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  #16 (permalink)  
Old 08-09-2012, 07:17 AM
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A 13 second '60s Mustang with a 289 is no punk. While a very good "little' engine, 289 is just that. Little. It needs to rev hard and be gared "stiff" to make good 1/4 mile passes, even high 13s. A 2,200 converter is NOT going to make it a good "launcher". The engine simply doesn't make enough low-end torque to support that, AND got to the 7,000-plus it will need to make more than 300-325 HP.

289's biggest "advantage" is the ability to rev "to the moon" and live. The solid cam will allow it to go beyond 6,500 without problems. The rod/stroke ratio and short stroke make it very tough when revved "hard". I highlky recomend you pursue that aspect if you're committed to 289.

For the better performing streeters, consider a 331 or 347 (I like the former more) "stroker" kit. It fits the 289 block just as it does the 302. The 331 offers better internal geometry, though it "gives up" a little displacement.

FWIW

Jim

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  #17 (permalink)  
Old 08-09-2012, 08:02 AM
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zildjian4life218 question,"Why are you recommending a solid cam"
because the 289 is a small engine and needs to rev to make 300 hp.hydraulic flat tappet cams do not perform as well
a solid roller will have very good street manners and a very wide powerband.


zildjian4life218 ? my question to you,why would you recommend a hydraulis flat tappet cam to anyone serious about make good power to cubes in any application?
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  #18 (permalink)  
Old 08-09-2012, 08:07 AM
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after reading
Mr. P-Body s post,I may have been a little too conservative. What he said I totally agree with.7k plus rpm might be the answer?
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  #19 (permalink)  
Old 08-09-2012, 08:13 AM
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Quote:
Originally Posted by vinniekq2 View Post
zildjian4life218 question,"Why are you recommending a solid cam"
because the 289 is a small engine and needs to rev to make 300 hp.hydraulic flat tappet cams do not perform as well
a solid roller will have very good street manners and a very wide powerband.


zildjian4life218 ? my question to you,why would you recommend a hydraulis flat tappet cam to anyone serious about make good power to cubes in any application?
Because the op said he is okay with 13s. It won't take much more than 300 hp to do that.
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  #20 (permalink)  
Old 08-09-2012, 08:25 AM
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The way I understood the OP's original post is looking to get a good matching combo for the street that will be better and reliable. Sure a 331 or 347 would do it much better but at the added cost maybe that's not what the OP was looking at getting into. If it were me I would do as I originally said and just run a set of factory gt40 heads and a roller cam. It doesn't sound like your too serious into the racing and favor street driving. Which ever you decide good luck to ya.
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Old 08-09-2012, 08:34 AM
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Keep in mind that it'll take less cam and port size to turn 7k with a 289 than with a 350 or a 302 for that matter. Something in the 270 advertized range will be fun to drive and easy on parts. High 13s with a 289 might be iffy, but if your serious about the 70/30 thing be careful not to build a really fast turd.
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  #22 (permalink)  
Old 08-09-2012, 11:33 AM
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If you have forged internals already then you should definitely go forced induction. Check this out Paxton 1001864SL Paxton Superchargers
It would be perfect for this application. You dont have to push crazy boost of anything, a modest 5lbs would be good. And since you don't have heads yet, just find some that give you about an 8.5:1 compression ratio and you will be more than happy with your car.
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Old 08-09-2012, 11:48 AM
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We built 289s like they were "goin outta style" in the early '70s. I've never seen a forged 289 crank. I'm sure SOMEBODY must have made one, but not Ford, at least to my knowledge. My brother had a '65 "K" Code with the 271 HP 289, "virgin". It was a nodular crank. Ford's connecting rods, on the otherhand, are "art". 289 rods are popular in the "stock class" crowd for cheating up a 302.

The reason I even mentioned the strokers, was because torque is more important to a street engine than high-end hoirsepower. 289s are "torque-impaierd"... Simply another "option".

When in high school (1971), Kenny Baker bought a '65 "K" Code that had the Paxton. Emil (the guy he bought it from) claimed it was "original:" that way. I have no data to conf0rm that. It ran 11.80s in 1971... Once he wore the blower out, it wouldn't get out of its own way!

Jim
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Old 08-09-2012, 01:52 PM
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I think boost would be perfect because unless I get down on it it's not killin gas like a high compression motor would be if I tried to drive it down the road. It would probably drive like balls until I hit some boost but with the broad rom range this short stroke would love it (revs to the moon!) basically with this little motor it's pointless to go out here and find the worlds best flowing heads period and spend all that money going through more expensive engine parts that I might see minimal gains with I could spend a little more money and increase my hp by 25-50%. I was talking to this engine builder around town and he said the 289s love boost that's why Shelby used them, they revved higher than the 351s with the lighter rotating assembly. I think instead of spending lots of money on top notch heads and am for a little 289 it would be more efficient to get a decent set of heads and cam that match powerbands and what not and just save what's left towards a Paxton????
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  #25 (permalink)  
Old 08-09-2012, 02:35 PM
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You'd love it. And remeber superchargers don't have lag so the off idle power will be a thousand times better than it is without the blower
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Old 08-09-2012, 07:12 PM
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Prior to 1968, 289 was the "big" small block. 351 didn't arrive until late '68. Shelby was out of the Mustang "business" by then, Ford was producing the GTs. He chose 289 because some schmuck at Chevy told him to take a hike when the Cobra project was trying to gear up. He wanted 327 for obvious reasons. Instead, he ended up "sticking it" to Chevy (ZL-1 never quite became the Cobra-beater it was supposed to be).

By today's standards, Paxton is pretty old. A reliable design, true. But Pro-Charger seems to be the modern belt-driven blower of choice for streeters. At least look into it. I've seen some pretty impressive performance from them and zero reliability issues. Much better than Vortec or Paxton, IMO. It's a belt-driven turbine, giving the "best of both worlds". Little (if any) parasitic loss and no "lag".

If you go for a "blower build", you really should consult with a cam grinder and get a blower-specific grind that will still provide you the low-speed drivability you need. You may not find exactly what you need in a catelog. "Custom" grinds are no big deal, and if you leave the designing to the cam engineers, it WILL work the way they say it will. Some of the "spookiness" of custom grinds are the people calling out the specs.

A word of caution. It's a common misconception that a blower motor doesn't "need" really good heads. It is, afterall, pressurized. Right? WRONG. While the heads don't need to flow "big numbers" a supercharged or turbocharged engine needs as "clean" a flow path as possible. Any obstructions or variances cause turbulence, which in turn heats the mixture. This will rob some power and increase the potential for detonation. Don't scrimp on heads...

Go get 'em!

Jim
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  #27 (permalink)  
Old 08-09-2012, 07:18 PM
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I was just using the paxton blower as an example. The brand is up to the person buying it of course.
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Old 08-09-2012, 09:20 PM
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Oh yeah I'm not limiting myself to paxtOn I know that there not reliable over 8-12 pounds of boost at most. What would be the best thing to do get some good heads and not go crazy on a cam right now since I'll have to get a custom grind blower cam anyways. I have a hei distributor right now will I have to change anything else for it though? I'm in the process of putting a better ring and pinion in and getting a trans cooler put on. I know right off I'm getting heads, then a decent cam to hold me over, then get the supercharger, and a new carb. Will it be too hard to time and time it with an hei and a carb??
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Old 08-09-2012, 09:57 PM
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Try this site...

SBFTECH.com Experienced Small Block Ford Tech - Index

That's all I'm going to say...
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Old 08-09-2012, 10:07 PM
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Be sure to keep compression low. 8.5:1 or under.
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