hi,

i wanna build a 450 rear wheel horsepower car that is a daily driver, i have a 1997 camaro ss . i wanna do this on all motor with no nitrous, so i was wondering if there is anyone out there who could tell me what to change and exactly wht they think the best product would be as far as namebrand wise.

Thanks...

 

Thanks for the help

 

the 1st thing you need to do is some good searching and research on this forum.

I searched and researched for around 1 year before i started on my engine and am very happy that i did so without rushing into things.

 

Yes, I would also have expected an answer in less than two minutes

Rich

 

Well, you are going to need a big inch motor. Probably 396 or larger. This is going to require a bunch of machine work so know your machinist well. I would not send the compression much over the stock 10.5:1 as there is not much to be gained from it anyway. Definitely go with a splayed 4bolt, the cost is not much greater than standard 4 bolt. A forged bottom end will save a bunch in the long run, but cost more now. Heads and cam are critical. The heads will need to flow around 300cfm on the intake and about 75% of this on the exhaust. The cam will need to be matched to the heads, so get a recommendation from the head porter or use the flow numbers from the head (ie. head flows 300cfm at .600 lift, don't buy a cam with .540 lift, even with 1.6 rr you won't see .600 lift). Duration will need to be high around 230-250 intake and exhaust. Exact figures can be found by talking the cam maker or testing. Cam maker is quicker and cheaper. Expect to spend around $10,000 to $15,000 to build this. I also believe that at this power level you will need to replace the rear end and maybe beef up the gear box. A new clutch is a must. Sorry for generalities, but there are far too many variables to be specific.

 

Well - I disagree with your compression recomendation, compression is power and you need it for the appropriate cam to work.

I would push compression up to 12, solid roller cam with about .640 lift, raised runner afrs that are ported a second time to make sure they are up to the task. Look for lots of airflow and compression so that you can get a cam that is drivable on the street. GOOD oil control.

My concern is that you are going to run out of RPM before peak power is made, the stock computer will only go 7k, this kind of motor will want to spin right about at 7k and may limit power up top.

 

Are you opposed to a supercharger? That would make it real easy and drivable too. It's manners on the street would be awesome and it would make that kind of power lower in the rpms.

 

You could make that power fairly cheap with a supercharger as well. I think 6lbs with the aforementioned heads and a good cam could do it.

I could be wrong, don't know too much about FI.

Jeremy

 

wow 300 cfm and low compression huh... well all i can say if you truly want it call AI and tell them your goal . if you have deep pockets you can get there. you WILL spend around 10,000 i do agree with that.( if you haven't upgraded anything yet) oh yeah thats not counting the 12 bolt or 9 inch. my heads,intake work,custom cam to match heads and rockers cost 3350. bottom end around 3400. if i am thinking of all parts i might be missing some. oil pan, pump, pickup another 400. ATI dampner i think was 350's . taller valve covers 100 something . thats just ball park and you can do it cheaper than i did but not much better as far as parts go. oh yeah i already had 12 bolt with street twin and 1 nitrous system. oh yeah dont forget to upgrade your intank pump and injectors to feed it , forgot about that.

 

LE3 383 and supporting mods should get you dam close.

 

I also am curious if you would like to do it with a supercharger and no nitrous. You could get to 450rwhp with less money and it would be more streetable.

 

This could be easily answered in LT1 engine tech, not Advanced tech. Youll prolly get alot more answeres there also.

 

Surprised anyone even attempted to help you after that bit of sarcasm. Your followup post was just as bad. The idea here is for people to work together to help each other, not **** and moan because you didn't get an answer in 2 minutes and someone noticed your impatience.

Building a 450rwHP LTx is not "Advanced Tech". Best place to find the answer is on the "LT1/LT4 Engine Tech" forum. I'll move the thread there for you. If you have posted it there in the first place, you might have got an answer in less than 2 minutes

Have a nice day.

 

PLEASE post only on one, correct forum. You had this on Advanced Tech, and it didn't belong there. Now you have two posts here with the same topic. I'll "merge" these into one thread for you.

 

I'm surprised anyone answered this. I'm not a big fan of the guys that come on here and their first post is how can I make a ginormous amount of n/a horsepower with my LT1. Where do I start? I'd answer that with the search button on the top of the screen. Always search a question before posting it.