is it possible? i plan on building a 440 LS7 and putting it in a 99 FRC.

thoughts? opinions?

 

Possible, maybe, but it's going to take a massive solid roller cam and probably a sheet metal or ITB intake to get it there. If you've been keeping up with WKMCD's build by Virginia speed, his motor is over 650 fwhp, using a relatively small hydraulic roller cam and a ported FAST 102 intake and TB. His combo will be very street friendly.
A 650rwhp NA build probably not so much. But hey, give it a shot, it could be very interesting and alot of fun! Might be worth a phone call to Shawn at VA Speed to get his expert opinion.

Jimbo

 

ah, ok. i'm staying hydraulic roller. guess i'll just throw a little more spray at it to make up for the lower NA power.

 

That changes everything!

 

Possible --Yes, but it will take alot of money. HP is not cheap.

 

You will probably need more cubic inches. That is a lot of power out of 440.

 

SIMPLE

a$$ loads of $$$$$ makes stuff happen, if you don't have the knowledge or machine shop to build your own motor

Stay 346 and call TTi, they are in WA state!!!

 

You should reach out to CF Moderator Jersey Jay. He can give you solid, first hand advice on the best way to achieve your numbers (in addition to others).

The guy can speak from "Corvette Magazine cover car" experience. 830 rwhp I think was his number.

those kind of numbers, start saving to harden all the parts in addtion to spray, etc.

 

some expensive heads

 

i thought about that. i also thought about a compound boost set-up with a TTIx kit feeding into a Maggie. (see Hellion Hellraiser kit for ideas). i actually spoke to Nick a couple months back about it.

the car is currently in Chicago because i'm deployed (and yes, i've been talking to Larry at speed inc)

i really want to stay NA though

 

It's certainly doable with the right parts working together.

My car makes around 700rwhp(dynojet) so far with 388cubic inches.

Shoot me a pm if you have some specific questions.

 

The only person I know of making 650rwhp without an ITB intake has 500ci. I ended up at 600 with my 440 and believe with the new fast 102 you could pick up a bit more. 600rwhp in a light car is a blast and should be a monster on spray. I'll know in a month or so.

 

I built a 414 LS7 headed motor with a hydraulic roller that made 670 at the flywheel, and on the first chasis dyno session made like 560 @5000 (with peak power coming at 7200 on the engine dyno) so it should make 600 at the wheels pretty easy. Basically, with the right heads and cam you should be able to do it or get pretty close with another 25 cubes. But as stated above it wont be cheap.

Joe

 

An ITB manifold has it's advantages, one being great driveability but I don't believe it's the best manifold for maximum horsepower especially the ones that fit in vettes. The ones that will fit in our car all have inherent problems that leave alot of hp on the table.
Over time better manifolds will eventually surface for corvettes that will solve some but not all of the issues and still fit under the hood.

 

on a real dyno? no. unless you want to spend 25k on the motor.

on a cheater dyno, yes.

my buddys 440 LME LS7 made 530 on a mustang dyno we tune on. (real numbers)

went to a dynojet we know of for "fun numbers" and it made 630rwhp, no changes in the set up

it has 235 TF heads and a huge monster cam. Anything with 650rwhp on the street is going to be a bitch to drive

 

he said NA

 

My car is n/a. You keep missing that.

Not sure if the dyno I use is a real dyno but my car made ~620rwhp on a mustang dyno so far.

 

Darion

 

I agree and I'm not nocking your setup at all, but I don't think it's for the average enthusiast. If I had the money to experiment with one I would, but that isn't realistic for me. I believe I am at the limit of the fast and haven't seen anything to compel me to go with a sheetmetal intake other than how good they look.

 

I spend $2000 on my manifold so it didn't break the bank. The car drives so much better than it ever has on the street. I have the car idling around 600rpm and can go around a turn in 4th gear at 10mph. When I had a fast and the 346 stock motor, the car had worse street manners.
It takes alot of time and patience to set it up and it require a good tune.

The OP asked about achieving a goal. It looks like I'm the only one here that can give first hand knowledge.
Making 650rwhp n/a is not for the average enthusiast either. My setup is just one way of getting there and without the need for a very big motor.
Again, better manifolds will surface sooner than later that will outperform the current ones and in the right hands will allow the corvette guy/gal to make big power.