what is the difference in the internal diameter of the throttle inlet between a 3.5 and a 3.9 ltr engine ... if there is a difference and you ues a 3.5 on a 3.9 will it reduce the total power and effiecncy of the engine and if known by how much
cheers
RANGEE
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throttle inlet diameter
Moderator: Micka
throttle inlet diameter
Virgins !!!
someone has to go first !
someone has to go first !
Hi Rangee !
Throttle diameter are the same on 3.5 and 3.9 plenums.
It is 65mm !!!
Doesn´t do any differences if you put on a 3.5, 3.9, or 4.6 plenum !
The standart plenum supplies already quite enough breathing up to 300 horse power engines!
( I am building a medium tuned 3.9 l engine at the moment which I am going to set up with a twin plenum ( 2 x65mm )
Because the two times 65mm are way to much for that engine I´m going to create two aluminium reduction cones with custom made throttle discs.
2 x 40-45mm !!!
Results from this experiment I will be able to tell you by february. )
Throttle diameter are the same on 3.5 and 3.9 plenums.
It is 65mm !!!
Doesn´t do any differences if you put on a 3.5, 3.9, or 4.6 plenum !
The standart plenum supplies already quite enough breathing up to 300 horse power engines!
( I am building a medium tuned 3.9 l engine at the moment which I am going to set up with a twin plenum ( 2 x65mm )
Because the two times 65mm are way to much for that engine I´m going to create two aluminium reduction cones with custom made throttle discs.
2 x 40-45mm !!!
Results from this experiment I will be able to tell you by february. )
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