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The comments re the Revo trail staying on the ECU are true, if you then decide to get another map, some tuners will need to remove the ECU from the car "bench flash" your new map onto it..not ideal but not the end of the world..

what condition are your spark plugs in? http://www.verrill.com/moto/sellingguide/sparkplugs/plugcolorchart.htm ...can be a useful indicator. If you take the intake pipe off the throttle body you should be able to see if there is much oil coming past the turbocharger. If one plug is...

Its a very funny one to go. I dont think its a common problem. The hall sensor is a non-contact feedback sensor to report camshaft position, its not the actuator that moves cam timing. What was the other fault? I would def do more digging before shelling out on that. Chances are the...

4000rpm is near peak torque which is higher cylinder pressure which is higher voltage demand which means more likely coil or plug.

The ECU will not always flag a misfire. It needs to be very serious to bring the Engine light on. if you log engine groups 015 and 016 on VAGCOM you will see individual cylinder misfires, if you drive up the road and repeat the conditions the misfire occurs, you should be able to tell which...

I think there is a serious point to make here: XS Power are Chinese copy turbochargers. Do not, under ANY CIRCUMSTANCE BUY ONE. These turbochargers are designed for diesel engines, they are then copied ( using poor quality materials and internal clearances) and sold as performance gasoline...

Hi, Id suggest that this turbochager is not a good choice for a 400bhp conversion. The GT28RS has a 60mm compressor wheel and this is too small to be efficient at the mass flow required for 400bhp. The 71mm compressor wheel version will do it but its not a great unit. If you want a...

I wouls seriously seriously recommned that you dont do this. You can permantly damage your turbocharger and or engine if you move the minimum vane position ( which is the screw you are talking about) You will be in danger of overspeeding the turbo and it will cost you a lot of money to...

Thats an interesting point, ive been reading on some of the ECU forums that the revo trial can cause problems if you then try and use another OBD type ECU upgrade from another company, anyone else heard of this?

have you changed any of the boost settings? Is the problem at around 2900rpm? If you up the boost the voltage demand increases and you can lose a spark, especially if the coil packs are weak. Your plugs should be 0.8-1.0mm. If you drop the spark gap to .6mm this should cure it (if that...

Evomaster, your HKS DV wont work on a diesel engine. A dump valave is only for petrol engines. The dump valve diverts or "dumps" excess boost pressure to stop the turbo cpmpressor stalling when the throttle plate is closed on a petrol engine ( during gearchange or over-run for example) engine)...

Drive a couple of extra junctions down the motorway, or find a 15 mile backroad journey to work. Car gets warm and you have fun every morning. :arco:

That is one shiny motor. Im in cheshire if you want to pop round and give mine a going over... :salute:

Gary, was the turbo a new or re-con unit?

Hi Guys, Just be sure which pipe you use. Dont tee the boost guage into the pipe that goes to the turbocharger actuator. The VNT turbo uses the vacume signal from the vacume pump to control the turbocharger vanes. It does NOT use boost pressure so you will not see a boost reading if you tap...

Changed the mechanism (which incorporates the switch) this afternoon. 10 min job. I can now see my boot contents in the dark.....

the switch can only be bought as part of the lock mechanism, 27+VAT from the dealer. Just ordered it. Grrrr

I think someones been busy with excel data! According to that graph, not only does a FMIC release an extra 25bhp over the entire rpm range from 3500-6500 but it also makes the turbo spool up faster as the boost arises 300rpm earlier with the FMIC.. That power curve is also very strange, max...

Its the old saying. You dont get something for nothing! And yes, you can cause some serious problems with re-maps. The problem i think is that most of the re-map guys have electronic engineering backgrounds, great for burning new maps on ECU EEPROMS but not very useful if they dont know...

the switch is on the bootlid itself, its a small microswitch attached to teh release mechanism. Not sure how much the part is, if someone could find out please let me know! One of those jobs ive just not got round to yet!