SERB Z06

iTrader: (6)

Well I'm going to be sending in my F1a to Procharger very soon here and I'm thinking about just paying the $500 for the F1c upgrade while its there. I know the only change is the volute, my questions are:

1) Is it worth it?

2) If answer to #1 is yes, will it still be worth it if I am running an 8 rib belt setup? I have heard to not go past the F1a unless I can do to 10 rib or cog. Keep in mind I'm doing this with a Corvette so we have much better bracket options than the F-bod guys out there do (no offense)

I8UR4RD

iTrader: (16)

id wait and go f1-x

SERB Z06

iTrader: (6)

I already have an F1A....that's like saying I shouldn't mod my C5Z and just wait and get a C6 ZR1

jt76

iTrader: (10)

What cubic inches are you going with? What are your goals? My friend had a D1Sc on the 370 in his firehawk, then upgraded to the F1C... it FELT faster with the D1 but the top end on the F1C was nuts... i think the F1A would be the perfect blower on most cars..

Detoxx03

iTrader: (14)

Depends on your goals. If the A is peaking early then get the C.

SERB Z06

iTrader: (6)

347

Goals are 900-1000 highway roll monster

Detoxx03

iTrader: (14)

If its only $500 I would definitely get the F1C. What are you making for power now?

SERB Z06

iTrader: (6)

Was making 750 with a T-trim stock motor...changing a lot now

The Alchemist

iTrader: (19)

There's always Steve Morris if you want to have the volute ported. I know he has done some amazing things with Prochargers in terms of modifying them, so I'd contact him and see what he says. Couldn't hurt to make a phone call.

Bob@BruteSpeed

iTrader: (16)

On a 347 the F-1A should give you all the boost four bolt heads can handle, unless you're running at higher elevation. You should be able to see 20 psi with an F-1A on a 347 at 0-1500 ft elevation, and it doesn't take as much hp to turn it as an F-1C will. Bob

I8UR4RD

iTrader: (16)

i just figured if your going through the trouble of getting a 10 or 12 rib or cog setup and are going to have another 500 to throw at a blower, then why not go ahead and step up to the X. thats definitely a mod. supposedly its easier to turn than the F1-R you were considering. buy a big pulley and keep the boost down, i didnt realize you were on a 347. i highly doubt youll outgrow the A

SERB Z06

iTrader: (6)

Thank you for the advice. Do you have any experience over spinning the F1A?

Bob@BruteSpeed

iTrader: (16)

You're welcome. We were overspinning mine when we were driving through the converter, but I don't recommend it. Bob

I8UR4RD

iTrader: (16)

ill be spinning mine at 76k

DopeFedZ

iTrader: (34)

Can a D1 make 900+? My buddy is making about 840 with his D1 and a 347

Bob@BruteSpeed

iTrader: (16)

I've never seen it happen. Bob

The Alchemist

iTrader: (19)

Can it, maybe... with a higher compression motor, m6 with a light drivetrain, lots of meth so you can push the timing... will it last, I doubt it. 840 is a healthy number.

Blackpanther99

iTrader: (8)

Agreed^^

Detoxx03

iTrader: (14)

In terms of efficiency is the F1A more efficient than the F1C? I know its setup dependent but want to grab one of them at some point on a built 376 M6 with either Mast small bore LS3 heads or the new trick flow 255 heads. More power its makes the better plus less heat.