Hello. I've been reading this site for info for some time now and registered so I can ask you guy's some question's. So let me start by stating what I have and what I'm after. I have a 1970 plymouth duster w/ a 225 slant six, 904 trans, and 7 1/4 rear. For now I have some questions on the engine. The 225 is stock except for clifford slipt headers and intake w/ a 350 cfm holley 4 barrel and have put the mopar ignition conversion kit on (replaced the points) and a flame-thrower coil. My desire is to make 300+ (streetable) hp. From what I've fuel injection and a turbo would be best and cheapest way to go. I've read the DeBiase article on fuel injection and liked what I saw. Easy, cheap, affordable, and straight forward. The only problem I have w/ it is that it's GM, and though retro fitting GM stuff to the six is the easiest and cheapest way to go, I'd prefer not use GM or import stuff on my mopar (undecided on ford). But would use what is needed (and easiest) to get what I'm after. Ok before I go asking about FI and turbos, I want to ask about some other parts first.
1. Would the stock water pump work with my quest for 300+ hp. or would one with more be needed?
2. Would I need a new harmonic balancer for my engine once it has been machined and rebuilt for my application I've read one can be had from clifford, also have read that a 440 balancer would bolt right up and if so might the timing marks be off (has anyone tried this?). And I've found an Aussi site that sales balancers and more parts for the slant six.
3. What would you guys recommend for a timing chaine? I've seen a cloyes double roller offered from clifford and a couple choices on the Aussi site.
Sorry for the long intro and would be thankful for your suggestions. And the Aussi site I refer to is http://www.pentastarparts.com.au/drivel ... ngine.html

Do some head work and add a nitrous kit, that'll be the easiest to get 300+. Fuel injection is not easiest and a turbo can be cheap but this depends on your fabrication skills. As Charlie_S has said before, you can pay now (turbo) or pay later (nitrous). A nitrous system can be added for $500-700 (remember, fuel system requirement add ons), I think you could fab together a turbo for $1000-1500. If you want fuel injection (which you should with a turbo), go with a home built system, with Megasquirt as a controller. You will probably end up using GM sensors for the system, and that is because they are cheap, plentiful and work well.
A new stock pump will be fine, you will need a good radiator though. The stock 2 core or a 3 core from a V8/AC car should work plenty.
The stock balancer will work for a street car at 300hp.
I'd run the stock timing chain up to 300. If you have the $$$ get a double roller from clifford, sure, why not.

Thanks for the reply. Yes a nitrous system would be the bargain basement deal, but I really don't like the stuff very much. To get that power you need to hit a button, that empties a bottle that needs to be filled over and over. I like having that power on demand any time any where with just stepping harder on the gas. And shooting too much gas into an ill prepared engine can blow the motor. And as far as using GM parts, I may as well use them. And looking at ebay I could get Buick Grand National parts cheap, a factory turboed car. Would the turbo off one get my 300+ hp. safely with FI and a properly built engine? I would like to use a blow-through turbo if not. If using an ecm off the buick, would a msd 6btm box (made for forced induction setups for timing control and detonation prevention) be a good choice? Or would the box be a good choice for any turbo setup? Pros/Cons.

How about a turbo and NOS?
DD

NICE! Is that your daily driver?

Welcome to the site! Gotta love a Duster.

300 horse N/A is gonna be tough, but with the right matching of compression, cam, and headwork you should be able to get real close.

Mine is relatively close, but the bottle puts it closer to 400 with the flip of a switch.

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Official Cookie and Mater Tormentor.

The MSD BTM works if you have no other method of controlling the timing. However, the Buick ECM can control your timing for you, obviating the need for any aftermarket electronics. You can remove the mechanical and vacuum advance from the distributor, or for a clean installation, get a Lean Burn distributor. The sensor in a Mopar distributor is virtually identical to the one in a GM HEI ignition. Use a 7-pin ignition module instead of the 4-pin unit that forum members here use on non-computerized buildups.

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"Mad Scientist" Matt Cramer
'66 Dart - turbocharged 225
My blog - Mad Scientist Matt's Lair

Thanks for the welcome. Ya a duster is cool, at first I just wanted a V8 B or E body. But the duster came along and I took it and have grown to love it and would like to have another one if I could. At first I wanted a V8, easy power and lots of easy to find parts. Then I started to think "what if?". Can I get the power I would like to have to blow the average ricer in the weeds. But what really made to want to keep the six was when I got static from the locale mopar club when I said I was going to try and hot rod the motor. And now I seek to show them that a slant six could beat them and blow most V8's and imports in the weeds. At first NA was going to be my choice decision, but price and a higher level of difficulty edge me towards fuel injection and forced induction. And with what I've seen here it would be the more streetable way and can achieve high power levels. Plus the cool factor is nice as well as the satisfying look of awe on those who said it can't be done!

Welcome to the site. We will all be eager to help, and cheer you on. Keep in touch. Sam

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Doc, that is unquestionably kickass, but...






Oh, and Welcome dusterdougr! This really is the best car forum of any sort on ye olde interweb that I have ever been a member of. I'm sure that you will find yourself right at home here.

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64 Dart 170 /6

I was wondering about that single-reservoir master cylinder, too, but figured that this must be primarily a drag race car with a well-maintained brake system, so the drum brakes and single cylinder would work well enough for the application.

Also, it looks like a dual master might not fit (turbo in the way).

Steve

1966 Dodge Dart GT

I like Tom Drake's quote in his signiture:

"Nitrous cars are like old men on viagra. Once the bottle is empty, they're useless."

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'15 Chrysler 200S V6
'74 Duster 360, factory 4 speed car