What is involved to run one of these. The set up has the intake/carb and dual exhaust manifolds. The car does occasional weekend cruising, no drag strip.

_________________
"that's a nice car....are you gonna fix it up some day?"

on what year/model car? what motor combo? transmission? gears?
in other words, what's the whole package?

-james

_________________

72 Swinger, 225, 904, 71/4 suregrip, 2:93 gears, stock cam for now.

_________________
"that's a nice car....are you gonna fix it up some day?"

you don't want a hyper pack.

more like a bbd and a super six intake.

sb

OK thanks, I'll stick to something a little less radical. Nice eye candy on cruise night though.

_________________
"that's a nice car....are you gonna fix it up some day?"

Ya, Hyperpacks do look pretty sweet!!!!
Cory

_________________
-'72 Valiant Sedan, Stock (For Now)

I ran The Hyperpak for about a year in my dart with stock cam, valves and a 3.23 rear. The only other mod was I had shaved the head .090".

I used a 500 cfm AFB.

I did have headers and the 4 four speed.

I only drove it in the summer, Things got alot better when i put in the mopar .460 Lift 268* duration cam.


In your cold environment it would probably be treacherous. (sp?)

I wonder if a heat tube could be devised from maybe #3 or 4 exhaust manifold runner to he base of the H. pak??

Sort of like the '69 Slants' Anti - Icing tube.??


Any thoughts?

Dr. Dodge??

Greg

_________________
http://www.youtube.com/hyperpack

Someone needs to go back over the old 'daily driving' posts I did years ago use the term 'hpak' for the posts...

You will find that with a short cam and dutra duals it runs pretty well, you will want some taller gearing than say 2.76's (3.23's are good). The short cam and long runners make for a torque combo, but the cam will 'run out' after 3500 rpm (just when the hpak is wanting to 'come on')...dividing the plenum will help with this and prevents some reversion in the intake.

In all facets you'll have to dial the carb in to be rich to make it work in most weather. If you look at the previous posts I ended up making a 'heat box' to go underneath the plenum, it works ok(much better than 'none', but I now find that with all the above work, the rear of the plenum tends to heat faster and the front nearest the fan tends to stay cool (making a tuning nightmare when the rear 3 cyls can be leaned out and the front has to stay slightly richer...LOL).

I think with a 'heated air' intake like stock has it would probably like things better when cold, below 40 degrees F it's not very 'happy'...


Fuel Injection would change all this....


-D.Idiot

D.I.-
do you think that an electric fan would help the intake maintain a more even temp across the plenum? maybe less airflow at low speeds? things would certainly warm up quicker.
i see in some old pics you're running one of the good 6 or 7 blade stock fans. those really move some air.

-james

_________________

The electric fan might help some, when it's switched off...
The pics are older and I run a Volare 5 blade slant six clutch fan now ( I ran the 7 blade during the summer since it as plenty hot and the temp gauge said things were kinda getting 'toasty' under the hood. The clutch fan is nice in all weather.

The bad part is a couple years back during the winter, I used the car and blocked off part of the radiator with some fiberboard ...warm ups were quicker, heater was nice and hot, but blocking half the radiator didn't help with distribution until it was 'warmed up' then went through a couple of 'hot soaks'...

If you're in a warmer climate, you probably will be ok..., heated air intake would make things 'more uniform'.

-D.Idiot