Twin turbo or supercharged?

351mustang · May 8, 2008

hey guys, i need help on figuring out if i should supercharge my 4.2 or if i should twin turbo my stang ....
if you guys could help me on deciding what i should do to it it would be appreciated

quik67mustang · May 8, 2008

single turbo ftmfw :thumb: but if you have the extra 2K to spend, go twin turbo

www.tmaturbo.com

351mustang · May 8, 2008

I found a shop in town here that is willing to make a custom twin turbo set up for my car using 2 ford probe turbo's they have for a decent price the only thing they said that would cost me is finding a intercooler to fit my car ... does anyone have any ideas where i could find a front mount intercooler ? or have any advice on how much fabercating to my front bumper to fit a intercooler behind it ... cuz ive looked infront of my rad and theres not alot of room in there ... thanks for your help

quik67mustang · May 9, 2008

this is how i fabbed mine to fit, it tucks nicely as well :thumb: and go on ebay and look up 32x12x3 intercooler, thats what most people use

351mustang · May 9, 2008

Thank you guys for the help its really appreciated :dancing6:

quik67mustang · May 9, 2008

also i would pay the money for a decent set of turbos if youre going with twins :thumb:

351mustang · May 9, 2008

i have another question that i need answered does anyone know what size of injectors i need to order and fuel pump ... oh yeah and maf sensor ..?

RJayLo · May 9, 2008

Id stay away from the ebay intercoolers. They arent very efficient. Work? yes. Work well? not really. Get some dimensions and have Turbonetics/Spearco build you one. They already have a variety of cores availiable, just have to figure out your endtank and inlet/outlet sizing and locations.

quik67mustang · May 9, 2008

351mustang said:
i have another question that i need answered does anyone know what size of injectors i need to order and fuel pump ... oh yeah and maf sensor ..?

how much power are you planning on having?

351mustang · May 9, 2008

in not quite sure yet how much boost i can run on my car, me and my mechanic have decided on around 10-12 pounds of boost until i replace some more of my internals. so I'm hoping somewhere around 300 if not more

351mustang · May 9, 2008

what do you guys think of underdrive pullies? are they worth looking into?

quik67mustang · May 9, 2008

351mustang said:
in not quite sure yet how much boost i can run on my car, me and my mechanic have decided on around 10-12 pounds of boost until i replace some more of my internals. so I'm hoping somewhere around 300 if not more

wait so did you stroke your 3.8 out to a 4.2 but use all stock internals?!!??! and we still need a list of your current mods, and if youre still a single or splitport.....if you have a built 4.2, throw a 10# spring in there and buy a mbc and crank it up to 12+psi at it and go from there....and your numbers and state of your car really depend on your supporting mods....STOCK 94-98 engines should only have 7psi MAX thrown at them, stock 99+ engines can run 10psi safely, anything over that and you are going to decrease the life of your motor by alot. also yes, an ud crank pulley is worth the extra hp, good cheap mod.

351mustang · May 9, 2008

no i didn't use my stock pistons, rods , crank stock heads , stock intake , i need to find where i can get new high comp heads and a split port intake so i can handle the turbo boost

quik67mustang · May 9, 2008

351mustang said:
no i didn't use my stock pistons, rods , crank stock heads , stock intake , i need to find where i can get new high comp heads and a split port intake so i can handle the turbo boost

well it sounds like you have a built motor then.....and you dont need to spend all the money on heads, go on supersix motorsports website and spend the $800 on their splitport conversion kit, its not just the intake you need, you need everything from the heads up....so you should be able to hit at least 400+rwhp pretty easily since you have a built motor if you decide to go splitport, just make sure you get a solid and safe dynotune

94gtstang50 · May 9, 2008

351mustang said:
i have another question that i need answered does anyone know what size of injectors i need to order and fuel pump ... oh yeah and maf sensor ..?

42lbs, 255 pump, an adj regulator to be safe, maf not sure. I'd go with turbo's too, much better for then engine. Just my 2cents.

351mustang · May 9, 2008

i was also wondering will my stage 1 clutch and pressure plate stand up to a turbo or should i upgrade it to a Kevlar stage 3 kit? also will a lighter flywheel make a big difference?

quik67mustang · May 10, 2008

351mustang said:
i was also wondering will my stage 1 clutch and pressure plate stand up to a turbo or should i upgrade it to a Kevlar stage 3 kit? also will a lighter flywheel make a big difference?

also for the maf go with the properly sized SCT unit, you can get one from vmptuning.com :thumb: and details about the clutch will be helpful, but im assuming its a spec or similar clutch, and no it wont stand up to the high horsepower levels, its best to upgrade to a 10.5" GT clutch with the correct stage from spec and the correct aluminum flywheel also from spec

94gtstang50 · May 10, 2008

Your stage 1 will eventually go if you beat on it, so prepare to do one in the future. Lighter flywheel makes for more top end, but less bottom end getup and go torque if I remember right. It depends on how much money you want to throw at the car, if you don't mind the extra $300 than go for the flywheel too, every little bit helps in the 1/4 mile.