by Jonathan » Thu Oct 12, 2006 2:24 pm
Centrifugals are the worst thing you could ever put on a street car. On the track, sure, simply because the car never sees anything other than redline. If you're using a race prepped auto with a 5,000 stall converter on the street, more power to ya. Otherwise, look elsewhere. The benefit? Centris are cheap. That's the main reason they're so popular.
MM&FF did a great test on this, actually, and it'll give you a great visual on their characteristics.
http://www.turbochargedpower.com/magazine_articles.htm
http://www.kennebell.net/media/articles ... Hpart1.pdf
Same test, just posted both to prove that it wasn't just marketing on either's behalf. Vortech, of course, doesn't have it on their site. If there were a loser in that test, theirs would definately be it, I'm sure they didn't want to show that one off. But all centris perform the same regardless, procharger included, it gives a good visual on all their characteristics regardless of what type of motor it's on.
Twin screws are my favs for street use. More efficient than roots, can run more boost on pump gas, make full power by around 2000 RPM (as does a roots blower). It feels just like you have a big block under the hood, torque on tap when you want it, full boost available pretty much everywhere. It amounts to tons of fun on the street. They also don't lose boost as you get to redline. Add easy maintenance and a kit that's put together well and you have a winner.
HP has a nice turbo kit as well, and it could be used with a carburetor if you wanted to.
I'd go 351 roller block over 302 given the choice, and why not? You're starting from scratch anyway. Much stronger block, more displacement potential, as well as fewer issues at that displacement. The 347 strokers still have some issues with oil control, while the stroker kits have been improved and are dependant upon your builder, I'd rather just trust a 351 that's been proven since the 1960s. You can stroke a 351 out to 427 if you want to as well, and the 351 with it's taller deck isn't as fickle when stroked and poked
Of course, with all that power you'd better be thinking about getting a Tremec TKO and a built axle to take it. The stock T5 and axle doesn't like 500+ rwhp all that much haha
Centrifugals are the worst thing you could ever put on a street car. On the track, sure, simply because the car never sees anything other than redline. If you're using a race prepped auto with a 5,000 stall converter on the street, more power to ya. Otherwise, look elsewhere. The benefit? Centris are cheap. That's the main reason they're so popular.
MM&FF did a great test on this, actually, and it'll give you a great visual on their characteristics.
[url]http://www.turbochargedpower.com/magazine_articles.htm[/url]
[url]http://www.kennebell.net/media/articles/BOOSTBASHpart1.pdf[/url]
Same test, just posted both to prove that it wasn't just marketing on either's behalf. Vortech, of course, doesn't have it on their site. If there were a loser in that test, theirs would definately be it, I'm sure they didn't want to show that one off. But all centris perform the same regardless, procharger included, it gives a good visual on all their characteristics regardless of what type of motor it's on.
Twin screws are my favs for street use. More efficient than roots, can run more boost on pump gas, make full power by around 2000 RPM (as does a roots blower). It feels just like you have a big block under the hood, torque on tap when you want it, full boost available pretty much everywhere. It amounts to tons of fun on the street. They also don't lose boost as you get to redline. Add easy maintenance and a kit that's put together well and you have a winner.
HP has a nice turbo kit as well, and it could be used with a carburetor if you wanted to.
I'd go 351 roller block over 302 given the choice, and why not? You're starting from scratch anyway. Much stronger block, more displacement potential, as well as fewer issues at that displacement. The 347 strokers still have some issues with oil control, while the stroker kits have been improved and are dependant upon your builder, I'd rather just trust a 351 that's been proven since the 1960s. You can stroke a 351 out to 427 if you want to as well, and the 351 with it's taller deck isn't as fickle when stroked and poked ;)
Of course, with all that power you'd better be thinking about getting a Tremec TKO and a built axle to take it. The stock T5 and axle doesn't like 500+ rwhp all that much haha