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Non-member
throttle body size
Hi guys maybe some one will help me my car is running 210 whp now im looking to go efi and i m get erring all it is need it my problem is i don't now what throttle body size should i use i don t want to go to small or to big
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Non-member
Re: throttle body size
As a starting point, 100hp per square inch. But also look at what boost pipes you'd use, and what fits.
you have about 240 crank, so ~45-50mm is a good starting point, certainly not less than 45mm, but don't worry about the size too much, more the fitment.
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Committee Member
North West Regional Area Rep
Re: throttle body size
would an mgzr throttle bodie be any good they come in either 48 or 52mm (52mm are only fount on the vvc engined cars)
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Non-member
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East Midlands Regional Rep
Re: throttle body size
Mk 4 Ford fiesta zetec, it's a 45mm throttle body, should do the job nicely
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