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Re: Cast Iron Max Wedge headers
[Re: hemi71x]
#555434
12/25/09 04:44 PM
12/25/09 04:44 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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just a little bit of information for some of you guys that know alot about max wedge exhaust manifolds.
when hooked up to a full max wedge exhaust system,the cars made 425 hp from the factory but when you uncorked the blockoff plates,you were able to achieve an extra 80-90 hp. the power difference was very noticeable when going from corked to a uncorked exhaust system.
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Re: Cast Iron Max Wedge headers
[Re: Real-Fury]
#555435
12/25/09 05:21 PM
12/25/09 05:21 PM
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Joined: Nov 2005
Posts: 15,118
85086
moparpollack
Lil Herman
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Lil Herman
Joined: Nov 2005
Posts: 15,118
85086
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Those manifolds look really cool but imagine changing spark plugs around a cast iron radiator. The manifolds put off a ton of heat and raise hell with master cylinder. If you were going to drive the car and race it I would put headers on. If you were going to have a show car the manifolds would be fine. 
56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bees, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d
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Re: Cast Iron Max Wedge headers
[Re: hemi71x]
#555437
12/25/09 06:07 PM
12/25/09 06:07 PM
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Joined: Jan 2003
Posts: 5,106
Chicago Blackhawks
hemicar1971
master
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master
Joined: Jan 2003
Posts: 5,106
Chicago Blackhawks
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If you are trying to maximize your flow and horse power I would use the aftermarket headers. Not the over the counter pieces of crap headers you can buy at any speed shop. The money you spend in this area will reflect on the Dyno. There are reasons to use short tube or a long tube lengths and various other modifications to a header tube. Spend time on researching this stuff before you buy anything. Max Wedge repro manifolds will run you about 1000+ dollars. Then you can try and buy the rest of the exhaust system.
Your choices of exhaust all depends on the motor modifications and the uses you will have the car doing. Research research research.Dont waste money with an unsuited exhaust system.
1971 HEMI E BODY REGISTRY
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Re: Cast Iron Max Wedge headers
[Re: hemi71x]
#555438
12/25/09 09:27 PM
12/25/09 09:27 PM
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Joined: Jan 2003
Posts: 9,436
Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
I'm sure you would be changing spark plugs from the bottom, with the car up on a hoist, or on jack stands.
Probably wouldn't be much of a problem from the bottom.
Actually,plugs are easier to change than with regular HP manifolds.
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Re: Cast Iron Max Wedge headers
[Re: moparpollack]
#555442
12/26/09 12:32 AM
12/26/09 12:32 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Those manifolds look really cool but imagine changing spark plugs around a cast iron radiator. The manifolds put off a ton of heat and raise hell with master cylinder. If you were going to drive the car and race it I would put headers on. If you were going to have a show car the manifolds would be fine.
last time i checked headers make a ton of heat in
the engine compartment. exhaust manifolds do not.
sparks plugs as said are a breeze to change. those
Maxi Exhaust Mans don't give up a ounce of horsepower
to any modern header. they are alot heavier though.
but thats an excuse to put the battery in the trunk.
single master cylinders in the day did not suffer
the heat sink problem like modern dual master
cylinders will. but you can always had a heat shield
to help protect it.
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Re: Cast Iron Max Wedge headers
[Re: Michael]
#555443
12/26/09 12:34 AM
12/26/09 12:34 AM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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WHAT IS UP ...with all that changin'-the-plugs ??.. !!  What you guys need is a good ignition system and a carb that will not "wipe-out" the plugs in the first place. Last time I had my 62 out .. I had it up to 5400 in high-gear(with a 2.76 gear) ...and it never missed a beat. And THOSE plugs were put in-there in 1979 ! (about 40k miles ago)
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Re: Cast Iron Max Wedge headers
[Re: dOc !]
#555444
12/26/09 02:50 AM
12/26/09 02:50 AM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
WHAT IS UP ...with all that changin'-the-plugs ??.. !!
