Evening all,

Read some info on a throttle body spacer but still a bit confused on the benefits, for £80 you can get one for the mk7 but all i can see it does it smooth the air flow round more will that actually have any effect on the performance ? Or just nothing ??

Cheers all

Probably a complete waste of time on a modern, stock, or near stock motor

On an older, carburetered car the spacer increases the distance between the carb and the inlet manifold, this can help the fuel atomise and mix better with the air, helping combustion

on a modern engine the fuel is injected directly into the combustion chamber - so the spacer will have no effect in this case

The spacer has to be a perfect match with the throttle body/ manifold, if it is well designed, it can increase airflow, if it is not, it can cause turbulence that can restrict the airflow and reduce power/ stop the engie revving at the top end

Its a bit technical/ complicated for this (non-technical) forum, but the inlet has a "tuned length" or "resonant frequency" this may be tuned by the manufacturer to boost low- end torque or "fill in" a flatspot (ie, in the midrange) adding the spacer increases the length of the inlet, this changes the resonant frequency, this can put the resonant frequency outside the engines operating range (loosing power/ torque) or reduce power at some revs, and increase it at others (depends on the specific engine, and many factors)

Off the top of my head, the 1.25 has the same inlet as the 1.4 and 1.6, so is more than good enough for the 1,25 anyway

I would nood to see before/ after dyno graphs (preferably independant/ not run by the tuner/ supplyer of the plate) it would have to be the exact same engine as yours with the same mods (if any) to be accurate

On balance, for you a waste of time/ money, you are paying £80 for a fivers worth of plate - you could make it yourself

Cheers foca i do know what you mean, and how it can benefit but ford set them up for a reason angled and length so i dont think im going to change it or like you say waste 80 quid on trying it and then pay for two dynos cost of another 50 each to see no gains so thats one less on the list :) thanks for the help and clearing it up