Thread: Uh-Oh!!!!

any updates guys

I have one of the original sets of 184C cams as Kelford used my motor (and possibly others) when developing them. They are not the same cams that were being sold in 2007 as the cam grind wasn't even finalised until early 2008.

Since putting the car together & running them in, the car has been on the dyno once & made 138.9wkw @ 7,200rpm.

As a comparison Amdeman's N1 equipped car made 139.9wkw at just over 8,000rpm.

Amdeman had customised Fujis (shortened secondaries) & a 3" exhaust & I had customised Fujis with a Burns collector welded on with a combination 3" into 2.5" exhaust.

My experimental exhaust robbed power (probably 'cause I specced the venturi on the Burns too small at 2.25") & so the next step is to sort that & then play with cam timing.

I'm confident that there is more power to be made for sure... I'm certainly peaking too soon at the moment & my engine builder wants to play with cam timing (as Amdeman is doing now with his N1s).

This stuff starts to get real expensive so I haven't done anything for a while but will finish the testing in the near future.

I'm using SOTP as my guide with the cam timing thing.
We're being VEEEEEEEEEEEEEEEEERY slow, and deliberate with it, making SMALL changes every time; it's driving us insane, due to the length of time to alter, one cam at a time.

Better that than BANG! CLATTER! CLATTER! IMHO.

I'm driving it for an entire day with every change, so that the ECU has time to adjust, and I can run it through a multitude of different loads, at different points, and revs.
The guy that's helping me lives a distance from my home, and I get a chance for motorway (low rev high load), and town (higher revs, light and heavy loads), as well as constant and 'between the lights' acceleration.

We degreed the kelfords in a motor we put together on a stand.

We still need to chat with kelford about their spec sheet before we can put it in the car.

We also discovered that my valve lash (shim clearance) is drastically altering the profile of all the cams ive run and subsequently hurting my power making potential.

I need to reshim my head then dyno with N1 cams then swap cams.

it's extremely time consuming luckily i know where to get shims from 2.0mm to 2.65mm

Reshimming the head is something I don't look forward to doing.

it's semi-time consuming but as long as you have a feeler gauge and something to turn the crank it's not that bad. I may take off the wheel just to make it easier.

finding the correct shims can be problematic

Hey, where are you getting your shims? You can PM me if you like

Someone needs to talk to Kelford and have them make these cams on Nissan standard base circles. ( This is a must )

This would make things very simple for everyone.

Off topic, my apology to donttazmebro.

Really,

Why dont you talk to the Donttazmebro and the man who is doing the testing for him Charles Dundon and he will tell you the base circles on the cams are off.

You are stating a given any time you do a valve job you will have to reshim the head on a VE.

But.....

I will tell you this, with any VE head that has been reshimmed after a valve job with say stock SR20VE cams, the SR16VEs, N1s and 20Vs will bolt right in without any need to be reshimmed.

Now, why dont you ask Charles Dundon if this is possible with the cams that Donttazmebro has now.

Maybe we will get him to chime in on this.