murrayis

Yes no problems with VCT. Balance issues solved Same volume as the finger and balanced to bring the weight closer to the centre when bent up into position.

The issue with using a disc is the centre if the cam gear is set back from the front. The 2mm gap is the detection range and the finger needs to within the 2mm

Hi, I thought the same but then I looked at some other kits that just use a longer bolt in the position of the adjustment bolts on the cam gear which weighs about the same as this 1.6mm rolled steel. I welcome professional feedback Cheers

Little more clearance and we'll be good to go!

I plan on testing the balance of the balancer however with the same amount of material being removed on all sides it should not too be much out of the original balance.

CAM trigger finger designs in progress!

Do we know why the factory balancer isn't approved?

Thanks! Yea I've thought if doing that but dint have access to any to compare.

Rs us where I have been getting the sensors for my setup. I machined the slots into the factory balancer

Thanks I'll check that out further. More teeth is easy and the machining time is pretty much the same so if it's 1 tooth or 32-1 everthing is possible

Nah I've taken so much from the community over the years time to give back! Honestly the per unit cost to land them is roughly $50 so plenty in it. I dont want to make money out of this, the idea is to give to those who want but cannot do! I've been building my rb24 for 8 years and been dicked around so much you shpuld not have to go through that.

Ill have the first sample batch next week I hope. Anyone wanting to support the project I can work out a special price for the first run I'm hoping to get the per unit cost to around $90 so the brackets for $180 and sensors around $70 each then all youll need is the chopper wheel and wiring Cheap cheap

ATI have a trigger wheel option so it would just be a matter of adjusting the sensor position.

I know 8 second cars running their factory balancers...

Factory GTR balancer for the win You can pickup a r34 gtr balancer for $20-$30 and the factory units are good for 400rwkw+ and 9000rpm

It is great having toys to mess with to make little things that you can;t just buy. I converted my Mill to cnc over the past year and these are really the only full thing I have completed so far for a purpose. Finally finished the Cam bracket just a little time ago. Didn't run through the finishing passes as these are just for me so the finish is rough

Progress Shots:

The idea around my items is to be affordable for the DIY'er who can work around mounting them him/her self. The kit should work fine on all the dual cam RB series - As I only have a rb20 and a rb25 to test on this will confirm but I don't see many potential issues as they all use the same oil pump and cam gear sizes.

Yea Once I have everything sorted I'll do up a group buy. I've secured some machining prices from China... yes I know but it comes down to cost and have ordered some samples to check quality. I've just started machining my set because I am impatient and it doesn't cost me anything About 10 minutes in with close to 2 hours to go: More progress pics to come.

Thanks guys for all the feedback overnight and PM's. The reason for not going for 12 trigger points is some ECU's cannot keep up with the count, Yes I know with less if the count is lost it takes longer to regain the position however with only 6 points their is alot less chance of losing the count as the ecu can keep up.

The main advantage is alot more stable and clean signal for ignition points to the ecu so you get a smoother ignition timing at high rpms. http://www.msdpromag.com/ct.htm

You are correct Darren

They are Honeywell Hal effect sensors and any aftermarket ecu.

It takes alot to get used to but once you get going you can make some interesting things.

Hi Guys, I've been long pondering the idea of converting my factory CAS based ignition system to a trigger wheel configuration. Upon much investigation's I found that there are 2-3 kits on the market for the RB engine series that range from the basic setup to the extreme where everything in included which in some cases is much overkill. I decided to design my own setup, Having a 3d printer and CNC mill at home I thought how hard could it be - Really. I spent a few hours in CAD drawing up what I would expect to work with my RB20 and a factory CAM gear. Crank Bracket: Cam Bracket: From here I set to work printing them out and dummy fitting the sensors to check my measurements Crank Sensor Mount: (Sorry only v1 image but you get the idea) Cam Sensor Mount: With a few adjustments everything lined up perfectly! The moment of truth arrived and I set to creating the tool paths to cut the parts from aluminium on the mill at home. I've thus far only made the final crank sensor mount. After the above was machined I then set to modify the factory rb26 balancer as the trigger: Once machined I mounted the balancer back to the engine and confirmed fitment of the mount and sensor So this is the progress so far of my Christmas break with a week 1 week down and another to go I hope to have the trigger finger for the cam gear sorted in the next day or so and will post my progress. If anyone would like a copy of the CAD files please PM me I am happy to hand them out and once everything is sorted hope to be able to offer these to people who don't have access to have these machined for roughly $250 a set Your feedback is welcomed! Regards Cameron