Update on the run-in

Friday, 14 December 2007 | Comments (3) | Categories: Engine, General

Well then, where do I start.

After getting the car registered, and bits and pieces back on it was time for the shakedown. Basically driving around, checking for squeaks, leaks, rattles and hums. There were a few rattles in the doors that have been pinpointed and fixed, along with one on the bonnet (hood) hinge which will require another hinge. We had a problem with the air-conditioning though, where the seals were naff, and after it was gassed up the first time, it all leaked out. The seals were replaced, re-gassed and now it's all good. I went without A/C for a week or so in what was one of Perth's hottest week in the month of November ever. Ugh!

As for leaks, which are all part of the fun, there was one of the factory oil pressure sender, now fixed, and another from the oil seal around the crank pulley. Now this is not to do with shoddy work, but a symptom of the GFB crank pulley being made of aluminium. The oil seal had worn a groove in the soft ally, so the pulley was removed, machined down and sleeved with a harder metal. The team at C-Red have now fixed that all up and all is good.

The car has settled down nicely on the suspension, and considering the fairly hard spring rate of 8kg/mm front and 6kg/mm rears for the Racing Gear JTC'N1 Stage-V coilovers, it's reasonably subtle. I thing it could be made a little softer for street work though but I'm yet to mess about with the damper settings. I also think the rear coilovers are clicking a little bit on some of the larger bumps in the road, but this is yet to be determined.

One of the items I'm not quite enjoying though is the exhaust. At about 60km/hr in fourth, it has a very loud drone that just goes right through the car, and unless you have the stereo cranked, you can hardly hear the sub-doofer. So I'm looking to eventually change over to a nice Tanabe Medalion g-FORDAN blue exhaust which C-Red have in stock.

Now the engine was run-in over a period of about 3-4weeks, clocking up about 1300kms. It was then time to put her on the dyno for her first, but by no means the last, tune. Tuning is being taken care of by Sean and his team at Allstar Garage and the first session was yesterday. After running her up, she made a very laggy 312hp (233kw) at 1.4bar to rear hubs (Dyno Pack hub dyno). After a conversation with Sean, it requires some experimentation with the camshaft timing to bring the power back down to the low/mid-range with as its making boost at about 4800rpm and full boost at about 5800rpm. Once you're into the power though, it's solid and just gets going.

Now how do I feel about all this? Well, I'm not disappointed that's for sure. I mean the car has been completely apart and is now together again in a state that Nissan would not have dreamed of. It's been three years in the making, and a few weeks of trial and error, refining and troubleshooting is to be expected.

Oh, and the Defi gauges are now hooked up, but just not on the dash yet. And I chose to go with a GReddy Profec B-spec II electronic boost controller rather than the PowerFC Boost Control kit. Reasoning behind this is that it has a high/low boost setting that can be easily changed, and you don't need to be a rocket scientist to work get through the menu system and understand how the PowerFC handles boost settings.

Until next week, have a good one.

Cheers
Brendan

Your Comments

Posted by Mr LaG | 4 January 2008 at 04:01 AM

Hey mate, mrlag here from silwa

Just wonder if that boost curve was from a GTRS? as that does seem pretty   laggy ill get you a dyno of mine with stock cams if you like as mines getting tuned on the 11th
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Posted by Brendan Underwood | 7 January 2008 at 12:07 AM

Yeah mate, that was from the GTRS, but as mentioned, the cam timing does need adjustment. Please let us know how you go with your tune too.

Posted by Mr LaG | 7 January 2008 at 12:09 AM

Cool cool will keep you updated as mines getting tuned at All star aswell smile

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