[yoandry]

Originally Posted by JaredG_F30

BMS (the maker of JB4) is developing free BEF maps via MHD for their JB4 customers. This is an attempt by BMS to stay relative to the tuning game. Since BM3 and MHD have come out JB4 sales have taken a hit. BMS is pushing a BEF + JB4 solution as superior to BEF only, thus offering the flash for free but you still have to buy the hardware.

Correct, so why not just try as the hardware will be just the $249 for MHD license and $40 for the K+Dcan Cable if you dont have it already.
I cannot just go and drop $1000 for bm3 then still need to use jb4 in the future for meth controller if I get the meth kit.

[JaredG_F30]

If I already had JB4 as you do I would do exactly that. I never had JB4 so just went straight to BM3 and have been extremely happy with it. It's good to have MHD in the game though. Competition is a good thing.

Originally Posted by yoandry

Correct, so why not just try as the hardware will be just the $249 for MHD license and $40 for the K+Dcan Cable if you dont have it already.
I cannot just go and drop $1000 for bm3 then still need to use jb4 in the future for meth controller if I get the meth kit.

[yoandry]

Originally Posted by zinner

Running any ethanol over whats in regular gas is just going to lose power. 93 and about 16 psi is gonna be the stock fuel system limit (hpfp).

Edit: read you are using JB4: You really need a flash tune to lower the AFR. JB4 is gonna leave you at the lean stock tune and that is when stuff starts melting.

About this. I got MHD bef + jb4 +93 and car is running great on 14psi.

Before raise a bit to 15psi in the midrange and 16psi in the higher rpms, I want to know what's the lower AFR can go too rich?

I'm seeing around 12 and 11 under load but it goes lower than that if there is boost spike and shifting which boost go higher also, then as AFR is running to rich, FP_h crash with 8-11 values.

[F30_SixSpeed]

Originally Posted by yoandry

About this. I got MHD bef + jb4 +93 and car is running great on 14psi.

Before raise a bit to 15psi in the midrange and 16psi in the higher rpms, I want to know what's the lower AFR can go too rich?

I'm seeing around 12 and 11 under load but it goes lower than that if there is boost spike and shifting which boost go higher also, then as AFR is running to rich, FP_h crash with 8-11 values.

Most important is AFR under load... good range for making power and safe is low-mid 12s WOT. 11s is getting a little richer for these cars (well at least its safe lol) but you are leaving some power on the table and fuelpump is working harder pushing more fuel. See if they can Lean it up a bit.

[lens]

Originally Posted by yoandry

About this. I got MHD bef + jb4 +93 and car is running great on 14psi.

Before raise a bit to 15psi in the midrange and 16psi in the higher rpms, I want to know what's the lower AFR can go too rich?

I'm seeing around 12 and 11 under load but it goes lower than that if there is boost spike and shifting which boost go higher also, then as AFR is running to rich, FP_h crash with 8-11 values.

My map ran AFR around mid 12s, and exactly 12 by redline. HPFP looked great, but the map before the revision went around 11.5-11.8 AFR and the pump crashed. It seems 12 AFR is the max you can run on pump 93 or 91

[yoandry]

Originally Posted by chaungo

My map ran AFR around mid 12s, and exactly 12 by redline. HPFP looked great, but the map before the revision went around 11.5-11.8 AFR and the pump crashed. It seems 12 AFR is the max you can run on pump 93 or 91

So, flash tuner can set AFR values or it depends on something else? What's your psi target?

[lens]

Originally Posted by yoandry

So, flash tuner can set AFR values or it depends on something else? What's your psi target?

Yeah, flash can set AFR, on 91, it targets 15-15.5psi, and 93/94, it targets 16-17psi, though it goes to 18psi mid range and tapers to 16psi up top.

[yoandry]

Originally Posted by chaungo

Yeah, flash can set AFR, on 91, it targets 15-15.5psi, and 93/94, it targets 16-17psi, though it goes to 18psi mid range and tapers to 16psi up top.

Here is how everything looks @14psi

https://datazap.me/u/yoef30/befjb4?l...4-5-8-10-18-20

[lens]

Originally Posted by yoandry

Here is how everything looks @14psi

https://datazap.me/u/yoef30/befjb4?l...4-5-8-10-18-20

Your IGN looks perfect, you could probably increase to 16psi and relog, it's holding around 10 pretty well.

[yoandry]

Originally Posted by chaungo

Your IGN looks perfect, you could probably increase to 16psi and relog, it's holding around 10 pretty well.

https://datazap.me/u/yoef30/befjb4-1...4-5-8-10-18-20


This is on 15psi. Tried 16 and fuel pump crash at redline, throwing drivertrain malfunction, fuel pump pressure lower than expected code on jb4.
As pwg boost is a wild horse15 will be fine as it goes over that sometime.

[lens]

Originally Posted by yoandry

https://datazap.me/u/yoef30/befjb4-1...4-5-8-10-18-20


This is on 15psi. Tried 16 and fuel pump crash at redline, throwing drivertrain malfunction, fuel pump pressure lower than expected code on jb4.
As pwg boost is a wild horse15 will be fine as it goes over that sometime.

If you are on 93 oct, I would dump JB4 and get BM3 instead or just run full flash. Im able to easily run 16psi on 93oct without fuel pump crashing. It only starts crashing if I run more than 16psi up top.

