Aftermarket Cams

[honeybadger]

I’ve yet to see anyone provide any power gain on a set of voodoo heads.
I seen a FB member with a new voodoo build and his rwhp was 538 rwhp with claimed ported heads.
His stock baseline was 467 rwhp.

He added Kooks headers catless.
Eliminating the cam phasers.
Dyno tune.
Port and polish heads.
Full engine build for durability. (Rods, Pistons, rings, bearings, sleeved cylinders, etc)

In my opinion porting the oem voodoo heads isn’t needed while running stock cams and induction.

Important to keep in mind that John is running 538whp with 93 octane pump fuel. That's pretty damn impressive.

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[Dominator961]

I under stand. But he also made 467 rwhp bone stock.
So basically with headers, catless, porting, eliminating cam phasers, tuning, on 93 he gained 71 rwhp.
But the thing is, we don’t know what the port work gained because to much was changed at once and different day, different dynos.

I baselined 454 rwhp on 93 bone stock.
By adding just long tubes, no cats, on stock mufflers on 93 and tune pulled 512 rwhp.
On 100 octane and a revised tune pulled 535.
All with stock cai and air filter.

On E85 / race fuel John should gain 18-25 rwhp depending on tune.
I’m curious what the eliminating cam phasers gained.

 

[honeybadger]

I under stand. But he also made 467 rwhp bone stock.
So basically with headers, catless, porting, eliminating cam phasers, tuning, on 93 he gained 71 rwhp.
But the thing is, we don’t know what the port work gained because to much was changed at once and different day, different dynos.

I baselined 454 rwhp on 93 bone stock.
By adding just long tubes, no cats, on stock mufflers on 93 and tune pulled 512 rwhp.
On 100 octane and a revised tune pulled 535.
All with stock cai and air filter.

On E85 / race fuel John should gain 18-25 rwhp depending on tune.
I’m curious what the eliminating cam phasers gained.

My understanding was the phaser lockout was done for reliability, not power. Don't think it adds power, but could be wrong. When I spoke with John previously, he also mentioned that his tune is fairly conservative given his intended use.

Would be cool to see what just the head porting is worth.

 

[Competition Orange]

Also he didn't have a before dyno, he used the stock Motor Trend Dyno from their gt350 video.

 

[nastang87xx]

My understanding was the phaser lockout was done for reliability, not power. Don't think it adds power, but could be wrong. When I spoke with John previously, he also mentioned that his tune is fairly conservative given his intended use.

Correct. He wanted to ensure when he was running high RPM applications on track that the cams would be phased and stay phased and didn't want to worry about the TIVCT potentially failing.

As with his car, I would probably end up being a touch conservative on the tune as well.

 

[Dominator961]

Then that’s not accurate at all then.

 

[nastang87xx]

Which part

 

[honeybadger]

Had a lengthy chat yesterday with JPC about cams - particularly Comp Cams.

Aaron's sense was 12-18 months out (realistically). He did say that they (meaning JPC/RGR) are confident they could give the necessary specs to get custom cams ground, but they'd have to be fully custom billet cams since there are no cores available to start from. Cost is expected t be 4-5K for that. Ouch.

 

[Dominator961]

Had a lengthy chat yesterday with JPC about cams - particularly Comp Cams.

Aaron's sense was 12-18 months out (realistically). He did say that they (meaning JPC/RGR) are confident they could give the necessary specs to get custom cams ground, but they'd have to be fully custom billet cams since there are no cores available to start from. Cost is expected t be 4-5K for that. Ouch.

I just asked comp cams again on IG and they again said no. Not worth their time to invest on cams for a voodoo they said because of small production numbers.
They still believe gt350 owners are swapping to cpc. I just laughed at them.

 

[nastang87xx]

Cost is expected t be 4-5K for that. Ouch.

Fornicate that sound of random pitches at annoying intensity levels...

(Fawk that noise)

 

[JJ]

So we probably wont ever get cams on these cars, damn what a bummer

 

[nastang87xx]

So we probably wont ever get cams on these cars, damn what a bummer

Not exactly accurate....

 

[Dominator961]

Not exactly accurate....

Either way, the cost and labor probably isn’t worth it.
I’m a Naturally aspirated guy, and would probably buy them and install them if the gains were good enough.

 

[sumfoo1]

Should we have a millenials with gt350s club?

In for big cams when they come up.

Thanks.

Well this is awkward...I'm a millennial too

But seriously, they're coming. The problem that manufacturers have been having is suppliers dogging them for cores. They've been nearly impossible to get. Since we're going down that road, I'll open the can of worms, Comp Cams, L&M Engines, Frankenstein Engine Dynamics, and Livernois have all been waiting for batches of cores. Comp said they'd grid anything from a bare rod but they'd need to have all specs and it'll kinda be on you to give them accurate info. Or bring your cams to them so they can take measurements to make their own core. L&M is actively working right now on lobe profiles. FED and Livernois I believe are both on hold.

EDIT: I wouldn't go calling any of these guys up right now and bombarding them. I'd say wait at least until mid spring.

 

[nastang87xx]

Either way, the cost and labor probably isn’t worth it.

We're gonna find out. Honeybadger I believe will be the first to take the plunge probably within a few months perhaps.

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