Burnouts do happen. Most common causes:
- Dry drass on you exhuast (more likely Catalysts converters, but free-flow is not impossible)
- Electrical short that is not fused
- Fuel spitting carburators (the old Lamborghini Miuria was a common burnout due to this)
- Turbocharger failure resulting in an engine fire
- Fuel leaking onto the exhaust or the manifold
With regard to wiring on engine conversions. This is actually quite limited:
The only new connections that need to be made on an engine conversion are as follows:
- Temp gauge
- Rev counter and
- ECU
But you can equally easily botch the wiring when installing the auxillary battery.
Fuel leakages:
This can happen if plumbing was bad. Also happens on older cars and bad maintenance.
In Wimpie's case there was a short in his wiring harness that did not kick off the fuse.
He was clear to me it had nothing to do with his conversion.
The second burnout was JG Shields:
His was not a Lexus conversion but a TB48 transplant (although he was waiting for a Lexus, a 4.8 became available after a rear-end accident - engine was unscathed)
In his case he got himself a suspenion lift after the conversion. Then, the break pipe was too stretched and started leaking onto his exhaust (one really needs to check these things after a suspension lift). Hot break fluid was flammable. Not good.
Moral of the story;
What ever mods you do to your car, make sure it is done right the first time.
Be that suspension lift, second battery, engine replacement, conversion, whatever.
The burnout on this thread was a perfectly good Disco (3 or 4) - (if there is such a thing).
http://www.4x4community.co.za/forum/sho ... light=Burn
My guess on the cause is, grass on the cat converter, since wiring and pipes should still have been good as new.
