Hks Fuel Cut Defencer

[l2 nrm]

[hks fuel cut defencer

are these any good?safe?

cheers scott

[the squiggle]

[hks fuel cut defencer

are these any good?safe?

cheers scott

Not recommended unless the car is checked for fuelling and Det by someone that knows what they are looking/listening for

Fuel cut on the std ECU is there to protect the engine.

[l2 nrm]

if i decide to get it all parts will be bought and filled buy glenburgie cars (www.glenburgie-subaru.co.uk)

he said need the hks fuel cut defencer pipework bleed valve and about 2hrs t fit and setup

scott

[johnnyr6]

?? there is no pipework with the hks defencer, it's an electrical device that you splice into the ecu loom.

but to answer your question, a fcd set up properly is ok but not ideal.

What you are looking at is a cheap way to increase boost but it can be risky if not done properly, i.e, you can run lean and feck engines.

If your looking to increase power on a budget and havn't already done so i'd get a decat downpipe and decent filter.

If you want to increase boost but don't want to spend £££'s on ecu's then get a proper electrical boost controller like an apexi avcr or a scooby ecu chip, keeping boost to around 1.2bar but i would look into ensuring the car gets enough fuel. Ideally on a r/r or someone with a wideband to make sure it's happy with the extra boost.

Johnny

Edited November 6, 2007 by JohnnyR6

[l2 nrm]

?? there is no pipework with the hks defencer, it's an electrical device that you splice into the ecu loom.

but to answer your question, a fcd set up properly is ok but not ideal.

What you are looking at is a cheap way to increase boost but it can be risky if not done properly, i.e, you can run lean and feck engines.

If your looking to increase power on a budget and havn't already done so i'd get a decat downpipe and decent filter.

If you want to increase boost but don't want to spend £££'s on ecu's then get a proper electrical boost controller like an apexi avcr or a scooby ecu chip, keeping boost to around 1.2bar but i would look into ensuring the car gets enough fuel. Ideally on a r/r or someone with a wideband to make sure it's happy with the extra boost.

Johnny

i am guessing the pipe work is for the bleed valve?he siad 1.2bar would be what he would put it too?glenburgie seam to have a good name round this area!want to give it bit more go but safely?as for cost he said above would be about 290£ fitted

100 for fitting

125 for hks defender

65 for bleed valve and pipe work

really not sure what to do with it

cheers scott

[the squiggle]

i am guessing the pipe work is for the bleed valve?he siad 1.2bar would be what he would put it too?glenburgie seam to have a good name round this area!want to give it bit more go but safely?as for cost he said above would be about 290£ fitted

100 for fitting

125 for hks defender

65 for bleed valve and pipe work

really not sure what to do with it

cheers scott

Hope after they take your money they at least use the proper equipment to make sure it is safe or else you may be going back soon for a new engine

£65 for a Bleed valve, wow erm is this Dick Turpin racing by another name. Not to mention the £100 to fit 4 wires to the ECU and a Bleed Valve. So 300 sheets to make the car quicker, without checking the car is not Detting its nuts off or running lean.

I would go for a ScoobyECU which costs about 150 and adjusts the fuelling and timing to UK spec. This chip allows the car to run more power safely on UK fuel

[scouk]

Ideally on a r/r or someone with a wideband to make sure it's happy with the extra boost.

Although just to comfirm what is a wideband? I've been tryign to find out for ages but never foudn a true answer. I believe it's just a gauge reporting the Air to Fuel Ratio (AFR). If that's the case is a 3rd party sideband preferred over the ECU's AFR data? Is that because the ECU AFR results are inaccurate/dont update quickly enough? Just curious. I "tweak" my own bugeye but before I can refine the map it's been recommended that I install a wideband. Which strangely I cant seem to get a sensible answer as to what it is.

And just to add my 2 pence. I've met the guy at glenburgie a couple of times classics are definately more his thing than the new age! But I take it he does plug in some sort of ECU monitoring if he's playign with boost values rather than just a Plug'n'play then BooM! method... Pushing the boost up has an effect on nearly all aspects of the ECU management and if it's not balanced properly things get nasty...

[the squiggle]

2 types of Lambda sensor

Narrowband which runs 0 - 1.0 volts and primarily designed for emiisions control when puttlin about town, these generally are inaccurate when you give the car some beans

Wideband which runs 0 - 5.0 volts and primarily designed for tuning to give an accurate readout of the AFR leaving the exhaust

[l2 nrm]

now am scared lol think ill just leave it the now and get a remap at some point!

[scouk]

2 types of Lambda sensor

Narrowband which runs 0 - 1.0 volts and primarily designed for emiisions control when puttlin about town, these generally are inaccurate when you give the car some beans

Wideband which runs 0 - 5.0 volts and primarily designed for tuning to give an accurate readout of the AFR leaving the exhaust

Cool thanks! That makes sense.. More accurate.. So are they easy enough to install? or does the ECU need to be refangled to adjust to the wider voltage range?

now am scared lol think ill just leave it the now and get a remap at some point!

LOL! If I'm to give my own opinion (which I will whether you want it or not ) I'd say get used to the power and handling of the impreza first and decide from there what you'd like to do to it. THe impreza will be a different animal to a Golf Turbo.. Dunno how much oomph mine has on paper these days but I removed one of the cats from the exhaust, put on free-er flowing backbox, replace couple cheapo plastic hoses under the bonnet with strnger silicone ones. Then finally remaped it along with tweaking the wastegate ont eh turbo to allow for extra boost. All changes beign monitored on the ECU makins sure all is well.. Result is a MUCH more drivable car, smoother, more responsive and buckets more boost! Up from 0.9bar to 1.27bar and boy it make a difference.. YOu dont want your hands too far away from the gearstick when going up through the gears!!

Modding away at the impreza is seriously addictive (as I've foudn out.. I remember saying in Jan this year I had no intentions of tweaking) but a remap should be through of.. Even de-cattign the exhaust can do long term damage as the engine is breathing differently to what it was origonally meant to at the factory and would also throw up ECU warnings on the dash which arent nice to look at.

No disrespect to the guy at glenburgie but if your serious about getting more boost I'd give AndyF a call for a chat about what you want from the car and take it from there..

[l2 nrm]

i you are rite the golf is slow lol!should have kept the s3 i had as it was quick as **** lol

[johnnyr6]

Cheers grant, L2, firstly a remap is a good idea but what has been done to your car so far? Also which year?

If it was me then firstly i would get a decat pipe and 3" system with free flowing filter. If you already have this then a scoobyecu if it's and early car or my99 on an ecu tek remap.

I would also consider an uprated fuel pump and large supply of octane booster...lol

Johnny