Gen 2 CP-e users come here!

[PXLpainter]

No need for the tunable. Unless you have some serious dyno gear in your shed, you'll never want to be messing with the map. And you can always trade up if we ever get another part that effects the fuel map. (i.e. headers)

Only crisp could be driving down the road and decide "Hmmm, I'd like it a little leaner at 4500 rpm" They spent days finding the peak power for each band... I see no way of improving on the map.

Great - NOW you tell me after I already ordered my tunable setup!!

I'm hoping it will still be handy after I get some custom exhaust work done down the line...

[Sebas007]

^^^

Interesting...custom exhaust. Hurry to see and hear any exhaust mods !

[crispone]

Only crisp could be driving down the road and decide "Hmmm, I'd like it a little leaner at 4500 rpm" They spent days finding the peak power for each band... I see no way of improving on the map.

ACTUALLY.... you are RIGHT! I HAVE been evaluating the SLIGHT dip around the 4,100 - 4,400 RPM mark... especially in the HIGHER gears. The subtleties of air/fuel flow with respect to variability on LOAD as seen through the tranny/converter/mechanicals AND the "breathability" of any given SPECIFIC VEHICLES plumbing... down to flow characteristics through it's mass-production matched runners and mating seams... there is ALWAYS some minor variance from vehicle to vehicle off ANY standard map... unless you WROTE it for that SPECIFIC vehicle... and even then, a little "fine tuning" is not uncommon after running under varying conditions over a period of time.

I have transferred a set of modifications from ONE motorcycle of a given model and year... along with the piggyback computer and map... and had GOOD results but STILL made small incremental adjustments to portions of the map for both RESPONSE and up at the top end under full load, WTO runs as well... of course, for a MOTORCYCLE, you change the INTAKE PRESSURIZATION a little bit more due to the presence of your intake runners on the NOSE of the vehicle, and a PRESSURIZED airbox setup at HIGH SPEED... the DYNO doesn't necessarily capture this, even with TURBO FANS on the front... (hard to create UPPER TRIPPLE DIGIT wind into the face of the vehicle artificially...)


-crisp

[crispone]

^^^ Oh, yeah... as an example... my LAST GSXR project had a HANDLEBAR SWITCH with 3 different maps selectable at will based on FUEL being run and operating conditions and characteristics sought...



-crisp

[CosmicGrooves]

A few more questions:

How does this affect gas mileage?

And, do you still have DocJohn's mod or does this completely do away with that need?


Lastly, do you out run any cars now that you couldn't before?

[crispone]

A few more questions:

How does this affect gas mileage?

And, do you still have DocJohn's mod or does this completely do away with that need?


Lastly, do you out run any cars now that you couldn't before?

Mileage - depends on HOW HARD you push on the pedal.

DocJohn's - GONE

Outrun - NO DOUBT!


Just DO IT!


Note: MY mileage has DROPPED, but I DRIVE the car MUCH MORE aggressively now. So that is to be expected. On the FLIP side, I've done most of a tank of gas on a LONG HIGHWAY haul WITH the CP-e, and I got 31.3 mpg... better than before. (BUT you GOTTA stay off the HONK! )


Good luck!

-crisp

[Down2TheC]

For equivalent driving, I'd say you get about 2mpg better. When I'm gunning it a lot it's about the same.

[PXLpainter]

OK - so who here has been tempted to do a CAI from a CP-e kit?

I might assume you'd have to adjust the MAF wouldn't you?

[crispone]

OK - so who here has been tempted to do a CAI from a CP-e kit?

I might assume you'd have to adjust the MAF wouldn't you?

If I do it, the COLD AIR will be CHANNELED to the CURRENT CP-e configuaration... perhaps a LONGER tapered cone filter after moving the battery...

My thinking is, WHY move the entire CP-e INTAKE location relative to the MAF and negatively influence the map? If the objective is COLD AIR, you can certainly PLUMB the air from ANYWHERE up front and have it feed into a "large-ish box" so you don't risk "pressurizing" (up OR down) the charge... thereby, minimizing the impact to the existing map. (Might STILL warrant playing with the tuning...) The "NET EFFECT" of bringing in positively cooler air (under any given conditions...) is very much like "bolting on a cool day".... crisper response potential... as well as incremental power throughout... VERY incremental... but there.


I'm interested in anyone elses trials and tribulations on such an endeavor...

You have my support!


-crisp

[PXLpainter]

^^ LOL! "Crisper" response!

Yeah - I'm just talking about getting colder air in - not a biggass "forced cone" like some of these rice-rockets have sticking out the front.

Just an extension of the SRI tube down lower to get more cold air.

[Sebas007]

A CAI can brings down the temp down to 20F less in the intake...the air passing thru the radiator is really more hotter thanthe air from outside...I calculated a power potential of 2%-3% on the current config, talking of 4-6 whp. It makes me think twice...if I go or not with the CAI. I had this project at the end of last summer...but I concluded that nothing can be made without moving the battery in the trunk. Tacti battery config work well with the I4...but there is no enough space with the V6 config.

What do you think guys ?

[Down2TheC]

The crisp logic seems sound. Channel the outside air and box up the cp-e filter and the map should remain the same. Don't think there's much HP to be found though. (i.e. not worth the hassle or the ugly I'm guessing)

[rojamay]

Yeah, yeah. So, when is a CP-E going to be made for the I4?

Yes, I know it probably isn't....ever, but it doesn't hurt to ask.

[Sebas007]

The only non-turbo I4 engine that CP-e worked on is the I4 in the mazda 6. But they have big sales numbers with Mazda...it's why they make it.