SIR

Does anyone have a RVR turbo TD04 15g sitting around they want to offload cheap?  I am in the process of putting a putting a 4G61 into an old lancer and I have been told that these are the perfect size for a 1.6L.

Also after a non-cast manifold so I can cut and re-weld it to suit RWD application.

I am in SA but I could pay postage if the price is right.

Hi Guys

Up to yesterday I was running the stock 12mm 6bolt head bolts on vr4 motor, and it has started to push a fair amount of coolant out under boost (1L for 10 hot laps at Mallala).  We checked the head bolts and about half had relaxed so we re-torqued the bolts and it was good for about 30more laps of racing then it started again, so we suspect either the head bolts have stretched or the head has gone soft.

I am taking the head off this weekend for a look and have started to look for some head studs. I see that over in the states you can purchase "L19" spec ARP head studs for the 6bolt https://www.extremep...productid=21008  they are a lot more expensive especially once shipped, I couldn't find them locally.

Question is are people getting away with the standard ARP studs?  My engine is in a race car so it is constantly being flogged, boost peaks at 22psi before being choked by a restrictor and it is very high comp motor on E85, been using a felpro permatorque MLS gasket.  I have read on other forums that the standard ARP studs are not much stronger than the stock 6bolt 12mm bolts??

Also any issues with the VR4 heads going soft?  It is an issue that the Toyota guys seem to have with keep clamp on the head gasket never heard of it for the 4g63.