[F80Boost]

Title says it all.

I have JB4,N55, 2016 435i.

Previoulsy on map 5, no EWG wiring harness- 12psi

Added the BMS add on EWG wiring harness, map 5- 17psi


Im on a E85 mix ( 2.5 gallons / rest 93 octane), no dp, so not sure running 16-17psi is safe for car ?

But for informational purposes, all equal, just by adding the EWG wiring, raises boost by 5psi on map 5, at least.

[Sheharyar_rr]

Get the downpipe... your car will thank you

[F80Boost]

Originally Posted by Sheharyar_rr

Get the downpipe... your car will thank you

i want the damn dp soo bad......

i literally bought this car for its "tunability".......



I'm basically set now:

1. Got the JB4 with FF wires.
2. Added on the EWG wiring, jump in boost (5psi) totaling 17psi.
3. Added 3 gallons of E85 mixed with 93.
4. only thing left is dp...............


couple questions on the dp :

1. I'm sure the catless dp will yield best results etc...
2. If I go with a catted dp, will there still be back pressure on turbo, possibly causing engine / turbo reliability at 16-17 psi ?
3. will the gains of a catted dp be worth cost / install of it ?
4. will boost increase more than the 17psi i have now, by adding the dp, or will it remain at 17 psi ?



only issue im having with dp is the catless one and fuel smell. i hate it!!!

do you think the catted ones will yield good gains etc ?

[Luminous]

Originally Posted by F80Boost

i want the damn dp soo bad......

i literally bought this car for its "tunability".......



I'm basically set now:

1. Got the JB4 with FF wires.
2. Added on the EWG wiring, jump in boost (5psi) totaling 17psi.
3. Added 3 gallons of E85 mixed with 93.
4. only thing left is dp...............


couple questions on the dp :

1. I'm sure the catless dp will yield best results etc...
2. If I go with a catted dp, will there still be back pressure on turbo, possibly causing engine / turbo reliability at 16-17 psi ?
3. will the gains of a catted dp be worth cost / install of it ?
4. will boost increase more than the 17psi i have now, by adding the dp, or will it remain at 17 psi ?



only issue im having with dp is the catless one and fuel smell. i hate it!!!

do you think the catted ones will yield good gains etc ?

I had a sport cat dp and it was great, zero smell and very noticeable increase in power and sound. If you're worried about smell and are sticking with the stock turbo you'd be fine with a catted dp. It will not increase boost but will significantly reduce back pressure. Yes it's worth the cost.

[Siren05]

Kittyless Ftw

[Alano_Mpower]

how do i install the harness?? is there a guide hwo to do it ?? my car is 2016 435ix??...cant find any...

[AllEyesOnMe]

Going from 12 psi to 17, how big of a difference did you feel? I heard that 1 psi is around 10whp? That's another 50whp, which is very scary...

[F80Boost]

Originally Posted by AllEyesOnMe

Going from 12 psi to 17, how big of a difference did you feel? I heard that 1 psi is around 10whp? That's another 50whp, which is very scary...

HUGE difference.

Thing is a monster now.

[zinner]

I think the biggest concern with the cat in these situations is the DME isn't able to anticipate the CAT temps because it's getting falsified data from the JB4 and as a result it's more susceptible to melting. I think that is one of the big pluses to the Dinan tunes.

[G30 B58]

Originally Posted by Alano_Mpower

how do i install the harness?? is there a guide hwo to do it ?? my car is 2016 435ix??...cant find any...

http://www.n54tech.com/forums/showpo...&postcount=539

[cryptocar]

Originally Posted by zinner

I think the biggest concern with the cat in these situations is the DME isn't able to anticipate the CAT temps because it's getting falsified data from the JB4 and as a result it's more susceptible to melting. I think that is one of the big pluses to the Dinan tunes.

Not sure where you get your information but
1 Dinan does not recommend nor test their products on anything but the stock cat.
2 there's only been a few cases of people running higher boost levels (25-35psi) with upgraded turbos who've melted their sportcat cores. I haven't heard of anyone running stock turbo and melting their sport cat.
The stock turbo really maxes out at ~18psi and without s proper flash to accompany it, it won't be able to hold even 16psi to redline.

[F80Boost]

Originally Posted by cryptocar

Not sure where you get your information but
1 Dinan does not recommend nor test their products on anything but the stock cat.
2 there's only been a few cases of people running higher boost levels (25-35psi) with upgraded turbos who've melted their sportcat cores. I haven't heard of anyone running stock turbo and melting their sport cat.
The stock turbo really maxes out at ~18psi and without s proper flash to accompany it, it won't be able to hold even 16psi to redline.

True dat

[AllEyesOnMe]

Originally Posted by F80Boost

HUGE difference.

Thing is a monster now.

