![]() ![]() The first tests have already been done by WSBK & BSB. Electronically developed and tested at the track on the Graves team race bikes these stacks smooth power and increase horsepower across the entire power band of your R6 specifically effective in the mid-range. This kit works on all 2008-2022 + models (with stock, FTEcu tuning or Yamaha Kit ECU). Note that the Duratec is making peak power very low in the RPM range due to a very restrictive exhaust (soon to be replaced!), but the effect of the trumpets on engine performance is clear. MWR-VS-960 : Completely new velocity stacks for the new 2020 R1, lower stacks / upper stacks & bolts. Graves Motorsports Yamaha R6 WORKS Velocity Stacks. In both cases significant performance increases (typically 5-9bhp) are seen between 35 00-6000rpm when the carburettors are fitted with our trumpet kit. Additionally the torque curve is seen to be much smoother. Additionally when tuning for power increases a longer inlet tract (the distance from inlet to back of valve being the important length) has been found to be extremely beneficial, especially on a lower revving car engine.īelow are links to two different engines fitted with two popular bike carb kits (one 1800 zetec with R1 Mikuni carbs, one Ford 2.3 Duratec fitted with ZX9R carbs). The lower lines are both carb sets without trumpets and the higher lines are when fitted with our 50mm trumpets. Graves Motorsports WORKS Velocity Stacks Features: Electronically developed and tested at the track on the Graves team race bikes Smooth power and increase. By popular demand Dano's Performance is now offering our ECU Flash service together with our custom Velocity Stacks for the 2018-21 Kawasaki Ninja 400 and Z400 models for 295.00. Without this radius power and torque can both be negatively affected. Hi-Rpm Velocity Stacks for the Yamaha R6 carbs- We have made these trick velocity stacks for the original 99-02 R6 carbs. Kawasaki Ninja 400 and Z400 ECU flash with velocity stacks. You will note that any manufacturers standard equipment will feature such a radius for this reason. Why fit velocity stacks or 'trumpets'? A radius at the inlet of an inlet tract serves to smooth and even out the flow into each intake runner. Note that the silicone will stretch 3-4mm to fit larger diameters. ![]() These trumpets are suitable for a wide range of applications with cylindrical carburettor or throttle body inlet to allow the silicone to be clamped around. The good news is that our system utilizes one of the OEM velocity stacks. (carburettors are NOT included, shown for illustration only)ĭanST Engineering began manufacturing these trumpets due to a shortage of available and reasonably priced trumpets for fitment on our specialist carb and throttle body conversions. After countless hours of dyno testing, our Superbike Velocity Stack setup is ready. Please note that this requires the original Trumpets to be cut and sanded flush with the top face of the aluminium carburettor body. The kit includes:Ĥx40mm bore trumpets available in 25/50/90mm lengths ![]() DanST Engineering are pleased to offer this high quality lightweight aluminum spun trumpet kit for fitment to Yamaha R6 Carburettors. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |