blown03mustang

hey guys...well right now ive got an 03 mustang Gt. got a vortech at 10 psi and full bolt ons, makin just shy of 400rwhp. anyway ive made up my mind that i want an ls1. ive spent many years not liking f-bodys, but for some reason they have grown on me. so im finally gonna take the plunge and go with my gut and trade to the darkside i am a mechanic so i do know quite a bit about cars and i do know quite a bit about ls1's. i have a goal of 550+ with decent/good driveability when its all said and done. i also wanna break at least a 6 sec time in the 1/8 i have about 4k to start with. im thinkin bout a lid, air filter, Lt's, slp loudmouths.

now i have a few questions:
1). typically how much will it cost for 400rwhp from stock form?
2). how much (average) for heads/cam, and install....any other supporting mods with the swap?
3). cost effectiveness of having the ls1 over a blown 4.6 2v?
4). whats the limit on the stock bottom end?

thanx guys

AronZ28

iTrader: (2)

Use the search, damn newb.

blown03mustang

ok first of all, i really hope that all f-body guys arent dicks like you. i know about the search function. ive been on the mustang forums for a long time. couldnt find what i was lookin for. and seriously dude if your not goin to contribute to the thread then dont reply.

hllrzrls1

1)2) h/ci will get you 400 rwhp since ur a mechanic should be in the 2,000 - 3500 range in parts depending on ur setup
3)definately more effective than a blown 4.6 which u probably know that 400 rwhp is like knocking on deaths door for a stock bottom end 2v
4)once again depends on parts but there guys on the forum safely pushing 500+ on stock bottom end its all in the tune

hope that helps some

https://ls1tech.com/forums/new-ls1-owners-newbie-tech/361959-so-you-wanna-fast.html this thread has some great info

SparkyJJO

iTrader: (11)

They aren't. He's just being rather rude (bad hair day maybe)

2001somws.6

iTrader: (1)

Dude that is so rude.

chavez885

iTrader: (12)

*waaaaaaaaaaaah*

blown03mustang

not true...ive seen more than a few hit the 500rwhp mark for well over a year or two with no problems and being DDs. generally the rule is 450-500rwhp, but its all in the tune.

ive raced quite a few f-bodys and they are tough tough competition. i have much respect for the drivetrain ( minus the rearend ). i just want a car that doesnt need 10k+ in mods just to sustain 500rwhp. plus theres nothin better than having an all motor beast. yes i like FI, but theres a point when it gets old. i dunno maybe im biased.

thanx for the info guys. and yea i know a few f-body guys, they are pretty cool. just dont like guys that think because they have 1k posts on a forum that they are god and know everything.

blown03mustang

so if i did bolt ons and h/c....what fuel upgrades would i need? fuel pump, injectors? how bout spark plugs?

chavez885

iTrader: (12)

at 450 horsepower? Probably a walbro pump and 36-42 pound injectors...really depends on how big you go. 450 all motor is a pretty big cam and some nice heads.

sidewayz28

iTrader: (24)

you can make 400rwhp with just a cam, LTs and the usual. if you want 500rwhp add a little spray. you would have a mean car N/A and a monster on the juice. it depends on what you wana do

CRAGER

You don't need a fuel pump, with my 427 pushing 551rwhp and I still have stock fuel pump. I have 42lb SVO's and TR6's.

No offense but a 2v just sucks ***. 400rwhp with a blower is nothing to really brag about (again no offense), alot of LS1 guys have that with bolt-ons and cam only. Plus losing boost in the summer time would suck *** for bower cars, and or heat soak in general. You can hot lap an LS1 if you wish.

Peace,
Craig.

ABQ99TA

iTrader: (17)

400rwhp is a couple grand with LTs and a cam. As for stock bottom end I'd say it will do 500 with no problem I know a guy that with H/C and spray putting 640rwhp on his stock bottom end for a couple years. His bottom end did not go he melted a piston first.

09CPTN

iTrader: (5)

Welcome to the LS1 community!

Detoxx03

iTrader: (14)

Man your gonna pee in your pants when you feel the power of a modded ls1. I'm excited for you. It will be real easy to hit 400rwhp. Good luck

blown03mustang

i dont know much about those pumps but for the mustangs ive heard a lot of negative things.

whats a good h/c setup to look at for the now to go along with bolt ons with spray in mind.

blown03mustang

yea i know...ive raced a few and they had less power than me, from a roll and dig it was always tight. im thinkin that 400rwhp or so will be fine til i get enough for some juice. u guys are pretty helpful though. thanx alot!!!!

98Z28MASS

iTrader: (6)

Cam only id go g5x3 for 400 rwhp, gotta have all the bolt ons first though (Longtubes, ory, catback or duals, ported TB, 25% pulley, LS6 intake or better, CAI). Toss on a good set of heads and ported fast 90/90 and you would be looking at around 450 rwhp. A good heads/cam setup is going to cost you anywhere from $2K on up.

Black02SLPSS

iTrader: (5)

Welcome to the community! I have not done anything major to my car yet, just going to be converting my car from an auto to a 6speed here very soon, but from everying thing that I have read on this site 400rwhp seems to be very easy attainable with minimal mods. I know im prolly not pushing that yet but later on down the road I hope to be. Anyway once again wecome to ls1tech

blown03mustang

thats not bad for a h/c setup, considering i was gettin ready to drop 3k on the shortblock for my car then another 3-4k in h/c. i dont want anything too radical seein as how ill have the spray to get my numbers up.