Marks S12 Grand Prix

[alundra]

Not bad at all!

Hope you can find your trouble of your richness.

[sunny1600]

I dont think it is something we can fix easily. With a decent mapping but that is it not worth with this old n/a engine/ecu. It is running rich when on throttle. When turbo engine is build it will get a good map. For now just clean the back off the car more often

[sunny1600]

Today a friend of mine made some pics of the Grand Prix.
Here is a preview







I have made some pics myself. These are the best I made.

[GoSP]

Nice pics mate

[sunny1600]

Thanks.

Bought some small upgrades





Solid steering rack made by David Carroll. Explanation of the use. Passenger side solid mount whether RHD or LHD. The stock driver's side mount basically just has to keep the rack from twisting once one of these is installed. It locks the rack down and keeps it from moving side to side. Stock it's a really soft and squishy rubber bushing that doesn't do much when compared to the driver's side. With stock mounts the passenger side does probably 80% of the lateral locating of the rack but the rubber still flexes and lets the rack move some. The solid passenger side mount eliminates all of that movement.These are machined from black Delrin and eliminate ALL lateral movement of the steering rack under turning/cornering loads. Even if your stock rack mounts are in good condition you will be amazed at how much more direct the steering is with one of these installed. A T/C Kit and one of these solid mounts are the first two mods I would do to any S12.









Tension/Compression rod bearing kit made by David Carroll. T/C Kit: I have produced a UHMW / aluminum ball & socket assembly to replace the forward rubber bushing in 510s & Zs for at least 15 years. The 'T/C Kit' as it's known is usually the first handling modification done to any of these cars. It's a cheap, easy way to make a major difference in the handling of the car, especially under heavy braking. What it does is eliminate ALL fore-aft movement of the front wheel under braking and cornering loads. This is done by replacing the forward rubber bushing with a mechanical joint. The rear rubber bushing does not need to be replaced unless it is cracked and at risk of falling out. This is because all the rear bushing does is apply pre-load to the T/C Kit's ball & socket to keep it from rattling. The rear bushing is NEVER compressed further except while braking in reverse, and it handles that just fine.

Keep in mind that the stock two rearward rubber bushings are retained with a T/C Kit. All they really do is preload the ball & socket joint but they do have to be intact enough that they don't fall out! They are compressed slightly when braking in reverse, but otherwise they're only job is keeping tension on the ball & socket. If your bushings are crumbling you should get two new rubber bushings and replace them when you install the T/C Kit. They are cheap from Nissan. You should NOT use polyurethane bushings with the T/C Kit as they are too stiff.



Last month I went for a drive with my friend Stefan. He also has an S12.











Also did a photoshoot with DomasM in Rotterdam.

Every picture are some pictures combined to get this result.























I am waiting on the pictures made by RoyZweers. You will see them pop up later.

This weekend I have the last ride of the year planned for the S12. Afterwards the S12 Grand Prix will be in the garage for the next three months looking like this.

[kohshin]

[sunny1600]

07 Juni 2015
Few upgrades to the S12 Grand Prix, only mounted a solid steering rack made by experimental engineering/ David Caroll. Off course the thread was worn because of some rusty bolt. New thread, new oil and filter and that was it. I still have the S14 4 pot brakes that I should really install on the car, as should the PU bushes from Energy suspension I still have collecting dust.
Not many upgrades, but I have been cruising with the GP. With the Dutch SXOC I went to Japfest at Zandvoort Circuit. I took a German friend from the sxce.org with me and he had a great time.

Some awesome pics





The next weekend was the weekend I was really looking forward to.

ROADTRIP!!!!

Just like last year we decided to go to Japfest 1 Castle Combe in the UK. My buddy Mike and I decided to go a day sooner so we had an extra day to chill at the coast in the Torquay area at my mates Taz place. So we decided to leave really early in the Thursday morning...........
To get in a huge traffic jam at the E34 even before Antwerp. So we decided we went a bit offroading leaving the highway and find ourselves another way.




As to be expected there was a bit of rain. It was England off course!


Around 18h UK time we arrived at my friend Taz which I know from the NPOC. He lives near Torquay at the English coast. Stunning environment, lovely roads and we had great weather. What else can you wish for??? Right! Beers!! And we had a lot off those.




And Full English



Saturdaymornings early departure took us to Castle Combe. We did a premeet with the Primera OC (NPOC). Did some tracktime which was great. I had bought 3 sessions. This year it was devastating warm (well for UK standards that is ), so it was a 1000 times better than last year when it was raining cats and dogs. Unfortunately my second sessions was over way to soon due to a red flag. 35 pounds for 5 minutes of driving time.. ouchhh.. expensive session. An EVO had his rear bumper in flames and a honda decided to be a lawn mower. Plus there was an extensive amount of debris on the track. I did found out it is a really fast track, something you notice better when pushing harder on the track.












Spotted some other S12’s on the paddock.



After the event we drove to a hotel nearby Castle Combe. Decided to celebrate a good weekender with a shitload of beers and steak. In the end I did drive 1800 km’s that weekend and also the FJ20 decided to use 2 liters of oil.



And a more recent picture of me and my mate Chris with his S13 SR20DET.



Planned short term fun time with the S12 Grand Prix.

27 Juni Tracktime at Zandvoort Circuit
http://vrijrijden.nl/

4th and 5th of July to the Nordschleife / Nurburgring

16th of August tracktime at Rockingham during Japfest 2
http://www.japfest2.co.uk/

If its possible I would also like to go to Zolder Circuit for some laps. Not many updates but the S12 is used for what it was built. Driving it with a big smile, preferably on a track off choice.

And a small video of me at Castle Combe to Finish off.
https://youtu.be/8yFbsTAGrkI

[alundra]

Every pic is gorgeous!

Thanks so much!

[GoSP]

Thanks for sharing Mark ! Maybe one day we will go with you !

[sunny1600]

Last winter the S12 Grand Prix has been stripped and rebuild cosmetically. The widebody panels have been removed to fix the always present rust on the rear arches (typical GP problem). The right rear panel was the worst and needed to have a new wheel arch welded in.




















After the painting. The car has been painted in two steps. First the whole of the car in white. And a few weeks later the accents in black.

[sunny1600]

Furthermore fenderbraces have been made and also a fibreglass hoodscoop.
Also fitted are a JDM RS-X grill and an SE fibreglass spoiler to replace the foam ducktail sponge.





All hollow spaces and the underside of the car has been tectyled.

I also put on 25mm spacers on all fours. This is needed for the S14 brakes combined with the Gotti wheels. It also makes the car look better with the extra 25mm each side. Soon the S14 brakes and yellowstuff pads wil be mounted.

After the rebuild in march/april I went to Japfest Silverstone (national layout) and Japfest 2 Donington Park (national layout). Damn Donington is a nice track to drive. Last time I was there was in 2012.







I had some problems with my exhaust studs. One was missing and two broken so I had some exhaust gasses coming out near the 4th cylinder. Engine removed and fitted some helicoils as the the thread was missing. Also I had a cracked manifold. Thankfully I have some spare so that was a quick fix.




Latest project was to build in electrical windows.






And this is how the car appears from time to time.

[alundra]

Still so nice!

What about the mileage of your FJ20E?

[sunny1600]

I think the chassis has done 232ish.
Engine got swapped in after i blew the first one. So unsure about that. But it has been running ok for 50k i guess?

[seb.racing]

les modo, vous voulez pas redimensionner ces photos

[Maskym]

les modo, vous voulez pas redimensionner ces photos

C'est fait

[alundra]

Merci Maskym