fuel cut defender

[pixy]

hi, i\'m a fairly newbie to the rx and have a question - where can i get a fuel cut defender?  i am putting a new clutch in my FC next week and i\'m going to fit a fully de-catted stainless exhaust which came with the car at the same time. by looking through the forum i\'m guessing i will need one - also have induction kit fitted.
 
thanks in advance

[arrouk]

im not 100% on the fc but but i would hang for with the mods until you know there safe. the rotary is a bit delicate and i know on the fd a decat can cause all sorts of problems if not accompanied by the correct fule mods.

im sure one of the fc lads will be along shortly to clue you in on the fc\'s specifics. or try in the fc section i think there\'s a post of different mods and there results.

also wlcome to the club mate.

matt

[pixy]

cheers, i don\'t really know much about rotaries - always had piston engines and done loads of rebuilds etc on them. i just thought id fit the stanless as its taking up valuable garage space - the FC came with a van load of spares including the stainless!

[pdtaylor18]

You can run the car with the de-cat stainless system just dont go holding on those revs too much.  You will most certainly need a FCD as otherwise the ECU will simply cut the fuel off if it boosts too much.  I am also in the stages of doing much the same but going to invest in a Apexi PFC and a wiring adapter (FD PFC) this will then have no need for a FCD

[Jono FD3]

I thought the fuel cut was there for a reason..... if overboost occurs it stops you doing damage to the engine???

jono

[pdtaylor18]

well yes but it stops the ECU cutting the fuel off or rather raises the levels at which it does it.  When you decat and add intakes and exhausts its so very easy to get boost creep and at a rather large scale and it will happen in a blink,the ECU will cut the fuel normally but this could be detrimental to a rotary.  If you have a Power FC this will stop this as well.

[Timmy]

In my expireance of fcd\'s you shouldn\'t go putting them on without fueling mods. They work by tricking the ecu so will no longer fuel correctly for that level of boost. I\'ve heard of many piston engines been destroyed this way.

[pixy]

right now for an update, never got roung to fitting the clutch till last weekend as was way too busy so i had plenty of time to get an fcd. got one from ebay - turned out it was i australia! got it 6 months ago and plugged it in but i dont read any boost with it connected so i am having to run without it for now and being careful! i\'ve had it apart and no dry solder joints so i\'m guessing its dead. has anyone on here got a 2nd hand one they want to get rid of for a reasonable price?

[Brett]

Theres normally plenty on ebay.com - look for the KNightsports FBCD\'s they are normally pretty good.

[grinder]

when it was connected could you feel the boost ??

when i fitted one to mine the stock gauge hardly moved but the aftermarket boost gauge showed .9bar

so if you can feel it boosting - then its working as it should be

if you dont want it though - im happy to try it for you ( i need a FCD as im gonna decat mine and have been looking for one for ages ! )

Stu

[pixy]

it did feel down on power IIRC - it was nearly a week ago! i\'ll try it again later and let u know if its still boosting or not, it is a knightsports FCD and i got a aftermarket boost guage to fit also. i have noticed that my factory boost guage is a bit tempermental! one day it goes right to top of guage others only half way but boost always feels the same!

[grinder]

hummmm ... it shouldnt be down on power with the FCD - and like i said - should boost happy to .9bar on the other guage

i know this is a silly question - how did you plug it in ?

[BenLewisMav]

I\'ve got a spare Knightsport FCD for sale, paid £75 for it, looking for £55, barely used as I went down the Microtech route.
Here\'s a pic;

[BenLewisMav]

I can confirm its working, have hit around 12psi with my 3\'\' straight through (to no ill effect!)

 
Please contact me at ben_s_lewis AT hotmail.com (I check that more often than here!)
It can be collected from Coventry or Paypal-ed from verified account. thanks

[pixy]

cheers for the offer benlewismav thats exactly the one i have at mo - i\'ll let you know once i\'ve tested mine again - i\', going to crudely attach the aftermarket guage (its sat on my sideboard at home at mo!) quickly to see what its boosting at. it wouldn\'y surprise me if its dead cos i only gave £25 for it. Grinder i connected it by unplugging the boost pressure sensor and connecting the fcd in line with the plugs - can\'t go any other way can it? but just to chck how many wires have you got going inoto your boost sensor on the car loom plug? i\'ve only got 3 and the FCD has 4 is this normal?
cheers for the help so far guys