Ok, I'm buying an L98 thirdgen soon. I think my mods will be full exhaust, shorty headers (emissions) Scoggin Dickey Vortec Intake, Vortec Heads, and a cam.

Depending on cam, what do you estimate the RWHP of this car to be? Which cam would you recomend for this setup, keeping in mind I have to pass emissions.

And does anyone know how much the SD Intake and a set of Vortec heads runs? Thanks

 

Just picking a number out of the sky, I'd say around 260 to the wheels. I do, however, know how much the intake/heads run:
Intake: $400
Heads: $530 (265 each from Jegs, I think)

-Rippin

 

probbaly around 260 to the wheels I agree, but you lose alot in the stock suspension. SUbframe connectors and a few other suspension mods I would say you could probbaly get around 300 to the wheels. And with TPI you would be makin an assload of torque.

 

http://www.jegs.com/cgi-bin/ncommerc...43&prmenbr=361

$1200 for the aluminum. $600 for iron. I would reccomend alum if you're going with Vortecs. Why bother with cast if you're paying for new heads???

Cam gonna run you $300

Intake...i'm not familiar with the "Scoggin Dickey" but a basic vortec intake is another $300.

You will not be dissapointed in spending $1200 on alum vortecs from what i've heard. The thing is, you can't get a very big cam with the vortecs due to thier valve design...it will eventually tap the pistons. Thus, with the hi-flo heads, you are forced to reduce the potential size of your cam.

I'd say about 350 at the crank with as big a cam as you can run, good intake, and the alum heads.

 

Miniram -900
Fuel rails - 300
Protopline Vortecs - 600
Custom tuning - 300-600
Cam - 250

You could probably get 400-450 HP, and you would not lose a huge amount of torque, either way burnouts will not be a problem. I'd keep a TPI if I was going to go forced induction, but NA if you want horsepower TPI will choke. Aftermarket parts help, but it's still choking.

 

you can't go forced induction without building the bottom end at least somewhat, though, and that's massively expensive.

 

Massively expensive?

Some 300$ Eagle Sir rods rated to 500HP, some 9:1 pistons, and the stock crank. Bout 1000$, and if your going to SC, you will want to freshen up the bearings etc anyways. I don't know, I always assume people are going to do all assembly themselves and are paying parts only, not labor. The kit is whats expensive.

I wouldn't go forced induction except for 500HP+ though because of the cost of the kit, I would think it's cheaper to go NA to get under 450HP.

There was a guy with the ATI Procharger on his TPI 305 running 11s I thinkTPI didn't matter since the SC was jamming air in....I like SC/turbo because it's no brainer HP, the only thing holding you back is bottom end.

I did so much reading and questioning as I tried to prepare for my 350 buildup....I have no idea if I'm going to run 14.4 or 13.7. What I built it to do, and what it's gonna do are beyond me, I'm tired of speculation of what x heads, with x cam, with x intake will run. I'll take it to the track and find out for sure. Seemed like so many people doing engine builds, and I couldn't find 1 person with a buildup close to mine who was able to tell me what I will run. heh...sorry, I went off topic.

 

I agree parts reallly arent THAT expensive. You biggest investment would be a steel crank for around $600, and even then if you didnt go overbored you would probbaly get away with a SCAT 9000 for around $300.

 

In totaly agree with Stealth, the only thing I would do is change to some topline 23 standard degree heads with a stealth ram.

I always suggest against going with a vortech TPI set up because the end price for a WAY better set up is a matter of a few dollars. The very thought of spending 400 hundred dollars on an inferior intake is ludicrous.

Here I go with my opinion;

Top line 200's
Holley stealth ram
224/226 cam for a very nice idle
230/234 for a rough idling power house

The best you can hope for with the vortech set up is 320 horse flywheel
The minimum you can expect from the Stealth ram topline combo is 420 with the small cam and 450 with the larger lift option.
You HAVE to be honest with your future plans of power, and if you go vortech I guarantee you will be selling the combo at a loss to fund you future engine.

 

SteathElephant:

I agree, the parts aren't too bad, usually it's the maching that kills. I'd say that most people (myself included) do not have access to machines or facilities to magna-flux, bore, hone, grind, flow-rate, etc, etc all the things that need to be done in order to ensure that it's properly built. That's what i was referring to with "massively expensive."

BTW, are you positive you can run boost with the stock crank? I thought it was only rated for 440 horses and 6000 RPM? That's a big cost factor there. Otherwise i could easily run boost on MY engine till about 415 horses (where the stock rods give out.)