building a monster

[kadin1903]

supercharged monster

i need some guidance i want the best of the best for my car. i am buying a vortec supercharger and i plan to run 20 psi(eventually). but can someone push me in the right direction and let me know about much am i going to have to change to run this boost at a safe level. i plan on also upgrading headers and intake. already have 2 chamber flowmaster with echo tips but any suggestions are greatly appreaciated. i am in the research and developement stage and help is always great. thanks

almost forgot it is an 88' lx 5.0 i have aprox 255hp havent had it dynoed yet cuz i am in kuwait

 

[TIMMY2734]

money, money , and even more money

Dart based or r-block shortblock with some nice scat 4340 crank and rods, and ross dished pistons. Im assuming your going to use a 302 based stroker, so something along the lines of an afr185 or 205 head or victor jr.

With soemthing like that, you may be able to break the tires loose

 

[kadin1903]

i want to use as much of me stock engine componets as possible for the time being. it is the 302HO and i am sorta new at the v-8 game if u couldnt tell thats why i was asking always been a stang fan though even though i just recently got my second cuz i havent had one in 2 yrs.

 

[TrophyHead]

Not everyone will agree with this, but I wouldn't even consider a blower motor without a forged crank, rods, and pistons. Be sure you get pistons designed for a blower motor (lower compression ratio), too. Do not scrimp on anything. Get the best head gaskets, best fasteners and build it right.

 

[TIMMY2734]

Not everyone will agree with this, but I wouldn't even consider a blower motor without a forged crank, rods, and pistons.

Il be the first to dis-agree with you But this is a whole different can of worms. With 20lbs, i think thast a requirement. A motor seeing only 8lbs or so of boost will get by fien with a cast crank and hyper pistions, but liek i said, an entirely different subject.

With 20lbs of boost being yoru goal, none of your stock parts are realling going to support that kind of power. Your going to need all new components and open up the check book or break out the plastic money

 

[Mavrick]

Stock block is a ticking time bomb over 400 or more rear wheel HP....

 

[kadin1903]

i plan on slowly building up to 20 psi i not just gonna go out and do it all at once i am in the damn military and cant afford that. lol but it is more like a longterm goal. what kinda of parts do u guys use and do u recomend any thing. all input is great input. thanx

 

[Mustang88LXKid]

Not everyone will agree with this, but I wouldn't even consider a blower motor without a forged crank, rods, and pistons. Be sure you get pistons designed for a blower motor (lower compression ratio), too. Do not scrimp on anything. Get the best head gaskets, best fasteners and build it right.

Yes I definetely disagree with you on that. Thats is very dangours for the engine because you'll definelty blow a rod, if your inexperienced to driving and its just a hazard because you need a VERY strong buttom end to handle a S/C. Don't wanna see any 5.0HO engines blown....

 

[89Notch]

no use putting a high boost s/c on a stock car, why dont you just start off simple with heads/intake/cam?

 

[shallto]

That is a whole lot of boost. If you use the 7% rule, That would be over 600 hundred HP. Not only will your stock block, crank etc. not handle it, but your gonna need a baddass tranny.

 

[TheUser]

Yes I definetely disagree with you on that. Thats is very dangours for the engine because you'll definelty blow a rod, if your inexperienced to driving and its just a hazard because you need a VERY strong buttom end to handle a S/C. Don't wanna see any 5.0HO engines blown....

why is everyone disagreeing w/ the fact that he'll need forged components? That's what the guy was saying...he'll need a strong bottom end (i.e. forged components)...

 

[TIMMY2734]

From reading Mustang88LXKid post, it seems like he agrees, not dis-agrees

 

[crazyquik50]

Thats funny your building a monster and I am packing one. "I did not specify!" (Farva)

 

[302@12psi]

Am I the only one having a hard time trying to think why he wants 20 psi? What kind of goal is that, most people want a et goal or hp goal a relabitity goal a fun to drive goal...not x amount of air flow. Lets look... a well equiped 331 stroker with afr's, custom cam, and good intake can make around 350 hp easily right. 14.7 psi should double your hp rating. so 1.5 times 350 is 525 hp at the crank...fast for anyone...let alone a first time stanger. You wont be able to re use anything really from your stock motor to a built 20 psi monster.

 

[Rick 91GT]

Boost is relative, why 20psi? I assume you do not need to pass emissions?

I agree with Timmy, a strong rotating assembly and block would be a plus, yes the stock block take 500HP-600HP some take more but when you are talking 20psi your taking way to many chances.

