f1-r, too big for a gt?
Joined: Jan 2011
Posts: 3
From: tx
This is a 4.6 based modular motor. A 331 dart block motor with the proper cam and head and intake will make 400rwhp no problem. I have a friend that has a 347 stroker with not even all that aggressive cam/head package and his motor made 420hp on an engine dyno. Big bore pushrod motors are a lot easier to make n/a hp than ohc motors.
4.6L Section Moderator
Joined: Nov 2007
Posts: 10,286
From: South Central PA
Stroking a mod motor does not do much unless you're going to run a turbo. And stroking a blower car that's going to be using an f1r is not the best choice.
But we're not getting into this right now. Our stroke in the 4.6 is long enough and I'll leave it at that.
But we're not getting into this right now. Our stroke in the 4.6 is long enough and I'll leave it at that.
Resident Ford Troll
Joined: Jul 2006
Posts: 6,723
From: Delaware
This is not true, and I think Ox would be the first to tell you that. I believe I've talked to Ox about this and he put his Novi 2000RR in the same category as a D1SC, or maybe in between the that blower and blowers like the F1a and the YSI, but I'm pretty sure he called those two a class above the Novi. When you look at Procharger's spec sheet, the F1R is a much different blower than the F1a. It is definitely a much more powerful blower than what Ox had been running. The fact that Procharger recommends you have an engine capable of 375-550hp NA to drive this blower leads me to believe this guy is going to have some problems getting the car to idle correctly among other things. And the blower having a max flow of 2000CFM and boost of 38psi tells me it outclasses every part of a 2V engine, by quite a bit.
Dave Guy tunes a lot of NMRA guy's car I know. One dude had a centri on a SBF (which can easily flow more than a 2v) and he decided on the F1 blower.. The car made less power at the same boost. Took it off and went back to the smaller blower. Too big is sometimes not a good thing. It will make tremendous power no doubt...but just throwing that out there
Joined: Jan 2011
Posts: 3
From: tx
We'll see. I think it will work pretty good. It's alot of small blocks out their running bigger blowers (stroked) with small blocks. Without the blower i'm making about 425 hp. With the blower i want to be around 650 to 700. Once i get everything lined out, should be a low 9 high 8 sec car. But who knows! I got a 408 ready to be built. Just want to get it out of the small block.
3rd Gear Member
Joined: Sep 2008
Posts: 599
From: Bel Air, MD
This guy knows whats up.
Dave Guy tunes a lot of NMRA guy's car I know. One dude had a centri on a SBF (which can easily flow more than a 2v) and he decided on the F1 blower.. The car made less power at the same boost. Took it off and went back to the smaller blower. Too big is sometimes not a good thing. It will make tremendous power no doubt...but just throwing that out there
Dave Guy tunes a lot of NMRA guy's car I know. One dude had a centri on a SBF (which can easily flow more than a 2v) and he decided on the F1 blower.. The car made less power at the same boost. Took it off and went back to the smaller blower. Too big is sometimes not a good thing. It will make tremendous power no doubt...but just throwing that out there
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