Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   General Miata Chat (https://www.miataturbo.net/general-miata-chat-9/)
-   -   Question about intake temperatures and power? (https://www.miataturbo.net/general-miata-chat-9/question-about-intake-temperatures-power-27738/)

Ajb 11-03-2008 05:14 PM

Question about intake temperatures and power?
 
I know this is a bit of an open ended question but for what kind of temperature drop do you need in your intake temperatures to get some form of noticeable improvement in power or throttle response?

paul 11-03-2008 05:18 PM

I'd say you can feel a difference of 10 degrees ambient.

cardriverx 11-03-2008 08:39 PM


Originally Posted by paul (Post 326834)
I'd say you can feel a difference of 10 degrees ambient.

I would agree. going from a cool 70 degree day to a warm 80 degree day, I boost a good one psi less. Not to mention stuff heats up quicker.

Ajb 11-04-2008 08:14 AM

Are intake temperatures about ambient with the set ups?

icantthink4155 11-04-2008 08:30 AM

Havent you ever taken a drive on a cool autumn day?

cardriverx 11-04-2008 12:53 PM


Originally Posted by Ajb (Post 327062)
Are intake temperatures about ambient with the set ups?

after a deicent amount of boosting I hit about 100 to 110 degrees with my intercooler.

johndoe 11-04-2008 12:54 PM


Originally Posted by Ajb (Post 327062)
Are intake temperatures about ambient with the set ups?

most often they are above ambient.

Braineack 11-04-2008 01:38 PM

do the math. figure out the difference in temps and how much extra density you walk away with, then you'll know how much more oxygen you are burning.

Splitime 11-04-2008 01:52 PM

AITs are one reason I like oversized IC setups. I run almost ambient with my giant IC and Vmount setup. Nothing like boosting for 20 minutes straight on track and being within 8degrees of ambient.

Don't worry so much about the specific math of ait vs power... just realize that the cooler the charge... the denser the charge... the more powerful the charge (assuming the tune is proper)

Ajb 11-04-2008 02:24 PM

Yep definatly sounds worthwhile , i just trying to work out how much gain could be made and also thinking of some cooling solutions.

After a play with a calculator i worked out that for 14psi of boost about every 10deg drop nets about 2% denser air not sure if thats correct though.

paul 11-04-2008 09:55 PM

not only do you gain power but you reduce the likelihood of detonation as temps go down.


All times are GMT -4. The time now is 03:02 PM.


© 2024 MH Sub I, LLC dba Internet Brands