JM51526

The secondary air intake on the IS F that opens around 3500 rpm - is there a way to set it to be always open? If so, how?

shahir18

iTrader: (2)

https://www.clublexus.com/forums/is-...ntake-mod.html

Compthis

iTrader: (1)

I think you will lose power if you do this......

Vervish

iTrader: (4)

No need to remove the vaccuum line, just unplug the electrical connector. Sounds good - felt slower to me.

JM51526

Thanks. Interesting - it might negatively affect low end torque. If I ever get a chance for a dyno run I'll try it...

lobuxracer

iTrader: (2)

Dyno won't tell jack about this. All the data I need came from 1/4 and 1/8th mile runs. It's consistently slower with the flap hard set open. As you might guess, I'm not a big fan of dyno numbers. They don't always translate into a faster car. Besides, I've never seen anyone drive down the street with the hood open, so dyno conditions don't even vaguely resemble actual driving conditions. I've always been convinced trap speed never lies.

Jkru2000

This has already been tested. Proof of loss in power on the dyno. Increases sound decreases horsepower slightly.

9aristo

iTrader: (10)

prop it open with a twig.

chris6878

buy some headers

JM51526

Yes!

That would move me out of F Stock in Solo2. And cost a lot. I'd rather improve the slowest part of the equation, which, currently, is the driver!

pc1990

So vacuum cap(what size?) the connection end, and what do you do with the hose?

or

Which electrical connector should be disconnected?

thanks,

Joe Z

iTrader: (10)

For a slower car, you will disconnect the connector right at the intake box flap..
It controls the vacuum solenoid..

Joe Z

lobuxracer

iTrader: (2)

Disconnecting any solenoid is going to **** off the ECM. Have fun with that.

Vervish

iTrader: (4)

I had no CEL - but I only kept it disconnected for about a day.

ricky350is

I tried this and I did notice it was louder but it wasnt pulling as hard.

I wonder why it was removed from the ISF CCSR though?