205 1.9 16v GTi Group A Rally Car - MI-16...Engine In...Pics

[KamRacing]

[QUOTE=MJRallying;3850732]

Originally Posted by pugmender

Yep




Yes i agree with your figures, ive spoken to hiflowheads and im getting some decent cams fitted and head modified to suit so hopefully around 190-200bhp rr depending...

The oil surge issue seems to be solved by the trap door design in the sump....it allows so much through then shuts apparently a few people who race mi16's says this cured it.

Plus rallying isnt anything like the grip you have all the time on a track (well not as much)

Well i'll disagree on less risk in rallying. The trapdoor sump design does not really help as it does not solve the issue. The problem is not there as such, but rather the fact the head can hold so much oil, if the oil cannot return to the sump, you spin the shells as its sucked away from where you need it. I have known a number of rally competitors running mi16's and they all had oil issues. There are solutions to either mask the issue or solve it completely, but I'd be spending a few quid now to save money later on. If you are running anything better than standard road tyres you will have issues. It would probably cost £100 or less to get some holes machined and tapped, then some braided hose to run to the sump. This has been used to good effect by many raceteams.
Another solution is to run solid lifters and followers as you tend to run a oilway restrictor, but this is expensive.Theres quite simply bags of information on the oil problems of this engine so i'd suggest you do a lot of research.
I know these engines very well and my race engine is getting the gti-6 head as its far superior and will eliminate the problem.

[MJRallying]

[QUOTE=KamRacing;3850972]

Originally Posted by MJRallying

Well i'll disagree on less risk in rallying. The trapdoor sump design does not really help as it does not solve the issue. The problem is not there as such, but rather the fact the head can hold so much oil, if the oil cannot return to the sump, you spin the shells as its sucked away from where you need it. I have known a number of rally competitors running mi16's and they all had oil issues. There are solutions to either mask the issue or solve it completely, but I'd be spending a few quid now to save money later on. If you are running anything better than standard road tyres you will have issues. It would probably cost £100 or less to get some holes machined and tapped, then some braided hose to run to the sump. This has been used to good effect by many raceteams.
Another solution is to run solid lifters and followers as you tend to run a oilway restrictor, but this is expensive.Theres quite simply bags of information on the oil problems of this engine so i'd suggest you do a lot of research.
I know these engines very well and my race engine is getting the gti-6 head as its far superior and will eliminate the problem.

I will probably do the head idea and save my money and do cams at a later stage....as with my gear ratios and on 45's its going to be quick enough to get going...