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Best bolt on upgrade

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randog

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« on: March 29, 2014, 09:53:45 PM »
I have a packajet 460 stock cast cj intake center riser exhaust 750 holly vac secondary's.I don't know the cam or the internals most likely packajet specs. What is the best bolt ons to help with a few more ponies thanks. Oh yeah it has dv3a heads


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Flusher

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« Reply #1 on: March 29, 2014, 10:37:43 PM »
What is the best bolt ons to help with a few more ponies thanks.

N2O!  No other bolt-on part will give you as much performance as nitrous oxide, per dollar spent.  There are so many kits available today that you will be able to find one that is in your horsepower and price range.  And it is a blast to push that button.   :thumbup:
"I want to roll with my brother Joe" - Joe Bateman - January 29, 1950 ~ November 27, 2013

randog

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« Reply #2 on: March 29, 2014, 10:58:06 PM »

N2O!  No other bolt-on part will give you as much performance as nitrous oxide, per dollar spent.  There are so many kits available today that you will be able to find one that is in your horsepower and price range.  And it is a blast to push that button.   :thumbup:

I bet and I would push the heads right off


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beerjet

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« Reply #3 on: March 29, 2014, 11:24:33 PM »
Bolt on a beefier bottom end.
Then bolt on some hemi heads.
Then bolt on a sheet metal intake.
Then bolt on twin dominators .....


-beerjet-

i dont but im all for stuffin shit in her ass to make her go away :-*

beerjet

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« Reply #4 on: March 29, 2014, 11:25:48 PM »
Sounds like you first need to start UNbolting...


-beerjet-

i dont but im all for stuffin shit in her ass to make her go away :-*

mash on it

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« Reply #5 on: March 29, 2014, 11:32:35 PM »
1.8 roller rockers

850 holley and an aluminum intake

8-71 blower and 2 850's

36DD's (bolt-ons  ;) )

Dan'l
CJ/RR 212...under construction  "Pistol Annie"

beerjet

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« Reply #6 on: March 29, 2014, 11:49:41 PM »
1.8 roller rockers

850 holley and an aluminum intake

8-71 blower and 2 850's

36DD's (bolt-ons  ;) )

Dan'l
Yet another great combo....

Honestly, I would start with a better flowing exhaust.


-beerjet-

i dont but im all for stuffin shit in her ass to make her go away :-*

ka0tyk

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« Reply #7 on: March 30, 2014, 12:26:54 AM »
bolting this on would be your best bet.


Flusher

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« Reply #8 on: March 30, 2014, 03:35:46 AM »
Indeed!

Driving an NA motor is like driving around with half of your plug wires off.

You can always add the electro-pneumatic top-end quick disassembly system for when you need to expedite head removal at the touch of a button.

In all seriousness, I am a strong advocate of forced induction.  For jet boats, I am a big fan of the newer designs of centrifugal superchargers.  For me, nothing beats the cool-factor of a roots blower popín out, except for a PSI screw blower on alcohol.  Intake mounted blowers, like a roots blower, presents some challenges on Fords while trying to work the drive around the distributor.  You may need a low-profile distributor.  A blow-through centrifugal will not have this problem and will be the easiest to install.  Once you factor boost into the equation, aftermarket or ported heads really arenít necessary as is a bigger cam.  Realistically, you wouldnít even have to tear into the engine if you keep boost levels reasonable.  Your compression is already a blower-friendly 7.8:1.  A good flowing exhaust would definitely be in order.
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« Reply #9 on: March 30, 2014, 07:02:15 AM »
I have the same heads... Port the smog hump out and weld up the hole.

randog

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« Reply #10 on: March 30, 2014, 11:36:38 AM »

I have the same heads... Port the smog hump out and weld up the hole.

I don't think these heads have the smog hump or holes there marine heads but I could be wrong


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randog

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« Reply #11 on: March 30, 2014, 11:44:30 AM »

Indeed!

Driving an NA motor is like driving around with half of your plug wires off.

You can always add the electro-pneumatic top-end quick disassembly system for when you need to expedite head removal at the touch of a button.

In all seriousness, I am a strong advocate of forced induction.  For jet boats, I am a big fan of the newer designs of centrifugal superchargers.  For me, nothing beats the cool-factor of a roots blower popín out, except for a PSI screw blower on alcohol.  Intake mounted blowers, like a roots blower, presents some challenges on Fords while trying to work the drive around the distributor.  You may need a low-profile distributor.  A blow-through centrifugal will not have this problem and will be the easiest to install.  Once you factor boost into the equation, aftermarket or ported heads really arenít necessary as is a bigger cam.  Realistically, you wouldnít even have to tear into the engine if you keep boost levels reasonable.  Your compression is already a blower-friendly 7.8:1.  A good flowing exhaust would definitely be in order.

