jdizzy204 Posted March 14, 2010 Share Posted March 14, 2010 It seems these are much more responsive than regular butterfly throttles but they dont seem to be getting much use at all. Are there any downfalls to this technology versus ITBs (for a sort of apples to apples comparison)? roller throttle versus ITBs Quote Link to comment Share on other sites More sharing options...
mikedc528 Posted March 14, 2010 Share Posted March 14, 2010 I would think the only difference is that there is no restriction at all during full throttle from the throttle plate, since the roller doesn't have a throttle plate. ie: the throttle plate is still in the path of the air, just has a significantly reduce profile when at full throttle. The roller throttle seems to have no restriction, but would that really make a noticeable power difference to warrant something which looks extremely complicated to manufacture? Quote Link to comment Share on other sites More sharing options...
Mayolives Posted March 15, 2010 Share Posted March 15, 2010 If nothing else, a roller throttle body would really add to the "WOW" factor. It sure is peeerrrty! Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted March 15, 2010 Share Posted March 15, 2010 Adds a lot of bling, that's for sure. Throttles aren't the typical restriction in an intake, as they are easy to enlarge. The restriction that remains is usually intake ports and valves. Quote Link to comment Share on other sites More sharing options...
MREDDLE Posted March 15, 2010 Share Posted March 15, 2010 I have looked in to this a couple of times and find that people that have them conplain about part throttle trobles. I have been told and can see that the roller throttle bodies are better as on/off switches, then as throttle bodies. Quote Link to comment Share on other sites More sharing options...
cockerstar Posted March 16, 2010 Share Posted March 16, 2010 I have looked in to this a couple of times and find that people that have them conplain about part throttle trobles. I have been told and can see that the roller throttle bodies are better as on/off switches, then as throttle bodies. Exactly what I've heard as well. Quote Link to comment Share on other sites More sharing options...
zero Posted March 16, 2010 Share Posted March 16, 2010 Yeah, I have heard that there are modulation issues as well, mainly to do with the shorter path the air has to travel on partial throttle as compare with a butterfly valve. I'd bet that this could be solved with a cam shaped throttle pulley though. I have heard similar complaints with slide throttles as well... Quote Link to comment Share on other sites More sharing options...
kiwi303 Posted March 16, 2010 Share Posted March 16, 2010 Looking at the roller design, I can see it causing much more turbulance as the air at part throttle slips through the opening into a larger interior, and then meets the other face of the tube with the small opening above a ledge. Quote Link to comment Share on other sites More sharing options...
260DET Posted March 19, 2010 Share Posted March 19, 2010 Yeh, plus they would be heavier, bulkier and more prone to jamming. For what benefit? Quote Link to comment Share on other sites More sharing options...
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