Well they're here, finally. But don't start jumping up and down just yet. The dyno results weren't as expected but there's a few good reasons I'll explain in a second.

Peak hp on the N1 cam was 202.6hp @ 7441rpm
Peak hp on the Franklin cam was 203.4hp @ 7611rpm

Peak torque on the N1 cams was 144.5lbft @ 7000rpm
Peak torque on the Franklin cam was 141lbft @ 7500rpm

There's also another graph that the dyno guy printed out for me which is an acceleration graph, basically if you lined two versions of my car up, one with N1s and one with Franklin cams these are the results you'd get...
it took 5.76 seconds for the engine with franklin cams to travel 155m (basically that's the distance from where the dyno starts to where it finishes) and the N1 cams in the same amount of time travelled 153.9m. Basically that means that for every 153.9m you travel with N1s you can travel 155m with Franklin cams. That is where it's at in terms of track racing imo really.

Now for the reason we weren't pulling the figures we were hoping for. I recently installed a 3" front section, 2.5" rear section with some modified factory headers, at roughly the same time I swapped the N1 cams in ready for the dyno comparison (was dynoing the N1s first this time). Hooked the computer up, all sweet, running a 92% duty cycle on the stock injectors so all was okay. I didn't think I'd be needing that much extra gas on the Franklin cams... WRONG!
On the dyno with the Franklin cams I was running a 102% duty cycle and the car was spiking in it's mixtures (very rich, not very lean). I guess the ecu just opened the injectors right up. Mixtures on the N1 cams were perfect, pretty much a 13 flat right the way thru to max power. On the Franklin cams though the mixtures dipped horribly from about 6400rpm where the injectors started to max out (down to low 12s, high 11s).
I'll post up some dyno graphs when I can find the digital camera. You can easily see where the torque starts dropping as the mixtures richen on the Franklin cams. There's also a big dip in the torque figures as I had the Franklin cams popping too early (ah the things that skip your mind when you're in a hurry, lol).

So basically, the results are conclusive yet not... I managed 202hp out of N1 cams running perfect mixtures, and 203hp out of the Franklin cams running really rich.

So what am I gonna do about it? Well we're happy with what we have out of the N1 cams so those have been scrapped, I've got some cam gears to fiddle around with and I'm on the hunt for some bigger injectors. The aim now is to see what max hp I can get out of these Franklin cams.

Sorry for the hugely long post, I hope you can sift thru it and get the results you're after. I'm happy that the Franklin cams still beat the N1 cams, but not by enough. So it's back to the garage for some more toys to bring that power figure up further. If you have any questions feel free to ask!

James

So basically, the results are conclusive yet not... I managed 202hp out of N1 cams running perfect mixtures, and 203hp out of the Franklin cams running really rich.

James

sounds nice 203 running really rich means room for more ponys and torquy....Id love to see numbers when you redyno

good job

What stage cam did you dyno vs the n1's?

were the f-cams with the valve springs? this is interesting, the n1 cams you speak of are the nissan ones right and are being compared to the ones n1 f-cams made which would be there stage 3?

What ecu are you running? Standalone or ems or neither? Thanks for the dyno #s, at least we have a baseline of sorts. What size injectors are you replacing the 333cc stockers with? You definitely need to think about a full 3" exhaust for the comparison maybe because the N1 cammed VEs over here are all running 3"and if you do change injectors and fine tune w/ cam gears the Franklin cams you installed will need to breathe even more than the N1s. Just a thought......

What stage cam did you dyno vs the n1's?
would like to know this also?

I dyno'd the Franklin Stage 4s. The cams we used were Franklin's N1 copy (for the sake of argument they're exactly the same). I did use Franklin's valve springs, yes.
I would have loved to have gone for a full 3" system but this one is still quite loud and when you live in a country where a police officer can decide your car is "too loud" without any kind of test equipment whatsoever and order your car off the road... You kind of want to keep noise levels to a minimum. I am happy with the results, although the Franklin's didn't pull numbers way and beyond the N1 cams, there is solid proof that they will. I'm on the lookout for some 370cc injectors at the moment so I can get back into some tuning, there's no real point in playing with cam timing just yet because when the power figures start climbing even more I wont have the fueling to support it.

Weren't the stage 3's like the N1 cams though?

Weren't the stage 3's like the N1 cams though?

Yup :)

Nevermind. I reread what you posted and it makes sense now. I just misread something. Everyone, he is saying that he used Franklin's Nissan OEM N1 cams (ie. Franklin bought the stock N1 cams from Nissan at some point) and he also dynoed the stage 4 cams. So you are reading the Stage 4 cams against the Nissan OEM stock N1 cams.

First of all, thank you for dynoing the cams. I know it took a lot of effort on your part to get the cams dynoed. I look forward to future tuning.

I believe Punkoutnz was comparing the Fcams' N1 type against Fcams Stage 4. The N1 cam that he was dynoing is not factory Nissan's N1.

In Layman's terms stage 3 vs stage 4

Yep, stage 3 vs stage 4 but the stage 3 cams is an exact copy of Nissan N1 cams. Here it is extremely hard to get hold of N1 spec cams (nissan wont normally supply them) so Franklin made an exact copy of some that they managed to get hold of so that the New Zealand market (and the US market of course) have ready access to them.

The test needs to be done with a real N1 cam.

The Franklin stage 3 cam is a little bit bigger than the N1 cam.

Here is my question, did you use a stock motor with the stage 4 cams. The reason I ask because I thought I read somewhere that the stage 4 cams needed to be used with pistons with deeper valve notches.

Well I was told the stage 3 is bigger than the N1s so if I am wrong I stand corrected

Well I know I was using Franklin's N1 copy... I could be wrong in saying it was stage 3 but that's what I thought it was...
My engine has a bone stock bottom end. The valves and seats have been cut slightly when I had the head off and yes, I'm using the Franklin valve springs. The cams have no valve/piston clearance issues at all. I heard that rumour too, I'm not actually sure where it started from.
I'm heading off for the day so I'll have to answer any further questions tonight :P

I've got a set of Fcams stage 4 in my hands and have measured them. The specs are very close to the posted spec. If we assume that posted Fcams spec is accurate, that mean the Fcams stage 3 is not an exact copy of Nissan's N1. The Fcam stage 3 is larger in duration but smaller in lift from Nissan's N1.

The stage 4 I have measured out at .472 lift, which is 11.98 mm. The posted Fcams stage 3 has .456/11.58 lift. This is quite different from the Nissan's N1 spec of 12 mm lift.

[QUOTE][The reason I ask because I thought I read somewhere that the stage 4 cams needed to be used with pistons with deeper valve notches.
/QUOTE]

I will find out by this weekend. My engine will be assembled and degreed. I have the 20v pistons which have small valve notches.