Actually Shiv, I and Al made it a point to go very, very conservative on even race fuel. The timing is pure pump gas issue, and the air fuel ratios were also kept well under the racegas like 12.0+ . In other words, we could have squeezed out quite a bit more power out of her if we had true aggressive racegas timing and leaner 12.3 or 12.5:1 ratios, but I chose to keep a pump gas tune. Just the other night I ran 26psi on C16 mix and logged the wideband readings- all were perfectly well under 11.7:1. I got home and turned the boost down to 21psi and logged again-again they were perfect. I do understand that a full race tune might have netted another 25-30 whp pr more, but this was not the way we wanted to do things on my car.

Gil-superz

 

Good points !

This tune was not a so called "dual stage" map

What we did was run all pump gas settings and it was tuned very conservativly so that it will be safe to run at any boost level

In fact - we tested it on the dyno starting at 21 psi and then working up in 1 - 1.5 psi steps all the way to 30 psi to verify that all settings were safe and functional

What other tuners may not realize is that we have worked around some of the issues with advanced code revisions

The results speak for themselves - a nice daily driving 521 whp Evo with all the driveability and functionality of the stock ecu and loads of Porsche Turbo beating performance on tap. The best part is that the cost is comparatively less than the other options - while doing a better job.

 

can't say i know much about xede, but i have used tuned w/ an aem ems.... and honestly, you never see any professional race teams use either in motorsports besides AEM themselves, and there's a reason for that.

What I do see a lot of is MoTeC, in all kinds of motorsports and Autronic on rally cars... For a lot of these people cost isn't really an issue, and this leads me to believe that MoTeC is the best, with rivals only being really exotic stuff like EFI technologies or Pectel.

 

A race car is purpose built/tuned to perform a specific purpose, over a short distance, in specific conditions, and only has to last until the end of the event. Conversely, a street-driven car is (usually) intended to perform a variety of functions efficiently, over many thousands of miles, in widely varying conditions, over a period of several years.

This being the case, that which is best suited for a race car is not always the best option for a street-driven car.

 

but the short distances are far harsher than what a street driven car sees. the best way to find out a car's weaknesses is to take it racing. if evo's were simply stock, your statement would hold 100% true, but the fact is many of the people on this board are bluring the lines between race car and street car.

there's a reason why mitsubishi uk chose the m800 to power their fq400. it's hard for me to believe that it runs anything less than perfect for the price they are charging on the car.

Motec products can idle 1600cc injectors w/ an air fuel of 14.7. the map is user scalable 20 x 40. each cylinder has its own timing and fuel map for cylinder balancing. theres a multitude of auxillary sensors you can use to do corrections.

the outputs are custom configurable to run a multitude of devices. it can ramp boost against many different sensors. it has two step abilities, that put aem's to shame. i could go on and on about this product, because it really is just that good. if you've never run/tuned it before, or have nothing to compare it against, you wouldn't understand.

 

That's great!


...but you don't need it.

 

yea, but technically you don't need an EVO either, and that's never stopped anyone from wanting and buying one.

 

Well, that's true. I could just as easily have bought a Saturn and pocketed a good deal of money!

Nevertheless, I'm not one who's looking for more ways to throw money at it. This being the case, where making increases in power is concerned, it makes little sense to me to spend $1k or more for a device that I don't really need, when I could just as easily apply the same toward a nifty turbo kit.

 

COMMENT REMOVED - OFF TOPIC

 

personally, i don't know why people jump to using aem ems when they usually don't have a good decent knowledge of tuning.....thats why most of them screw up their cars....a piggyback like xede is great for people who AREN'T professional tuners and can allow professionals like Shiv to tune their cars and not have to worry about driveability issues later on from tampering with a something that you aren't familar with......

 

AEM is the best product that can handle the most mods but I don't know if its the best bang for the buck for most people the Xede or UTEC would be totally sufficient and for about 1/2 the cost.

 

i have 6 years of experience in efi, i've mapped from scratch motec, autronic, aem, speed pro, hondata.... my personal ride is pictured in "building tuning high performance electronic fuel injection" by ben strader in the "motec" section. I also build complete engine wire harnesses from scratch, and two of the street cars I've tuned have run 10's with trap speeds near 140 mph.

exede seems to work pretty well, but in the world of professional motorsports piggy back tuning/computers is at.

 

That's great but it still doesn't get over the fact that stand alone ECUs, for the reasons mentioned, aren't the best choice for the majority of people who want a fast, reliable and flexible daily driver. If you want to dedicate your ride to the drag strip or road course, that is one thing. A well-mapped stand alone will fit the bill just fine. Especially if it lives off of a strict diet of c16. Having a full time ECU tuner on hand also helps. It becomes a whole different ball of wax when consumers are asked to make these compromises. Some are willing to do it. Others aren't. It's just important that consumers should be aware of their actual needs and requirments as well as what different systems are capable of providing with appropriate tuning.

Shiv

 

While motec is my favorite engine management system, I agree that it isn't for everyone. For one thing it is expensive and it is complicated, so I apologize for that last statement.

 

Missing a few. Why not put the flashes up in the poll and the HKS V Pro which is really a kick *** piece.

David Buschur
www.buschurracing.com