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View Full Version : Oversize throttle body. What's that all about then?

imoyes
08-09-04, 03:45 PM
I've heard of people adding these http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33558&item=7920360663 to their cars and I know that, obviously, it would let more air in but.

What would the actual effect be of replacing your throttle body with one of these gigantor ones?

Would it up your HP, torque, 0-60, top speed? What? By how much? Or is it one of those "remove the restriction and make the extra boost you dial in worth while" things?
Lofty
08-09-04, 04:01 PM
I would have thought that it would improve throttle response on and off boost slightly. I would imagine that it could possibly hurt torque/HP off boost due to reduced velocities, but on boost it will be able to pass more air (assuming your turbo, IC and pipework are not restrictive) and therefore you should make more HP and torque. The OEM TB is 60mm I think. Turbo A is something like 65mm, but don't quote me. I think it is, as you say, one of those "remove the restriction and make the extra boost you dial in worth while" things.
Nick@TC
08-09-04, 04:05 PM
No gains unless highly tuned mate. Without a doubt, you'd need a upgraded intake at the minimum, like we make for the MKIV.

We're thinking about doing the MKIV/MKIII hybrid conversion for the MKIII, but potential interest would only be minimal, so not sure if it's worth it.
imoyes
08-09-04, 04:16 PM
Without a doubt, you'd need a upgraded intake at the minimum, like we make for the MKIV.

Oh I'm not thinking about buying one I was just trying to reduce my stupidity quotient. :)
Dino
08-09-04, 04:19 PM
spray the car black it ups ur iq 10 points honest guv
buttmunch
08-09-04, 04:40 PM
It doesn't matter how big a throttle body you put on if your IC (stock) only has a diamiter of 2 1/4" as with most things in life your flow is only as good as the smallest diamiter on your inlet. I would think having a huge thorttle body would lose you alot of low down torqe and make drivability off boost a nightmare.
imoyes
08-09-04, 05:01 PM
spray the car black it ups ur iq 10 points honest guv

OMG! Is that right! :) In that case I'll just get some black Hammerite and brush paint it! :) Meanwhile these nice gentlemen in WHITE coats want to talk to you. :) :duck:
Bondango
08-09-04, 05:06 PM
Thats gordon selling that, he runs one of the big BHP 7MGTE's only its in a cressida lol he is a great contact to have as he has a brother in Japan who gets him the stuff. I got my LEX and 550's from him

He also builds the Sard AFPR kits for the mkiii $200 shipped
Dino
08-09-04, 05:11 PM
OMG! Is that right! :) In that case I'll just get some black Hammerite and brush paint it! :) Meanwhile these nice gentlemen in WHITE coats want to talk to you.


oh it's bill and ted two good friends of mine i see them every now and then when i get out of home. :cheeky: :cheeky:
imoyes
09-09-04, 09:17 AM
oh it's bill and ted two good friends of mine i see them every now and then when i get out of home. :cheeky: :cheeky:

"I used to take pride in being the craziest guy in the room, now I'm not even in the running. Feels kinda weird." Robert Downey Junior, Air America. :)