Stock charge pipes still with that 17 psi?

I'm praying for you that the stock cp won't break as you've really got me thinking about adding ewg wires.. Only diff I have between our setups is the addition of a dp.

[Jeff@TopGearSolutions]

It's only a matter time with a CP. It's not if they will break, it's when...

EGT's do become a concern with elevated boost levels. This primarily has to do with retaining the stock cat.

Running E85 does reduce EGT temps though but one should consider downpipes, not only from a performance stand point but to reduce EGT which will raise your knock ceiling and other benefits.

[zinner]

Originally Posted by cryptocar

Not sure where you get your information but
1 Dinan does not recommend nor test their products on anything but the stock cat.
2 there's only been a few cases of people running higher boost levels (25-35psi) with upgraded turbos who've melted their sportcat cores. I haven't heard of anyone running stock turbo and melting their sport cat.
The stock turbo really maxes out at ~18psi and without s proper flash to accompany it, it won't be able to hold even 16psi to redline.

I get my information from several years of tuning and building boosted cars, for myself nothing professionally.

Catalyst Overtemp protection is pretty standard OEM efi solutions. You can scan for it being enabled with proper scan tools. I assume that is why BMS suggestions you run no cat with their MAP 2+ tunes.

Crypto I get the feeling you probably already know this stuff and I know you have an axe to grind but I am just trying to add my opinion to the mix so please don't take it personally. I always read and enjoy your opinions.

1) That is exactly the point of my post, Dinan tunes to retain the ability to keep the stock emissions controls. This can be a huge deal to people who don't want to violate the law.

2) I am happy to allow you that point, but back to my main point sport cat are still illegal in some jurisdictions, I would say at best it's a grey area since cars until 80k should run the factory emissions controls. Plus you could save 600-900 bux.

I certainly allow you that there are performance to gain, with no cat or a sport cat and I can even say I have done exactly that on previous cars. I don't own any dinan parts and I use JB4 and have most of parts of a Pure Stage 2 build, follow in your foot steps.

[Alano_Mpower]

Originally Posted by F32 N55

http://www.n54tech.com/forums/showpo...&postcount=539

yeah but were do i find the ewg??

i mean were do i connect, i want to know were and a picture would be fine

[platty]

Originally Posted by Alano_Mpower

yeah but were do i find the ewg??

i mean were do i connect, i want to know were and a picture would be fine

Seriously speaking... if you can't figure this out, don't do it or take it to a shop.

[Alano_Mpower]

Originally Posted by platty

Seriously speaking... if you can't figure this out, don't do it or take it to a shop.

i might do that :/

[Alano_Mpower]

Originally Posted by platty

Seriously speaking... if you can't figure this out, don't do it or take it to a shop.

is it that hard to show on a picture maybe i was to rude maybe this will help THIS IS A FORUM WERE U ASK FOR HELP NOT TAKE IT TO THE SHOP.......

[cryptocar]

Originally Posted by Alano_Mpower

is it that hard to show on a picture maybe i was to rude maybe this will help THIS IS A FORUM WERE U ASK FOR HELP NOT TAKE IT TO THE SHOP.......

The OP here posted has a very recent post himself about this exact question and the thread ran several pages long and the point was eventually beaten to death and he figured it out as you can see from the title of this post here.

There is link to the EWG wiring harness post by terry on the JB4 FSERIES sticky post. Has all the info you need or go back over F80Boost 's previous posts.

This is a forum for discussion, but it isn't a chatroom. There are some people who post all day long answering simple ?s and repeating the same information over and over again becomes tiresome. Sort of defeats the purpose of having the forum retain a textual archive of all our discussions. This is why people often tell people to "read the thread" or "search button".

Also think about it If you throw up a question you're only going to get s couple random answers. If you search for s previously asked question you may find 500 pages of discussion on that topic. It's generally better to use larger sample sizes from these large threads. Often times people can be misled by just getting one or 2 conflicting or incorrect responses to their questions.

[eluded]

Originally Posted by zinner

2) I am happy to allow you that point, but back to my main point sport cat are still illegal in some jurisdictions, I would say at best it's a grey area since cars until 80k should run the factory emissions controls. Plus you could save 600-900 bux

Huh? :

[Bee Pee]

Originally Posted by cryptocar

There are some people who post all day long answering simple ?s and repeating the same information over and over again becomes tiresome.

- I'm guilty of doing this....

Originally Posted by cryptocar

This is why people often tell people to "read the thread" or "search button".

- perhaps I need to do this more ??

Originally Posted by cryptocar

Also think about it If you throw up a question you're only going to get s couple random answers........ Often times people can be misled by just getting one or 2 conflicting or incorrect responses to their questions.

Good advice and a very fair point - opinions are like a$$holes - everybody has one.....