Reply to thread

Message: <blockquote data-quote="Ferendon" data-source="post: 3713747" data-attributes="member: 578259"><p>Throttle body spacers could help in a slight few cases, but not on a Grand Am. An intake manifold spacer would help more so than TB spacers. They work by shifting the torque curve up, thus lowering the RPMs while cruising, in most cases. This is at the expense of low end torque, which will cause a slight decrease in city MPGs. If you're a highway driver, and have the kind of time it would take to install them, go for it. Chances are, they would takes years to pay for themselves, though. Tornados are a waste on any car that has any kind of twist or bend in the IM, because a twist or bend interrupts the 'spiral' of the air flow. On most cars you would need an IM spacer. Pretty much, if you want to modify the airflow, with a positive effect, on a fuel injected car, other than just adding more air, you would have to do so between the IM and cylinder head.</p></blockquote><p></p>

Top