hunswon

Which is the best ECU upgrade togo for, Im looking at wanting to get about 300-320bhp, I have a Full system from Turbo down and Air Filter.. So what can I do next? got about 1500 pounds to play with...

Nate

madras

Speak to Mervin at Power Engineering, he's a bit of a god when it come to ECU's, IMHO.

Tel: 01895-464646

He modified my prodive ecu, v happy with the results.

Pete

hunswon

Going to get them to look at the car when I return back to the UK on the 27th of April... Thinking I might treat the Beast to a Motec ECU

Adam M

The new steven done ecutek ecu lark is supposed to be good, but again, its only ever going to be as good as the mapper.

I have spoken to merve though in the past and I have no reason to doubt his abilities at all.

Power engineering to a lot of flack over their phase 1 remap, some for say for good reason, others disagree.

I do know that the suspect mapping at teh time was not carried out by merv, so I would not be as afraid to use them.

I would still be far more comfortable with an all singing all dancing motec or gems ecu, with a trusted mapper. Puerly because it goves greater adjustability and is easier to change!

StephenDone

Hi Adam,

Horses for courses really. If you want to tinker with your map regularly, a Motec is the way to go. If you want the car setup & tested once, then left alone, the OEM remap is more suitable. If you buy a Motec, you have to map it from scratch. If you modify an OEM ecu you only change the bits you aren't happy with. It really depends on whether you want to map it yourself, or get someone else to do it. Time is money, and mapping from scratch obviously takes more time. Plus you have to buy the hardware.

Cheers

Steve

P.S. I don't profess to be a mapper, though I'm learning - I just write the software to make it possible.

madou

Done well to resist a rant

Floyd

iTrader: (9)

Question for Stephen. How many times can you remap the std ECU?

I'm talking about when you add mods etc and want a bespoke map each time to cater for them.

F

john banks

That is an interesting question Floyd as a lot of Flash memory/microcontroller chips have a write cycle of about 1000 times. I wonder if the Subaru ECU is similar? EEPROM tends to be about 1000000.

StephenDone

Minimum of 100 times, though this is probably a conservative figure.

Steve

Danny Fisher

Hunswon, you dont state what year scoob you have?

Stephen, foe his budget I think the Motec would be a little out of range.

Hunswon, speak to Andy at BRD, they can sell you either a Link ECU of a Motec. Also included in the purchase cast is an initial map, followed up by a 'Tune Up' a short while later. Both these options allow you to tinker with the maps.

Horses for courses, I would be swung towards getting the link. I have owned one, and then moved on to the motec M48 Pro (prefered model for a scoob). Both gave good results, check the dyno page for the different types of upgrades and what results they give.

dyno.scoobynet.co.uk

Dan

[Edited by Danny Fisher - 3/27/2002 9:31:45 PM]

FOZ STiV5

The GEMS ecu ... has almost all the features of more expensive MOTEC's with added idle stepper motor control.

Summary -

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


Been running it for a month now and I am very pleased.... config is for torque... estimated at around 300 lbs at 4000 ish.

Cheers,

Julian

StephenDone

Hi Julian,

I don't know much about the GEMS...
How much is it for the hardware kit ?
Is it plug & play, or do you have to cut the loom ?
Does it come with the logging software or is that extra ?

Cheers

Steve

FOZ STiV5

Hi Steve,

The GEMS is plug and play.... don't know about the software though?? Selling price seems to be £1600 + VAT.

GEMS does need another sensor i.e. Inlet manifold air temp. This is included in the latter price.

Cheers,

Julian

StephenDone

Thanks for the info

Steve

Boostman

Hi Julian,

Who supplies and fits the Gems ECU? I'm in Hampshire but would travel if it's worth it,I have a 1996 WRX currently with 280bhp,is the Gems unit suitable for me?


Cheers,
Len.

FOZ STiV5

Hi there Len,

The Guy who is most knowledgeable at mapping the GEMS lives in Macclesfield near Manchester. He does travel all over, because he does many rally car set-ups. I.e. Townend Garage cars. So I guess going to you would not present a problem.

If you are serious and want more info email me direct and I can pass you more details.

With regards you car, I guess the ignition advance of the standard ECU you are running is less than mine was. If this is the case you will have a greater safety margin with regards running. My car used to det occasionally and hence I wanted dual maps setting for UK conditions, fuel and my particular car setup. After this my car was mapped for torque not power. This is of course optional, but remember even rally cars are generally mapped this way. For example a rally car may have 2.8 Bar boost at 4000 REVS!!! but only 0.8 Bar at 6000!! still the choice is yours ....look good on the RR or go very quickly on you local tarmac.

Your car but probably benefit to the tune of a genuine 285BHP, (note some RR's are a little on the generous side) and +50 lbs or torque. Or it could be mapped up to give at a guess +30~40 BHP.

Cheers

Julian

hunswon

My Car is a MY94 WRX STI....

So what would be the best option...

Nate

FOZ STiV5

Depends on your budget... however if your car has a closed deck block you have a fair amount of potential without needing Cosworth internals.

Mail me direct if you like

Julian