My question is more or less what the topic says. It appears even companys that include a flash in there package such as buschur still include a mbc. If i get the ecu flashed, and plan on setting boost to max with stock turbo on pump gas and dont have plans to adjust boost is a mbc still suggested? Thanks, Chris

 

Cant raise boost with the flash - it can only remove boost taper some. To raise boost without a BC, you have to modify the boost lines and restrictor pills, but the boost is not as steady. If you will absolutely never change your boost for racing, different temps, or inclement weather, then you dont have to get an mbc.

 

thank you very much. I was hopping you would reply. Ill just buy one since there so cheap anyways.

 

Look into a Works flash. The simply use the stock boost solenoid and can program boost level desired. Their "kits" include a replacement boost hose in order to enable this.

Quality product, too.

 

All flashers can do that - Works is no different other than costing a lot more.

 

Im very unsure to what flash i would get. Once i do a couple mods such as fuel pump, intake exhuast ect, i will probably do dynoflash eflash. just because its cheap easy, and no downtime on the car. Down the road ideally i will have AMS tune it since they have worked on my 240's in the past, my friends deal with them alot, and there not to far from me. Downside to ams, is my buddy just put a gt35r on his dsm, and had to wait about 1 mo to get onto he dyno due to how busy they are, which is probably why i will do the eflash to start.

 

Dynoflash will be in Chicago in 2 weeks doing custom tunes for around $300. He was also just there a few months ago, but the demand is so high he came back. People aren't fond of waiting months for AMS who is so booked.

 

Does he have a dyno that he does the flashes on when he comes to chicago? or does he just street tune them with some type of data logging? If he uses someones dyno where at?

 

Catch up with the EvoM world. Al goes all over the country doing custom road tunes. He doesn't need or use dynos unless one is specifically supplied and paid for separately by those getting tuned. It happens occasionally, but not often, and I don't think he's ever used a dyno in Chicago.

Yes, of course, he uses some very sophisticated logging equipment that graphs wideband AFRs, actual MAP boost, g forces, and knock voltage on one screen. He also logs timing separately through the OBD-II port, then makes cell-by-cell changes in his flashing software until it's all perfect. Don't need a dyno to tune, especially a non-load-bearing dyno that doesn't mimic the street, because the tune always changes when you go from the dyno to the road.

 

Works also claims zero boost taper (less than 0.5 psi) out to redline. I haven't seen any other flash that claims this. Well, many claim "no boost taper", but when I look at their dyno plots I see a few psi drop which to me, is boost taper.

Edit: I also forgot to mention that Works offers free reflashes for the life of the car.

 

Warr, al's flash cant control boost. It can RAISE boost, but not control taper. Works flash does. I know you have to push your sponsor, but your package wouldnt include a MBC if Al's flash could control boost dude.....

 

Oh just saw last post. Yep, I can attest to that, absolutely NO boost taper. They have mine set at 20 and its rock solid.

 

Sorry, gotta differ with you on this blanket statement. If you go WAY back to the original flash tuners discussions (years ago) you'll eventually find the differences in the approach each flasher uses.

That and Works does have better ultimate control over boost levels from ECU alone.

That all being said, it has only one tune just like any other flash and you can't "turn up the boost" just because you put in race gas or whatnot. One would need a separate boost controller for that.

 

Free reflashes only if you don't alter the car too much. Adding cams, etc. would cost ya ... I invite you to call 'em.

Also, keep in mind, you can still use a separate boost controller with a Works flash. Nothing prevents you from doing that. Works would likely be happy to talk with you about the pros and cons, but their flash doesn't prohibit it.

 

NO it can't, but I see more and more that people are fooled into thinking this. Look, it's the SAME FLASHING SOFTWARE with the SAME ABILITIES. The only way Works changes the boost is by using the modified boost hoses. Any flasher can remove MOST of the taper, but no one can remove ALL OF THE TAPER. Show me dyno plots with Works flashes where there was a MAP sensor logging boost with exactly 20psi from 3500-7500rpm, and I will concede. Many people claim no taper based on their boost gauge, but when they see the true boost logged by a MAP sensor, they are very surprised. Another thing is that 20psi is stock boost anyway, so the stock turbo can easily maintain that longer than say 22-23psi. The lower your boost, the less taper there is.

Yes, Dynoflash and ANY flash tuner can "control" boost with the ECU. Vishnu does it, Al does it on request (yes, he has modified boost hoses, too), and any other tuner can do it.

My package includes an MBC, because we PREFER to have direct control over our boost. It's much better and easier to have full control over raising (or lowering) your boost whenever you want rather than having a 100% static boost all the time. For those few who prefer to let the ECU control boost, they can opt for that whenever they want.