wear-in and loosen .0002" from new and when they move after that they are on there way to failing. I have measured a few Comps with an .820" wheel and these in pic are Isky .850" wheel. TYPICALLY, I see about .0005" (plus or minus .0001") to start. I have done so many OEM to gage, that you'll see as much variation 'operator to operator' as .0002" even with me measuring i may get some lifters that 'start' at say .0006 and the next time i measure it'll get .0005" It's when they get close to .0009" + that it'll concern me. BUT again I've seen some START about .0008" Hope this makes sense!
Last edited by HardcoreB; 01/13/23 02:10 PM.
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Re: 'new' engine
[Re: HardcoreB]
#3111633
01/13/23 03:10 PM
01/13/23 03:10 PM
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Joined: Mar 2006
Posts: 9,980 MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,980
MI, usa
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More mock-ups, more 'problems'... I see the finger pointing. What is the issue? Doug
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Re: 'new' engine
[Re: dvw]
#3111831
01/14/23 10:04 AM
01/14/23 10:04 AM
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Joined: Mar 2003
Posts: 6,402 Heaven
EvilB1Dart
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master
Joined: Mar 2003
Posts: 6,402
Heaven
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Can’t wait to see it finished and the results!
"Any fool can know. The point is to understand"
- A. Einstein
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Re: 'new' engine
[Re: EvilB1Dart]
#3111834
01/14/23 10:42 AM
01/14/23 10:42 AM
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Joined: Jan 2003
Posts: 10,088 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,088
Frostbitefalls MN (Rocky&Bullw...
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Preditors versus B1? It must be a given the predators could be set up with superior hp potential, yet still run a cam that won't beat everything to death. Also the non paired exhaust is a big benefit i would think, keeping heat more even between the center cylinder exhausts promoting better valve seal. What goals do you have for power, engine size, rpm range? I am guessing a predator motor could be set up to have 1100 hp and yet still have reasonable number of runs between rebuilds/ maintenance?
Last edited by gregsdart; 01/14/23 10:48 AM.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 'new' engine
[Re: gregsdart]
#3111883
01/14/23 02:43 PM
01/14/23 02:43 PM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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Preditors versus B1? It must be a given the predators could be set up with superior hp potential, yet still run a cam that won't beat everything to death. Also the non paired exhaust is a big benefit i would think, keeping heat more even between the center cylinder exhausts promoting better valve seal. What goals do you have for power, engine size, rpm range? I am guessing a predator motor could be set up to have 1100 hp and yet still have reasonable number of runs between rebuilds/ maintenance? Thanks Wes. I really just need to get the car up and running again to learn and have some fun. These were the pieces I had long set aside when i was thinking "the fastest I'll ever want to go and afford ...8.50 chassis etc" This is your old block from the Dart FWIW. Greg, these are 440-1 Indy's that were cnc'd at Modern many years ago with 2.25" Ti valves and minor hand work. I can't get the Predators up to speed in time with new valves etc. (they need refreshening) and my current PG trans would 'cry like a little girl' if i put an 'easy on parts' Predator combo on it. It'll be legal for NA 10.5 or my local tracks 'all-motor' class which has rules that correct for different combos. The -1 combo can weight 2775 lbs at 480" I'm trying to make as much power as i can with the parts I have, I don't care how high it has to RPM. Speaking of cams I can't find anyone with a wedge 55mm 4/7 swap so, I'll be running this 'less than ideal' cam that has no additional material for regrinding. It only has a .480" lobe on it so, that will be one bottle-neck.
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Re: 'new' engine
[Re: HardcoreB]
#3112020
01/14/23 11:43 PM
01/14/23 11:43 PM
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Joined: Sep 2003
Posts: 442 montana
BANDIT
mopar
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mopar
Joined: Sep 2003
Posts: 442
montana
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I have a 54mm Bullet 4/7 swap cam that was in my 588, if your willing to switch bearings. are your running Babbit, or roller?
