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Re: Requesting guidance on a new build....
[Re: Chris'sBarracuda]
#1623260
06/25/14 10:18 AM
06/25/14 10:18 AM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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Yes I do understand better now after speaking with the many guru's here about head flow and cubic inch. I knew a guy a while back that had a 596 Mopar Wedge. 4.625 stroke and 4.530 bore. he had very very nice parts in it. Heads flowed 420 I think. He could only get 1000 to 1010 hp out of it. It just didn't make sense to me. I still feel that his combo was off some too. 
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable! 
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623261
06/25/14 10:22 AM
06/25/14 10:22 AM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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I mainly want to make sure I do this right. If I have to do it again I'll probably get divorced and have to come live with one of you on here 
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: Cheatham]
#1623263
06/25/14 11:51 AM
06/25/14 11:51 AM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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I can understand that.
I'd like to see what my o'l fat girl can do with the new bullet. Then dial it back for some longevity and consistency.
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623264
06/25/14 12:00 PM
06/25/14 12:00 PM
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Joined: Jan 2003
Posts: 19,352
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,352
Las Vegas
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Yes I have run 4.5 stroke stuff and IMO they ran like poo..Last one was a Stage V Hemi in my Barracuda car went 8.70's with that at 3000lbs. What a turd!!! The Stage V stuff was ok but it will be the last time I RACE an old school hemi unless I have a blower for sure. Had a lot f money in that motor for it performing like it did.
I do not understand why Mopar guys are so afraid of RPM. Only a few ways to make power and RPM is one of them. Especially if you are cylinder head limited RPM is the ONLY way to make power. If you build it right they will last just fine at a tad more RPM, but you have to have your comfort zone I suppose. IMO 8000-8500 in the traps is not gonna hurt anything and can be very durable if done right.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Requesting guidance on a new build....
[Re: Al_Alguire]
#1623265
06/25/14 12:39 PM
06/25/14 12:39 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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Quote:
Yes I have run 4.5 stroke stuff and IMO they ran like poo..Last one was a Stage V Hemi in my Barracuda car went 8.70's with that at 3000lbs. What a turd!!! The Stage V stuff was ok but it will be the last time I RACE an old school hemi unless I have a blower for sure. Had a lot f money in that motor for it performing like it did.
I do not understand why Mopar guys are so afraid of RPM. Only a few ways to make power and RPM is one of them. Especially if you are cylinder head limited RPM is the ONLY way to make power. If you build it right they will last just fine at a tad more RPM, but you have to have your comfort zone I suppose. IMO 8000-8500 in the traps is not gonna hurt anything and can be very durable if done right.
Why do you believe the reason is, that the motor with the 4.5 crank ran like poo?
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: Al_Alguire]
#1623266
06/25/14 12:57 PM
06/25/14 12:57 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:
Yes I have run 4.5 stroke stuff and IMO they ran like poo..Last one was a Stage V Hemi in my Barracuda car went 8.70's with that at 3000lbs. What a turd!!! The Stage V stuff was ok but it will be the last time I RACE an old school hemi unless I have a blower for sure. Had a lot f money in that motor for it performing like it did.
I do not understand why Mopar guys are so afraid of RPM. Only a few ways to make power and RPM is one of them. Especially if you are cylinder head limited RPM is the ONLY way to make power. If you build it right they will last just fine at a tad more RPM, but you have to have your comfort zone I suppose. IMO 8000-8500 in the traps is not gonna hurt anything and can be very durable if done right.
I agree 100%... I have always been a rpm guy.. and
if you look at how HP/torque is measured... the number
of pulses in a minute(pulse being a firing) and the
more pulses you get in that minute the more power
it will make... its just a matter of building the
engine with light parts and good balance... most times
I turn down the counter weights on the crank to move
the weight in closer to the center line... then use
light pistons... big stroke makes a ton of torque
but that can cause issues at the line to maintain
traction... I always look at what a pro stock engine
is.. short stroke with big bores and a ton of rpm...
but you have to have heads and induction to support
the rpm then also you need good exhaust to get it out..
What I said before about running meth is that burns
2X the amount of fuels and that takes volume/area
to get that quantity in and out... if you were to
look at heads sold by different manufactures you will
see that they have larger valves and flow over the
gas versions of the same head
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623268
06/25/14 01:30 PM
06/25/14 01:30 PM
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Joined: Apr 2005
Posts: 2,128
Salt Lake City
camastomcat
top fuel
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top fuel
Joined: Apr 2005
Posts: 2,128
Salt Lake City
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Honest, I'm not being a smart alec. How do you account for the same motor, going from race fuel to alcohol, making more power, if the extra alcohol is taking up more room and is cutting back on the much needed oxygen?
They usually make more torque, but less HP at sea level tracks.. The idea is the more fuel you can put in an engine, the more air you get through it, and alcohol carries it's own oxygen molecule allowing better power in high altitude situations. At sea level, not so much. Also, alcohol is very consistent.
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Re: Requesting guidance on a new build....
[Re: camastomcat]
#1623269
06/25/14 01:40 PM
06/25/14 01:40 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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Quote:
Honest, I'm not being a smart alec. How do you account for the same motor, going from race fuel to alcohol, making more power, if the extra alcohol is taking up more room and is cutting back on the much needed oxygen?
They usually make more torque, but less HP at sea level tracks.. The idea is the more fuel you can put in an engine, the more air you get through it, and alcohol carries it's own oxygen molecule allowing better power in high altitude situations. At sea level, not so much. Also, alcohol is very consistent.
That is the main reason why I want to use it in this motor that I'm building. More consistency. Our actual elevation at the track is 2720 feet. Oh and the other reason I want to use alcohol is that it is WAY cheaper than C-16
Thank you for explaining about the alcohol carrying it's own oxygen molecule.
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623270
07/01/14 12:22 PM
07/01/14 12:22 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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Anyone have any rod recommendations? ( aluminum or steel )
Pros/Cons
Goods/Bads
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623271
04/01/15 06:26 PM
04/01/15 06:26 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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This is way over due and a much needed update on my build so far;
Well I did finally get my new wedge block a few months back.
- 4.500 bore KB block with the 54mm cam upgrade, in the standard cam location.
- K-1 crank 4.675 with 2.2 journals (4.675 is correct)
That makes 595ci.
- Molnar 7.1 rods
- Jesel belt drive
- B1-MC heads CNC ported. They flow 440 range on Intake, 300 range on Ex.
- Jesel paired shaft rocker arms, 1.7 ratio.
- I have a set of Billet Specialty valve covers being made. Had to do that to clear the rocker arms.
Been waiting over a month for Koffel's to get more B1 intakes made.
Haven't ordered a cam, pistons, lifters or push rods yet.
I will probably need a new tranny. Or severely upgrade the glide I have.
Needless to say it has been slow going.
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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