Installed EVO Intake, Holy Crap! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Dragonwind · 09-04-2008, 06:34 PM

Quote:

Originally Posted by Franco

Hi, that is exactly what i was thinking how do you get cold air from an oven

Can we install a 12 volt cooler in the trunk and plug the evo intake tube to that

would make a lot more donkey power

The EVO intake does draw from the outside. It comes with a surround so that it won't suck hot air from inside the engine. I did mine and love the results. Besides, I needed to replace the pipe that the MAF was installed on anyways so it was worth while. Great sound too (especially combined with the PSE).

I just tore out my old air box. I figured that if I ever want to go stock again I'll just order one up from a dismantler.
Chris

matty-matt · 09-08-2008, 06:15 AM

i'm very happy with the EVO airbox. stock airbox came out fine in one piece with a bit of patience. didn't lower the engine mount either.

only two sore-spots are the broken plastic tab on the intake vent cover when it was pulled off and the CEL that came on right after the instal (pulled the MAF sensor and cleaned it and CEL went and stayed off). the tab is still broken but the vent stays put ok.

engine pulls smoother through the rev range with a small but noticeable drop in low rpm power and a significant and VERY noticeable increase in high rpm power. and the sound is pure magic.

Lil bastard · 09-08-2008, 06:28 AM

Quote:

Originally Posted by matty-matt

i'm very happy with the EVO airbox. stock airbox came out fine in one piece with a bit of patience. didn't lower the engine mount either.

only two sore-spots are the broken plastic tab on the intake vent cover when it was pulled off and the CEL that came on right after the instal (pulled the MAF sensor and CEL stayed off). the tab is still broken but the vent stays put ok.

engine pulls smoother through the rev range with a small but noticeable drop in low rpm power and a significant and VERY noticeable increase in high rpm power. and the sound is pure magic.

You're running without a MAF?

matty-matt · 09-08-2008, 07:04 AM

just edited post. sorry for any confusion. MAF is installed, just cleaned it with electric contact spray.

kt1 · 09-11-2008, 03:07 AM

Honestly guys, I wouldn't knock Brad Roberts, many 'tuners' say they gain this and that from "feel" but you cannot feel such powers, it's incremental to what you're already used to and negligible by a 'butt dyno.' Only real way is having a dyno run before and after that intake install with same weather condition. If the intake didn't sit in the engine bay like that and actually had an element filter right at our side vent and smooth mandrel bent tubing going to the TB than maybe it'll help.

Side note: So does that X51 not bolt on to the 986's stock manifold's bolt pattern on the heads? That intake manifold looks to be a beast if you had port work done on the head for easier breathing of the engine.

Dragonwind · 09-11-2008, 04:24 AM

Quote:

Originally Posted by kt1

Honestly guys, I wouldn't knock Brad Roberts, many 'tuners' say they gain this and that from "feel" but you cannot feel such powers, it's incremental to what you're already used to and negligible by a 'butt dyno.' Only real way is having a dyno run before and after that intake install with same weather condition. If the intake didn't sit in the engine bay like that and actually had an element filter right at our side vent and smooth mandrel bent tubing going to the TB than maybe it'll help.

Where are you getting the idea that the EVO doesn't go to the side intake? The pipe that runs from the EVO to the TB is stock. The EVO comes with a cone filter, small metal pipe to attach the MAF, and a surround that prevents hot air from the engine being taken in. All air comes from the outside.

easyc · 09-11-2008, 04:38 PM

Quote:

Originally Posted by kt1

Side note: So does that X51 not bolt on to the 986's stock manifold's bolt pattern on the heads? That intake manifold looks to be a beast if you had port work done on the head for easier breathing of the engine.

well I can say this with one hundred percent certainty... a 3.2 intake manifold will NOT fit on a 3.6... the bolt pattern is different... one side (dont remember which) could be drilled and tapped, but the other couldn't

ANYbody have a part number on that 3.6 x51 intake manifold and TB????

edevlin · 09-12-2008, 03:04 AM

"Real live engineering data says the actual inlets on the side of the Boxster are TOO LOW. If Porsche had moved them up on the sides of the car, they would actually flow more than the 50% they flow now."

Not only that, but you would not be sucking up brake dust from the front brake. All it takes is a couple of hundred miles of driving and a clean filter element is pretty well covered with the black dust.....

Ed