F1a or D1sc
F1a or D1sc My friend wants to know if you would prefer an F1a or D1sc on a street car with a built A4, built 9.3:1 347 shooting for 600-650 rwhp. My friend is aware neither will be maxxed out but he really likes the sound of a loud blower and race bypass but is concerned if 600-650 rwhp will be out of efficiency on a 347 with an F1a or if either will be a fine option 
Which would you pick!?
Which would you pick!?
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I think a D1 would get there no problem, but the F1 is a bad ****...It all depends if he's going "bigger" in the future and wants more. We all want more so tell em to just go with the F1a lol oh and it sounds like a dam F16 which is a plus
he doesnt want much more, its a pure street car and 600-650 is about the traction limit for the street. I am just wondering if the D1sc will outperform the f1a at this power boost level or if they should perform roughly the same.
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yea, i'm positive the d1sc will fit the bill, however if this goal is also in the efficiency zone of an f1a, mise well go that route for the cool factor right? Only reason my friend wont get the F1a is if it will be a slug in this set-up.
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I have run the F1A pretty slow (7.25/4.5 pulley) and its no slouch.
My main complaint withe the F1A is the noise, but thats not a problem obviously for your friend
IMO just for the resale aspect if you are buying a new kit I would probably do the F1A if it wasnt a huge step up in price from the D1SC. While the big blower slowed down wont be as efficient as the smaller blower at that HP level it most likely wont even be noticeable. Not to mention the F1A will give you a little room to grow, the F1A isnt a huge jump from the D1SC, but for me it was worth a couple tenths and a few mph over the D1SC so for me it was worth it since thats all I wanted.
But OTOH I wouldnt turn down a good deal on a D1SC setup either..
My main complaint withe the F1A is the noise, but thats not a problem obviously for your friend
IMO just for the resale aspect if you are buying a new kit I would probably do the F1A if it wasnt a huge step up in price from the D1SC. While the big blower slowed down wont be as efficient as the smaller blower at that HP level it most likely wont even be noticeable. Not to mention the F1A will give you a little room to grow, the F1A isnt a huge jump from the D1SC, but for me it was worth a couple tenths and a few mph over the D1SC so for me it was worth it since thats all I wanted.
But OTOH I wouldnt turn down a good deal on a D1SC setup either..
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I have run the F1A pretty slow (7.25/4.5 pulley) and its no slouch.
My main complaint withe the F1A is the noise, but thats not a problem obviously for your friend
IMO just for the resale aspect if you are buying a new kit I would probably do the F1A if it wasnt a huge step up in price from the D1SC. While the big blower slowed down wont be as efficient as the smaller blower at that HP level it most likely wont even be noticeable. Not to mention the F1A will give you a little room to grow, the F1A isnt a huge jump from the D1SC, but for me it was worth a couple tenths and a few mph over the D1SC so for me it was worth it since thats all I wanted.
But OTOH I wouldnt turn down a good deal on a D1SC setup either..
My main complaint withe the F1A is the noise, but thats not a problem obviously for your friend
IMO just for the resale aspect if you are buying a new kit I would probably do the F1A if it wasnt a huge step up in price from the D1SC. While the big blower slowed down wont be as efficient as the smaller blower at that HP level it most likely wont even be noticeable. Not to mention the F1A will give you a little room to grow, the F1A isnt a huge jump from the D1SC, but for me it was worth a couple tenths and a few mph over the D1SC so for me it was worth it since thats all I wanted.
But OTOH I wouldnt turn down a good deal on a D1SC setup either..
