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Tuning EMS on ECCS RB20det - Help please

R31_GTSX

By R31_GTSX,
in Engines & Forced Induction

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R31_GTSX Rising Star

R31_GTSX

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Hi all..

I'm after some help in tuning up my RB20det which is sitting in my 260z.. I've got a fully programable EMS computer with a Handset.

The car came with the ems but wasn't running due to some mechanical issues.. All of these issues are now sorted except the EMS. The car seems to be running fine but it doesn't produce ANY power... The turbo spools up and the hand set reads 10psi boost but there is no difference between on boost and off boost.

Was wondering if anyone on here was running an EMS that could give me an idea of the settings that you are using.

The only modification to this one is a larger VG30 Non ball bearing turbo + 2.5" exhaust.

Is it possible to copy maps and settings from one EMS to another?

I'm in Adelaide and any help would be appreciated!.

Trav

51jay Mentor

51jay

Posted
Posted

Have you got the ems cable to connect the ems to a laptop or pc and the ems software to setup using laptop or pc. If not their url is http://www.fuel-injection.com/. you can download it there.

Which ems have you got mine is the Duel Sport.

R31_GTSX Rising Star

R31_GTSX

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Skyrine-Dave,

thanks for that mate that will definatly be of help, what sort of power did you get out of it with those mods? did the EMS make much of a difference for you?

51Jay, the model number is QI-4 from around about 1999 so i'm not sure if that means its a dual sport or not.

Trav

Skyrine-Dave Mentor

Skyrine-Dave

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Posted

R31-GTSX, thats a dual sport model. I have the QM4/QI4.

With that setup it ran 236hp@wheels. Which really isnt that great considering what is done to it.

When you go into setup it should have a 1, or 2 down the bottom right? i think. That indicates which map you are on. I havent used this before but i think you can have a tune for say outright HP or a tune for economy and switch between the two.

Dave

R31_GTSX Rising Star

R31_GTSX

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236hp isn't bad at all!

i'd be pretty happy with that, do you have a fuel pressure regulator on yours? if so what fuel pressure are you running on boost and off boost.?

A couple of other things i have to do first is install a surge tank and some larger diameter fuel lines then i'll hook it up to the lap top and punch in the numbers you gave me... then i'll go from there.. Its a good start!

I'm just not sure how different mine would be running a lower spec fuel pump than yours.. plus the zed's not intercooled as yet.

Thanks again.

Trav

Skyrine-Dave Mentor

Skyrine-Dave

Posted
Posted

i have another tune sheet i can send ya, but it was tuned for a GTR intercooler, and when i ran my setup on that tune with a stocko 32 cooler the car ran waaay to rich and managed to foul a set of plugs in 2 weeks.

I got the stocko reg on my car, as i have 460cc injectors going in soon. Dont know if i should get a rising rate reg or not.

as for fuel pump. I had the richer map tuned for a R33 GTS-t fuel pump. So whatever pump you have should be fine.

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