Throttle body question

[Jimbo-Clio]

Had a quick search couldent find much info not even sure its possiable but thought i would ask if anyone knows.

is it possiable to fit a larger standard style throttle body in place of the standard throttle body on a ph1 172 lump?
Has anyone done similar?


James

 

[T.Trophy]

Jenvey 70mm single throttle body should fit perfect.

 

[Fred@BTM]

but is a waste of time

 

[sideways danny]

jenvey body requires the plenum inlet enlarging and new threads drilling and cutting, also makes a masive difference to use the 100mm bellmouth

 

[Jimbo-Clio]

would you see much gain from it? do you think steve or £200 best spent else were?

 

[Jimbo-Clio]

so it is possiable but its going to be a massive waste of time and effort?

 

[Fred@BTM]

yup and yup

 

[Jimbo-Clio]

nice one fred thanks for clearing that up for me

 

[Russ_16v]

When I tested the air pressure in the mani, at full throttle the inlet want full, so in theory a larger t/b would allow more air in. But the problem is due to the larger opening, the car will be getting x amount more air, and tend to be very snappy as your getting more air in.

And as Danny said, they need a bit of work to fit.

So refere to Freds post lol

 

[Jimbo-Clio]

cheers russ

half mechanical knowledge seems to be quite a dangerous thing lol

 

[T.Trophy]

would you see much gain from it? do you think steve or £200 best spent else were?

Not sure TBH mate, Andy Cutler (GDI) did offer a package but that did include cams and it was supposed to be good.

As Danny says you'll have to port the inside of your inlets to ensure a good match but I'm sure the PH1 throttle body is the same square bolt pattern as the Jenvey, the fly by wire throttle body has a rectangular bolt pattern.

 

[sideways danny]

Not sure TBH mate, Andy Cutler (GDI) did offer a package but that did include cams and it was supposed to be good.

As Danny says you'll have to port the inside of your inlets to ensure a good match but I'm sure the PH1 throttle body is the same square bolt pattern as the Jenvey, the fly by wire throttle body has a rectangular bolt pattern.

it worked well with cams indeed. none of the bolt patterns are the same sadly