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M35 Mod "path"

jasevr4

By jasevr4,
in Four Door Family & Wagoneers

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iamhe77 Grand Master

iamhe77

Posted
Posted

What do you think you'd need to make over 250 safe on 98? V Pro and cable throttle?

Why would you need a cable throttle?

A "safe" 250 can be done on 98 with highflow, intake, intercooler, exhaust, injectors, pump and a eManage Ultimate

scotty nm35 Grand Master

scotty nm35

Posted
Posted

I don't think the emanage is reliable above 250, the timing doesn't hold steady at all with the stock ecu still in charge causing pinking occasionally. With ethanol it won't obviously, that's why I run it now.

iamhe77 Grand Master

iamhe77

Posted
Posted

He was because he wanted better response and the eManage can't get around the ecu f**king with the throttle.

Hence the thought to remove the FBW throttle body, leave the ECU in limp and control it all with the eManage.

To much of a f**k around, hence the change to the Fcon V-Pro.

At least, that's my understanding (or lack thereof)

iamhe77 Grand Master

iamhe77

Posted
Posted

I don't think the emanage is reliable above 250, the timing doesn't hold steady at all with the stock ecu still in charge causing pinking occasionally. With ethanol it won't obviously, that's why I run it now.

Interesting.

Has Craig found this to be an issue?

Jetwreck Grand Master

Jetwreck

Posted
Posted (edited)

Of course, but his went rich also.

There is a noticeable timing change on high boost at different times without additives.......advance/retard under hard acceleration ........but then again I still have to go back on the dyno as I have changed a couple of things since the tune.

as far as being safe......motor doesn't sound or feel stressed so yeh it's safe....but I only run 15-16psi most of the time!.....If I am running 20PSI I now run Octane boost in it and all seems good.

P.S. And yes my car does run rich!

Edited by Jetwreck
scotty nm35 Grand Master

scotty nm35

Posted
Posted

Advanced timing is ok if its run rich, that's how the Japanese tunes run most of the time. As long as theres no knock you're fine. The hassle is you need to run a buffer of a few degrees at least as the stock ecu changes constantly. That's why I'm going standalone.

ArdentEagle Contributor

ArdentEagle

Posted
Posted (edited)

I'm looking at getting my exhaust done next week. Is it advisable to get the suction pipe done at the same time or should I wait until I have the Fcon IS installed?

As you can tell I know nothing about mechanics.

Edited by ArdentEagle
Commsman Veteran

Commsman

Posted
Posted

I'm looking at getting my exhaust done next week. Is it advisable to get the suction pipe done at the same time or should I wait until I have the Fcon IS installed?

As you can tell I know nothing about mechanics.

Wait. Without some method of tuning, it will run like crap (in a bad way, lol).

iamhe77 Grand Master

iamhe77

Posted
Posted

Wait. Without some method of tuning, it will run like crap (in a bad way, lol).

Only if you floor it a lot.

I've been running the suction pipe with stock ecu/injectors/pump for... erm... a while.

Unless I put my foot to the floor, it runs very nicely.

1/2 to 2/3 throttle is fine on my car

Commsman Veteran

Commsman

Posted
Posted

Only if you floor it a lot.

I've been running the suction pipe with stock ecu/injectors/pump for... erm... a while.

Unless I put my foot to the floor, it runs very nicely.

1/2 to 2/3 throttle is fine on my car

Impressive. That's different to my (short) experience so far. Mine only ran "ok" for the first drive on a cool night, with very minor AFM adjustments. Since then (in warmer daytime running) I've had to baby it whilst slowly making changes to the tune. Just haven't had enough time to get on top of it as yet.

Commsman Veteran

Commsman

Posted
Posted

Going by my almost useless "memory", your AFM is on the verge of a bend though, yes? Could this be the issue?

The air is more dense on the outside of the bend and gets more so the faster it flows, it makes it very hard to tune around, even with an emanage...

It certainly could be an issue. If it turns out to be "untunable", I will put the standard one back on. Other than an extra little hole in the airbox (which is easily patched) I made sure I didn't mod any other OEM part.

And if it does turn out to be untunable, I might be tempted to ask "why didn't someone mention this before" lol.

Mmmm, if I give it some more thought I might be able to block off the AFM hole & move the little housing thingy down the intake to a straighter bit.

Anyway, I have about 200 voltage load points I can set (either up or down) so I reckon I have a fair to reasonble shot at getting it right. It could just take a whole lot of time....

Commsman Veteran

Commsman

Posted
Posted

I did warn you. :)

Haha, I don't remember. But I'm not sunk, just some work to do to tune it. Anyway, nothings lost. All this stuff is just a bit of fun (challenge?) for me. Works / doesn't work - either way no big deal :)

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