The Never Ending Project..

[ChasDuran]

Carbon driveshafts are used for lighter rotational mass, and their ability to flex!

For higher hp applications where the metal driveshaft is prone to snap, the little bit of torsional give that carbon has while maintaining strength is perfect to counter the sudden stress of the driveshaft receiving sudden power.

Anyhow.. I haven't heard anything new from the shop yet. Guess we're still waiting for the replacement ViPEC to arrive.

[black-typem]

if it has the tensile strength to hold together under race applications as a driveshaft, im sure it could hold whatever boost chas can throw at it

carbon fibre driveshafts and carbon fibre intercooler piping are undergoing completely different stresses. the way the carbon is laid as a driveshaft, it is undergoing a twisting force, which is what makes it useful in high horsepower applications. the endlinks of the shaft are still metal. if it was used as intercooler piping, it would have a perpendicular force pushing against it. it be like pushing against a paper towel thats under tension. tensile strength isnt everything.

[love_boost]

carbon fibre driveshafts and carbon fibre intercooler piping are undergoing completely different stresses. the way the carbon is laid as a driveshaft, it is undergoing a twisting force, which is what makes it useful in high horsepower applications. the endlinks of the shaft are still metal. if it was used as intercooler piping, it would have a perpendicular force pushing against it. it be like pushing against a paper towel thats under tension. tensile strength isnt everything.

exactly what i was trying to say.
just you worded it way better than i did lol.
but if some people do it, it must work to some extent unless it is just a show queen?

[FunnyGas]

Alright.. I've decided what I want to do over the summer: Gather parts for making my engine twin turbo.
I have been interested in it for a while now, and I have an idea of what I want.

http://page9.auctions.yahoo.co.jp/jp/auction/k107623146

Get on that. Auction ends soon!

[ChasDuran]

Already have the parts selected.. going top-mount too. Thanks anyhow FunnyGas!

In other news.. Still waiting for the replacement ViPEC unit to arrive.
TSS is sending the old one back for testing as well.
Wonder if I'll have a working car by the two year mark? Sooo many gremlins..

[RyanGTS-T]

Already have the parts selected.. going top-mount too. Thanks anyhow FunnyGas!

In other news.. Still waiting for the replacement ViPEC unit to arrive.
TSS is sending the old one back for testing as well.
Wonder if I'll have a working car by the two year mark? Sooo many gremlins..

I know your ECU isn't an AEM but I know my ECU has a known problem with the cam angle sensor. It causes the same symptoms that you were describing, wont start when hot, idles funny.

Basically the base map on the ECU is set to read the "crank falling edge" by default. Usually this is ok, however is was causing the ECU to see different s-tooth values from the Hitachi CAS. So the fix was to simply switch the settings to read the "crank rising edge" instead of "crank falling edge"

The ECU settings only need to be changed when experiencing issues such as what you where explaining. The stock AEM settings on the ECU seem to be fine with the Mitsubishi CAS but vary from Hitachi CAS (some Hitachi's are ok, some need the settings changed from Falling to Rising).

Not sure if it's gonna help but for future reference so you can sound smart when talking to your tuner. ;-)

[ChasDuran]

I'm not sure if they have attempted that solution.. so I'll direct them to this thread again to be sure. Thanks!

[Skym]

That's what I posted a few times in this thread, but Ryan has explained it better than me.

[RyanGTS-T]

That's what I posted a few times in this thread, but Ryan has explained it better than me.

You sure? All I remeber are you posting alot of links of video's on youtube, LoL.

No I was just reading into my manual for my ECU and came across it on the AEM forums.

[Skym]

Yeah, too many videoclips. ChasDuran, do you want me to remove them from your thread??

Yep, mentioned more than once. Couldn't 100% remember what they said. But you have cleared it up, thanks.

AEM found a fix to this type of problem with their ECU. From what I can remember, they mention something about rising, falling edge settings for CAS and changing the wheels on CAS. Also talk about weak grounds being a problem, as the ECU is more sensitive to weak grounds than factory ECU.

Yeap. They are Mitsubishi or Hitachi.

As I have mentioned before in this thread, the AEM ECU didn't like running with certain CAS. From what I can remember AEM made some replacement discs for CAS, settings (rising or falling edge settings) to use, so that it works without problems. Also from what I can remember the common problem was missing with certain CAS's, like what he's experiencing. One of the other problems was that the AEM ECU was sensitive to bad earths, where the factory ECU wasn't.

[ChasDuran]

Yeah.. they must have checked it by now. They said they checked everything they could before resorting to replacing the ecu.

[ChasDuran]

Well.. Looks like there is no e.t.a. on the replacement ecu for the time being. They have to wait for it to come from the factory.

[RyanGTS-T]

Well.. Looks like there is no e.t.a. on the replacement ecu for the time being. They have to wait for it to come from the factory.

LoL, "What do you mean it was discontinued?" j/k


I hate those waits. I just waited for intake pluming to be deliverd from the factory. It finally arrived yesterday.

[Skym]

I gather the reason why you are waiting, is ViPEC ECU is essentially a G4 Link ECU, but rebranded -

http://www.ziptied.com/forums/index.php?topic=12913.105

So it would go from distributor to ViPEC, then to Link. It kind of explains why the ViPEC tuning software looks the same as Link tuning software. Also explains the replacement circuit board for stock ECU casing, as that is what Link did with the older generation ECU's.

Link G4 -

http://www.linkecu.com/products/engine-management-ecus/g4-xtreme

[ChasDuran]

Sweet Jesus... I was just going over old files.. It's been TWENTY(20) Months since this project started! :shock: :shock: :shock:

Still no end in sight.. Still aren't sure why it doesn't run. Still waiting..