I guess this is towards the guys that has the vishnu stage upgrades. I have the exede ecu with stage 1. I recently bought the ingen intake system. I have not installed it yet. I know the vishnu path requires the stock box is used. I have the facilites to fabricate a cold intake for the injen. I would remove the windshield bottle and route the filter through that way. since the stock air box smooths the airflow to the air sensor, would extending the pathway from the filter to the sensor help out. like making the cold air option. I have seen several cars that has the air sensor farther away the filter. Has anybody that has the exede done this or better yet used the injen intake. I would hate to return the injen system and stay with the boring stock box. don't get me wrong I really love a monster power setup but I would like my car to look sharp too.

 

Mods, please move this thread to Vishnu where we can get homie the help he needs.

The Vishnu Xede doesn't require the stock airbox, it requires the stock MAF sensor. We all use the stock airbox because it works very well with the stock MAF by creating a very consistent, accurate, and MEASURABLE air flow. Your questions are good and I look forward to seeing what Shiv says.

 

come on guys 37 read and no reply. I am sure there are a few guys out there that has the exede and may have bought the injen intake.

 

They're putting down 563 whp on the stock airbox. Still think that intake actually helps?

Warren

 

anybody?? anybody?? knock knock. hellllooooooooo.

 

Can it work? Yes, but...

Regardless of how far out you move the intake, it will flow better than the stock airbox and therefore generate different readings than the stocker. The bottom line is that you will have different MAF readings and neither your ECU nor your XEDE are setup to handle them ... the only way around it is to get your car custom tuned and end up with a custom map for your XEDE.

Personally I've thought about going this route before, but IMHO it's just not worth the hassle. I'd rather spend the cash on a splitter or improved IC piping.

l8r)

 

I second this thought. I've talked to a few people who have replaced their intakes and the usual answer I get to "Why? What did you gain?" is "It makes a really cool sucking noise ...". I've done a bit of research and the numbers that I see quoted for hp gains are within the potential standard deviation for the dyno/car combination. You might gain a few horsies, but what is the return on investment ? insufficient in my humble uninformed opinion. This post and a few bucks will get you a longneck during happy hour.

I would suggest that you go with IC piping, the Samco hose, etc and leave the intake be. IC piping and Samco hose will be my next hp mods.

 

Hi guys we understand that people have a fixation on intakes. Its not than intakes are bad or anything its that they cost companies like 15 dollars to make the cruddy tube style intakes no R&D goes into this if it fits it works type attitude. Just so happens their design also deals with one of the most important tuning sensors. Its the unlaminar airflow across the sensor relative to the position of the sensor thats the problem. Maybe we should look into a properly reading intake

 

Are you telling me the stock airbox is not a restriction even at 500+whp????? Im sure if Shiv slapped an open element on, richened it up a bunch, there would be some whp realized...

 

The stock airbox's benifits outweigh any downfalls it may have. Plain and simple.

Terry S

 

So the readings that the air flow sensor gets from any cone type filter is irregular, that I understand. As I see all the vendors all have the filter right beside the airflow sensor which I can understand why the sensors don't like this type of setup. My original post ask If I extend the filter farther out and have enough piping to stabilize the airflow. I would think the air flow sensor would see similar readings as a stock box and have the advantage of getting colder outside air. has anyone tried this. I may just install it and install the fuel pump just to be safe. (from what I read, adding a fuel pump does make the car a litter richer) unfortunatly I don't have the facilities to check my A/F ratio and timing with type of setup. I do plan in the very near future to get my car tuned by Shiv (now that I have the pump, cams 264/272, vishnu cam gears in my possesion). Thanks for all the input.

 

Dude, pleeease don't believe that you are going to run richer with a higher flowing fuel pump. Unless your stock pump is already failing, there will be no difference, and running an aftermarket intake can result in lean conditions - even my HKS panel filter on the stock airbox leaned my car out by close to half a point across the board.

Whatever you decide to do ... once you put the intake on, put your car onto a dyno that has a wideband O2 and make sure that your AFR's are still ok, especially if you're running on pump gas. On second thought, if you already know that you're going to have it tuned by Shiv, then the best thing to do is probably wait until you're ready for your custom tune and have everything installed right before the tune...

l8r)

 

Shiv I was thinking about the same thing. I am getting ready to come up there some time soon to get the cam gears and water injection kit but I am very very in the injen intake as I love the way intake sounds. I know I know but I love how the turbo hesss's more and more. the question is can we tune it with the intake or no? if the answer is no then I guess I have no choice but I had to ask.

thanks

 

The most important quality one can look for when selecting an intake is laminar flow across the MAF, which ensures better fuel metering at WOT.

I know for a fact that some cone filter setups that I've used in other MAF equipped vehicles can upset flow. If one goes to a different intake setup, he would be advised to go back to the dyno and compare the A/F readings with a previous run using the stock airbox. If he sees a difference in those readings, he will have to recalibrate the WOT A/F to get best power.

As far as fuel pumps, a high capacity pump can indeed affect the A/F at WOT if and only if the stock pump cannot maintain steady pressure at high power levels and/or the aftermarket pump exceeds the ability of the return line to bleed the excess pressure. If there is any difference in rail pressure ONLY at WOT, it will show up in the A/F. Since we are in open loop at this point, the computer cannot detect the change in A/F and therefore cannot compensate - which means we go back to the dyno and recalibrate our WOT A/F.

 

I wish I had read this thread before plunking down $400 for the Injen intake and 3 hours of work installing it...now I wonder if it's better to just remove it and go back to stock...Geez, what a waste of money and time.