This whole tuning thing is really stressing me out haha. especially since we don't have a solenoid to limit boost. Even with the stock pulley, the tvs will be mashing air

#noobstress

 

lol thank you for the compliment, but this is my first balt, so im in uncharted boost territory's here with hptuners as well. Only past experience ive had with HPT has been on all NA cars. Previous boosted cars ran on other systems. If I find a limit on the E67 its going to be new to me so only time will tell. The only reason we ran rise rate regulators in the past higher then 1:1 ratios was for extra fueling, ive never ran into issues with back pressure on a fuel injector. Remember that the intake valve is open and air is flowing into the chamber when the injector is firing, so its not back pressuring the injector much at all, very different processes compared to the pressure that direct injection injectors are under.

That being said, for the setup your considering, I would run their BRFS kit for sure. It's a good investment, its going to give you the control of the fuel system your looking for with the E85, boost, and nitrous all in the mix. As far as what they are listing for this stuff....

"This kit lowers fuel pressure at idle to cure large injector idle issues and raises fuel pressure under boost to help fuel high HP applications."

Good injectors, like injector dynamics will have no problems running low pulse widths at idle even over 1000cc, that is why i stress the importance of a good quality injector over some of the **** ZZP sells, like the deka or lucas injectors (same goes for RC). The ID's will actually be good up over 100psi of fuel pressure, so long as the pump can support it, so you will have plenty of overhead as far as fueling goes.

I assume that the compensation for fuel at 17 and 12psi they are referring to is the ECU controlled fuel pressure rise?

 

It's not as complicated as it sounds trust me, the E67 ecu in the 2.4's just has a load more features available to adjust that makes it confusing. lol

Where ya located in michigan, maybe i can see if my buddy would be interested in giving you a hand tuning.

 

Hook up the bottom hose on the bypass valve and it will limit boost for you to test **** out.

 

The regulator I have will do that as well. that's what I was referring to in my post. You hook up the "reference port" to the manifold. When it sees vacuum, it reduces fuel pressure by the same amount of "negative psi" (obviously not the correct unit lol), and when it sees boost, it raises fuel pressure by the same amount of psi. So if the manifold sees 24psi of boost, the fuel pressure will also raise 24psi. all I need to do is hook up a single vacuum line.

and that makes sense that it stops raising the fuel pressure at 17 and 12psi on the 2 models.

I'm not tuning it myself. I am currently talking to arm about helping me tune. I just want to be involved so I can start learning

without the solenoid limiting the flow to the bypass, the boost will open the bypass 100%

 

but for initial testing It will hold it at 5 psi or so or whatever the TVS bypass is set to and then you can pull it off when you are ready to unleash the beast

 

The valve being open will really make that much boost?

 

yes lol

 

I wonder what the TVS would do with it open. It would be cool to wire a switch in to open and close a line to the bottom of the bypass and have your own "boost controller"

 

you technically could with just an inline solenoid

 

Do you want to compare basemap tunes 07blackg5? Pm me your email i can send you my HPT file.

 

I own hpt, but I haven't used it yet. I am pretty much at ground zero in terms of tune right not


Im going to go through a checklist of what I have packed up for the machine shop trip tomorrow. Driving about 3 hours to Indiana, so i would like to not forget anything and have to ship parts later.

Only having the bottom end honed, assembly balanced, and assembled. Am I forgetting anything? the flywheel and clutch are coming straight from spec and are balanced as an assembly.

-upper block
-girdle
-oil pan
-main bearings
-rod bearings
-crankshaft
-rods
-pistons/pins/clips/rings
-all the galley plugs
-outer girdle bolts
-old main girdle bolts for torquing/tolerance checking
-new main girdle bolts for final assembly
-stock headbolts for use with torque plate for honing
-main seals (will only need the one)

the just in case parts. maybe they want them for balancing but should be negligible:
-flywheel bolts
-both chain sprockets
-ati balancer (says not to alter/balance it)


thanks


If it fits, it ships

 

well if you want pointers on how to set it up so you can get it running after its all in, let me know

 

thanks. and notice anything i'm missing lol?

 

thats 10x more **** then i ever bring my machine shop lmao

 

lol well they are assembling it, so I pretty much need everything

 

lucky, my machine shop refuses to assemble anything because too many clowns blow their **** up and then bring it back and say its his fault. I bring him the block with the bolts for the girdle and mains already installed, the crank separately, which is zero balanced independently of the rotating assembly and if the pistons and rods are new, those with the bearings for weight balancing of the rotating assembly. All the block ever gets is cleaned, honed and decked, and sometimes bored if its going oversized. I actually have to drop my other cylinder head off this week for cleaning.

 

I was talking to arm a week or two ago and didn't realize he was so close. So I asked his recommendation, and he suggested this shop. It's 3 hours from me, but they have done a few ecos and have a good relationship with arm, so it's worth the short drive.

 

Dropped the bottom end off today. It's official.

My parts pile looks weak now haha

 

Do any of you guys mind sending me the oem/stock tune file?

Like I said, I have never actually used HPT, so I just want to start to familiarize myself with the general navigation/usage software.

Thanks in advance

 

pm me your email address and the year of the car

 

nice build i will probly be checking back on this thread ! i blew mine and the piston looks identical to yours but i was k04 turbo @18psi

 

Ordered the Mercedes pump and pigtails. The first warm day, I'm pulling the dash out of the car

 

Are you the one I bought my kit from? lol

 

Can anyone verify that the pre cat o2 sensor has a male plug, and the post cat sensor has a female plug.

So on the harness the pre has male, and the post has female