WS6ICK2k

Hey Everyone,

Just trying to decide on a head unit my car (basically street car) that will only see the track a few times a year tell me what you voted for and why.


Thanks

+badss+

iTrader: (12)

is the motor stock 5.7? more info needed id say d1 on stock motor if built go for f1.

WS6ICK2k

I plan on ordering a short block so it will be boost friendly, most likely a 402. Car is also a M6.

+badss+

iTrader: (12)

then f1a all day...

phatasp

iTrader: (11)

I your already thinking about it, do it once and get it over with. F1

35thsscamaro02

Buy my d1 so I can get a f1! Hope this helps make your decision :-)

02LS1ram

iTrader: (17)

What are our goals with car? big hp? Then go with the f1 that way you wont have to work it as hard as the D1 would be. 600-700 hp Then run the D1

Bob@BruteSpeed

iTrader: (16)

Take a look at the dyno graph found inside this link. It is from an LS2/402 with an F-1A at only 12.4 psi of boost. We would not of seen this power with an D-1SC. The owner took it to another shop's dyno day and it made more power on their dyno. http://shop.brutespeed.com/Brute-Spe...d-Camshaft.htm Bob

The Alchemist

iTrader: (19)

You have to look at the big picture just like everyone was saying. On the street, a D1 making decent boost is hard to hook up sometimes, so stepping up to an F1? is also going to be even harder.
For a primarily street car, I say D1, as they are easier to come by used and will still make upwards of 700+ pretty easily with the right mods on the car. If you're looking for silly power, then F series all the way.

brians91formula

iTrader: (12)

Like everyone else said, depends on how much power you want to make. Keep in mind that the F1A is quite a bit louder than a D1SC.

fatmat80

Power is addicting as everyone hear can attest to.. My vote is for an F1 series blower.. Do it right the first time..Wish I would have taken my own advice.. But i have and still am having a lot of fun with the D1..

sscamaroburn02

iTrader: (14)

Still reading and learning alot about forced induction. How much effort does it take to switch out the D1 headunit over to F1 style?? Is it just a direct swap? I know you will need a better bracket to help with belt slippage but what parts are necessary. Thanks.

vmapper

iTrader: (8)

My vote is F-1A due to displacement

For the above^^ The brackets are the same, however, a F1-A head unit is thicker than a D-1SC.
(5/8" thicker if I recall)

Tirefire

iTrader: (1)

I went to an F1A and barely breaking in the motor with it. Big difference to me is the the amount of heat an F1A puts out, ALOT!!! If your intrested I have my D-1 with twins an other goodies for sale.

I'm sure the f1A overall is a lot better supercharger but if you don't intend to buy the supporting mods to fully max it out then the d1 will suite you just fine. I've learned the hard way e.g buying twice I'm going to have to step up to 100 lb + injectors and a 2 1/2 map when I finally decide to tune it. So what ever you do have a plan.

There's that line noone tells you about when you buy an f1a everything costs more. Clutches (twins), injectors, map sensors scan tools. That's just my opinion but I have found that going with an F1A was the easy part. It's the other **** you need to be concerned with.

+badss+

iTrader: (12)

lol so true im going to have to do the same stuff more injector and 2.5 map
and some better heads...

Bob@BruteSpeed

iTrader: (16)

Yes, it is a direct swap. Inlet and outlet sizes are identical, and it has the same volute diameter. The D-1SC has a 4.10/1 gear ratio and the F series has a 5.40/1 gear ratio, which means you don't run nearly as small of a pulley on the F series. Bob

WS6ICK2k

Thanks for the reply, How much louder is the F1A than the D1SC with the different gears. I have looked at tons of videos its just hard to get an idea of real life.

Bob@BruteSpeed

iTrader: (16)

You're welcome. The F-1A is quite a bit louder at idle. Once you're headed down the road, it isn't really any different. Bob

Z-28

Maybe these Q help out me and the OP.
I'm thinking of upgrading to an F1a from my D1. How much boost and HP does a F1a make compared to a D1-sc? I have a built motor 396, 9.5 compression, H/C/I, 1-7/8 headers and all supporting mods. 7.65 crank pully. Meth and 93 pump gas. I have max out my D1 and get about 15 to 17 lbs most of time with no filter. Mostly 15lbs. I shift at 6500. Just wondering how much more boost and HP I might be getting on a maxed out F1a, and does the power come in faster with the F1a? It is hard to hook on street now.

js2fst

iTrader: (12)

P-1 to a d-1 very little difference so f-1 is the way to go