5.0 mustang 400 to 450 hp rebuild help

narkmaul · 05-01-2008, 02:32 AM

Hey Guys,
I was wondering if you could help me with a few question I have on my '93 Mustang LX Hatchback.
My goal is to have a 400 to 450hp daily driven Mustang so my gas mileage and driveability will be a concern.

I have the the following parts I am using for the rebuild:

255 lph intank fuel pump
255 lph Inline fuel pump
P600b procharger with intercooler
shorty headers
H-pipe
Flowmasters
30lbs fuel injectors
76mm c&l mass air sensor
70 mm throttlebody
GT-40 upper and lower intake manifolds
Underdrive pulleys
electronic fan
3.73 rear end
BBK Fuel pressure regulator

My question is do you think I need new headers or if porting my old ones would work. Also would if be best to my CPU flashed. I also thought about getting a new cam or should maybe get 1.7 roller rockers, and should I get the bottom end rebuilt.
I would appreciate anyones input that would be helpful.

Thanks in advance for everyones input

spike_africa · 05-01-2008, 06:49 AM

You have to many fuel pumps, the underdrive pulleys cant be used with a supercharger, the supercharger is a shitty one thats not efficient and you will not get to your goal with that setup.

narkmaul · 05-01-2008, 07:17 AM

thanks for the reply so what would you recommend i do to get the power i desire ??, and i guess i should ask what kind of power would my current parts get me ?

r3dn3ck · 05-01-2008, 09:51 AM

vortech v1 or v2, paxton novi-1000, procharger p1sc

injectors are too small... I'd shoot for 36's minimum.

Use the 255 intank pump. The inline is meant to suck through the intank pump you have so it's not needed.

Gunna need some head work. Stock e7t heads are t3h l0s3. A blower cam would help too.

You could just as easily make pretty near 400 streetable hp NA with a proper head/cam/intake/exhaust package on a 331 bottom end. It'd be cheaper and easier on the motor than the blower.

narkmaul · 05-01-2008, 05:47 PM

thanks , i didnt even think of going 331 but i will have to look into it, how would that affect my mileage, i got kinda a long drive to work (about 60 miles round trip) thanks again

heres the article that i used to make some of my choices, www.mustang50magazine.com/techarticles/14518_50_engine_buildup/index.html

with what i already have do you guys think it might be an alright ride till i can save and get the better parts next year? also could i swap out my p600b with a p1sc using the same mounts and inter cooler tubing?

817bigtex · 05-07-2008, 05:10 PM

Quote:

Originally Posted by narkmaul

thanks , i didnt even think of going 331 but i will have to look into it, how would that affect my mileage, i got kinda a long drive to work (about 60 miles round trip) thanks again

heres the article that i used to make some of my choices, www.mustang50magazine.com/techarticles/14518_50_engine_buildup/index.html

with what i already have do you guys think it might be an alright ride till i can save and get the better parts next year? also could i swap out my p600b with a p1sc using the same mounts and inter cooler tubing?

I would stroke the engine to either a 331 or 347,And use the Trickflow top end engine kit and a 150 shot of nitrous

ClemsonStang · 05-08-2008, 07:37 AM

rebuild the short block, throw some name brand heads on it, preferably afr 185's, a modern cam from comp/lunati ect. and a shot of the giggle gas.

spike_africa · 05-08-2008, 08:13 AM

Quote:

Originally Posted by ClemsonStang

rebuild the short block, throw some name brand heads on it, preferably afr 185's, a modern cam from comp/lunati ect. and a shot of the giggle gas.