IMO, you would highly benefit from BM3 flash over MHD as BM3 has access to tons of more tables than MHD does. They even found out how to control PWG boost right now and smooth it out. MHD is in beta and you are not getting the necessary flash tables that you need to get the full potential out of 93 oct.

[yoandry]

Originally Posted by chaungo

If you are on 93 oct, I would dump JB4 and get BM3 instead or just run full flash. Im able to easily run 16psi on 93oct without fuel pump crashing. It only starts crashing if I run more than 16psi up top.

IMO, you would highly benefit from BM3 flash over MHD as BM3 has access to tons of more tables than MHD does. They even found out how to control PWG boost right now and smooth it out. MHD is in beta and you are not getting the necessary flash tables that you need to get the full potential out of 93 oct.

I'll be getting meth on the future so I need jb4 for it. Bm3 sound good but I cant spend around 1k to get 1psi more.

[ceedawg]

Consider the Active Autowerkes flash as well if I were you.

[Mike@N54Tuning.com]

Originally Posted by yoandry

I'll be getting meth on the future so I need jb4 for it. Bm3 sound good but I cant spend around 1k to get 1psi more.

If planning to run meth the JB4 is really the beat option as it can change boost based on meth flow dynamically.

Mike

[yoandry]

I may get meth sooner than expected as I got my $775 turbo core back

Now, with meth do I still need to upgrade the lpfp if I'm just going to use 93 and stay around 18-20psi? Not going to go over 20psi and maxout something. Just want the extra fuel help for the hpfp on 50/50 mix i guess.

Meth is around $600 and PI starts @ $1200 + $500 for lpfp. I dont think is worth it as I dont want to go over 20psi.

[yoandry]

Guys, PI or Meth

This fuel-it DIY PI isn't that expensive than the regular one. Will this PI kit for $1225 be a better option than BMS meth kit @ $625 in a hot state like Florida? Which one will cool better, Ethanol or Methanol?
I have e85 access but what about if have to use just 93 in a trip?
I would need also stage 2 lpfp right? $299
I'll be running either 2 options with MHD bef + jb4.

[ronanz]

Originally Posted by yoandry

Guys, PI or Meth

This fuel-it DIY PI isn't that expensive than the regular one. Will this PI kit for $1225 be a better option than BMS meth kit @ $625 in a hot state like Florida? Which one will cool better Ethanol or Methanol.
I have e85 access but what about if have to use just 93 in a trip?
I would need also stage 2 lpfp right? $299
I'll be running either 2 options with MHD bef + jb4.

THIS EOS Intake Manifold is a cool option as well...

.

[ceedawg]

Originally Posted by yoandry

Guys, PI or Meth

This fuel-it DIY PI isn't that expensive than the regular one. Will this PI kit for $1225 be a better option than BMS meth kit @ $625 in a hot state like Florida? Which one will cool better Ethanol or Methanol.
I have e85 access but what about if have to use just 93 in a trip?

Cool better?

Ethanol Fuel will burn better ,cleaner,more HP and timing advance with out using meth. And imop more reliable like using race fuel but on the cheap.Meth will be used to cool the charge so you can run advance timing and boost. Id do port injection and E85 by far over meth with the proper OTS map.

I like like pure E85 better especially because its more knock resistant if you do not go too nuts with the timing..

[yoandry]

Originally Posted by ronanz

THIS EOS Intake Manifold is a cool option as well...

.

Pass, no need for another option which seem to be the same price dont know if works with jb4.

Originally Posted by ceedawg

Cool better?

Ethanol Fuel will burn better ,cleaner,more HP and timing advance with out using meth. And imop more reliable like using race fuel but on the cheap.Meth will be used to cool the charge so you can run advance timing and boost. Id do port injection and E85 by far over meth with the proper OTS map.

I like like pure E85 better especially because its more knock resistant if you do not go too nuts with the timing..

Yes, better cooling effect as Im in a hot area. What about if I have to pump just 93 when no e85 is around?

[ceedawg]

Originally Posted by yoandry

Pass, no need for another option which seem to be the same price dont know if works with jb4.





Yes, better cooling effect as Im in a hot area. What about if I have to pump just 93 when no e85 is around?

Meth or racing fuel in that case

[hardparker]

The EOS PI manifold is a pretty good deal for a trick manifold with integrated PI. I just bought the EOS PI spacer kit with JB4 controller and 52 lb injectors and added an E85 sensor on the supply line to the motor. Works well with my BM3/JB4 stack. The PI setup was less than $1K, since it's on sale. You can do a DIY Walbro LPFP for under $150.

[yoandry]

Originally Posted by hardparker

The EOS PI manifold is a pretty good deal for a trick manifold with integrated PI. I just bought the EOS PI spacer kit with JB4 controller and 52 lb injectors and added an E85 sensor on the supply line to the motor. Works well with my BM3/JB4 stack. The PI setup was less than $1K, since it's on sale. You can do a DIY Walbro LPFP for under $150.

Their website shows $1520 with no controller.

https://www.eospeed.com/collections/...=1822173855753

The only problem is that when time comes to ask Terry/Steve for help, I wont get as much support than fuel it. So Im actually trying to debate first between PI vs BMS meth. Which one will be better for a long run as a DD.
Is it worth it the double price on PI from meth?