D1 Procharged 347 Build
No doubt. That thing would have power everywhere you could possibly use it. The D1 was explosive in the 4-5k range so a 72 cubic inch bigger motor, better heads, through an auto would be insane. I'm looking forward to your build whenever you decide on a final setup.
Launching!
Joined: Dec 2012
Posts: 228
Likes: 2
I don't like how the D1 and even the F1a style blowers run out of steam up top though. The mid range is nutty on my D1 427ci setup but it just feels kind of weird to have it run out power so quick when it revs. I don't think I've seen any D or F1a/c rev on a larger motor to >6500rpm without peaking out far too early (like 6k). Only ones that seem to rev higher are the smaller ci 376 setups. If was doing again i'd go with f1a94 probably or go with smaller displacement.
Thread Starter
Joined: Aug 2004
Posts: 11,258
Likes: 146
From: Pace, FL
The D1 is too small for a 427 to rev out. The F1A-94 would probably be able to do work if you pulley it to rev to 7k. But you need an even larger blower to not run out of steam. And that's saying something because American Racing's 5th Gen Camaro ran what a 7.84@176 with that blower? Something like a YSi or F1R would fit the 427 better.
For example, on the 416 I'm envisioning, I'm thinking a 8.65" crank pulley with a 3.55" head pulley would get me max blower RPM by 6200. Or I could do a 3.85" and run it out to 6500. Of course, that's assuming the CFM is there to support power at 6500. I doubt it is on a 416. So pulley it down means more chance of belt slip, but it also will be going hard in the midrange. That means I can run a pretty mild stall 3400-3600 triple disk and have a lot of fun on the street.
For example, on the 416 I'm envisioning, I'm thinking a 8.65" crank pulley with a 3.55" head pulley would get me max blower RPM by 6200. Or I could do a 3.85" and run it out to 6500. Of course, that's assuming the CFM is there to support power at 6500. I doubt it is on a 416. So pulley it down means more chance of belt slip, but it also will be going hard in the midrange. That means I can run a pretty mild stall 3400-3600 triple disk and have a lot of fun on the street.
