Im close to putting in a Gems ECU into my STI V2, anyone got experiences of these, and what sort of difference did it make. What sort of bhp increases did you get. Cheers.

 

I am running a GEMS ECU and have been 110% impressed with the unit.

Good idle control including compensation for Air Con etc.

Dual ignition maps for example 95 ron and Optimax or a racing map for Optimax + Booster.

Anti-lag switch.

Good resolution i.e. load sites. I think there are 14?? I will have to check.

I will try and dig out more details if you are interested?? let me know..

Joules

 

Can you tune the map yourself or does it have to be carried out by a dealer?

 

Opps, you asked about performance ....

I have a lot more torque and a little more power on my STiV. The figures to be verified on a RR are about 300lbs at 3400 rpm and 290~300 BHP.

The latter being a conservative map with no detonation at any load site.

 

You can tune the MAP yourself but I DO NOT recommend that!!

IT take an awful lot of experience. In my case 2hrs and 127 miles.

A very good mapper is Steve Simpson.. he does a lot of rally cars around the Midlands.

If you need a contact try

http://www.townendgarage.co.uk/parts.asp


Oh
The spec on the GEMS is as follows

Spec/Features as follows:
All maps 14 Load X 20 RPM (280 sites)
Mappable Fuel,Ignition,Boost,ALS,Water Injection.
Closed loop boost control.Fully 3d mappable target boost. Closed loop idle speed control with:
Cold start fast idle
A/C Auto speed up
A/C auto switch off at preset boost
Anti stall Map controlling either Idle Valve or Ign Timing Switchable Fuel and Ign maps for different fuels
Water spray control from boost and Air Temp with variable
delay timer.
Air temp advance correction
Overboost Limit map
Mappable acceleration enrichment by throttle and RPM
Mappable deceleration fuel cut
Shift light
2 stage rev limiter (Fuel and Ign cut)
Semi active Electronic Centre Diff control:
Throttle activated lock
Foot Brake activated lock
Handbrake release
Priority setting for left foot braking
Data logging of all engine sensor parameters
Immobiliser
Individual cylinder fuel trim
Individual cylinder ign advance trim
Anti lag / Launch control
Hope this helps


Cheers,

Julian

 

Thanks for that Joules-great help. Pretty much got my heart set on one now so ill let you know how i get on. Cheers.