mgoblue9798
Well-Known Member
His engines sucked the paint right off of the chebbies and ferds.
340 4 barrel and 340 6 barrel: were they really UNDERrated?
- Thread starter Kern Dog
- Start date
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ValiantRacing
Well-Known Member
The AVS carburetor is a lot better than most people think it is, the little AFB works well also.
NC Engine Builder
Grumpy Old Man
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The thermoquad was a shot in the arm for the 340. The 71 high compression TQ equipped 340 is the high water mark as far as I'm concerned. I would seriously doubt the six pack actually made any more power
We have raced both of the a lot with stock intakes and flowed them.
The 6 Pack manifold on the 340 is absolutely worse.
It looks like an elephant stepped on it or it was grafted onto a
4 Barrel manifold as an afterthought.
However, that being said the 6 pack setup is only somewhat worse
in performance. But it is in most cars factored a Higher HP that is
in my opinion really not merited.
The 6 Pack manifold on the 340 is absolutely worse.
It looks like an elephant stepped on it or it was grafted onto a
4 Barrel manifold as an afterthought.
However, that being said the 6 pack setup is only somewhat worse
in performance. But it is in most cars factored a Higher HP that is
in my opinion really not merited.
340sFastback
Well-Known Member
Did you block the heat cross over ports on the intake manifold and remove or disable the heat riser in the passenger's side exhaust manifold? I would have.
mopar head
DoD nuisance Alien/Squatch extermination team
Funny, that`s how my 69 engine was set up when I bought it. I still have that factory spreadbore setting out in the garage collecting dust.
Woody500
Well-Known Member
Not sure about A8, but a couple yr earlier Audi had intercoolers, mounted low in front of front wheels. I havent seen one, but pics look like they might fit my 65 Barracuda in the same location, since no room behind grill, if i duct them properly. Was A4 station wagon model I saw.
Woody500
Well-Known Member
That worn out old trope again!
Nah! Some of the smartest people I've ever known smoked it.
And living in Florida you learn the right terps can help you.
One can even suppress hunger and you can lose weight, one terp can ease symptoms of asthma. But that's another area for research , I never read which terp that was, and some probably don't help.
You are confused, man....This is a topic about stock 340 engines, not Audis or marijuana....
Woody500
Well-Known Member
And the tuning of the press cars could be considered an advertising department cost & wrtten off.
Woody500
Well-Known Member
I didn't bring up the subject . Just tired of old jokes that mislead people.
Woody500
Well-Known Member
& read the whole post, Audi brought up by someone else, too!
furrystump
Well-Known Member
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My car now weighs 3045 and it took a BUNCH to get it to that weight. All CI small block, 904/8 3/4” manual steering. With about 3-4 hundred lbs in lighter stuff. I own scales and weigh it more than I weigh myself.
Not when they were completely stock with just tuning.
However, absolutely when we began actually racing them
seriously. The rattle made me crazy on the heat riser and it
is wired open on my son's 18,000 miles 340 Duster survivor/
Ya Know:
We race our 340 cars in D/SA or
E/SA because they are rated all the way up
to 314HP in NHRA from 275HP. That means we race early
396 Camaro/429 Mustangs/ 455SD Firebird/440
Darts = HEADS UP. All Big Block muscle cars from
our era. Every one of them Bonafide at least 13 second
or better cars in the hands of competent racers.
We routinely beat them and that is where we got all
our 50 Class Wallys!
Jon is racing for another one in his 71 340 Moulin Rouge
Duster in Superstock this afternoon.
Feel Free to dispute this too.
But it is all on the record and researchable
like everything else I have stated!!
We race our 340 cars in D/SA or
E/SA because they are rated all the way up
to 314HP in NHRA from 275HP. That means we race early
396 Camaro/429 Mustangs/ 455SD Firebird/440
Darts = HEADS UP. All Big Block muscle cars from
our era. Every one of them Bonafide at least 13 second
or better cars in the hands of competent racers.
We routinely beat them and that is where we got all
our 50 Class Wallys!
Jon is racing for another one in his 71 340 Moulin Rouge
Duster in Superstock this afternoon.
Feel Free to dispute this too.
But it is all on the record and researchable
like everything else I have stated!!
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I agree. If only they had kept the four speed cam!
I could not care less about what you think of me.
Are you still insisting that a production 340 only
runs 5200/5400? If so, you are an absolute idiot!
Sorry I forgot about the cheater camshaft in the 11.88
National record car. It is stock lift but optimized duration.
It was a long time ago and I apologize for the oversight.
It was not deliberate and I set the record straight.
In my opinion if all the parts and pieces are as delivered,
they can certainly be optimized and tuned to best available
performance and are still stock parts.
Tony (RIP) was my good friend and so are his daughters.
