M35 Cable Throttle

[zei20l]

im not sure what profile is running in its 'off' state. if youve lost bottom end, then yeah i guess the failsafe mode is the high lift

[32TAXI]

Varible timing is usually on at low rpm and turned off at high rpm.

My old S14 used vtc control via microtech rpm function and a relay to oppose switching (on = off/off = on)

[zei20l]

thats what the emanage does also, except you can set different on/off points depending if engine speed is increasing, or decreasing.

[scotty nm35]

thats what the emanage does also, except you can set different on/off points depending if engine speed is increasing, or decreasing.

Only the V-manage can adjust the cams, but the original ecu cam map is good, and working again.

Dont ask me how, Cihan waved his magic wand and its all better. So much midrange the lock up clutches arent able to lock unless i back off to help them.

[zei20l]

i like when magic fixes stuff

good work. manual gearbox soon??

[scotty nm35]

I want to get the lockup clutch line pressure bumped up if possible, then manualise it. If that doesnt work, r34 gtr box or similar will be shoved in. No cash for that until tax time ay Craig.

Still locks fine if I back off the throttle at changes, just too much for the poor trans to handle. 2 ton car with 3 people in it, full tank and a boot full of crap doing steep uphill power runs. I overheated the radiator probably due to the high trans fluid temps. Lucky I have the Mishimoto to go in.

[iamhe77]

I want to get the lockup clutch line pressure bumped up if possible, then manualise it. If that doesnt work, r34 gtr box or similar will be shoved in. No cash for that until tax time ay Craig.

Still locks fine if I back off the throttle at changes, just too much for the poor trans to handle. 2 ton car with 3 people in it, full tank and a boot full of crap doing steep uphill power runs. I overheated the radiator probably due to the high trans fluid temps. Lucky I have the Mishimoto to go in.

*shudders*

Will help, just let me know when.

[andynogo]

This is probably a silly question and maybe not so relevant in this case with so many mods... but could the original pedal assembly/throttle body still be kept hooked up alongside the cable operated one to fool the computer into thinking it's all as normal? The tps would still work as if it was in the induction path.....

Or would it cause too many conflicts for the ecu and go into limp?

[scotty nm35]

Anything is possible, the factory ecu would add fuel gradually as the elec throttle opened, but the cable opens instantly so there is a very lean area. I am trying to get the Emanage to run the whole show if possible as that will give a much better outcome, no fighting the ecu for control.

It looks like im at the limit of the gearbox anyway so no more power, I just want the low response. I thought cable throttle would fix that but it looks like the cams retard till 3k revs too.

[andynogo]

Anything is possible, the factory ecu would add fuel gradually as the elec throttle opened, but the cable opens instantly so there is a very lean area. I am trying to get the Emanage to run the whole show if possible as that will give a much better outcome, no fighting the ecu for control.

It looks like im at the limit of the gearbox anyway so no more power, I just want the low response. I thought cable throttle would fix that but it looks like the cams retard till 3k revs too.

Yup. makes sense.

[scotty nm35]

After some idle issues and torque lockup slippage, I have decided to refit the oem throttle. (shame to drop power though)

I found the cable throttle didn't help the engine pickup much in the early revs, very similar takeoff so now put the low rev lack of performance down to the cam mapping.

Next I will try the V manage and see if that can awaken the low end response. If anyone spots a cheap one let me know.

[QWK32]

i remember seeing some dyno readout's done on RB's with to test the VVT switching of the stock ecu to see if any benifit could be had in altering the on/off points. they showed that nissan had it spot on as standard and there would be no gain in changing to switch point. i don't know if the VQ is the same but you'd think nissan would have it setup perfectly too.

have you thought about just getting a simple rpm switch instead of the V-manage?

Edited April 3, 2010 by QWK32

[scotty nm35]

You will find the cam adjustments are a bit more complex on the M35 and can definitely be improved on. They are set up for economy, especially under 3500 revs.

Most modern engines have a switch point for a high lift cam lobe and constantly variable overlap. No need for aftermarket cams as there is a lumpy bugger in there just waiting to be tweaked.

The reason I need the V manage is to take control of the cams once the ecu is in limp mode as this disables the whole engine. (but not the gearbox, lucky.)