Not only will you need good components, you need a fuel system and chassis to take the abuse and power the motor will make, along with a new drivetrain.

Be prepared for $15,000-20,000

If you are serious, this combo below will yeild 9 sec HP with no problems

DART block
331 forged kit, custom inverted dome pistons 9:1
AFR 205 heads
Holley or RPM II intake
42# inj min
80mm MAF
Some type of tuner, PMS, EPEC
1.75" headers min
3" exh
custom blower cam
YS-Trim Vortech or a F-1R ATI Procharger

Complete fuel system

Tremec TKO II, SFI bell, clutch, and flywheel

Cage, saftey equipment, rear end, etc...

The money adds up so quick you cna not believe, as soon as you think you have everything you don't and you need another $5000...trust me I shooting for mid 8sec et's and it ain't cheap.

 

[1992blkGT]

Am I the only one having a hard time trying to think why he wants 20 psi? What kind of goal is that, most people want a et goal or hp goal a relabitity goal a fun to drive goal...not x amount of air flow. Lets look... a well equiped 331 stroker with afr's, custom cam, and good intake can make around 350 hp easily right. 14.7 psi should double your hp rating. so 1.5 times 350 is 525 hp at the crank...fast for anyone...let alone a first time stanger. You wont be able to re use anything really from your stock motor to a built 20 psi monster.

Yea I would have to agree with you on this one. It seems like a bull**** post and a pretty bull**** goal. Who cares what boost you are running? Running 20psi on a stock motor (however impossible) will not create nearly as much horsepower as 20psi on a full h/c/i built motor. Not only will you need a Dart or an R-302 block, you will also need forged internals (like everyone else is suggesting), a really nice fuel setup, a stronger tranny, stronger rear end (if you plan on running slicks, which would be a requirement for traction anyway), and a better driver than someone who just got a Mustang. Running 10psi with full h/c/i will probably get you over 400whp, which is more than enough.

 

[kadin1903]

Yea I would have to agree with you on this one. It seems like a bull**** post and a pretty bull**** goal. Who cares what boost you are running? Running 20psi on a stock motor (however impossible) will not create nearly as much horsepower as 20psi on a full h/c/i built motor. Not only will you need a Dart or an R-302 block, you will also need forged internals (like everyone else is suggesting), a really nice fuel setup, a stronger tranny, stronger rear end (if you plan on running slicks, which would be a requirement for traction anyway), and a better driver than someone who just got a Mustang. Running 10psi with full h/c/i will probably get you over 400whp, which is more than enough.

just to get things straight. this isnt my first stang i had a 93 lx5.0 and a 86 svo before i bought my tiberon which had aprox 307 hp. after i wreched it my mother sold me her second stang and now thats what i got and powerful car are nothing new to me. i just never really built them from groundup on my own and want something i can take timeon and enjoy doing. u might think my goal is stupid but nonetheless it is my goal. i will get to it some time. but i waant to learn as i go and the only way to learn is to ask some damn questions. and if u want to knock on someone for that then u need to check ur self cuz u are a idiot becuz everyone starts with a goal no matter the size or magnitude. just becuase u are safice with letting a few hondas blow ur doors off doesnt mean i am. i want a monster than means bussiness not a 350 hpcar that gets blown past by a 250 hp civic with a few few bolt onsand a damn $900.00 turbo kit. the hell wit that. i cant be happy with that. i would rather drive a damn pinto the get smoked by an import with with a damn trashcan on the back of it. but i do thank the ones who shared valuable info. RICK 91gt and all others, by the way it is gonna be just a race car not everyday driver so emmissions aint a problem.lol.

 

[ComfortablyNumb]

why is everyone disagreeing w/ the fact that he'll need forged components? That's what the guy was saying...he'll need a strong bottom end (i.e. forged components)...

Maybe they want billet

 

[Venom351R]

You should aim more towards certin HP goals more then boost goals. W/ a 331 or 347 Stroker, AL Heads, good cam, Good Intake, built Tranny ( Tremmec) and a Supercharger pushing around 15 LBS of boost will give you a ton of power w/ that set up. If you build a car w/ 20 LBS of boost you going to have a TON of power that prob wont make it a fun car to drive on the street anymore. My goal is to break 400 RWHP, I dont want anymore then that b/c Ive ridden in stangs w/ 510 RWHP and I'll be honest it was scary and Its not pratical for the street. Just my .02, hope it helps