|08-09-2012 10:29 PM|
I like the idea of a blower but i guess i like the Roots type blowers the best... and you should be able to find one for your 289.
We raced a '60 Ford with a 289 K-code on dirt tracks in '70 and '71. Once we started spinning that engine we started running really well. One night, with a 4.11 gear on a 1/4 mile track, the 2/3 shift linkage came off so my buddy grabbed 1st gear... and went from the back to the front to finish second in the main (24 car field)... never missed a lick.
Great engine...good luck.
|08-09-2012 10:22 PM|
Do not go over .500 of lift or 268 / 223 duration . It will be the worst driving car and loose street manners. Some people will go .650 lift but talk to a machine shop and ask the prfessional about a 302 with a .650 lift cam. All kinds are out there. Some people think huge cams, 4000 stalls and winding to 6500 is cool. Not my cup of tea, my vehicle needs to be serviceable and last.
You can do anything with enough money. My neighboor finished a old rat pickup flat bed with a transplanted 500 v8 cadilac with FWD from a late 70's eldorado. It had twin unshrouded , stripped painted, puller electric fans, no grill , and looked like a twin prop airplane getting ready to take off from a stoplight. A fat cam and spooled front transaxle, made it a unusual beast that was driven up from arizona. It was lowered , chopped, had suicide pop doors, a tailgate ramp system. Hauled with all torque power, and that is a incredible feeling. Not that winding scary feeling like how far is he gonna wind it. Whatever..
Superchargers are much fun and the way to make a 302 go. My 305 GM is E forced with a eaton 122, and what a difference. They work. You can flip the log exh manifolds and turbo charge it cheap. NO2 is not allowed on the street and not a option for a useable power adder, unless you race it only. Either way you can make a good driver over 1 hp / per inch easy. My 305 with 6 psi at 5200rpm is around 350 fwhp. Pretty hot for a 305, anyone who disagrees is missing the point of that type of build. A 305 in 1985 made 140hp . To add 210 hp is a hot 305.
|08-09-2012 10:07 PM|
|bigdog7373||Be sure to keep compression low. 8.5:1 or under.|
|08-09-2012 09:57 PM|
Try this site...
SBFTECH.com Experienced Small Block Ford Tech - Index
That's all I'm going to say...
|08-09-2012 09:20 PM|
|Hookedup12||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??|
|08-09-2012 07:18 PM|
|bigdog7373||I was just using the paxton blower as an example. The brand is up to the person buying it of course.|
|08-09-2012 07:12 PM|
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!
|08-09-2012 02:35 PM|
|bigdog7373||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|
|08-09-2012 01:52 PM|
|Hookedup12||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????|
|08-09-2012 11:48 AM|
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!
|08-09-2012 11:33 AM|
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.
|08-09-2012 08:34 AM|
|hpete||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.|
|08-09-2012 08:25 AM|
|zildjian4life218||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.|
|08-09-2012 08:13 AM|
|08-09-2012 08:07 AM|
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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