Super charger or no super charger that is the question? I have planned to put a procharger on my car for the longest time and have one waiting. The reason i first wanted the sc was because i was gonna try to keep my car driveable on the street and was thinking to switch over to EFI, but now I am having second thoughts. Pretty sure im going to drop the idea of going efi just because of money and what not, but now i dont know what i am going to do with the S/C. My plan was to build a stroked 302 with the sc (347) I have the rotating assembly for the 302 but unsure now if I want to go that route. Does anyone have any input or advice? BTW: the car is being built to bracket race in the 1/4 mile most likely in the pro category.
I'm in a similar position as you. I am building a low compression 331 and adding a vortech supercharger. Are you building a low comp engine as well? I figure I'll be in the high 200's or low 300hp range so I should be able to use the vortech at 10 psi or so and get my hp up there.
originally looking at low compression but unsure now...the blower I have is capable of pushing up to 35 psi so im lookin at big numbers in hp
Had a dart block on the way but then there were problems with it being shipped so I am waiting till the car is closer to rolling to buy the block
have you considered going with a blow through carb? ive done lots of research on this. the fuel system will cost you the same with carb or efi. a good blow through carb will run you between 400 and 800. you could do a mega squirt system for just under 1000 if your creative. the tuneing is easyer once you get your base program with efi. you may also want to consider e85 fuel. you can run higher compression with bost with e85. its cheaper than pump gas and alot cheaper than race gas. you can also plan on building the motor around 10 or 11 to 1 compression for pump gas with no blower then put the blower on and switch to e85.
F.A.S.T. makes a awesome efi system that is really tunable and is blower friendly it also bolts to any 4150 type flange their ez-efi is a selt tuning system that will support up to 500hp
a guy on the board here named erick has a very nice setup, he is using a 351 dart and a procharger as well.
yeah im lookin at more than 500 hp and it is actually the D1-x procharger but compares pretty close to the f1.....we shall see might just sell it and go all motor
OK, let me give my 3 cents worth..................I have played around with roots type blowers and exhaust driving turbo systems...................this is not cheap and unless setup correctly will reduce all of your hard earned "green backs" into dust. There are two very important factors to making a "boosted" motor, the block/crank/rods/pistons/rings.......................then the heads! Take a look at this block...............it's fairly new and I've heard a lot of really great things....................plus they have "splayed" four bolt mains which is important when you are talking boosting over 13psi; http://www.store.procompelectronics.com/index.php?target=products&product_id=37735 So, one question I have is why anyone would want to build a very small CI motor and then put a bower on top? Cubic Inch relates to HP and on the street Torque is the King.................so why build something less than 408ci? I am not trying to be smart................just looking for the reasoning behind it......................... OK, let me get back to the short block.....................buy the best block you can afford because you can never have enough HP and I just don't believe Dart is the way to go......................IMHO You will also need the best crank you can afford............forged steel is the only way to go..............cast will not live with upwards of 13psi on a consistant basis........again MHO..............then rods, H beam naturally, then pistons and here again forged.....and I would go with around 9 to 9.3CR at least( I would guess that using a 9/9.3CR should still be able to get over 500HP without the use of a blower[not is a small CI motor though..........you would have to be at least at 408ci or above], and once you put the blower on the sky is the limit.....................then all you have to worry about is that your car can handle this much HP). As for rings.................gapless is the only way to go. As for the heads...................on a Ford motor the heads are very critical, and again I'd look at ProComp or TF twisted wedge............IMHO As for a "blow through" carb, take a look at CSR; www.csucarbs.com ........a blow through carb can cost 1/3rd of what an EFI system can although it is a little harder to tune. The last part of the puzzle is the ignition system.....................and this is pretty critical because in a blower motor pre-ignition can destroy that $10k motor in a blink of an eye............................Personally, I have chosen to use "All Motor", and still achieve the 700HP that I need to get down the 1/4 in under 10sec...............................I think it is more challanging than bolting on a blower/nitrous..................and building the motor is a little cheaper.......................IMHO
