987 air intake: latest developments

[NewArt]

NewArt wrote:
Thought that I might run this by you. I took the car out for a spin yesterday. It ran like crap for the first 10 minutes but then everything smoothed out. I guess that the DME was adapting during my drive. I didn't push the car at all, hardly getting above 4000 RPM. When I got back home I left the car idling and hooked up the Durametric to see what the fuel trims looked like. The results are a bit wonky but I haven't got my Anniversary Edition tune yet. In light of my recent air intake intervention, do you think that these results are to be expected or should I be looking for a leak?
FRA 1: 1.28
RKAT 1: 2.53
FRA 2: 1.29
RKAT 2: 2.67
MAF: 1.18V
9 kg/h
Let me know what you think.

The Radium King replied:
"They look pretty much as you should expect pre-tune. your rkats are idle trims and in %; around 2.5% each side which is high as expected but within the 4% spec. they are positive which means the ecu is adding fuel as expected.

your fra values are around 1.3; more than the 1.2 that i’d predicted but close enough for the cocktail napkin math that i’d done. again, they are positive which means adding fuel as expected and, very close to the 1.32 spec which triggers a cel.

so, i think you are good; science wins another one."

[NewArt]

Update: Got my 2004 Spyder tune from Prestige Porsche today. I'll put up data after a few drive cycles but for now, all I can say is that she's pulling like a champ! My "Air Intake Mod -epilogue" video will come out as soon as I get the final dyno done. Watch for it! :dance:

[Cunningr]

Was checking your feed last night for the final video! Lol.

[KRAM36]

Originally Posted by NewArt

Update: Got my 2004 Spyder tune from Prestige Porsche today. I'll put up data after a few drive cycles but for now, all I can say is that she's pulling like a champ! My "Air Intake Mod -epilogue" video will come out as soon as I get the final dyno done. Watch for it! :dance:

"Pulling like a champ" my exact words from my mods.

[NewArt]

It shouldn't be too long if it would only stop snowing!

[The Radium King]

glad it went smoothly. recommend getting 50 km or so on the car to get your trims sorted out before dyno. and check your fra's to make sure everything is as it should be before flogging it on dyno.

[Cunningr]

Originally Posted by The Radium King

glad it went smoothly. recommend getting 50 km or so on the car to get your trims sorted out before dyno. and check your fra's to make sure everything is as it should be before flogging it on dyno.

Judt out of general interest could you explain what those settings are like a general short tutorial. What they should be and what they are. I have had my car 2 years now but just really getting more into the technical stuff.

[The Radium King]

Originally Posted by Cunningr

Judt out of general interest could you explain what those settings are like a general short tutorial. What they should be and what they are. I have had my car 2 years now but just really getting more into the technical stuff.

DIY 987 Air Intake mod PART 3 !

[Cunningr]

Originally Posted by The Radium King

DIY 987 Air Intake mod PART 3 !

I watched this the other day didnt catch the explaination of the numbers will watch again.

[Cunningr]

Originally Posted by The Radium King

DIY 987 Air Intake mod PART 3 !

Watched it again,i understand the install. What i dont understand are the numbers you keep saying look great. IE fra be interested in knower what you are evaluating and what they mean.

[NewArt]

I will make a brief fairly simple explanation in my upcoming video. For a really comprehensive explanation of fuel trims (as well as other technical stuff) I highly recommend the YouTube channel Schrodingers Box:
https://www.youtube.com/watch?v=5WnM_NsOtd8&t=677s

[NewArt]

TRK, Yeah, I'll get some drive cycles in this week and check my trims. So far so good!

[NewArt]

I must say that although I am pleased with the outcome (yet to be confirmed), getting the tune from the Porsche dealer was executed at dealer rates. Since this is not a procedure that they often (ever) do, it took quite a bit of time for my tech to research the possibilities and get my okay and then push the tune. I spent 3 hours there but they only charged me for 2. And hey, I got free espresso and a complimentary car wash!

[The Radium King]

ow; that's a lot of pesos. here's my intake ...



oem coupler at the maf holder introduces the bend early on so no contact with the transmission, and provides some isolation to keep engine vibration from affecting maf readings, then just a short coupler and a long-leg silcone elbow.

[dlud]

Originally Posted by The Radium King

ow; that's a lot of pesos. here's my intake ...



oem coupler at the maf holder introduces the bend early on so no contact with the transmission, and provides some isolation to keep engine vibration from affecting maf readings, then just a short coupler and a long-leg silcone elbow.

Did you cut down the 90 degree at the throttle body? When I try to use a 3.25" 90 at my throttle body I run out of space and it hits the rear firewall.

[jaykay]

Originally Posted by NewArt

I must say that although I am pleased with the outcome (yet to be confirmed), getting the tune from the Porsche dealer was executed at dealer rates. Since this is not a procedure that they often (ever) do, it took quite a bit of time for my tech to research the possibilities and get my okay and then push the tune. I spent 3 hours there but they only charged me for 2. And hey, I got free espresso and a complimentary car wash!

Which tunes are currently available and which one did you end up getting? What were the names given in the PWIS?

I believe the possible candidates for a 2000 to 2002 Boxster S 3.2 DME are: 1999 to 2002 996 3.4 and 996 3.4 ROW.

2003 to 2004 Boxster S 3.2 DME: 2003 to 2004 996 3.4 and 996 ROW; 550 Anniversary SE Spyder.

The separation at 2002 is due to the introduction of vario cam plus IIRC

[alm001]

I like that coupler. I'll have to pick one up to round out my intake

[The Radium King]

Originally Posted by alm001

I like that coupler. I'll have to pick one up to round out my intake

yes, it looks close to factory like that. the only thing that might look even slicker would be to get the custom tube that ipd makes for their setups and use that.

[NewArt]

TRK, What size is your metal coupler? That accordion coupler steps down from 3 5/8” to 3” or 3 1/4” ?

[The Radium King]

i posted part #'s and sizes in one of your other threads iirc. i think 3.25" - it is the same OD as the TB, so everything joins together cleanly.