Unfortunately, this is already the last part of the long build thread. More on the reasons why, below…
As more or less everything was prepared, I had to manufacture the exhaust quickly. I decided to weld my own downpipe, as it would then fit and perform ideally.
The result did please me and showed to be very effective. I added a flex bellow to keep things from cracking. The rest of the exhaust system I then made up with 3.5″ stainless steel tubing.
Which was a pleasure to weld and develop, since the S13 provides a lot of space. Except the region around the driver’s feet. With a moderately lowered chassis, things get quite narrow with an 90mm tubing under there.
After approximately 9 months of building, the car was now ready to be test driven and mapped. This was all done with the valuable help of my friend Martin S sitting to my right, with a laptop on his knees… 🙂
The car turned out amazing. It performed incredibly strong and proofed to be extremely durable at trackdays. We succeded to achieve a good 500hp and 550nm of torque with a healthy redline of 8400rpm. The powerband is somewhat wide, turbo spools at 3200 up to redline with no hesitation. One can imagine the pleasures the S13 provides to the driver 🙂
From now on I took the S13 to almost every trackday available through Speed-Industries. Also to quarter-mile or show events.
It was able to be beaten the whole day long at high rpms and take no harm. A really reliable setup.
What amazes me the most, is the amount of stress, rpm and horspower the stock bottom end of the RB25 is able to cope with. I mean that is double the horsepower and torque and ~2000rpm higher redline. This for the last 2 years, 18 trackdays and approximately 20’000kms.
The S13 might not have had the best weight distribution and refined steering or suspension, but it was fun to drift and mess around. Too much fun! So I never really bothered optimising anything…
It really was at home in Anneau du Rhin, where you can both drift and grip at Speed-Industries trackdays.
This is also where possibly one of the best shots of the car was made ^
The interior stayed quite comfortable, although the ride was very rough due to the 2-way LSD.
Also snow drifting was kind of fun, although I needed 10% of its power… hehe
The above pic shows the last trackday the S13 performed. After having thought about its future and the potentials and reliability of the engine, I decided to look for an alternative chassis.
The Silvia was an extremely interesting and instructive project and never let me stand in the rain after 2 years and numerous abuses on the track. Though now I need a more rigid and potential chassis to swap the RB25 in.
The parting out has already begun and the chassis has been sold. It will at least stay in the family and maybe seen again next year at trackdays, sporting a different engine 🙂
-Chris
Unfortunately, this is already the last part of the long build thread. More on the reasons why, below…
As more or less everything was prepared, I had to manufacture the exhaust quickly. I decided to weld my own downpipe, as it would then fit and perform ideally.
The result did please me and showed to be very effective. I added a flex bellow to keep things from cracking. The rest of the exhaust system I then made up with 3.5″ stainless steel tubing.
Which was a pleasure to weld and develop, since the S13 provides a lot of space. Except the region around the driver’s feet. With a moderately lowered chassis, things get quite narrow with an 90mm tubing under there.
After approximately 9 months of building, the car was now ready to be test driven and mapped. This was all done with the valuable help of my friend Martin S sitting to my right, with a laptop on his knees… 🙂
The car turned out amazing. It performed incredibly strong and proofed to be extremely durable at trackdays. We succeded to achieve a good 500hp and 550nm of torque with a healthy redline of 8400rpm. The powerband is somewhat wide, turbo spools at 3200 up to redline with no hesitation. One can imagine the pleasures the S13 provides to the driver 🙂
From now on I took the S13 to almost every trackday available through Speed-Industries. Also to quarter-mile or show events.
It was able to be beaten the whole day long at high rpms and take no harm. A really reliable setup.
What amazes me the most, is the amount of stress, rpm and horspower the stock bottom end of the RB25 is able to cope with. I mean that is double the horsepower and torque and ~2000rpm higher redline. This for the last 2 years, 18 trackdays and approximately 20’000kms.
The S13 might not have had the best weight distribution and refined steering or suspension, but it was fun to drift and mess around. Too much fun! So I never really bothered optimising anything…
It really was at home in Anneau du Rhin, where you can both drift and grip at Speed-Industries trackdays.
This is also where possibly one of the best shots of the car was made ^
The interior stayed quite comfortable, although the ride was very rough due to the 2-way LSD.
Also snow drifting was kind of fun, although I needed 10% of its power… hehe
The above pic shows the last trackday the S13 performed. After having thought about its future and the potentials and reliability of the engine, I decided to look for an alternative chassis.
The Silvia was an extremely interesting and instructive project and never let me stand in the rain after 2 years and numerous abuses on the track. Though now I need a more rigid and potential chassis to swap the RB25 in.
The parting out has already begun and the chassis has been sold. It will at least stay in the family and maybe seen again next year at trackdays, sporting a different engine 🙂
-Chris