66-P51FB said:I am starting to build my 66 fastback as a streetable fun (350-400hp) car to drive. On the list so far is a set of Grnada brakes, t-5, Explorer 8.8 rear end with 3.73's and disc brakes (need some help on spec to narrow it to), and a 289. Any input would be appreciated especially in cam selection and heads.
That's what I'm thinking. My 5.0 comes out to 362hp/346tq on EA3.0, with SAE temp. & humidity selected, and it's basically identical to yours, but with a TFS cam (.499/.510lift, 221/2225dur 112LSA), and PerformerPRM intake.redhotcomet said:I don't think it would be that hard to get 400 FWHP out of a 289. My 302 with 9.5:1 comp, ported '70 351W heads, HO cam, headers and a 4 bbl will do around 340 FWHP. Now, granted, I did get that number from engine analyzer (which is reputed to be fairly accurate), but with aluminum heads, a bump in compression, a bigger cam, and a better intake, it should do around 400.
I disagee. A stout single plane, like the VicJr. WILL kill lowend power. OTOH, the Torker has almost dual-plane like lowend; about 10lb/ft loss over a PerfRPM. It's a 289, face it, it won't be a torque monster, and you're trying to hit 400hp on the street. Sacrifices must be made, and if you have to trade 10lb/ft on the low end for 25hp, then so be it. I've seen people running even more drastic combos on the street, and murdering low-end in their search of the almighty HP, but 10lb/ft is peanuts in comparison to what they give up, with huge head-flow numbers and a big single plane. You could make up the small SOTP difference in the lowend with a set of 3.73 gears, which, come to think of it, may be nessecary to keep from lugging it in 5th anyway.tylerrocks said:I agree with 5.0ina66 But for street I would definatly stick with a dualplane intake as they will usually outperform the singles in low rpm situations (street) and in a intake shootout article I read a while back (forgot which mag) the Edelbrock RPM air-gap intake was only a few (less than 5) hp less than the victor seires at high RPMs
400 hp out of a 289 is not a pushover easy task but it is by no means impossible
Tyler
5.0ina66 said:I disagee. A stout single plane, like the VicJr. WILL kill lowend power. OTOH, the Torker has almost dual-plane like lowend; about 10lb/ft loss over a PerfRPM. It's a 289, face it, it won't be a torque monster, and you're trying to hit 400hp on the street. Sacrifices must be made, and if you have to trade 10lb/ft on the low end for 25hp, then so be it. I've seen people running even more drastic combos on the street, and murdering low-end in their search of the almighty HP, but 10lb/ft is peanuts in comparison to what they give up, with huge head-flow numbers and a big single plane. You could make up the small SOTP difference in the lowend with a set of 3.73 gears, which, come to think of it, may be nessecary to keep from lugging it in 5th anyway.
JMO
--Kyle
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