Brian Crower Stage 1 Cams

[Fabron757]

Humm I have 3inch exhuast. Wonder what my car would sound like. So they only tested a stage one cam? I need that 9k rev lol

[TRD_07]

Originally Posted by mad_sb

So, these cams were designed with boost or NA in mind???

IIRC, these were designed with boost in mind and NA cams will be in the works.

[lexusb3]

Y'all made my day that's all I been waiting for didn't want to open the motor twice. Build thread now will be in the making !!! Can't wait to see the updates

[arghx7]

Originally Posted by DAMotorsports

I will check and see if we have more photos of the lobes. As for the Duration and lift, we are unable to release this information at this time. But we will provide the information as soon as we are given the OK.

Also, please release

Intake Valve open event @ 1mm lift (or .05" if you want to do it that way)
Intake Valve Close event
Exhaust Valve Open event
Exhaust Valve Close event

Cam centerlines at AVCS most advanced and most retarded position

and if possible equivalent values for the stock cams.

What would really be nice is if you can give cam angle vs lift for each cam in a .csv file so we can actually see the ramp of the cam grind between stock and the aftermarket cams.

Also, please provide any durability information you have done on the high pressure fuel pump cam. Do you have a motoring test rig or a firing engine running durability schedules? I don't think anyone here wants premature failure of their high pressure fuel pump. Even copying the stock fuel pump cam love doesn't guarantee long term durability because the dynamics of the cam change when all the other lobes are different.

[The Slow One]

nice! can't wait for NA numbers! Too bad it not on a stock unported head

[mad_sb]

Originally Posted by DAMotorsports

...
At that point, our car was already equipped with the base AVO Turbo kit with a 6PSI actuator. We produced 205WHP and 170WTK on a Dyno Dynamics (15% loss from a Dyna Jet). During the research, we found room to further improve the heads with port work and springs to support higher RPMs along with higher lift cams.

..
The conditions to our testing were to remain at 6PSI and stock exhaust, but we were allowed to implement our newly ported heads and replacement springs.

..We were very happy to see a 9.3 increment on the WHP (214.8WHP) and +20WTQ (190WTQ). .

So, the 214.8whp plot includes the cams AND the head work?

I Imagine this is a mild grind.. then again your exhaust could be a huge bottle neck at this point. Good data point for sure, but I have a feeling just a 3" exhaust would have gained you more than the cams and head work did (except for the big gain at 3500 or so). Not bashing the numbers, i used to tune on an uncorrected DD so I know the numbers well.

Regardless, good first steps in developing some cam options for us.

[mid_life_crisis]

It's pretty well established that the stock exhaust becomes an issue at high rpm.
Love to try these with hi-flow cats, a better axle-back and a high stall converter. I'm thinking my automatic might become a lot more fun this spring without having to resort to FI.

[mrk1]

nice, I don't want to build a motor till cams are avalible

[lbroskee]

Originally Posted by lexusb3

Y'all made my day that's all I been waiting for didn't want to open the motor twice. Build thread now will be in the making !!! Can't wait to see the updates

now the only thing still kissings is a stronger crankshaft

[AdrianG]

Originally Posted by lbroskee

now the only thing still kissings is a stronger crankshaft

How much power are you planning to make? From what I've the stock crank can hold a lot of power (600+).

[arghx7]

Just keep in mind guys that people measure their cam durations and lift like they measure their junk. The bigger number is always better, and nobody's sure exactly how the ruler was positioned.

If I open a service manual for the BMW N20 engine, their 2.0 DI turbo engine with continuously variable valve lift and dual cam phasers I get this diagram:



I can see the full grind of the cam there when the Valvetronic is in full lift mode. I can see the actual centerlines at the limits of the phasers rather than a calculated value. I can infer how the durations were calculated by looking at the listed duration and looking at the grind of the cam.

This is the information needrf from the vendors to make a fully informed decision about camshaft options. It's more than a silly listing of numbers and abbreviations that you would see plastered all over LS1Tech.

[lbroskee]

Originally Posted by AdrianG

How much power are you planning to make? From what I've the stock crank can hold a lot of power (600+).

for now not sure, but I'm just thinking ahead. would rather only open the block once. in the end of it all i think i want to sit around 700 (350 on my stock block with boost and then double it after i go built)

[Guff]

Sub'd

[fooddude]

Originally Posted by TRD_07

...and NA cams will be in the works.

This!