I like where your heads at. Thats how i would do a 5L fox.

narkmaul · 05-10-2008, 03:34 AM

thanks everyone i am having the block tore down and rebuilt this week, i think the main reason im looking at using the supercharger is i already have it, i got it dirt cheap awhile back and just figured i'd throw it on, how would everything work if i got the afr 185 heads, new cam, stroked the block and throw the charger on there

05-01-2008, 02:32 AM	#1 (permalink)
narkmaul Junior Member Join Date: May 2008 Posts: 5	5.0 mustang 400 to 450 hp rebuild help Hey Guys, I was wondering if you could help me with a few question I have on my '93 Mustang LX Hatchback. My goal is to have a 400 to 450hp daily driven Mustang so my gas mileage and driveability will be a concern. I have the the following parts I am using for the rebuild: 255 lph intank fuel pump 255 lph Inline fuel pump P600b procharger with intercooler shorty headers H-pipe Flowmasters 30lbs fuel injectors 76mm c&l mass air sensor 70 mm throttlebody GT-40 upper and lower intake manifolds Underdrive pulleys electronic fan 3.73 rear end BBK Fuel pressure regulator My question is do you think I need new headers or if porting my old ones would work. Also would if be best to my CPU flashed. I also thought about getting a new cam or should maybe get 1.7 roller rockers, and should I get the bottom end rebuilt. I would appreciate anyones input that would be helpful. Thanks in advance for everyones input Last edited by narkmaul : 05-01-2008 at 02:36 AM.

05-01-2008, 06:49 AM	#2 (permalink)
spike_africa Administrator Join Date: Sep 2004 Location: Orlando,Florida Posts: 6,657	You have to many fuel pumps, the underdrive pulleys cant be used with a supercharger, the supercharger is a shitty one thats not efficient and you will not get to your goal with that setup. __________________ Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO!

05-01-2008, 07:17 AM	#3 (permalink)
narkmaul Junior Member Join Date: May 2008 Posts: 5	thanks for the reply so what would you recommend i do to get the power i desire ??, and i guess i should ask what kind of power would my current parts get me ? Last edited by narkmaul : 05-01-2008 at 07:21 AM.

05-01-2008, 09:51 AM	#4 (permalink)
r3dn3ck Wowbagger hates me too! Join Date: Nov 2005 Location: Magrathea/California Posts: 6,513	vortech v1 or v2, paxton novi-1000, procharger p1sc injectors are too small... I'd shoot for 36's minimum. Use the 255 intank pump. The inline is meant to suck through the intank pump you have so it's not needed. Gunna need some head work. Stock e7t heads are t3h l0s3. A blower cam would help too. You could just as easily make pretty near 400 streetable hp NA with a proper head/cam/intake/exhaust package on a 331 bottom end. It'd be cheaper and easier on the motor than the blower. __________________ Built 5.5L 2v and Maximum Motorsports Max Grip box. www.squarerootofone.com My CarDomain Page

05-01-2008, 05:47 PM	#5 (permalink)
narkmaul Junior Member Join Date: May 2008 Posts: 5	thanks , i didnt even think of going 331 but i will have to look into it, how would that affect my mileage, i got kinda a long drive to work (about 60 miles round trip) thanks again heres the article that i used to make some of my choices, www.mustang50magazine.com/techarticles/14518_50_engine_buildup/index.html with what i already have do you guys think it might be an alright ride till i can save and get the better parts next year? also could i swap out my p600b with a p1sc using the same mounts and inter cooler tubing? Last edited by narkmaul : 05-01-2008 at 06:09 PM.

05-08-2008, 07:37 AM	#7 (permalink)
ClemsonStang Senior Member Join Date: Aug 2006 Posts: 375	rebuild the short block, throw some name brand heads on it, preferably afr 185's, a modern cam from comp/lunati ect. and a shot of the giggle gas. __________________

05-10-2008, 03:34 AM	#9 (permalink)
narkmaul Junior Member Join Date: May 2008 Posts: 5	thanks everyone i am having the block tore down and rebuilt this week, i think the main reason im looking at using the supercharger is i already have it, i got it dirt cheap awhile back and just figured i'd throw it on, how would everything work if i got the afr 185 heads, new cam, stroked the block and throw the charger on there

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