Young Version — August 1999
An archive project by Flock MFGNew issue alerts →
About this issue
The August 1999 issue of Young Version explores drift setups versus grip tuning through 22 shop demo cars, including S15 Silvias from Mine’s and Kazama Auto. Features cover front-wheel-drive builds taking on high-powered 4WD rivals, choosing a first drift car, and reviving a used AE86 Trueno on a ¥1 million total budget. Suspension fundamentals, engine-oil selection, rotary maintenance, new-parts tests, and reports from Hiroshima and California round out this look at Japan’s late-1990s tuning scene.
242 available scans from Young Version — August 1999, in right-to-left reading order. Japanese OCR and English translation drafts are available throughout. Drafts have not received exhaustive image proofreading; unreadable source remains recorded in the archival data.
Page 70 — English draft translation
The S15 turbo has an air of mystery, so let’s install it. On an S14, the housing size and flange orientation are shared, so the turbo is a direct swap. The piping, exhaust manifold and extension can all be reused. On an S13, two modifications are needed. First, as the turbo comparison photo at the top of this page shows, the compressor inlet flange (the diamond-shaped part with two studs) is angled differently from the S14/S15 turbo. It connects to the corrugated rubber pipe from the airflow meter; forcing it into place would…
…but that would put unwanted strain on the pipe, so don’t do it. Instead, cut the L-shaped adapter, turn the flange to the correct angle and weld it back. There’s one more small issue: a bolt hole on the exhaust-side flange is slightly misaligned, so the extension pipe needs a slotted hole. Once those two changes are done, fitting the S15 turbo to an S13 is easy. The stock S15 turbo part number is 14411-?F00 and the price is ¥91,200.
Captions and page details
Swap it!
Apart from fitting an S15 turbo (with a few changes to the silver section) and switching to a Z32 airflow meter, YV’s 180SX looks almost stock.
You can’t tell just by looking…
and see!
For the S14, the bolts…
…line up…
The exhaust manifold and related parts can generally be reused.
A stainless equal-length exhaust manifold would allow higher boost, but YV deliberately kept the stock one. The S13 part fit as-is.
Cut the compressor-inlet adapter and weld it at the S15 turbo’s flange angle; this prevents the piping from being strained.
Overlaying the stock S13 and S15 exhaust-side gaskets shows that the hole being pointed to is slightly offset. Elongate one hole in the extension and it fits.
More power means fuel-system upgrades are essential!
S15 stock, 480 cc
s
…are 370 cc.
The S15 turbo can make well over 300…
Taniguchi’s car already had an S15 turbo setup capable of more than 300 [PS], so it was left as-is while YV’s car got the change. This should support roughly 370–380 [PS]!
Stock BNR34
Likewise…
GT-R stock…
This…
By the way…
For a basic boost-up setup, you can even reuse the stock S15 unit.
Stock Z32
…meter…
Z32…
For street driving alone, you can leave it unchanged. But the S14/S15 airflow meter is inadequate for a 300-PS-plus setup. Taniguchi’s car and the YV car both started with stock meters, so they were upgraded to the popular Z32 unit along with the turbos. It is easier to tune and has a larger diameter, reducing intake restriction.
Injector
Part no. 16600-91F00 / Price: ¥10,300 each
13
S14 stock injectors
…for…
Fuel pump
Part no. 17042-AA305
…one…
…is…
…this…
…and also…
Part no. 22680-30P00
Airflow meter
/
…
car…
…only the stock S15 480-cc…
Price: ¥22,700
stock…
…
R
R
32
…
…
…
…
…
Price: ¥31,500
high…
For sustained high-load driving above 300 PS, the S13…
two…
…at 280 PS…
…stock…
…was reused. It is higher-performing than the S13 unit…
…turbo boost…
…
…the trick is…
72