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SVTPerformance's Chain of Restaurants
Pics and Videos Buffet
68 Fastback Restomod project thread
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<blockquote data-quote="biminiLX" data-source="post: 16114643" data-attributes="member: 7795"><p>Really man, it’s an absolute killer build and ever cooler with that 8 stack and Hot Rod coverage, huge props to you!</p><p>I just reread that link and peak was 62-6300rpm, so your shift points should be around 6500rpm. Really depends on your curve and how long it holds on after peak. Usually shifting 500rpm or so after peak gives best performance (shift recovery and area under curve) but in reality each engine is unique and you’ll just have to ask your builder and/or see what the performance shows at the track.</p><p>Really though, for street performance and knowing rpm is hard on parts, shifting around 6000 will be more than plenty on street and if using a conventional clutch, you’ll spin it a few hundred over the shift point on the tach.</p><p>I built an NA 427W with Livernois back 15yrs ago and then redid it twice for turbo use and the last version on engine dyno break in made 555hp at 5900 but held on with 550hp at 7000 due to running it NA with a wrong carb. Only dyno was for break in, but that 4” stroke on the street gives you great torque response on the street and a very fun torque curve.</p><p>Can’t wait to see your finished results!</p><p>-J</p></blockquote><p></p>
[QUOTE="biminiLX, post: 16114643, member: 7795"] Really man, it’s an absolute killer build and ever cooler with that 8 stack and Hot Rod coverage, huge props to you! I just reread that link and peak was 62-6300rpm, so your shift points should be around 6500rpm. Really depends on your curve and how long it holds on after peak. Usually shifting 500rpm or so after peak gives best performance (shift recovery and area under curve) but in reality each engine is unique and you’ll just have to ask your builder and/or see what the performance shows at the track. Really though, for street performance and knowing rpm is hard on parts, shifting around 6000 will be more than plenty on street and if using a conventional clutch, you’ll spin it a few hundred over the shift point on the tach. I built an NA 427W with Livernois back 15yrs ago and then redid it twice for turbo use and the last version on engine dyno break in made 555hp at 5900 but held on with 550hp at 7000 due to running it NA with a wrong carb. Only dyno was for break in, but that 4” stroke on the street gives you great torque response on the street and a very fun torque curve. Can’t wait to see your finished results! -J [/QUOTE]
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68 Fastback Restomod project thread
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