I still see and do my best to help his daughters every opportunity
that I get. You sir do not speak for him and never have.
You are throwing out the baby with the bath water on understanding
my statements. They numbers on the `11 and 10 second cars are
clearly with some modifications and just to illustrate the potential
of the 340 with basic modifications of the stock parts in line with
the discussion. The 13's runs by my friend's and my Dad's
car are absolutely correct = I was there to see them and remember
then well. A stock part can be adjusted and still a stock part in my opinion,
you are welcome to disagree with me on that. What the Hell do I have to gain
by fabricating any of these things I have posted.!!!
I come on this site primarily to try and help out people that may have less
experience with the Mopar hobby.
BTW: If you Google "John Irving Racer"
You can see some of my cars and their performance
that I talk about on here.
May I have you name if you are willing to divulged it on this site?
If the majority of the folks on this forum agree with you guys that I
am an egotistical braggard = Kindly, just give me some feedback and I withdraw
from posting anything about this stull, except for selling my deceased friend's parts.
Are you still insisting that a production 340 only
runs 5200/5400? If so, you are an absolute idiot!
Sorry I forgot about the cheater camshaft in the 11.88
National record car. It is stock lift but optimized duration.
It was a long time ago and I apologize for the oversight.
It was not deliberate and I set the record straight.
In my opinion if all the parts and pieces are as delivered,
they can certainly be optimized and tuned to best available
performance and are still stock parts.
Tony (RIP) was my good friend and so are his daughters.
I still see and do my best to help his daughters every opportunity
that I get. You sir do not speak for him and never have.
You are throwing out the baby with the bath water on understanding
my statements. They numbers on the `11 and 10 second cars are
clearly with some modifications and just to illustrate the potential
of the 340 with basic modifications of the stock parts in line with
the discussion. The 13's runs by my friend's and my Dad's
car are absolutely correct = I was there to see them and remember
then well. A stock part can be adjusted and still a stock part in my opinion,
you are welcome to disagree with me on that. What the Hell do I have to gain
by fabricating any of these things I have posted.!!!
I come on this site primarily to try and help out people that may have less
experience with the Mopar hobby.
BTW: If you Google "John Irving Racer"
You can see some of my cars and their performance
that I talk about on here.
May I have you name if you are willing to divulged it on this site?
If the majority of the folks on this forum agree with you guys that I
am an egotistical braggard = Kindly, just give me some feedback and I withdraw
from posting anything about this stull, except for selling my deceased friend's parts.
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mopowers
Well-Known Member
So, an otherwise stock 340 Demon can run 11.88 at 113 with a cam swap, gear, and slick? My little 340 is really jealous and I wish I had that magical touch.
340sFastback
Well-Known Member
Wow what an awesome story about Jon and his son. That the first I had read about your racing and mopar history:
Father and Son Mopar® Drag Racing Duo
340sFastback
Well-Known Member
I read stories in past about stamped steel factory rockers having wide range of tolerances. So racers would get several dozen rockers, find the set with the biggest lift, and run those to get a performance edge. But still technically stock parts.
I thought it was Hughes Engines that often made claims that the factory 1.5 ratio rocker gear often checks out around 1.4 to 1.45.
More like 1.35 to 1.4 is the going rate.
Years ago I switched from the stock stamped steel rockers to 1.6 aluminum ones and noticed that my cranking compression numbers all got closer together in numbers. It was as if a true ratio on each rocker somehow equalized the low numbers.
I am still waiting for you to reveal your name?
That Demon never had the short block removed from
the engine bay when the first time it set the NHRA National Record.
We also ran a 360 Duster in Stock Eliminator in 1975
with an Automatic that ran 12.40 with the block never removed
from the engine bay back then either.
I really do not care about your opinion or what statement you
pull out of thin air or anywhere else you pull them out of as you
have no credibility. You just hurtle insults and personal attacks without
a shred of documentation.
Read my post again = I never claimed to speak for my friend Tony
or anyone else ever. I speak only for myself and here from my own experiences
in life.
Again, I was there back then, and I still am here now living my Dreams and
helping everyone else live theirs when I can.
To Summarize:
Those that can DO, those that CAN'T hoot on the sidelines
and throw mud and hide behind their keyboards.
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this whole thread is starting to read like the comments section of a recipe:
i didn't have cumin so i used tarragon instead and didn't have chicken so i used beef, my oven was broken so i used my microwave and everything came out awful. this is the most terrible dish i've ever made and i don't know how anybody thinks that it's good. even my children laughed at me and now my husband won't talk to me.
i didn't have cumin so i used tarragon instead and didn't have chicken so i used beef, my oven was broken so i used my microwave and everything came out awful. this is the most terrible dish i've ever made and i don't know how anybody thinks that it's good. even my children laughed at me and now my husband won't talk to me.
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