Da Z06

See sig. 599RW on SATX summer heat! Mild cam with 19* overlap.

v8sten

BTR Stg 4 NA cam

the fastest na cars run this cam. i personally have it and its a monster

0Myhardtop

Any of our "Widow" series cams will do the job.

Ask me or many others how we know...

www.vette-air.com

Thanks,
Carlos

fueledpassion

Good point. Pfadt's, because of the way they are built, need a very specific type of cam selection - one that has a generally narrow split in intake/exhaust duration and an LSA that is lower. Mine is 112+3, which makes the cam come to life around 2500rpms. A 112+4 or 111 would have been even better but possibly more difficult to tune.

Other than that, tuning is a big issue with cars that are "down on horsepower".

That said, I do not think he is all that low on overall horsepower. 560rwhp on a stock intake manifold and TB...well, a ported MSD and 102 is good for another 35-45rwhp which would put him right on track with all the other setups out there, including ARH & kooks powered vehicles. I don't know about you but if I were able to get my cam/header selection to make 590rwhp, I'd be pleased considering how streetable my cam is. Anything over 580/530 in my book is a great success with pump gas, streetable cams.

I'd be interested in seeing the dyno graph and take a look at the power under the curve.

AzDave47

fueled, not sure if you were looking for my dyno runs but see post #98 here for mine:

https://www.corvetteforum.com/forums...-intake-5.html

Schred86

I looked on your site and can't find any specs on your cams

eb_rat_7

For max effort, your best bet is to work with a vendor and get a custom cam that works well with your setup. Having well paired parts/cam specs will give you better results. There have been a lot of promising results lately with Tony's head/cam/manifold packages, so that could be a good place to start.

For off the shelf:
BTR stage IV is a proven setup and is supposed to be easy on the valvetrain.

The RPM B-3 cam has also put down some impressive times/mph, Fran posted video/slips of a 9.8 at 142 in a full weight car with their head/cam package.

fueledpassion

TBH. I always took your dyno with a grain of salt as it appears to be an anomaly. Making 600rwhp and less than 500rwtq is unusual in a street setup. If it were a high revving, flat plane crank 5.0, I could believe it was "normal" to see that. I never understood what made your car do that.

All that said, when I dyno'd my H/C with no other mods, I made 500/450 heat-soaked @ 88* outside and the power was unchanged until about 3-3.5K, just like yours did.

However, my 1 3/4 Pfadt's picked up boat loads of torque from 2-6K, especially from 2-4K and that is just the seat of the pants feel. I imagine after a retune, if I did nothing else, I'd see close to 500rwtq on that setup alone. Put the ported MSD and CAI on and I imagine 520-540rwtq is attainable. Anyways, not to get off subject but something else I need to point out that I have learned about my cam that makes it unique.

1) Is that the .006 lift is 288/298, which is fairly aggressive - at least seemingly more aggressive than the 236/244 at .050" lift So you need to look at a both lift locations on the cam, not just one or the other. I never understood why people put so much stock in this measurement alone, considering that a camshaft is not a perfect circle and that the lift @ .050" is exactly one spec and one spec only on a camshaft that constantly changes. In my cam's case, it is asymmetrical and a single point of measurement cannot tell you anything significant about how that cam will perform on the street OR the dyno.

2) The advance in the intake side makes a difference where that power is made but certainly affects tune-ability.

3) The most important perhaps, is that my cam is ground in such a way that the ramp rate is aggressive - (the little curve that indicates how quickly the cam reaches peak lift) - mine resembles that of a solid roller cam. Not quite that aggressive but pretty close. And as such, the car behaves in a violent manner @ WOT. It also gives the car an unusual lope. Choppy at times but usually it "gallops" in concert. My engine builder spec'd the cam to open violently but close more gently, with a change in the rate it closes right before the valve touches the seat again. This was intentional to avoid hammering my valves - a longevity concern I guess you could say. This same cam has made 590/560 on Pfadt 1 3/4" headers with stock intake manifold and TB. Sounds impossible, I know. But there are others that made similar power with the same cam. So I know that if you have a competent tuner, you can really work some major gains out of the LS7 with a very modest cam selection. No need in having 260/280 splits to get power. The goal is to get the engine building torque and using it's multiplying factor to build more torque, sooner. You end up with a fatter power band and one that holds it's own up to a certain RPM. It is so common to see people over-camming their cars and never really taking advantage of the full potential of the lift these cams have.

