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Are Manual Conversions Still Cool? Or Auto Mod Options

zoomzoom

By zoomzoom,
in Four Door Family & Wagoneers

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zoomzoom Mentor

zoomzoom

Posted
Posted

Ive recently had my stock turbo rebuilt as a high flow unit from hypergear, and its showing up a few drawbacks in the transmission. Previously the turbo would spool up so quick, it allowed the motor to stay in the higher gears (because of less throttle) and use the torque. The new turbo needs more throttle to spool it up at low revs, but then it leads the transmission to kickdown.

Its not the end of the world, but I would like to have some more control over the transmission. Obviously a manual would solve everything, but since Ive spent time fixing and modifying my current chassis, I dont want to sell it and find a new vehicle. However, for a 17 year old car I dont think its worthwhile going down the manual conversion route either.

Im also not chasing lots of power, which leads me to ponder what can be done with the auto trans. Can the series 1 auto transmission be manualised? Is it suitable for a street car? I guess most people just ditch the auto which is fair enough.

Alternatively, I look at other turbo options....

Ben C34 Grand Master

Ben C34

Posted
Posted

You can get a box that modifies the shift points based on throttle position, Can't remember the name of it, but it basically intercepts the tps signal going to the trans, that would fix your issue.

zoomzoom Mentor

zoomzoom

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You can get a box that modifies the shift points based on throttle position, Can't remember the name of it, but it basically intercepts the tps signal going to the trans, that would fix your issue.

Very interesting, I would assume it would have to translate the linear response to a logarithmic one. (So the trans would still read "full throttle" if you put your foot down.)

Sounds like it would help with the lock up clutch too, which unlocks FAR too easy in normal driving.

Any key words to help me search for it?

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

I was keen to hang on to my auto as long as possible but just 240awkw seemed to accelerate its demise. Contact Mike at MV Automatics for mods (although I believe there is another shop somewhere that does beef up autos). If you blow the auto you should be able to buy another one for $100 - $150 (I gave mine to the scrap dealer).

Having said that I now have a GTR box and much prefer it except when stuck in traffic.

zoomzoom Mentor

zoomzoom

Posted
  • Author
Posted

I was keen to hang on to my auto as long as possible but just 240awkw seemed to accelerate its demise. Contact Mike at MV Automatics for mods (although I believe there is another shop somewhere that does beef up autos). If you blow the auto you should be able to buy another one for $100 - $150 (I gave mine to the scrap dealer).

Having said that I now have a GTR box and much prefer it except when stuck in traffic.

On a side note, I guess that was not on a stock ECU? What are people using to operate in conjunction with the series 1 auto ecu? (for ignition cut etc. Ive seen references to difficulties in that regard)

In the meantime I am interested in this TPS adjustment, though I cant find anything on SAU about it.

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

On a side note, I guess that was not on a stock ECU? What are people using to operate in conjunction with the series 1 auto ecu? (for ignition cut etc. Ive seen references to difficulties in that regard)

No not stock ecu.

I went through a lot of stages - would have been cheaper to go manual and Link G4

but first stage was Jaycar boost controller, Apexi SITC for timing and an Apexi SAFC for fuelling and another gadget to defeat the 180 speed limit.

stage 2 was an R32 ecu with a tailor made chip piggy backed on to my stock ecu

and then (should have done it first) manual GTR box and G4 Link ecu.

If you want to keep the auto best option is a Greddy E-Manage (or HKS piggyback unit if you have an HKS tuner nearby) or get Toshi on this forum to make you a chip (he has to supply and fit a new daughterboard to your ecu and I believe then only he can tune it ...make a new chip)

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

You can get a box that modifies the shift points based on throttle position, Can't remember the name of it, but it basically intercepts the tps signal going to the trans, that would fix your issue.

One of these maybe?

http://www.carcraft.com/techarticles/ccrp_1203_transmission_controllers_tested/

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