ScoobGT

iTrader: (7)

Hi there,
Currently I'm running an Impreza WRX MY99 with following mods:
- 2.5" open Downpipe
- decat middle section
- IHI VF28 (1.1 - 1.2 bar)
- Samco intercooler Y-pipe
- panel filter
- walbro pump

Recently I bought a ECU with ECUTEK-license, which has been mapped on another car with exactly the same mods as mine.

I plan to fit the ECUTEK-ECU in the course of the next months and then check fuelling via wideband-lambda.
Do you have any other ideas of parameters that should be checked?
(I've thought of installing a knock lite, maybe...)

And my second question:
What can I do in general to prevent big end bearing failures?

I'm using Mobil1 5W/50 atm and I change it every 7000km.

Thanks,
Rudi

Alan Jeffery

The trouble is, no two are exactly the same. Yours may run more or less boost for example, due to preload variations amongst many other possibilities.
You'd be wise to have it professionally checked out before you go off ragging it.

ALi-B

iTrader: (1)

The true answer to this question for a used engine is to rebuild it. Because how do you know the bearings in the engine of a ten year old car are healthy before you even fit this ECU? The only true way of knowing is to strip the engine apart, then inspect and measure.

If the engine has just been rebuilt and run in, then its a different matter. Just make sure it dosen't run lean, doesn't detonate and doesn't regularly suffer excessive oil temps, don't thrash it too much or run at engine high loads for too long and rectify any fueling/running/lubrication faults the very instant you are aware of them (i.e don't drive the car with a suspicion that the MAF sensor is failing- check it, fix it).

You can apply the this logic to a used/worn engine, but obviously its no guarantee against a bearing failure if the engine is already worn past its prime.