EPP

iTrader: (22)

The D-1SC and the F-1A use the same bracket, and both have the same inlet size. Bob

lablackbeast

iTrader: (5)

ok will let you know asap ..... can you make a camaro kit f1a with 8rib fit a truck...??

EPP

iTrader: (22)

I doubt it would work, but the newer transplant kit has been used in several trucks. Bob



http://www.procharger.com/pdf/SERPENTINE_LSx.pdf Dimensions

LS69TA

iTrader: (30)

From what I have read, you'll need a cam that will bleed off enough boost to let the stock short block live for any amount of time. I was looking at a big cam with lots of duration and a 110lsa and a 5" pulley I think to keep the boost down. For a F1 you will have a very limited lifespan on a completely stock motor..if you plan on reving it past 3000rpms or so.

white01ss

iTrader: (37)

The proper way is to find the largest pulley you can find then put an inlet restrictor plate on the inlet. Also, a smaller filter could probably reduce boost.

Z-28

I've wonderd the same thing. No one ever has a direct answer but best I can tell the F1a puts out about 5 or 6 more psi than the D1 and that would be about 75 hp or so. It would be nice if someone could dyno a D1 maxed out then put a maxed out F1a and see the HP and boost difference. In a built motor with supporting mods. Each motor combo may be a little different but it would give us good idea of differences.

js2fst

iTrader: (12)

I think a p-1 would be close too the d-1 they all are close

Stelth

Well after replacing my old D1SC today with a New F1A there was hardly in change in power or boost

I suspect i have an issue somewhere starrting with the front mount intercooler.

I will log boost before the intercooler to see what i am getting there,


416ci , ported LS3 heads , GT7 LPE cam ,large high flow exhaust , 4L80E 3000rpm Circle D

Both blowers i believe where close to max RPM.

Dyno Dynamics machine

D1-SC - Pulley combo - 3.4 blower , 7.5 crank (K080545) = 620 HP @ 16 psi (6500)


F1A - Pulley combo - 3.9 blower , 7.5 crank (K080550) = 635 HP @ 17 psi (6500)


Anyone out there running a F1A with this pulley combo and engine ?
Interested to found out what sort of boost they are getting .

cheers

white01ss

iTrader: (37)

Sounds like your at the limit of what an 8-rib can support. From what I've read on here:

D1 w/filter - 625-690 rwhp
D1 w/o filter - 725-808 rwhp
F1A w/filter - 700-775 rwhp
F1A w/o filter - 800-950 rwhp

I think the inlet restriction can cause a lot of drag from the blower then the belt starts to let go. Once that belt starts slipping it's all over. Try putting some VHT or other sticky stuff on the belt and see what it does.

I remember one thread that went from an 8-rib to a 50mm cog and picked up like 150. Some of the Corvette guys run a custom 8" crank pulley so they can run a larger blower pulley that helps with belt slip. Unfortunately I haven't seen such a pulley made to fit the F-body balancer.

Stelth

Ok, I don't suspect belt slip is the big issue here ,
I mean maybe a pound or so slip if that especially going 1/2 bigger on the blower ,

I am not running any thing on the back of the F1A so no restriction there ,

So according to the above ruff HP figures I am down 200hp and this is with a larger 7.5 inch crank pulley (GTO kit comes with 7 inch )

Has anyone else maxed a F1A on there combo ?

Cheers

I8UR4RD

iTrader: (16)

im going to max mine out, however wont be done anytime soon. another guy on here is making 650 on a mustang dyno, however it is spinning on the dnyo, but runs 10.70's with a 1.9 60 foot at 3800_ lbs. lol. traps close to 140.

Stelth

Trap speed is good !

Would love to know more about this car and pulley combo,

Any idea what he is called or point me in the right direction to find him

Cheers

Stelth

As i have posted on the other F1A threads, I have solved my problem,

After running a test i learnt that my current intercooler is a massive restriction with my combination.

24 psi in 16 psi out.

Thats probably where my power has gone.

cheers

white01ss

iTrader: (37)

Could you provide some details of your current intercooler setup and what you're going to try next?

eb02z06

iTrader: (18)

Maxed out F1A on a 402



It's a great lttle blower, my guess is that it's 50-75rwhp better than a D1SC.

Stelth

Its a 1000hp custom 600 x 300 X 100

I am looking at a custom built blower specific cooler at this stage .

cheers

Z-28

I know u got 24 psi in 16 psi out. buy sounds like u got a good cooler. Do u know what others have before and after their coolers? All coolers probably have some psi drop before and after cooler.

Stelth

Yes , the cooler is good and works but i am trying to exceed its HP rating .

But more so the fact that it is actually a turbo cooler rather then a blower one.

I believe the difference in the two is that blower coolers need to have shorter tubes otherwise the pressure drop is too high.

johnson3012

Which is more suitable for a ls1

NnOoSsSs

iTrader: (1)

I was planning on just buying a f1a for my stock 370....