Cobb AP: ?s on product, features, and various maps incl Perrin maps go here [merge] - Page 34

Q15H · Aug 14, 2009, 09:42 PM

Can I use the AP on my X to read SES codes (OBD II Service Engine Soon codes)without installing or marrying the unit to the car with the codes? If no, how do I install/marry the unit without installing a new tune?

empirepb210 · Aug 14, 2009, 10:14 PM

just marry it, it wont install a new tune nub

Q15H · Aug 15, 2009, 10:24 PM

Quote:

just marry it, it wont install a new tune nub

Just an update. The AP will not "install" to the car without also selecting a tune (map).

However it has a Troubleshooting menu item that will read and clear codes without being installed (married).

ice1874193 · Aug 17, 2009, 02:28 PM

Quote:

Originally Posted by elihanselman

Just Ordered an AP, Any Word on K&N Panel Map yet?
Anyone here used the KN Filter with any existing maps? Results?

Update After Looking on the other EvoX forums, Courtesy of User hollywood_X

"So I took the logs you sent me and went throught them.
(For the rest of you reading this he was using the K&N filter with an HKS map.)
The K&N panel filer is within 1-2% on calibrations all the way down the line and pretty much a perfect match. so I would say your more than good to go on using these on that map."

any confirmation from cobb?

deanvader · Aug 18, 2009, 04:57 PM

Quote:

Originally Posted by imdrew12

Does anybody know if the Cobb estimates wheel or crank hp using the dyno feature?

It is wheel hp, but it is for reference only and might not compare to a proper dyno number, especially because vehicle weight can be a big variable.

chidevildog · Aug 19, 2009, 02:05 PM

can i run cobb stg 2 93 oct. with a perrin drop in filter and a hks hi power catback with the boost pill removed?

raytrix · Aug 19, 2009, 05:13 PM

When is the Injen intake or HKS Suction intake maps going to come out?

damen · Aug 25, 2009, 01:08 PM

I already have a MBC installed and running a few extra psi - would the AP have issues with that? Would I need to revert back to the stock boost control system?

grafix143 · Aug 28, 2009, 07:22 AM

do you guys know who can create Stage II maps for EDM evo's ?

boostedgraphite · Oct 19, 2009, 05:55 PM

bumping this topic up: anyone else try running the K&N drop in filter on the HKS drop in map?

flightz71 · Oct 23, 2009, 02:22 AM

Hey guys,

With a Cobb AP stage 2 tune (91 CA gas here), the website states the factory intake and filter must remain intact but a turbo back exhaust is required as well as the removal of the factory boost pill.

Sorry for the noob question but would the tune work properly if say a AMS intercooler and intercooler piping were installed?

Thank you in advance for your replies.

kozmic27 · Nov 1, 2009, 07:17 AM

Quote:

Originally Posted by Q15H

Can I use the AP on my X to read SES codes (OBD II Service Engine Soon codes)without installing or marrying the unit to the car with the codes? If no, how do I install/marry the unit without installing a new tune?

You can use an AP to read codes and reset codes without marrying it. I've done it.

Quote:

Originally Posted by damen

I already have a MBC installed and running a few extra psi - would the AP have issues with that? Would I need to revert back to the stock boost control system?

Yes. The AP uses the ecu to control boost. A stage 2 is around 25 psi.

Quote:

Originally Posted by flightz71

Hey guys,

Sorry for the noob question but would the tune work properly if say a AMS intercooler and intercooler piping were installed?

Thank you in advance for your replies.

Yes. The intercooler is between the mas and the intake, so its air is already measured.

mrMTB · Nov 2, 2009, 10:11 PM

Quote:

Originally Posted by chidevildog

can i run cobb stg 2 93 oct. with a perrin drop in filter and a hks hi power catback with the boost pill removed?

No. Stage II requires a turbo back, not cat-back, exhaust. If you are running the factory downpipe and cat, leave the pill in and run Stage I.

Quote:

Originally Posted by boostedgraphite

bumping this topic up: anyone else try running the K&N drop in filter on the HKS drop in map?

Works like a champ. You can try the normal Stage I map and log for timing- if you're not getting knock, don't bother with changing; if you do, go with the HKS map and relog.

flightz71 · Nov 4, 2009, 06:42 PM

Quote:

Originally Posted by kozmic27

You can use an AP to read codes and reset codes without marrying it. I've done it.

Yes. The AP uses the ecu to control boost. A stage 2 is around 25 psi.

Yes. The intercooler is between the mas and the intake, so its air is already measured.

Ok so even more of a noob question... now i'm confused to how a intercooler works:

I thought the purpose of the intercooler is to cool down the temperature of the air flowing through the intercooler and therefore increasing the density of the air. If the air density is increased... the additional air needs to come from somehwere... so I'm guessing more air has to be drawn in from the intake? If more air is being drawn in... than the MAS will get that reading... regardless if it's after the intercooler or before.

Therefore... the installing a intercooler would be no difference versus installing a new drop in filter to increase air flow right? And from this thread... I've concluded that anything which messes with the factory MAS reading will not work correctly with these Cobb tunes.

Someone please correct my confusion somewhere? Or does my logic deduce that intercoolers cannot be used?

-Calvin

kozmic27 · Nov 7, 2009, 03:17 PM

Quote:

Originally Posted by flightz71

Ok so even more of a noob question... now i'm confused to how a intercooler works:

I thought the purpose of the intercooler is to cool down the temperature of the air flowing through the intercooler and therefore increasing the density of the air. If the air density is increased... the additional air needs to come from somehwere... so I'm guessing more air has to be drawn in from the intake? If more air is being drawn in... than the MAS will get that reading... regardless if it's after the intercooler or before.

Correct.

Quote:

Originally Posted by flightz71

Therefore... the installing a intercooler would be no difference versus installing a new drop in filter to increase air flow right? And from this thread... I've concluded that anything which messes with the factory MAS reading will not work correctly with these Cobb tunes.

A brief intake flow chart:
Filter->Intake->MAS->Turbo Inlet->Turbo->UICP->Intercooler->LICP->Throttle body->Int Manifold->Head
No. Installing an intercooler is only going to effect measured air, and therefore it will not have an effect on the mas reading. This is very different from changing a filter or intake. Power gains from an intercooler are due to denser air at the cylinder intake. The ecu is able to deal with this because even though the air is denser, it is air that the ecu has accounted for by weight (g/sec).

It is not just Cobb tunes, it is any tune. Anything you do forward of the mas, like intakes, has the potential to effect the tune, by changing the airflow over the mas, and effecting its measurement of air. This then in turn effects how much fuel the ecu meters, possibly effecting your afr. Any gains from an intake are gonig to be due to increased air flow, not a change in air density. Some intakes actually change the mas housing, making it more likely to effect the tune than intakes wich leave the factory mas housing in place. This explanation does not take into account that the car is pig rich from the factory, and to a point leaning it out makes power. So please don't read anything into this.

Quote:

Originally Posted by flightz71

Someone please correct my confusion somewhere? Or does my logic deduce that intercoolers cannot be used?

You may be over thinking it, and confusing yourself, since you seem to understand this, but are still confused. So short version is intercoolers are fine on an off the shelf tune, intakes not so much.