Firehawk's N2 racecar project

[firehawk]

Rossi Wrote:Will you be willing to sell me a front lip when you get the parts made?

That should be possible. The FRP guy can make all the parts of the N2 kit so I could ask him if he could make one extra front lip and sell it to you.

Ok, making some progress with the car again. First of all, the brakes are now all done and working, although they still need a good bleeding. I replaced the front discs, all pads, lines and hoses. The 195/45R13 Conti Sportcontact front tyres also arrived but I haven't had them changed on the rims yet.

So far the engine has been completely stock, with the exception of a 11.2:1 compression ratio and some porting and polishing. To slightly bring the engine up to speed, I installed a pair of Schrick group A camshafts with 296 degree duration and 8.6mm lift. This particular pair of cams was originally owned by none other than the former F1 driver Jyrki Järvilehto! They were used in a gr.F AE86 rallycar which he raced at the "Tunturiralli" rally in 96-99. These cams are pretty close to the "magical" 9mm limit where under-bucket shims are required, so I'll probably go for stiffer springs and 1SZ-FE buckets later on.

I also reworked the exhaust system a bit by swapping out the original manifold in favor of a Martelius 4-1 manifold. I also added a small-diameter absorption muffler to cut the high-frequency noise a bit because test running the engine, even for short periods, makes my head hurt.

A bit of enginebay bling in the form of a set of velocity stacks was also added.

To fill a big hole at the rear of the car, I got 8-gallon (~30l) RCI safety fuel cell with foam and an aircraft-style filler cap. It's actually a bit deeper than I originally intended, so I'll need to modify my rear bracing to mount the cell slightly lower. Once the cell sits at its location, I'll start working on building an aluminium enclosure around it.

Finally, I found a second hand Sparco Pro2000 FRP racing seat in excellent condition and as extra, also got a pair of sliderails and side mounts - both from Sparco as well. I'll need to modify the mounts on the car a bit to bolt on the rails, though.

My fingers are really itching to get that fuel cell installed but no work on the AE86 this weekend - our first endurance race of the season with the CRX this sunday at Botniaring.