Bucktooth

I am going to build a 6.0L with 317 heads and cam, 1-3/4" headers. Will an F1-R be too big or will it work ok until i get a 408? Would F-1A or F1-C be a lot better blower over F1-R? I heard it may be more peaky power/boost. As long as the blower is RR will it fit both fbodys and vettes???
This car will be both street/strip.

Thanks!

Inspector12

iTrader: (29)

It will work. I don't think it is ideal for a 6.0, but it just depends on what are the long term goals for the car. I would recomend a D1 as they are easy to turn if you want to upgrade at a later date, but your car your choice.
GL!

Bucktooth

Would it greatly sacrifice over a F1-A or F1-c for less peaky power? Prochargers from a vette kit will work in an fbody right? They are both the same right?

Inspector12

iTrader: (29)

Yeah they are the same rotation head units. You will sacrifice quite a bit of low end if it is a street car. For a track only I would hit up an F series head unit. But that is just one opinion and well I am sure there are others that will disagree with me, but i am just judging by what the car is doing with the F1 and 346 right now etc...

helicoil

iTrader: (104)

I'm happy right now with a D1. What are your goals?

Bucktooth

I couldnt afford a new motor this year how i wanted it built, so i am getting a used 6.0L with cam.
So eventually I will have a fully built 4xxci with good heads. So i want to get my procharger setup for the future installed.
I realize its probably a little large for the current build, but just want to make sure its not going to suck compared to a F1-A or F1-C.
Maybe peaky power will help for a launch?
I drive my car quite a bit in the summer and race it as well.
For now I will probably run 9-11lbs and make 5xxrwhp on e85.
My guestimates

Inspector12

iTrader: (29)

D1 is what I would tell you with those ideas it will still work well on the larger motor later on just won't be ideal for a 400+ci motor but a lot of people run them on 408 and it works fine etc...
Jeff

BigRich954RR

iTrader: (1)

I ran a F1C on a 6 liter just fine heck i got a few pulleys for you if you need them to spin it a little slower. When i spun it slower i still had 10 psi at 6k rpms and about 2 psi at 2k

The F1R I think will be better for a track car. They flow a little more up top but takes a little longer to build boost. They like to slip the belt a little more to which sucks if you going to street it.

EPP

iTrader: (22)

The way I see it, it you have a 408 or smaller displacement with 4 bolt per cylinder heads, and you don't live at 6000 ft, the F-1R is not necessary and would only take more horsepower away from the engine to turn it. An F-1A on a 408 can make you 19 or so psi, the F-1C would make 21-22 psi or so. The dyno graph below is from an LS2/402,EPP blower cam, off the shelf AFR 225 heads and a ProCharger F-1A. Yes, we could of made this boost with a D-1SC, but we would of been working it much harder, which can create higher inlet air temps. Bob




http://www.exoticperformanceplus.com...Car.php?car=29
Link to this CTS-V

zssman

iTrader: (9)

Bob, on a drag radial 99% track car, would a f1r be workable with a 6.0 truck motor. With forged pistons, arp rod bolts. Just as a start till we get the new motor built. Hope this isn,t considered a thread jack since its related to the original thread. If so my apologys. Phil.

Bucktooth

No need for apologies.
I think i will pursue a F-1C build, thanks for the info guys.
Supposedly more street friendly and less peaky.

transamfreak01

iTrader: (8)

no way if youre driving it on the street i would not get an f1. the d1 has made over 700hp and youll never hook up on the street with that. the f1 is to big for what u want

Bucktooth

But i will hook up at the track .

It will hook at 60 probably fine.

wforty94

can you spin the F1A or F1C faster to make.. let's say 25psi?

EPP

iTrader: (22)

The F-1R may make 25 psi, dpending on your build. A smaller cube engine will make more boost than a larger displacement engine with the same combination. Bob

1INSANEGTO

iTrader: (13)

I am doing a F-1R on my 408 TH400 combo. Its a street/drag queen