Cold air intake

[Johnny Danger]

FYI, the last time I spoke with EVO, they indicated that the air filter for their intake was proprietary. I tend to believe them, because I couldn't find a replacement from K&N (or any other brand for that matter) that matched it in terms of dimensions .

[sgt brad]

Originally Posted by Jake Raby

Thats a full evo kit as they were provided in 2007 or so. Then the kit had an optional air filter, but now it comes with a K&N knock off. I'd use a real K&N cone filter and find the largest one that you can fit.

I figured out after I posted that the plugs were for the resonator tube. Was curious about the air filter. Didn't realize that I would have to purchase one. All of the pics I had seen showed a filter and there were no instructions, etc. I have to bee honest, at even 150.00 this kit seems a colossal waste of money. I can't imagine paying 3-400.00 for it retail.

[Jake Raby]

I have to bee honest, at even 150.00 this kit seems a colossal waste of money. I can't imagine paying 3-400.00 for it retail.

I agree.. I sold it to you at less than 1/2 of what I paid for it. I'd never ever consider using anything like it in the future.

[ccstud17]

I highly recommend de snorking and at least doing the pedro intake upgrade. the sound is AWESOME!!! It HAS tripped the CEL 2 times now in about 1000 miles, both times it was the MAF. Could be a 14 year old cranky MAF or the intake, Regardless id suggest doing it, and dont do a full on CAI from all of my research I saw a dyno report that showed only 6 hp gain and 2.5 of that was on the desnork!

[Jake Raby]

Every car we have desnorkeled has lost throttle response and mid range torque. Many times we have desnorkeled and then resnorkeled afterward.

If I want sound I just as 2-400ccs of displacement with a big bore solution and get the best of every world.

[Manfred]

I've considered this . . . and now I think I have my answer. Jake is in the business of finding horsepower (by any means necessary, but supported by evidence). If he rejects the claim that CAI's produce results, then I suspect that there's a generous amount of the "placebo effect" (epidemic among Porschephiles) in the glowing claims that promote these mods. If these marvelous devices did actually provide significant benefit, he would not only tell you so (he has no stake in it), he would use them. How can anyone ignore the experience and measurement devices (evidence) being cited?

[AndyA6]

Originally Posted by Jake Raby

Every car we have desnorkeled has lost throttle response and mid range torque. Many times we have desnorkeled and then resnorkeled afterward.

If I want sound I just as 2-400ccs of displacement with a big bore solution and get the best of every world.

I am surprised your comment has not prompted more responses here after all the desnork hype!!

[jaykay]

Originally Posted by Jake Raby

Every car we have desnorkeled has lost throttle response and mid range torque. Many times we have desnorkeled and then resnorkeled afterward.

If I want sound I just as 2-400ccs of displacement with a big bore solution and get the best of every world.

Okay I will bite..

How are you measuring throttle response....seems you would need a tp, rpm, plot. Do you have some graph to show us?

Maybe I should send you my short snork for testing...

[Jake Raby]

How are you measuring throttle response....seems you would need a tp, rpm, plot. Do you have some graph to show us?

I have three dynes in house. The majority of the past 15 years of my life has been spent belong their controls. nThat experience has taught me that a dyno isn't everything and I tune for what I feel is best along with what the plots state as a compound overview.

My Wife holds 4 Land Speed records in a 996, she set all 4 of them in one weekend after the car was .5 MPH too slow to set records in 3 of those 4 classes. I tuned the car so it performed best in relation to throttle response and torque and went with those settings even though the dyno showed a 6HP peak LOSS. On her first pass she shattered the record 3 times in a row. A dyno and a plot isn't everything.

I also have plots from my 28 channel race-technology DL2 data logger that shed a lot of klight on the desnorkel and even the CAI. Those ploits also are not everything.

I drive over 100 different cars a year on my 88 mile/day round trip commute. Time and time again I find holes in the powerband with the desnorkeled cars and I do not care for the modification at all. In my own Boxster I re-snorkeled and never went back.

All of what I state comes from direct experience; not parroted information.

[jaykay]

Sounds like some good experience.....do you think anything other than the stock snorkel area would be sub optimum for throttle response? As I mentioned I cut mine (3/4 s up from the outboard end) and velocity stack shaped the lip to try and stab for the best of both worlds.

[Jake Raby]

There are some alternatives, but for any engine with stock internals the factory snorkel is designed very well to optimize runner length.

Too many guys do the mod for a sound.. Thy lose a lot for that, just like they usually lose a lot for fashion purposes.

[mikefocke]

Recall that when Jake does an engine he goes back and forth from dyno to real world again and again. And yes he drives the car home and back over a very well learned road and if the real world doesn't reflect the dyno he'll tune it again until he gets the best balance...even factors in fuel consumption.

I know from talking to him several years ago how many experiments he went through just trying to learn the real world results of various exhaust mods, intake mods, tuning parameters, etc on various sized engines. He spent months on the project between tuning, dyno, track and his "home course" for dozens of iterations trying to find the right combination that wouldn't just look good on a dyno printout.

[Jake Raby]

Originally Posted by mikefocke

Recall that when Jake does an engine he goes back and forth from dyno to real world again and again. And yes he drives the car home and back over a very well learned road and if the real world doesn't reflect the dyno he'll tune it again until he gets the best balance...even factors in fuel consumption.

I know from talking to him several years ago how many experiments he went through just trying to learn the real world results of various exhaust mods, intake mods, tuning parameters, etc on various sized engines. He spent months on the project between tuning, dyno, track and his "home course" for dozens of iterations trying to find the right combination that wouldn't just look good on a dyno printout.

The lab is where I spend a lot of time.. And we built that lab ourselves to work in a very sensible manner. We built the shop and the labs with the same hands that build engines, you won't find anyone else that can say they did that!

I just finished a 6,788 mile trip (in only 8 days of driving) to Edmonton AB Canada testing the IMS Solution and my Gen3 engine combination on real roads and even traveled 107 miles of that on a dirt road through Montana- because we wanted to. That trip found us at every elevation between -400 to 12,000' and temperatures from 27F to over 90F. This took us through both the US and Canadian Rockies and through plains and the Columbia Ice fields.

The IMS Solution and the entire Gen3 engine performed slightly different in the real world than it did in the lab, but overall it exceeded our original projections for MPG, oil consumption and wear levels. We just finished disassembling the IMS Solution for evaluation and found ZERO wear, even after these hard miles and 5,200 continuous start cycles. The final testing in extreme cold will be carried out this winter in Illinois and I'll drive the car to Toronto to teach my winter class as well.

Its all about practical application. No other group in this industry understands their products as well as we do prior to releasing them. Period.

[Steve Tinker]

Hey Jake - good to see you have a decent plate on your mule, though your spelling of "wombat" is slightly askew ??
You must have an Aussie in your ancesteral background.......you're a lucky man if you do, theres not many of us left !!

[Jake Raby]

Originally Posted by Steve Tinker

Hey Jake - good to see you have a decent plate on your mule, though your spelling of "wombat" is slightly askew ??
You must have an Aussie in your ancesteral background.......you're a lucky man if you do, theres not many of us left !!

The car belongs to Charles from LN Engineering.. His Wife has Aussie blood.

[sweeper]

Jake I noticed in the last picture the random hand print on the driver side rear fender.....it looks like you left it while climbing out of the engine compartment!