Hey guys got a 98 Vette 6 speed that made 431whp and 404whp after tune but now i feel like i need more . This is my current list now .
k&n cold air
Tsp headers and xpipe no cats
Borla exhaust
Ls6 intake manifold
Torqued v2 cam i believe it's 232 234 112
Springs and pushrods and i just changed the clutch. Let me know what you guys think I should upgrade maybe heads or manifold TB and let me know witch one you think . And not to pricy ,🤣

 

Supercharger!

 

Other then SC or turbo

 

Heads and a Fast intake might get you to 450

 

Rear gear.

 

 

Should of s/c from the beginning. Then u wouldn't have this problem. Seen this way to many times. Probably the cost was the big hitter why u went ur way. But the little gain ur going to get will not be worth the money now. JMO

I got lucky friend had mid 400's zo6, took a ride it was ok, but i had hot rods my whole. Another friend was s/c basic set up p1 10psi boost.you know when u get out of the car with a smile u cant pound off with a hammer, that was my route no matter the price on my stock c5. Everytime had a smile when the peddle was smashed to the floor.

 

Your right should of SC at the time but i had this car since I was 20 I'm 34 now so didn't have the money was doing 1 thing a year now I just feel like i need more .so you think I would only gain 20hp with heads and fast intake or msd

 

What is ur budget?? U doing the work? Dont forget about the tune that's easy could couple to 500 bucks. Weight out the cost for a few more hp that u proby won't even tell u added and if u do it's not going to last long. Sounds like u have the HP bug. I start at 550hp 2005 now im well over 1000. And about 100k over the yrs.

O sorry yes about 20 30hp

 

A Fast 92 intake and either CNC ported 243’s or Aftermarket heads should get you between 440 and 460 rwhp. Definitely no slouch and should make ya smile every time you drive it.

 

Bars and links. Front and rear.

 

I guess he should of been more specific. What i got out of it is more HP.

 

Yes more power I've already done front end work and rear i just wonder what do ppl do to get to 500whp with just bolt ons , I feel like I've done everything but heads and intake and tb .yes will always tune after and here in Canada it's 800 to tune unless I drive 2 hours to get it for 400$.

 

You will be fighting the science of displacement if you are looking for a true 500 rwhp. As you climb over 1.5 hp per cubic inch the motor gets exponentially more unstreetable - with the high end of the spectrum being ultra high compression, huge cams, radical head design, etc. Sure you will find a dynojet sheet somewhere by someone saying they netted 480 rwhp with a relatviely mild build, but those are just numbers and not true science.

One option on the table, given what you have already put in the car, is to throw a 100 shot of nitrous on it, tune it, and call it a day. Then you have the HP when you want it but aren't out any more reliability.

 

If you're still running 346 cubes, it's gonna be difficult to get to 500 CRANK hp, much less 500whp. I agree with Helga, if you want 500whp from a 346, you're going to have to go with some sort of power adder. Nitrous would probably do it, but without going inside the motor to go with forged pistons, you're on the ragged edge running nitrous w/cast pistons. It'll be OK, IF everything else is perfect, especially the tune. If running pump gas, you'll have to run the very best, and probably octane booster for good insurance. I would personally go with Helgas suggestion, cut my losses, and go with a blower. I know its a lot of money, but you'll have pretty much stock reliability, which, to me, is worth a lot, too. In my opinion, the blower will be more forgiving than Nitrous if something goes wrong. A buddy of mine has a C5 Z06 with a Procharger, and for 4 or 5 years he left everything stock internally. He's got a cam in it now, and says he's over 600whp now. Don't know what cam specs are, as he wants to run my LS7 equipped 2000 Vert. So cam specs are as closely guarded as his wife's figure!!! Good luck to you....

 

With 347 cu it just not going to happen. This is the easiest and cheapest route. Or start looking for 427ls7 from junkyard. If u dont want to spray.

 

If I get a sc do I need to change anything or just bold on

 

Should i still change my heads or keep everything the same way and get a sc

 

If u go s/c and over 500 ur going to need injectors and fuel pump. Literary that's it. Off the top of my head.

 

Maybe a pinned crank would be the only other thing I could think of. Hopefully you are already running a catch can.

But yeah once you have the kit there isn’t much else. I’ve owned two heavily modified forced indiction cars over the years and they are a great time. I enjoy my NA Z06 more than my most recent supercharged cobra but that is completely subjective. If you’re simply on the hunt for HP then $5k on a supercharger kit will get ya there.