What you guys need is a good ignition system and a carb that will not "wipe-out" the plugs in the first place.
Last time I had my 62 out .. I had it up to 5400 in high-gear(with a 2.76 gear) ...and it never missed a beat.
And THOSE plugs were put in-there in 1979 ! (about 40k miles ago)
Heck yea I have had the same plugs in my 63 for almost 2 years and raced 5 times this year with them along with alot of street miles. Never had any problems and turned a new best et the last time out.  But honestly I would love to see a back to back dyno test of the Maxie exh manifolds vs headers. Ron
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Re: Cast Iron Max Wedge headers
[Re: SportF]
#555446
12/26/09 01:03 PM
12/26/09 01:03 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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??
never layed my hands on some tti's but i know that the max wedge exhaust mans are heavier
then a set of hooker super comps. i do believe also that the original crossram intakes were made
from magnesium too. which is lighter then aluminum. not a 100% on mag use though.
383man there were a couple of dyno tests. the max mans were = to the headers for power making. the
exhaust that was standard on the max cars were tuned for it. the 3" pipe before the dumps was just
like collector extensions used today. i believe the max wedge cars destine for SS use came with
a single exhaust. IIRC. therefore i think thats where the "header makes more power" theory came from.
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Re: Cast Iron Max Wedge headers
#555449
12/26/09 03:48 PM
12/26/09 03:48 PM
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Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms
Mr Wizzard
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Mr Wizzard
Joined: Jan 2003
Posts: 42,714
Spokane Washington
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Quote:
i do believe also that the original crossram intakes were made
from magnesium too. which is lighter then aluminum. not a 100% on mag use though
All Max Wedge Cross Ram Intakes were aluminum
1964 Hemi Cross Rams were aluminum
1965 & 1968 Hemi Cross Rams were Magnesium. Some 65 Hemi cars might have had leftover aluminum intakes but I've never seen a documented example.
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Re: Cast Iron Max Wedge headers
[Re: ScottSmith_Harms]
#555450
12/26/09 03:54 PM
12/26/09 03:54 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Quote:
i do believe also that the original crossram intakes were made
from magnesium too. which is lighter then aluminum. not a 100% on mag use though
All Max Wedge Cross Ram Intakes were aluminum
1964 Hemi Cross Rams were aluminum
1965 & 1968 Hemi Cross Rams were Magnesium. Some 65 Hemi cars might have had leftover aluminum intakes but I've never seen a documented example.
sorry, what i meant to say was the original ie: very early 413 crossrams. i remember discussing that
with a former MoPar SuperStock racer. i prolly misunderstood though. point noted and thanks for
clearing that up for me.
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Re: Cast Iron Max Wedge headers
[Re: 383man]
#555451
12/26/09 07:04 PM
12/26/09 07:04 PM
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Joined: Sep 2006
Posts: 1,139
West Tennessee
rbstroker
super stock
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super stock
Joined: Sep 2006
Posts: 1,139
West Tennessee
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I agree with 383man. I'd love to see a testing of maxie exhaust manifolds vs headers vs 68-69 roadrunner type manifolds.
This is the land of the free
because of the brave
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Re: Cast Iron Max Wedge headers
[Re: rbstroker]
#555452
12/27/09 12:43 AM
12/27/09 12:43 AM
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Joined: Jan 2003
Posts: 5,106
Chicago Blackhawks
hemicar1971
master
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master
Joined: Jan 2003
Posts: 5,106
Chicago Blackhawks
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Like I said earlier dont test the Factory Headers Exhaust Manifolds against that over the counter stuff. Even TTI and Hooker are made to fit first and flow second. Even with the factory header it does not work with every application or variable that a RB-B Motor can be use for. If you are looking for a cheaper exhaust that works ok use the headers that every speed shop sells. The Max Headers looks cool and works real well. Custom built race headers and exhaust system cost money. Go what every way you like,but research before you buy any of them.
1971 HEMI E BODY REGISTRY
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