A really well made cam can easily cost $600-800 cam only price if done right because there are so many things that should be looked at other than the .050 lift specs and LSA. Those matter but they don't address everything.

AzDave47

The only change in my build from most others with the K501, MSD, NW102 was the Pfadt 1 7/8" Tr-Y headers. Several forum members and Katech indicated low torque numbers from this particular header on medium cam builds like mine. The other "anomaly" was that most builds with that cam peak at 6600-6700 RPM and mine peaked at 7100 RPM. I saw one of the earlier tuner dyno runs that was similar down in the torque area, a little higher but then the tuner backed down the A/F ratio for an extra margine. I don't know if having the dyno runs and tune done on 91 octane unleaded had an impact. The "after" dyno runs were done in 93-94* heat, but SAE corrected, ~ 5% increase over uncorrected, which is why the stock injectors were able to keep up. The majority of my performance events will be done at 1200-6000" altitude.

The same dyno was used before and after. The before results virtually traced stock dyno runs done on another dyno.

This weekend I should get a read on the performance gains over stock as I'll be doing the No-Fly Zone AZ 1/2 mile roll races. Stock with an honest 40 MPH rolling start it typically trapped at 154 MPH.

MTBSully

Anyone have any experience with the cammotion low lash solid rollers? Or solid rollers in general? I know i'll have to run a different style rocker at the least.

Also, thoughts on the callaway honker intake? Are there better ones out there or should I be good? I feel like an air intake is an air intake.....but ive been wrong before.

MTPZ06

Callaway Honker is a fantastic intake...ran it on my C5Z which made great power. Only reason I didn't put one on my C6Z is I have the factory tune. You'll get MAF turbulence/surging on a stock tune. I went with the Halltech MF103, because it's compatible with the stock tune...and I don't feel it's really a compromise, since Katech uses Halltech intakes. Money no object...LG's Super Ram is a work of art. Essentially a Callaway Honker mated to a Varam...IMO. There was a guy recently trying to sell a Honker in the parts forum...I damn near wanted to buy it myself because he didn't have any offers. Not sure if it sold though.

RobGOV-DCZ

I am running a Cam Motion low lash solid roller. PM me for details.

MTBSully

Ive currently got the honker on my car. Just havent seen too many people running it so I wasnt sure. That LG is insane, $1700+!!!!???

PM coming

MTPZ06

Stay with it for sure. A few do, and I most certainly would have if I was tuning the car. Dan the C5 man runs one, and he tracks his car quite a bit.

Yeah, the LG is artwork...expensive, high-end artwork. Its all Carbon Fiber; which LG said was necessary for it to keep its shape under speed...if it were plastic, it may cause the inlet area to collapse on itself or distort. Josh B picked one up for his current build...looking forward to his reviews.

v8sten

take it as you will but here is a built 441 lsx w/ fully worked over Brodix BR7 heads and no idea on the cam making 695 to the tires (camera car) vs me in my FRH Stock ported/ milled heads and BTR Stg 4 cam with full exhaust (Silver, stock intake, injectors, tb, sbe).

@ 0:35

meinersk

Picked up 17rwhp on 50 water 50 meth spray....300 dollar kit...i installed free...id lkke to see what i get from 93 and 100percent meth with my compression bumped. ....

v8sten

my car (silver in video) was supposedly 12:1 and running 93.

MTBSully

All of my e85 stuff showed up. Will start a build thread soon

rio95

Looks like that dude had a very happy dyno.

RamAir972003

LOL 695 my *** more like 560 that's what people would tell me around here in making 620 plus on pump gas blah blah blah till we run then I pull on them not naming what vendors they used, lets just say it was disappointing and I'm in Dallas with lots of good shops....happy dyno for the win....