64 Dodge Coronet 440. In progress 1998. Dodge Avenger. 8.35@165. 4400 DA 1980 Plymouth Arrow 572 Hemi. 242" Mullis Dragster. 6.90@ 200mph
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Re: 'new' engine
[Re: BANDIT]
#3112077
01/15/23 10:47 AM
01/15/23 10:47 AM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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OP
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I have a 54mm Bullet 4/7 swap cam that was in my 588, if your willing to switch bearings. are your running Babbit, or roller? It is 55MM babbit .Wasn't aware there is such a bearing, i assume it has the same OD but a smaller ID? Was this in a B1? I sent you a PM.
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Re: 'new' engine
[Re: HardcoreB]
#3112464
01/16/23 11:48 AM
01/16/23 11:48 AM
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Joined: Mar 2003
Posts: 9,112 Rogue River, OR
Jeremiah
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That's a rowdy looking group of gearheads right there.
The valve covers are a classic institution of the 1970's Direct Connection catalog. While I am sure they won't be used in the final rendition you see them on some bery successful race cars in old pictures.
I really dig that roller lifter lash tool. Can you put some simple blue prints on a napkin and post it?
I think the "just have fun" approach is healthy. Not being the competitive type my time at the track is more of a social event. If racing goes okay that is a bonus lol. Days off of work shouldn't be successful!
Moving forward,.you really need to get aluminum valve covers and trim those studs before dvw does something crazy like install a fiberglass hood. : D
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Re: 'new' engine
[Re: Jeremiah]
#3112506
01/16/23 01:21 PM
01/16/23 01:21 PM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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OP
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Joined: Jan 2003
Posts: 4,211
Shelby Twp. Mi
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That's a rowdy looking group of gearheads right there.
The valve covers are a classic institution of the 1970's Direct Connection catalog. While I am sure they won't be used in the final rendition you see them on some bery successful race cars in old pictures.
I really dig that roller lifter lash tool. Can you put some simple blue prints on a napkin and post it?
I think the "just have fun" approach is healthy. Not being the competitive type my time at the track is more of a social event. If racing goes okay that is a bonus lol. Days off of work shouldn't be successful!
Moving forward,.you really need to get aluminum valve covers and trim those studs before dvw does something crazy like install a fiberglass hood. : D Anything you can seat the lifer on ‘square’ this has 2 surfaces that locate. Having an ‘adjustable’ seat makes it modular for other lifters. Then mount a high resolution indicator in a way that pics up the centerline of the wheel and then pry the wheel to gage lash…verify it repeats and viola! He’s using old school M/T aluminum covers with a -12 vacuum fitting welded in place. Some of the stuff in pic was to ship it.
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Re: 'new' engine
[Re: HardcoreB]
#3112619
01/16/23 06:38 PM
01/16/23 06:38 PM
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Joined: Mar 2003
Posts: 6,402 Heaven
EvilB1Dart
master
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master
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Posts: 6,402
Heaven
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Preditors versus B1? It must be a given the predators could be set up with superior hp potential, yet still run a cam that won't beat everything to death. Also the non paired exhaust is a big benefit i would think, keeping heat more even between the center cylinder exhausts promoting better valve seal. What goals do you have for power, engine size, rpm range? I am guessing a predator motor could be set up to have 1100 hp and yet still have reasonable number of runs between rebuilds/ maintenance? Thanks Wes. I really just need to get the car up and running again to learn and have some fun. These were the pieces I had long set aside when i was thinking "the fastest I'll ever want to go and afford ...8.50 chassis etc" This is your old block from the Dart FWIW. Greg, these are 440-1 Indy's that were cnc'd at Modern many years ago with 2.25" Ti valves and minor hand work. I can't get the Predators up to speed in time with new valves etc. (they need refreshening) and my current PG trans would 'cry like a little girl' if i put an 'easy on parts' Predator combo on it. It'll be legal for NA 10.5 or my local tracks 'all-motor' class which has rules that correct for different combos. The -1 combo can weight 2775 lbs at 480" I'm trying to make as much power as i can with the parts I have, I don't care how high it has to RPM. Speaking of cams I can't find anyone with a wedge 55mm 4/7 swap so, I'll be running this 'less than ideal' cam that has no additional material for regrinding. It only has a .480" lobe on it so, that will be one bottle-neck. LOL. Nice! That motor's pieces have quite a few new adoptive parents! Good luck with it!!!
"Any fool can know. The point is to understand"
- A. Einstein
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