troper

iTrader: (2)

Jason, check ou Dyers. He made me a set for my 575Sci's and everything fit perfect.

http://www.dyersblowers.com/187/index.html

JRider

iTrader: (1)

You may want to call DMPE in holland. He deals in TBS and has his own designs of blowers. His website is pretty serious into drag stuff. I'm no expert by any means.

Also check this out...some basics. Page 11 will give you some size data.

http://www.holley.com/data/TechServi...ech%20Info.pdf

offshorexcursion

iTrader: (5)

1271 Stage 5 Baby! Then double clutch and shift your 5 speed 7 times like Fast and Furious and you will have one sweet ride!

I agree with you Jason, its hard to figure out what to buy when every manufacture says they have the best supercharger, and there is no test data to prove it, just theories.

Seems like the 1071 is a little small (but would work) for you nicely built 598 and the 1471 (but would work) is a little big so IMO the 1271 is perfect. BUT, like you said, what Custom options should it have and why? Sorry don't know the answer to that part.

dyersblowers

Here's a link to our 575sci conversions to 871s.

Polished 871s are $3750.00 per engine.

http://www.dyersblowers.com/187/1676.html

Bill Dyer

Rookie

iTrader: (4)

And thank you for all the great information, knowledge and insight to this thread!

offshorexcursion

iTrader: (5)

So 1071, 1271, or 1471 ? How do you choose?

And what options done to the blower?

Still a little confused on these

Jason3603

Engines will be 8.5:1 compression ratio and will be running a chiller.

Jason3603

After several months and a lot of over thinking this. I come to decision. I'm going to run a BDS 16-71 hi-helix billet rotor standard discharge. I was hoping to be able to use a scientific way of deciding but in the end I'm using opinions of the experts in the industry. I hope I made a good choice. We will have to wait and see.