PIGGYBACK VS ECU FLASH

clutchplate

///Member
I have one ! ..
but b-chip. gonna upgrade to Q when I fit the turbo's ..
I think allot of people have them, they just don't say.. I know Kobus has one also
 

clutchplate

///Member
kewl, I'm taking my car to get re-tuned justnow.

hey dude, tell me. the unichip can modify the crank signal right ?
lemme tell you why I ask ...
I know you like AACC, they made my flywheel right, but the friggen dude mis-alligned the trigger wheel on my flywheel for the crank sensor..
so now I wanna get the unichip to modify that single sothat my timing can be correct again. because at the moment it's very weak and I have a consistent misfire on cyl2 and cyl8.
so bad that the engine light starts flashing after 2000rpm and then INPA logs misfire messages .. normally it goes into limp mode then after a few seconds but I've managed to trick it to not do that..

neways, :) hope u can tell me
 

STREETRACER

Active member
Clutch bud yes with the new chip you can! ill just make sure if the V8 runs 30 -1 or 60 -2 timing! Why dont you phone Fanna and get him to sort it out for you? as its his F***up! if all fails why dont we just realign the sensor position?
 

clutchplate

///Member
agh, nah, had enough issues there, really don't feel like going back there. yea, thats what I was gonna try next. but didn't wanna grind a bigger hole in the gearbox.. bleh.
so the b-chip can't do this ? :/ eish
 

STREETRACER

Active member
Ill get hold of oom pieter and get back to you.. just pop me an SMS with your nr.. my nr is 082 895 5229..
Ill probably get an reply from him before tuesday!
 

Twinz

Forum - Support
Staff member
I like Streetracer's views on this thread...:thumbsup:

All my vehicles have the chiplogic flash on and have been running for a few years with it with absolutely no problems...with good fuel consumption as well.

My previous 335 had the chiplogic flash and it made serious power and i was very happy with it.:thumb:

My current 335 runs with the JB3 and I am extremely satisfied...:thumbsup::clap::clap:...the piggy gives me the (personal) tuning controls on the car as well as the power choices (maps); it also integrates with all my other power add-ons & devices such as meth; CMGS & future N02...and i can do all of these by myself without the help of a professional tuner. Of course this does not mean that i do not get help from others such as Zeemax...those expertise are definitely required if your car is heavily modded...my point is the tuning parameters is in my control, albeit limited.

I will never argue or say that a piggy is better than a flash or that the JB3 is better than chiplogic or any other flash...it comes down to personal preference and the needs of the owner of the vehicle. There are great flashes out there but there are also very, very good piggybacks available.

Rennzport promotes the JB3 for the 335 & 135 but we also promote a couple of flashes for the 335 & 135 and for other BMW models as well; it all comes down to what the customer requests from us.
 

STREETRACER

Active member
This forum was my first introduction with the JB3 and i just read awesome results! I will surely try them out as i am obsessed with tuning and like to experiment! I also had the Chiplogic flash on my M3 which was awesome but couldnt do everything i had in mind plus i had to travel 170km to get to O.B, i change my setups allot to see where i gain and loose!
 

Kisho135i

New member
guy i am 1000km from ob. I live in E.L. I just want to chip my 335, i want to keep my warranty. I know when you chip or ecu the boost go's up and obviously this has a negative effect on the engine over a long period of time and i really want to keep my bm for a while so i would like to ride on my standard map all the time and just when i need or have the urge, flip the switch. What do you guys advise?
 

STREETRACER

Active member
Ill get you a Nr for a dealer in your area! The stock map you can just optimize your fueling and timing which will already make a power difference and will not alter reliability , and the second map can be :censored::censored::censored: Wild!!!!
 

STREETRACER

Active member
Send Sherwin xcede and Twinz a PM they will be able to give you more info regarding that!
I can only vouch for Dastek as i know the ins and outs of the chip by heart!
 

