Roller barrels
Discussion
The earlier VHPD engine as user in the Superlight R used Rover KV6 throttle bodies with butterfly throttles.
The R300, R400 & R500 use Caterham roller barrel throttle bodies which are a custom casting (with Caterham cast into it), presumably made for Caterham by someone.
Apparently the differance is small in terms of flow rates but the roller barells are quicker reacting.
The R300, R400 & R500 use Caterham roller barrel throttle bodies which are a custom casting (with Caterham cast into it), presumably made for Caterham by someone.
Apparently the differance is small in terms of flow rates but the roller barells are quicker reacting.
some like this? 3rd pic
www.r300.net/index.php?module=photoshare&func=showimages&fid=64
>> Edited by R300 CYA on Thursday 6th October 17:33
www.r300.net/index.php?module=photoshare&func=showimages&fid=64
>> Edited by R300 CYA on Thursday 6th October 17:33
Roller barrels have nothing to get in the way of airflow when fully open. The butterfly on a trad throttle body will always be in the air flow to a greater or lesser extent (the spindle for it and a but of the butterfly).
Having driven with both, the difference was imperceptible to me, and I wouldn't pay extra for roller barrels.
The original SLR throttle bodies were a lash up from the KV6 as mentioned, and the manifold for them restricted their performance.
Having driven with both, the difference was imperceptible to me, and I wouldn't pay extra for roller barrels.
The original SLR throttle bodies were a lash up from the KV6 as mentioned, and the manifold for them restricted their performance.
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