blower is just awsome!! the little i have driven it around its one hell of a rush! it goes tomarow morning to get tuned so ill post some numbers, but i would greatly hope its more than 500!

 

Lol, the F1A should make 500hp without a motor hooked up to it.

 

im only expecting 500 whp, my P1sc made 472 before it poo'd out on the dyno during tuning. so a 20 plus whp gain wouldnt be too shabby!

 

You would get that from a d1 no prob...honestly if you have the motor to support it you should be at 600hp mark with out even trying with an f1...

 

What pulleys are you running? I always like hearing what similar setups to mine put down! Seems like there arent many lt1s with f1a's.

 

8:1, 4inch pulley 12 rib and it made 546 not even trying, and you know how they say a walbro 255 is good to 550rwhp well they are right 1st baby pull the car made 450rwhp@4500rpm so we are ordering 80lb high impendence injectors and im installing my 2nd pump, tuner (TJ @ baker engineering) feels it will breeze past 600 and make in the 650-700rwhp range. im excited because even though we pulled timing out and tuned it down to 530@5400 it feels like a rocket ship!! should also add car is now running speed density and a 2 bar map.

 

The F1A really moves some CFM. I think procharger is kind of keeping it quiet about the new impellor design. Its a work of art. When everybody thinks F1A they think its too big for the street. Oh well lets keep it our little secret.

 

i bought the F1a because i seen video of it on your car 97pilot... but i now have to get that 2nd pump installed and get some bigger injectors. i guess siemens has some new 80# high impendence injectors, they are tall but can i make them fit?

 

How about some pics?!

 

The Siemens 80's are the same size as there other ones. I already have them. I swapped them in for the Siemens 60's. No issues.

Ken R.

 

How much boost are you making with that 4"? I was around 13psi with the 4.25 and now about 17psi with the 3.40

 

im making close to 19psi at 6400rpm.

the siemens 80's i seen on racetronix look like the skinny long ones.

 

What injectors are you ditching for the 80's? Single intank and 60's will support 600rwhp no problem... it has been done hundreds of times... probably more than that. Twin's and 80's will be overkill for your power output, but more is better than less

 

i have 52's and i will be well past 600rwhp. my 546 is with no fuel/spark tuning, that was my base pull number. when my car hits 5400 rpm my fuel pump falls to 40psi of fuel pressure and my fuel curve leans out. my base fuel pressure is set to 65lbs in an attempt to make the injectors not run at way over 100% duty cycle. my car has a solid 100-150 rwhp left in it through tuning and getting it past 5500rpm and if i was to pulley down to my 3.4 pulley i honestly dont think the 80's would be enough, but i honestly think 650-700rwhp will be enough for me

 

Do you have the hotwire kit for the single pump? Hotwire/single 255 + 60# will do well, and the 80# with twin intanks should cover 900-1000rwhp (I don't know if you will get there with the F1A. Either way, keep us posted!