I'm a big fan of superchargers to but I was asking about poor man bolt ons a few hundred bucks at a time


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tunnels

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« Reply #12 on: March 30, 2014, 01:12:49 PM »
A edelbrock intake can be had used, then roller rockers, then a cam. Have the carb set up properly to this set up. If you buy all the parts and then install you can save some money on gaskets. Look at your ignition system, if you have points it might be time to upgrade it, a good HEI system( or what ever ford calls it) does wonders and is fairly inexpensive if you don't go to exotic. Simple stuff that wont break the bank but you should see improvement each time. a lot of good used parts out there.
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mash on it

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« Reply #13 on: March 30, 2014, 03:57:27 PM »
A edelbrock intake can be had used, then roller rockers, then a cam. Have the carb set up properly to this set up. If you buy all the parts and then install you can save some money on gaskets. Look at your ignition system, if you have points it might be time to upgrade it, a good HEI system( or what ever ford calls it) does wonders and is fairly inexpensive if you don't go to exotic. Simple stuff that wont break the bank but you should see improvement each time. a lot of good used parts out there.

All of this is good advice, but is useless if the pump needs rebuilding.
small HP and a good pump will always be better than big HP and a shot pump...
Pumps are cheap and easy, too

Dan'l
CJ/RR 212...under construction  "Pistol Annie"

randog

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« Reply #14 on: March 30, 2014, 09:18:04 PM »

A edelbrock intake can be had used, then roller rockers, then a cam. Have the carb set up properly to this set up. If you buy all the parts and then install you can save some money on gaskets. Look at your ignition system, if you have points it might be time to upgrade it, a good HEI system( or what ever ford calls it) does wonders and is fairly inexpensive if you don't go to exotic. Simple stuff that wont break the bank but you should see improvement each time. a lot of good used parts out there.

This is what I was thinking and later down the road put some flat tops in it and get the cr up


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GT Jets

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« Reply #15 on: March 30, 2014, 10:22:01 PM »
I have a packajet 460 stock cast cj intake center riser exhaust 750 holly vac secondary's.I don't know the cam or the internals most likely packajet specs. What is the best bolt ons to help with a few more ponies thanks. Oh yeah it has dv3a heads


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You guys all missed the obvious one.

You don't say what year motor, but betting a little more valve timing would really piss that thing off...

Buy a quality timing set and take the 4* retarded cam timing out and it will be good for an honest 100RPM. Done it at least a dozen times. The early to mid seventies Ford Crate motors all had retarded timing...

Should be able to do this for under a hundred bucks and an oil change.  ;)


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« Reply #16 on: March 30, 2014, 11:47:08 PM »
...betting a little more valve timing would really piss that thing off...

Indeed!  A bigger cam, high ratio rockers, single plane intake, bigger carb, etc. will all contribute to aggravating the dynamic compression ratio with the already low static compression ratio.  All of that will cause it to lose cylinder pressure.  Advancing the cam per GTís suggestion will help build cylinder pressure by closing the intake valve earlier while the piston is lower in the compression stroke.  Really?!  :o  4 degrees retarded is huge.

Upgrading to a modern electronic ignition, if you donít already have one, is a good idea.  I wouldnít spend huge dollars on a mega-watt ignition that you could arc weld with.  A weak ignition system wonít light the fire, but overkill will not net you any more horsepower either.

Until you get some pistons that can build some real cylinder pressure, you can lose power with every bolt-on that you do.  My suggestion still stands, put a blower on it.  I understand the dollar dilemma.  Most of us have to do this one part and one paycheck at a time.  If you want to play while you are stacking parts, put a smallish plate N2O system on it and have fun.

I keep assuming that everything is right to begin with, so I wont waste time telling you to make sure that your carb, ignition, and everything else are in good working order and tuned properly.
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randog

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« Reply #17 on: March 31, 2014, 06:28:48 PM »

Yet another great combo....

Honestly, I would start with a better flowing exhaust.


-beerjet-

This is the exhaust that's on it going to put new gaskets in it this weekend


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beerjet

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« Reply #18 on: March 31, 2014, 06:31:20 PM »
This is the exhaust that's on it going to put new gaskets in it this weekend


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Sexy....
I'm jealous.

-beerjet-

i dont but im all for stuffin shit in her ass to make her go away :-*

randog

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« Reply #19 on: March 31, 2014, 08:57:35 PM »

Sexy....
I'm jealous.

-beerjet-


It's a decent exhaust isn't it


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beerjet

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« Reply #20 on: March 31, 2014, 09:07:24 PM »

It's a decent exhaust isn't it


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Better than logs.

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i dont but im all for stuffin shit in her ass to make her go away :-*

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« Reply #21 on: April 01, 2014, 09:15:56 AM »
In my opinion, the best route to go is... save up your loot and do several upgrades at once to get the benefits each aspect has to offer. No one single thing you can bolt on is going to net huge results... but combine a couple at once, and you'll see some benefits. The big gain upgrade points would be: compression, carb, cam, exhaust port work/cylinder head work... combined together, as each on it's own really does not add up to being worth the expense of each on it's own.

Honestly, the best thing you can do now, is make sure everything is tuned up correctly... make sure your ignition is at least half way decent (if it's points, ditch them for at least a petronix, or as much as a ready to run MSD) as ignition will create more problems if it's crappy than just low hp (misses, won't rev, hard starts, etc...)... and make sure your pump is in decent shape. Often times... a well tuned stock engine and pump will run day and night better than a so-so engine and pump with a bunch of bolt-on's thrown at it. And as long as it runs fairly well, and runseach time you want to use it... you can stash away loot to do a big upgrade that will net some real gains.
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