Kisho135i

New member
I know the guys at dyno, my vrou got fam in joburg so i thought of coming up before the year ends and just doing it there discretely and properly.
 

clutchplate

///Member
nice ! STREETRACER you rock bro..
I popped down to SAC, checked out the qchip features and fiddled with the software abit, it can do some REALLY neat stuffs!
however for my case I see that you can only select a crank style and not modify anything else for the crank.. so dastek would have to create a custom crank style for my car.
since its like 60-2 and then + or - x value...

but ok, I think what I'm gonna try now is get a Pic micro to read the crank signal, shift it up or down and recreate it. and then see if I can get it to stop mis-firing..

if that doesn't work, I will have to try to move/align the crank sensor to the right place, OR replace the entire flywheel.

sorry for thread jacking.. but yeah. been most helpfull.
 

Twinz

Forum - Support
Staff member
Kisho135i said:
I know the guys at dyno, my vrou got fam in joburg so i thought of coming up before the year ends and just doing it there discretely and properly.

Kisho, based on all the nooby questions you asked, my suggestion is that you rather pursue a tuner in your area or province as streetracer suggested.

You will thank us in the future. The 135/335 is highly tunable but it is not as easy as slapping a tune on it...the first couple of months after the tune, flash or piggy you will be monitoring the car and i can almost gaurantee you there will be "something" to check as the ECU adapts...most of the time boost related. We have seen that even the most conservative tune has thrown up boost spike related limps etc..

Revo and i have been assisting a few people in Cape Town with JB & other tuners flashes...mainly code read/clear them because the owners are either to shy or scared they may have damaged the car; which is seldom the case.

The ideal is you want to be sufficiently close to the tuning company; so you can just pop in for support or a resolve, when there is an issue...

All the best
 

George Smooth

///Member
Kisho being in the place you are situated I would possibly go for the piggy back but not Dastek. I do not feel the tuners that install the systems have had enough experience with the N54. To date there has not been a single Unichip fitted car that has been able to perform up here at the reef that I have seen. I have seen three cars run 14's up here which is the same as stock. I am not saying the unit is at fault but most probably the tuner. I am also not sure if you can just plug it into the harness or if wires require cutting. This you got to research though.
The Procede offers plug and play as well as the JB3 although I have also not really seen a JB3 perform up here beside a dyno run where they used crazy boost and it showed whicked torque figures. They have since optimized maps etc and am sure they are good choices.
The optimum would be a flash tune in my books but then you got to think of the risks of having BMW overwrite the software when the car goes in for service as they normally update the ECU. I know as a fact that Chiplogic's software is not detectable in anyway and leave no evidence. I ran the 1 bar map for a year and a half and never had single engine check light. So in this case the risk will be that the car will be running no software until you can get it reflashed again.
With the piggy backs it is known that errors do come up which might alarm dealers to the fact that the car does have a tune. This makes having a fault tester and eraser a virtual must. The procede has one built in and JB sells a Bav Tech tool for a good price.
Regardless its virtually impossible to open the ECU area for fitment of a piggy back without dealers noticing but keep in mind the dealers are not the Gestapo people make them out to be. They do not put the car under a microscope each time it goes in and in a area like EL I am sure things are more lax.
 

STREETRACER

Active member
RGM and Dastek and Venom Racing both do the UniQ chip for the x35i series! and yes there is a U-connect plug and play harness for the chip which does not require cutting of any wires!
With the dastek chip you will never get any error codes as the ECU get the same value readings as before! I fully removed my lamdas and with a daignostics test i still get reading as if they are still there! The new chip fools the ECU to think nothing is changed from stock! you can clamp sensors and signals like you want with the chip!

George i can see you are not a very big DASTEK fan, but please when you get time read up on the new UniQ and Q+ you will be amazed!

Driver error i recon has allot to do with the 14s runs you saw! I raced a 335i with down pipes, software, LSD, bigger cooler etc.. and his quickest time for the day was 13.7.. So its not always the chip or tuner look at the driver aswell!

With the Q chip installed when a value on the map is ''0'' then it gives you stock output in that range! so the tuner just corrects the ranges that does not run optimal! And when you keep the car under load and tune the timing and fueling and see with a live tuning dyno if you gain or loose and you tune it optimal every 500rpm.. there is no way that any chip or software can get more gains! so you run your boost at say 1Bar.. timing and fueling runs optimal vanos is advanced and retarded where needed! how can any other chip or software make more power?

A car needs 3 factors to make power! Air (which includes boost), timing and fuel... give the right amounts at the right time and the Engine will make optimal power! the new Q chip can manipulate any value, signal or reading the x35i has to offer!
 
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