Write-Up: Installing FWI Filter, Heat Shield, Air Scoop

AA wrote:

and for some reason, the A/C does not work when the sensor is disconnected.

The automatic climate control needs the outside temperature in conjunction with the inside temp. to keep the interior at the desired settings. Otherwise, it doesn't know how to set the blend doors.

MIght be able to use plastic fittings for residential hot water to house the IAT and give it a thermal break from the metal pipe.

Albertj

That's a good idea if you notice IAT temps change very slowly. I've seen some guys at the GTO boards, they just lay the IAT sensor next to the air filter in the CAI. But my IAT changes very quickly, and the intake tube feels pretty cool near the filter, even when driving for an hour or two.

I'm not sure if mine is broken or what. I don't have any check engine codes, and I don't have mine plugged in because I didn't want to make a hole in my intake tubing and not be guaranteed that it would totally reseal if I did, so I let mine dangle down.. I might have to buy the pigtail and maybe let it hang down into my fenderwell or something..

AA wrote:

That's a good idea if you notice IAT temps change very slowly. I've seen some guys at the GTO boards, they just lay the IAT sensor next to the air filter in the CAI. But my IAT changes very quickly, and the intake tube feels pretty cool near the filter, even when driving for an hour or two.

That is what I had for a while when I first built my CAI. Then I realized it would be a better idea to install it in the tube like the stock system was. An easy way to mount the AIT sensor is to get a plastic coupling and drill a hole in it. Then just stick the sensor into it and the plastic should form around the sensor. You can put some foil tape around it to make sure it doesn't fall off.

Quote :

I don't have mine plugged in because I didn't want to make a hole in my intake tubing and not be guaranteed that it would totally reseal if I did, so I let mine dangle down..

It probably won't throw a code, but the IAT circuit is open, reporting 0 ohms, so the PCM thinks it is very cold, probably -40ºF or whatever the minimum temp is. The PCM is either going to know this is an error, or it will likely run ultra rich until the O2 sensor corrects things. Too rich can make the car a lot slower than normal.

I didn't notice a difference but it was nearly 20 below when I was driving at night. =D

So would the pigtail into the fenderwell be a viable option? Or do I need to tap a hole in my intake? I would have tapped it but the material isn't flat, so it would be really hard to fit the sensor in there and be able to reseal it.

I think inside the filter or tube would be ideal. In the fenderwell would be okay. Try to keep the sensor as close to the filter as possible for accurate reading.

Friday or monday i will be removing the throttle body and THOUROUGHLY cleaning it and then if i feel like it i will be doing a LITTLE porting job and then shine it to a mirror finish........ and then ditch the 3 inch pvc and upgrade to 4 inch pvc

BY the way what do i need to take off the MAF out of the throttle body..... i is a torx outside thing but thers a wierd ball in the middle of it..

Also how hard is it to reconnect the throttle cables and disconnect>>

The fasteners for the MAF are "Temper Proof Star" type. You can find a set of bits at most auto parts stores for $5.

Good luck with the TB cleaning. I've always cleaned mine with the accelerator while driving.

AA wrote:

Good luck with the TB cleaning. I've always cleaned mine with the accelerator while driving.

yah you know that screen on the throttle body?.... Besides letting "junk" in or whatever......... is it safe to remove that??? i might do that too

98riviera98 wrote:

AA wrote:

Good luck with the TB cleaning. I've always cleaned mine with the accelerator while driving.

yah you know that screen on the throttle body?.... Besides letting "junk" in or whatever......... is it safe to remove that??? i might do that too

Unless it is really messed up, it is better to just leave it in so that the MAF can get correct readings.

The screen evens the air flow for more accurate MAF read. Leave it in there.

Aargh, I can no longer find this intake kit -



But I did find instructions for making your own -

Link

"jegs" has em

Thanks - be nice if they were about $60 less. Bit pricey for experimenting.

ill say!

man you guys got me thinking and im lovin the ideas im definitly tryin alot of them out especially the ram air idea will let you know how it goes

I have a FWI i built using parts from Spectre Performance, and i was thinking of going this route to lower intake temps, but it seems a little to pricey for what it is and it isnt at all attractive. but who cares if your car runs better and or faster with it!

http://www.jegs.com/i/Thermo%20Tec/893/14500/10002/-1

heres the view from the TB



and the view into the FW

Quote :

man you guys got me thinking and im lovin the ideas im definitly tryin alot of them out especially the ram air idea will let you know how it goes

Keep in mind, it's not really 'ram air'. Think of it as better cold air intake.

lyonsperformance wrote:

I have a FWI i built using parts from Spectre Performance, and i was thinking of going this route to lower intake temps, but it seems a little to pricey for what it is and it isnt at all attractive. but who cares if your car runs better and or faster with it!

http://www.jegs.com/i/Thermo%20Tec/893/14500/10002/-1

heres the view from the TB



and the view into the FW

good link. I need something adjustable like this cause an intercooler will add a few inches of increased length on my air intake. Dont wanna make two of them.

i really believe this set up is the way to go because its completely modular, im sure there is a more flow efficient way, to route it because the 90* that turns the straight into the FW, is a little bit restrictive, but all in all ive seen excellent results. Plus the chrome looks awesome undernea the hood, it really stands out.

Ive been looking around for anyway to run a ram air style set-up for this intake, but i keep drawing blanks and impractical ideas!

this is the burden we face, while trying to balance performance and appearence!

Has anyone used the APC Stainless Steel mesh cone air filter?
It looks like a very low maintenance, low restriction filter for use in FWI applications