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YOUR RESEARCHThrottle body
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Replace exhaust as well
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I cant see how it would help without changing the exhaust as well...
Leading evidence: 'Replace exhaust as well' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace exhaust as well' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Hello I just bought a throttle body mod 4s of 997 for my 2009 996 Carrera 2 2003. The original throttle body diameter '75mm like this and '85 mm. Now I need the plenum for this change.
ok but there is still something confusing about this "mod 4s of 997 for my 2009 996 Carrera 2 2003"
Is there a message in there somewhere about being able to fit a larger throttle body on our engines?
Pete
I cant see how it would help without changing the exhaust as well... there is a fomula somewhere that says the amount of air in has to equal the amount of air out...............
It would be interesting to see dyno runs before and after. I would have guessed the throttle body should be balanced with the engine displacement, compression, cams & exhaust. Just changing one should have a modest effect at best. I'm open to being wrong.
I explain I would mount on my 996 Carrera 2, the throttle body of the new 997 4s. This' same as the GT3. this is because I see several posts on Cayman, the 996 Turbo, assemble the throttle body bigger and earn tantta torque and 10 hp. Someone can help me determine the dimensions of the plenum 996 to 997 GT3?
honestly... do you think you are going to notice 10 HP and "some" more torque...
unless you are pushing your car to the ragged edge in a competative timed enviornment, this is just a sound modification IMO and for $1 you can put a cap on the secondary air intake and have the same results...
sorry, i just dont get this thread - though I understand some people just want to try the strange things and get them to work...
before doing it get a good Dyno run and then compare the "after"... I would not be surprised to see something you had not thought of from doing this.... juat my 0.02
and GL
