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Forced Induction

Started by volk68, February 08, 2007, 10:49:20 AM

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volk68

I have long been considering some type of forced induction for my Charger, but want to get some insight on it from others who are already doing similar things with theirs.  If you are running a blower, supercharger or turbo setup, I'd love to hear about your experiences with it.  What are the pitfalls you have run into?  How satisfied are you with the results?  Would you do it again, or just go for a stroker setup?

Any details would be appreciated.

Brock Samson

try a search "Ram Air" etc.. i remember a few posts... try "cowl" too...

Blown68Coronet

Once you try it you'll be hooked :drive:
I run a Dyers roots style blower. Firefighter posted a couple of pics in the pro-street thread. If i were to do it again i would go with a procharger unit with meth injection. Then again the 'in your face look" of the roots sticking through the hood is fun too! But boost comes with a price....heat :flame:! That's why the meth injection comes into play, there's a few of here that are forced induction and i'm sure they'll chime in.

Rolling_Thunder

yes - forced induction brings on the heat - I've built a few blower motors - two 440's, and one stroked small block - - -   the 340 block happily lives in a pro-street 1971 challenger - - - street driven with a mild cam and mild boost (about 8psi) - - -
1968 Dodge Charger - 6.1L Hemi / 6-speed / 3.55 Sure Grip

2013 Dodge Challenger R/T - 5.7L Hemi / 6-speed / 3.73 Limited Slip

1964 Dodge Polara 500 - 440 / 4-speed / 3.91 Sure Grip

1973 Dodge Challenger Rallye - 340 / A-518 / 3.23 Sure Grip

Mean 318

I would like to try something like that with my coronet! I might try running through my valance.

volk68

Quote from: Blown68Coronet on February 08, 2007, 03:11:46 PM
Once you try it you'll be hooked :drive:
I run a Dyers roots style blower. Firefighter posted a couple of pics in the pro-street thread. If i were to do it again i would go with a procharger unit with meth injection. Then again the 'in your face look" of the roots sticking through the hood is fun too! But boost comes with a price....heat :flame:! That's why the meth injection comes into play, there's a few of here that are forced induction and i'm sure they'll chime in.


I have this dream of keeping everything under my hood, but I think a supercharger is the only way to get that accomplished.  I also like turbos, but I'm not sure I could brew my own  EFI to make it work.  A roots blower seems like the easiest way to go, but I am wondering about your heat issue.  What extra steps have you taken to cool your setup, and would you consider your car perfectly streetable? 

Rolling_Thunder

well if you like underhood power - go for a procharger....     they fit underhood - - -  the only thing is you'll have to relocate the battery to the trunk....         EFI for a supercharger or turbo'd car isnt exactly as complicated as it sounds...    the most important things are fuel injector sizing, fuel pump flow, and fuel pressure regulator with boost reference (most come with this feature standard) - - -  I am planning on putting a pro-charger on my EFI 512 when all is said and done...    i am building the fuel system as such right now - Aeromotive A1000 fuel pump with braided stainless lines - - -  Aeromotive fuel pressure regulator - - -  running 36lb/hr injectors for now but would be swapped when the pro-charger is added - - -  my system will support the blower down the road...      which was my goal -  even now - the engine is 9.5:1 compression with closed chamber heads...   so i'll be swapping to aluminum to be able to prevent detonation with high boost...           in time...     just takes money,
1968 Dodge Charger - 6.1L Hemi / 6-speed / 3.55 Sure Grip

2013 Dodge Challenger R/T - 5.7L Hemi / 6-speed / 3.73 Limited Slip

1964 Dodge Polara 500 - 440 / 4-speed / 3.91 Sure Grip

1973 Dodge Challenger Rallye - 340 / A-518 / 3.23 Sure Grip

GTX

I was studying mechanical engineering in college and was going to go with a twin turbo setup under the hood. I was all set and had most everything I needed including a pair of really nice new turbo's but then decided that there is nothing ( for me at least) like the visual appeal of a blower out the hood. These cars aren't exactly sleepers so you aren't fooling anyone really. It's sort of hard to ignore one of these cars pulling up next to you with the exhaust rumbling and cam loping along so I decided to just go head put it out there.

One large drawback is that you will never be able to leave your car parked somewhere but then that's pretty much the way it is on a stock looking car nowadays anyway, at least in my opinion.  One story that I've told before was years ago when I had a tunnel ram setup ....wayy back when nobody else ran them and they were a novelty I came out to find guys taking off my air filters! They said that they wanted a look down the throat of my carbs but I couldn't believe they had the cajones to just start taking the air filters off my engine! I also had guys open my hood while I was in the parts store. I ended up chaining my hood. I've even had guys lean on my car trying to look like it was theirs but you get that with any classic car now. Once word gets out that you have anything at all under that hood rumors will spread and there are going to be people who will really want to look at or damage your car. It's sort of hard to disguise the whine of a roots blower and why would you anyway??


Bottom line, it's a lot of money and a lot of work but if that's what you want then go for it! It's only money and you are only here once, just do your research very carefully. I wanted a blower for many, many years until my father in law finally told me to just do it and get it out of my system while I was young enough to enjoy it. I finally had a little more cash than when i was 20 and had to get the bug out of my system.
There are many pitfalls and liars out there who talk and talk but really know little of forced induction or applying it to Mopar's. One large area of dispute is how much pressure you can safely apply to your motor. Personally I'd talk to Ron about that. There are a couple of others in here who I'd listen to as well.
Bench racing and talk gets mighty expensive when it's your thousands on the line and it will cost you thousands!
The work on the engine is also only part of what you'll do. The whole car needs to be thought of for that power.

Just remember that 99% of everyone you talk to is full of crap and\or wannabe's!  And that goes double for me!  ;D
Very few actually do it or know what is really involved but everyone has an opinion. This forum is a great place to talk to some very good people though.




Take everything you hear with a grain of salt, read and ask questions of many people. Add up the grains of salt until you have something that makes sense to you and then make the jump.

One thing I ask though, PLEASE don't cut a good hood for an above the hood setup! Get an old junk hood or better yet, a fiberglass hood.
I used a junk hood from a '70 Satellite for my '70 GTX


GTX

Oh, to answer your question on whether it was worth it. That really depends on you and what you want from it.
There are many levels of a blown engine with relating levels of cash expenditure.
Personally now that I've done this and if I were interested in a race car I'd probably get stroked and one carb unless I really wanted to get out there and then I'd go blown alky but that's a whole other world and imo a ton of broken parts!
If you want visual appeal as well as sound appeal then a blower out the hood will certainly do it. Everyone hears and see's you coming!


Give Ron ( firefighter3931) a shout and tell him what you want and see what he suggests. I'd listen to him.