[V8munro]

I am in England so using a bmw engine specialist over here. I think the damage to my pistons is due to some pre ignition i was getting when doing some high speed pulls due to not fitting colder plugs and not regapping initially after installing my jb4 and meth, i changed the plugs in january but never put a bore scope down till february after i had a meth flow issue due to a faulty solenoid. Since then ive set some fast 100-200 times and been to the drag strip with no issues at all so unless it ran lean again and cylinder temp went up i think it would be ok as the detonation is only light. The only parts in the engine i plan to change from oem are the rods and the pistons, i will be using oem gaskets, shells, valves and cams i will also be using stock compression 10:1 and i will not be going for larger turbos just pure stage 2. In my mind the engine forged with ps2 should still be pretty reliable.

I dont think the jb4 is a bad tune for our cars and on mine i see the afrs are slightly rich if anything, that said theres alot of user adjustability and caution is needed when setting boost additive and a few other settings.

Also most of us who want to exceed 22psi have done so with jb4 so i guess most the more aggressively tuned cars are using jb4 and thats why they are failing. My car still runs as it should and I blame myself for not swapping plugs when i installed but i didnt understand plug temps and just thought id get a misfire and change.

Im also fitting the csf charge coolers, they have been powder coated similar to sakhir orange and i also have a supersprint exhaust manifold going on.

I currently have decat pipes but i am tempted to refit my cats but hollowed out and wrapped to try and keep the heat in and stop that annoying wastegate rattle being so loud as it really bugs me.

With stock turbos and stock engine my current 100-200 is 4.9 and my 60-130 5.8 so im looking forward to seeing how much lower i can get that number. I guess as im using stock compression the engine should run basically the same and those pulls were done with cold iats so the main power gains will be from the pure stage 2s and the manifold.