|
Reducing Intake Temperatures |
 |
 |
| In this section I will cover
three different cheap and easy ways to reduce the temperatures of the
intake. I have an intake temp gauge installed on the throttle body
transition casting, which can be see to the right, and I have seen
improvements as much as a 50% drop in intake temps from these
modifications. The first mod is removing the coolant hoses from the throttle body. Engine coolant is typically around 180 F, so having this heat circulating through the intake is clearly not beneficial to performance. To do this all that is needed is a short length of ½” pipe. Remove the two hoses from the throttle body and connect them together. Some coolant will spill out so use a vise on each clamp to minimize fluid loose. |
 |
| The second modification is simply rapping the intake pipes with insulation to reduce heat soak form the engine. The perfect thing to use for this is a adhesive foam/foil pipe rap found at Home Depot for only $3. It is very easy to cut and install on the pipes. It will stick to the surface but will not leave glue on the pipes when pulled off. It holds up well and despite the appearance of the foam it does not melt easily. But do not place it on any exhaust pipes. | 
|
 |
|
| The third modification, while simple, is a bit more work to make and install. A high temp high strength plastic is installed between the intake manifold and throttle body to reduce transmitted heat from the engine block to the intake. Ideally the spacer would go between the engine and intake manifold, but that would be much more difficult to cut and install. | 
|
| The fourth modification is very easy to perform. Removing the underhood insulation allows for better heat transfer out of the engine bay. The main purpose of the insulation is sound deadening, my turbo whine and BOV sound much louder with it removed. The insulation is held in place by ~10 plastic tabs. These can be pulled out in under a minute and it is just as easy to replace. | 
|
| Home |