The Engine Specialist
‘VALC’ profile camshafts
for even more performance!
>Improved & updated design
>Our largest ever LSD!
>Designed specifically for the GETRAG JZA80 SUPRA
>Made to withstand tuned, high power/torque 2JZs
>Ideal for street, drift and race.
| MODEL | CHASSIS | ENGINE | TYPE | PART No. | MSRP | |
| TOYOTA SUPRA |
JZA80 | 2JZ-GTE | 2WAY | TYPE-TC20 | TC101A-TYTC20 | $1,490.00 (USD) |
| 1.5WAY | TYPE-TC15 | TC101B-TYTC15 | ||||
| MODEL | CHASSIS | ENGINE | MODEL YEAR |
GRADE | T/M |
| TOYOTA SUPRA |
JZA80 | 2JZ-GTE | ’93 – ’98 | RZ | 6MT |
| STOCK LSD |
RING GEAR SIZE |
DISCS | DISC SIZE |
SIDE GEAR SHAFTS |
|
| TORSEN | 220mm | 18 | L | STOCK |
| TYPE | PART No. | |
| 2WAY | TYPE-TC20 | TC101A-TYTC20 |
| 1.5WAY | TYPE-TC15 | TC101B-TYTC15 |
MSRP$1,490.00（USD）
The following products have been developed by TOMEI USA
to provide a simple yet powerful solution for turbocharging the naturally aspirated KA24DE engine.
Looking at one in Mazda’s showroom, the MX-5/MIATA comes across as small and cute, but I.L. Motorsport’s demo NC couldn’t be further from that! (Just look at their little roadster tearing up the Nurburgring!)
You see, there’s a reason why the MX-5/MIATA is the best selling roadster of all time. Mazda’s ethos for the little drop-top – focusing on total balance rather than absolute power – is what makes this roadster so special and such a joy to drive. It’s, lightweight, nimble, agile; call it the ‘refined athlete’ if you will. And much like an athlete on the track, the MX-5/MIATA can certainly hold it’s own against bigger, more powerful rivals.
Leaving the ‘power v handling’ debate aside, I think we can all agree that the stock exhaust (see above) is the clear ‘Achilles heel’ of the speedy roadster.
The stock system has 2 major ‘bottle necks’, one on the header and one just after. Removing these alone makes a huge difference as it dramatically reduces turbulence and back pressure caused by the OEM system (see above).
Combined with the straight pipe and muffler, you’re looking at vastly improved exhaust flow as well as a weight saving of more than 35lbs!
For full details, click here!
INSTALL WITH PONCAM/PROCAM CAMSHAFTS FOR BEST RESULTS!
Combining multiple spring rates into one valve spring dramatically increases it’s natural frequency. This improves the spring’s harmonic resistance which also helps reduce the chance of spring surge.
Standard oil tempered chrome silicon wire is widely considered to be the best material for manufacturing springs. However, these valve springs are made using an enhanced version of the material. Paired with our highly optimized valve spring design, these springs offer increased maximum rpm as well as improved resistance to fatigue and valve ‘jump’/’bounce’.
‘The ‘Shot Peening’ process involves the spring’s surface being ‘shot’ with countless steel pellets/particles. This forms a layer of residual stress on the surface which improves the spring’s resistance to fatigue.
‘Hot Setting’ is when the spring shape/form is set in high temperatures using a far greater load than intended. In doing so, the spring is able to maintain and consistantly deliver a high level of performance over a long period of time.
Nitriding is used to further harden the surface of these valve springs. The process invloves the springs being treated with nitrogen which, once absorbed, causes the spring’s surface to compress and harden. This process was sepcifically employed to reduce spring fatigue when using high lift camshafts. The graph (left) shows the failure threshold of common valve springs compared to our own Nitiride treated version made using enhanced Oil Tempered Chrome Silicon Wire. Our test results showed a 50% increase in fatigue resistance making them compatible with high rpm applications.
Oval wire valve springs feature greater compression than regular valve springs, allowing them to work with a wider range of ‘lift’ settings. This makes them compatible with both stock AND aftermarket high lift camshafts. (VR38/VQ35/KA24/4G63/4B11/G4KF)
Using highly durable oval wire allows the valve springs to compress even further whilst still retaining sufficient force. Compatible with many high lift camshafts, these springs provide reliable performance even under load at higher RPMs.
■PRECISION WATER/OIL ROUTE SEALS
■ULTRA DURABLE, HIGH PERFORMANCE HEAD GASKETS
■HIGHLY OPTIMIZED, ENGINE SPECIFIC CONSTRUCTION
■MULTIPLE THICKNESSES FOR CR ADJUSTMENT
■MADE USING PREMIUM GRADE MATERIALS AND COATINGS
PROJECT KA24DE/240SX PHASE2 CAMSHFTS/VALVESPRING
PONCAM
・Noticable, linear gains in performance・Stable idling・Works best with ‘bolt-on’ type turbos
・Compatible with stock valve springs・Works with both NA and TURBO
VALV SPRINGS
Made from Oval Wire ,
Specifically Designed For High Lift Camshafts!!
This product is intended for turbocharged engines.
When installing on a naturally aspirated engine, the optimal valve timing will need to be set using adjustable cam gears.
For further guidance on valve timing optimization, please refer to the installation manual and/or the ‘Valve Timing Calculator’ available on the TOMEI USA homepage.
Please note that all adjustments and/or tuning should be conducted based on the specifications of your particular vehicle/engine setup.
