Hi,

I'm looking to increase the efficiency of my '05 R/T Hemi, and am thinking of installing an upgraded throttle body.
Like an 85mm or 90mm unit from BBK.

With only 'Stage 1' mods so far (intake / exhaust / Diablo tune) is the 85mm better than a 90mm?

Would I need to get a new Diablo tune written to take into account the larger throttle body, or will the engine management be able to cope and take advantage of it as it is?

What sort of benefits would I expect to see?
Noticeable power increase? Any influence on fuel consumption?

Do people think they are a worthwhile modification?

Any views would be welcomed.

Thank you.
Regards - D

 

Unless you've done cam and head work, the stock TB is plenty big.