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Author Throttle bodies Vs Mantzel style
Simon_16v
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Registered: 14th Aug 06
Location: Yorkshire
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6th Mar 08 at 20:43   View User's Profile U2U Member Reply With Quote
Hey,

Just gathering info on the difference between the 2. I know cosmetically they are different but if you used the 2 on a same high spec engine, what would show more power and why?

Si
Nick-S
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Registered: 3rd Mar 04
Location: Leigh. Drives: RS Megane 230 F1 Team R26
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6th Mar 08 at 20:49   View User's Profile U2U Member Reply With Quote
tbs because they are far less restrictive than a single throttle body and inlet
csweatherston
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Registered: 16th Jan 06
Location: Devon
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6th Mar 08 at 20:56   View User's Profile U2U Member Reply With Quote
as above, but more due to the fact the can draw a greater airflow.
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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6th Mar 08 at 21:01   View Garage View User's Profile U2U Member Reply With Quote
tb's will produce power increases all over the rev range, mantzel will just increase higher rpm power. So its not all down to bhp figures.

Drives supercharged Tec with torque
Dave A
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Registered: 10th Dec 03
Location: County Durham
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6th Mar 08 at 21:03   View User's Profile U2U Member Reply With Quote
I will find a graph showing a mantzel tuned engine Vs an engine with a similar spec on tb's......
eastend
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Registered: 13th Mar 07
Location: Taunton, Somerset
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6th Mar 08 at 21:21   View User's Profile U2U Member Reply With Quote
i wanna see this graph would be very interesting
dean101287
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Registered: 22nd Jul 07
Location: Cardiff
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6th Mar 08 at 21:23   View User's Profile U2U Member Reply With Quote
me to
eastend
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Registered: 13th Mar 07
Location: Taunton, Somerset
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6th Mar 08 at 21:31   View User's Profile U2U Member Reply With Quote
Dave?
Dave A
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Registered: 10th Dec 03
Location: County Durham
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6th Mar 08 at 21:33   View User's Profile U2U Member Reply With Quote
tomorrow maybe. cant find them.
eastend
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Registered: 13th Mar 07
Location: Taunton, Somerset
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6th Mar 08 at 21:34   View User's Profile U2U Member Reply With Quote
cool, ill have a look then
Simon_16v
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Registered: 14th Aug 06
Location: Yorkshire
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6th Mar 08 at 21:56   View User's Profile U2U Member Reply With Quote
I see what you mean as the mantzel type still has the airbox for restriction whereas the throttle body has just a trumpet
eastend
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Registered: 13th Mar 07
Location: Taunton, Somerset
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7th Mar 08 at 22:06   View User's Profile U2U Member Reply With Quote
any luck finding the graph dave?
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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8th Mar 08 at 01:16   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by SRi_Si
I see what you mean as the mantzel type still has the airbox for restriction whereas the throttle body has just a trumpet

Remove the airbox then.

As said, a mantzel'd engine, on proper management can make 150+bhp.
But thats peak figure.

The range of power is much different.
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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8th Mar 08 at 02:49   View Garage View User's Profile U2U Member Reply With Quote
You're joking mate? Remove the airbox? Tb's have four throttle bodies compared to the one standard. It's the inlet that is restrictive, so the airbox makes really no difference if it has a panel filter.

 
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