500 RWHP recipe

[Teeth]

I know I won't be able to get that exactly, but it's my current goal with the car. It is an automatic SS, so I know I'm going to lose HP from the start.

Things I have:
Kooks longtubes
X-pipe with Pypebomb axleback
K&N cold air intake

Things I need:
Tune
Nightfury cam kit
Throttlebody?

Is there anyone else out there with a few tips? I've been told from multiple people that I wouldn't need a new throttlebody, and others say I would need one so the cam isn't suffocated.

I called up a shop to see how much it would be to install the camshaft, and it came out as 1800 just for the labor, an additional 300-400 for gaskets and such, and the tune they could do would be 500-600. Kinda ridiculous I think, I'll end up doing it myself, lol.

[Rons1le]

Nick Williams 102 throttle body
Fast 102 intake
Ported heads
E85
Needed to get you 500rwhp

Sent from my SM-G960U using Tapatalk

[pnwdan]

Auto or manual?

Pretty easy to get a manual there. Auto...not so easy.

My 14 manual made 495 without any throttle body modification.

Each car will make it's own numbers depending on a lot of factors. I think if you do a cam and have it dyno tuned you'll be happy with it no matter what numbers it puts down.

[Rich2010]

Look up a GPI rod mod intake, don’t waste money on the fast unless you’re spinning far over 7000. Heads, big cam, and all the supporting mods might get you close but that’s a big chunk of money. Could just go with the nightfury/BTR stage 4, and good converter, rod mod intake and have a street car that’s a ton of fun.

[Yellow 1]

Cam, heads, tune. Message ends.

[Teeth]

Originally Posted by Rons1le

Nick Williams 102 throttle body
Fast 102 intake
Ported heads
E85
Needed to get you 500rwhp

Sent from my SM-G960U using Tapatalk

Ported heads, something like this?

Originally Posted by pnwdan

Auto or manual?

Pretty easy to get a manual there. Auto...not so easy.

My 14 manual made 495 without any throttle body modification.

Each car will make it's own numbers depending on a lot of factors. I think if you do a cam and have it dyno tuned you'll be happy with it no matter what numbers it puts down.

It's the automatic, the L99.

Originally Posted by Rich2010

Look up a GPI rod mod intake, don’t waste money on the fast unless you’re spinning far over 7000. Heads, big cam, and all the supporting mods might get you close but that’s a big chunk of money. Could just go with the nightfury/BTR stage 4, and good converter, rod mod intake and have a street car that’s a ton of fun.

What is the difference between the intake manifolds, why would the Fast be upwards of 7000? And they come with a new throttlebody I'm assuming? Also, what torque converter would you recommend?

[Rich2010]

The FAST is a $1000 intake and then you’ll probably want a throttle body. I was saying I wouldn’t spend that kind of dough unless you planned on spinning 7000+ RPM. The GPI rod mod is around $400 including porting if you send yours in for a core. Our heads are pretty good stock, so unless you’re going max effort and trying to squeeze every ounce of power I personally wouldn’t bother.

Converters are typically Circle D, Yank, or Coan. It’ll be ordered to match whatever cam you pick. I’d get with a reputable builder or company and explain exactly what your goals are and go from there. Just throwing money around isn’t the best route, and sometimes you might have to spend it twice.

A cam swap will probably entail new lifters for you as well, which requires head removal, all this adds up to extra $$$

[gm2376]

a cam, heads and tune will not get you there alone with the mods you have and E85 is a waste unless you are adding boost. Add a gpi rod most ported intake and you will get close.

[weSS1LEy]

And make sure the dyno graph is in STD not SAE lol ! There’s 20 hp right there. Seriously though I’m trying to make a bit more power so I’ll keep an eye on the suggestions here

[Chris49066SS]

Have a look at my build thread, it has all my mods, I am at 483rwhp. The link is in my sig. I'm L99, just like you

[Teeth]

Originally Posted by Rich2010

The FAST is a $1000 intake and then you’ll probably want a throttle body. I was saying I wouldn’t spend that kind of dough unless you planned on spinning 7000+ RPM. The GPI rod mod is around $400 including porting if you send yours in for a core. Our heads are pretty good stock, so unless you’re going max effort and trying to squeeze every ounce of power I personally wouldn’t bother.

Converters are typically Circle D, Yank, or Coan. It’ll be ordered to match whatever cam you pick. I’d get with a reputable builder or company and explain exactly what your goals are and go from there. Just throwing money around isn’t the best route, and sometimes you might have to spend it twice.

