Fueling questions - M62 on LE5

[rhit_rs]

Well, we've made a decent amount of progress in the last couple weeks. A big shipment of silicone and aluminum tubing showed up last week and Dad has been going at it with the tig welder. He's also working on hooking up the wideband. The LM-1 will let you simulate a narrow-band O2 for the stock ecu while you datalog the WB signal with EFILive. So, we're going to wire that in and start tuning the stock engine a little bit to get some practice with the software. The intercooler pump and radiator are next on the to do list.

I've been working on an engine model of the LE5 in a piece of software called Wave by Ricardo. It's a high end piece of software that many of the major OEMs use to reduce the amount of actual dyno testing they have to do. Once you have a good model, you can change cams, compression ratio, intake, exhaust, etc and see the changes it makes in torque, power, cylinder pressure, exhaust back pressure, bsfc, etc, etc. The main reason I'm doing it (other than I only have the software for a few more months before I graduate) is to see the effects of cam phasing on a supercharged version. Once I get the model dialed in, I'm going to mess with the cam centerlines to find out how changing the phase will affect power on a supercharged engine. Hopefully it will give us a good idea of what to do with the VVT when we start tuning on the actual engine.

More Pics!

Intake for M62:


MAF:




The first track day they've signed up for is April 18th & 19th, so we'll be pushing it to get done by then, but it should be doable.

[Boil]

Originally Posted by rhit_rs …the effects of cam phasing on a supercharged version. Once I get the model dialed in, I'm going to mess with the cam centerlines to find out how changing the phase will affect power on a supercharged engine. Hopefully it will give us a good idea of what to do with the VVT…

This has my interest…!!!

[Mileage]

Progress report: As noted in another thread, I flow tested the LSJ intake. Looks like it will do what we want. Found a heat exchanger that fits nicely in front of the radiator but requires fabricating a new shroud. Added a WB O2 sensor in the original sensor location by using the LM-1 to simulate the NB signal to the ECM. No check engine lights!!!

Does anyone know if the cam position sensors are "twist" sensitive? If I could turn the intake sensor about 90 degrees it would make life easier. They are round with an o-ring seal so it is physically possible but I do not know if it will effect the signal. Now the retaining bolt through the tab orients them. Thanks for any help.

[rhit_rs]

More progress pics:

Fitting the throttle body behind the engine:


Routing of intake tube behind the engine and over the exhaust:




Lower support for LSJ intake manifold (as mocked up on the LSJ takeout):

According to Mileage, new motor mounts are surprisingly cheap.

The IC pump is mounted along with a heat exchanger in front of the radiator. The WB is working well and no DTC's thus far with the LM-1 simulating the stock narrow band 02 sensor. We're going to make more adjustments to the stock tune to gain experience with EFILive (possibly switch over to the 60 lb/hr injectors and eliminate the torque limiters). I'll be home in a couple of weeks and the real fun will begin!

[scdyne]

The Cam Position Sensors are the standard hall effect sensor and can be clocked in any direction. As long as it doesn't come out of the hole (you'll have to secure it very well) it will function the same.

Also 42# Ford "Blue Giant" injectors will be easier to tune and under $200 shipped for a set of 4. Most tunes use these injectors from what I understand.

[rhit_rs]

Okay, we'll try to rotate the sensor out of the way. We already have the 60's, so we'll stick with them unless we can't get them to work well. We might try using them a little before we swap to the blower setup to get the hang of tuning with them. Digging around in EFILive shows there's only a few tables to adjust to change injector settings, right? (B1201, B4001, B1203, B1204, more?) Anyway, we're definitely going to need them later.

[Critterman]

DDM Stage III is running 60#'s

[rhit_rs]

Big updates coming soon. It'll probably be in a new thread. Here's a teaser: 8.5 lbs of boost after the intercooler.

[zzzybil]

bump for updates.....
patience yeahhhhhhhhhhhh rite !

..... more progress yet ?

did i miss something ? why start a new thread - this ones not finish

[rhit_rs]

We've made lots of progress.

LSJ M62 and Intake Manifold on LE5 in a Solstice

It has now been to two track days with no problems. Lately we've been doing a bunch of tuning with EFILive. I'll be home to do more work on it in a couple weeks. The next project is to re-route the A/C lines so that the driver has it on the way to the track.

Josh