[sn:afu]

I've had a good search around for what I was after like a good n00b but couldn't find anything specific enough so thought I'd throw up a question here...

I'm finally going to take the plunge and get myself a JB4 (and probably a few other bits)

I spotted this offer - http://wwd.n54tuning.com/n54-tuning-...downpipes.html and upon doing some more reading they say they only support LHD cars.

I then also spotted these as well - http://www.burgertuning.com/cowl_fil...w_135_335.html

So my list of questions then:

• Has anyone had any experience with these DP's or is it better to order the JB4 from BMS and then source DP's in the UK?

• If get them from the UK, any recommendations?

• Are the cowl filters worthwhile?

• Is it worthwhile investing in a FMIC whilst I'm at it at this point in time?

• Which map do people run mainly on the JB4? Or which map would be recommended on a set up of just DCI and DP's?

Appreciate any comments or guidance

[Dann]

Personally I wouldn't bother with JB4 anymore. Go with the MHD flash instead.
Cowl filters will let loads more noise into the cabin from the turbo and filters

[imy]

Ive never heard of those tbh.

I bought mine separately. Got my jb4 dci and usb combo from bms. And ive just installed some vrsf dp. I think an issue with dp's are general finish quality and fitment.

However its alot easier for me to get stuff over from stateside. Ive got alot of friends there and my folks are always flying back and forth.

Autoparadise stock this stuff, price wise its the same in £ as it would be in $.

Those cowl filters look interesting and at that price is probably something i would consider.

I run map 5 with dci and dps.

[sn:afu]

Originally Posted by Dann

Personally I wouldn't bother with JB4 anymore. Go with the MHD flash instead.
Cowl filters will let loads more noise into the cabin from the turbo and filters

Why would you go with the MHD flash over the JB4?

Hmm maybe I'll see if there are any videos around with the cowl filters on then

[imy]

Ive driven with the cowl filters off before and you do get alot of air whooshing noise on throttle.

[Dann]

Originally Posted by sn:afu

Why would you go with the MHD flash over the JB4?

Hmm maybe I'll see if there are any videos around with the cowl filters on then

Price.
Availability of new maps.
No wiring or anything.

[Aragorn30d]

Plus its a proper tune rather than a bodge.

[imy]

Its not a bodge. Not sure what sort of experience youve had in your life with the jb4 but the masses use them stateside with no issues.

[sn:afu]

Originally Posted by Aragorn30d

Plus its a proper tune rather than a bodge.

Maybe you can explain why you think its a proper tune rather than a bodge?

[Aragorn30d]

The JB4 fiddles with signals going to and from the ECU, in order to do things the ECU does not intend, nor know about.

Its quite simply the definition of a bodge.

A remap correctly modifies the ECU's internal mapping, such that the ECU is fully in control of the engine and intends for the extra power/boost etc to exist, as it should be, as it was designed for. With a proper remap, the engine ECU, and all the factory protection routines and algorithms are in control and know whats happening. It is the correct way to tune a car.

Just because people use them and dont have issues, doesnt mean its not a bodge.

The very fact your asking people which of a pre-defined set of maps you should choose highlights the whole issue with these boxes. Your engine should be correctly tuned for the modifications you've made to it. Rather than having some pre-defined set of bodges applied to a standard tune where the ECU has no clue whats going on, and that may or may not fit your engine particularly well.

[windymissile]

Every single JB4 thread I read on here, Aragorn chimes in with the whole "It's a bodge!" line... :-)
The JB4 is great at what it does. And it can do much more than a flash can.
The best solution is a JB4 with a stacked flash. All the options of the JB4 with the finesse of a flash from your tuner of choice.

WM

[Aragorn30d]

Not every thread, only new folks that dont yet have one.

What exactly can it do (or more importantly does it need to do) if the engine is tuned properly?

[RajB]

Most remap companies do not tailor a map to specific cars and their mods. Mappers would need to live map the car and log and that would take hours upon hours to do correctly so most maps are simply adjusting the standard map already on the ECU. So in essence the same as the JB4 but it sits outside of the ECU.

The JB4 has plenty of failsafes built in too so actually provides an extra layer of protection.

It's all horses for courses.

[AWSAWS]

Originally Posted by windymissile

Every single JB4 thread I read on here, Aragorn chimes in with the whole "It's a bodge!" line... :-)
The JB4 is great at what it does. And it can do much more than a flash can.
The best solution is a JB4 with a stacked flash. All the options of the JB4 with the finesse of a flash from your tuner of choice.

WM

Yes this is why we run our JB4's with back end flashes. With the benefit of easy boost control, custom user adjustable maps on the fly, meth flow mapping, support for port injection, throttle body injection, Nitrous etc etc etc.

Knowledge is power.

[Aragorn30d]

But most folk dont need or want all that.

User adjustable maps is pointless and just gives you the ability to fuck things up that you dont understand. If you have the knowledge and ability to mess with it yourself, then you can fire up tunerpro and tweak the proper ECU maps yourself. If you just want a car that works, you get it mapped properly to match your mods by someone who knows what they're doing and then you drive it.

The ECU's boost control is already excellent, and mapped against throttle position etc.

Having meth control might be nice, but theres plenty standalone kits for that which work very well for much less than the cost of the JB4. The small number of people that require additional fuel from port injection or nitrous then sure, but its a serious minority.

[Calluhan]

I love my DTUK bodge. Best bodge I've ever done. And I've done a lot of bodges