A cam swap will probably entail new lifters for you as well, which requires head removal, all this adds up to extra $$$

I guess it all comes down to how much money I want to spend then, lol.

I thought I could get away with it by just adding in the cam and headers with a tune. Now the throttle body and intake are on the list too, as well as the converter.

Now on the lifters, there is a certain kind I need for the cam I want, right?

Originally Posted by Chris49066SS

Have a look at my build thread, it has all my mods, I am at 483rwhp. The link is in my sig. I'm L99, just like you

That's a lot of work you did on it man! I guess I'm trying to do the minimum amount of mods for the maximum gain, so going the extent you've gone is kinda out of the ballpark. What are your thoughts on Cam, headers, intake, throttlebody, lifters and converter?

[Black_SS10]

I did whats in my sig. 470whp shy of 6600rpm on a mustang dyno AKA the heartbreaker. She is a absolute blast to drive.

[Chris49066SS]

Originally Posted by Teeth

I guess it all comes down to how much money I want to spend then, lol.

I thought I could get away with it by just adding in the cam and headers with a tune. Now the throttle body and intake are on the list too, as well as the converter.

Now on the lifters, there is a certain kind I need for the cam I want, right?



That's a lot of work you did on it man! I guess I'm trying to do the minimum amount of mods for the maximum gain, so going the extent you've gone is kinda out of the ballpark. What are your thoughts on Cam, headers, intake, throttlebody, lifters and converter?

Thanks, I have been shooting for 10s on stock heads as a short term goal.

Cam - My thoughts on this are to go with a cam that suits your needs with what route you take, and thats going to depend on type of boost and intended usage. Whether you're going PD blower, centri, turbo, NA, nitrous, and whether you're looking for less/more street manners or more of a dedicated strip/track car. And as always, it needs to be matched to the converter, with respect to powerband. For the 500rwhp, its going to be best done by going with one of the aggressive hydraulic roller camshafts like the GPI SS4. They have a kit with the necessary supporting hardware.

Headers - 1 7/8" will be fine up to 650rwhp but if you are planning anything beyond that, 2" headers won't restrict you. I'd go 2" then you have more room to grow into higher HP levels down the road.

Intake - the factory intake manifold is hard to beat up to 6600 RPM. If you are staying in more or less the factory RPM operating range, then a GPI rod mod would be good, provided that you are staying NA, as opposed to FI, due to the epoxy that is used. If you are looking to spin past 7k RPM and to get the maximum top end horsepower, you may consider one of the aluminum manifolds with short runners i.e. LOD, Holley High Ram, CID. Those Fast manifolds come with a normal length runner and a shorter runner and they are composite so they don't hold heat like an aluminum manifold, but if you look at GPIs manifold shootout/comparisons, the Fast couldn't hang with the aluminum manifolds. But those manifolds are really suited to high RPM setups, and have certain things that you'd have to alter on the car (hood, firewall, windshield wiper, etc depending on the manifold, except the LOD, that fits under the hood with no modification) and then your powerband will look something like this.



Throttle body - I have a stock throttle body, and am planning a Nick Williams 102mm. The LOD was not tested with a stock throttle body in the GPI Intake Manifold Shootout last summer, but both the Hi-Ram and the CID picked up large gains on the engine dyno, so when I do mine, I will be sure and post up the before and after chassis dyno results, as well as the track times.

Lifters - I have the GM performance lifters, but will likely be going to a Johnson slow leakdown short travel lifter at the recommendation of my shop. GPI steered me away from a solid roller setup with the Procharger so I will be following their build recommendations.

Converter - Again, this needs to be matched to the cam and drivetrain. With the GPI SS4 cam, 6L80 transmission and 3.91 gears, the Circle D 5C converter is a nice combo. When I go TH400 transmission, I will go to a 6000 RPM non-lockup converter and a trans-brake.

I have made a number of videos so that I could show what its like, everything from daily driving conditions, showing what the tach and speedo are doing, also with runs from 50-95mph and 0-75mph, to passes at the drag strip.

[Athletics101]

I’m auto I made 466 on cam and head work we milled the heads .015 also. There are a few mods I could have done to make more power but I wasn’t hunting a dyno number. If you do an intake/rod mod, and under drive, and E85. You can probley hit 500 for the sake of conversation.