Well as many know I blew my fresh motor recently. Cause has now been determined conclusively to be detonation. Primary factor, front hub was a jdm hub and the timing marks lined up grossly different resulting in way too much advance. Now it will be stronger, with S4 rotors, solid corner seals, 3 mm apex seals (I know 2 mm seal better, but these 3 mm will not break), new s6 housings, fresh lapping...I wanted this update to be as bullet proof as possible. More updates to come including pre-installation pics and pics of the methanol injector location in the lower intake (maybe a video as well). Installation to be done within the coming week.

 

for what you are doing the 3mm apex seals are better.. bottom line

get a racing beat main pulley so your right on with the timing... dont forget the cold plugs

 

Thanks for the pm's Robert. This is with a camden.

 

Detonation kills! This is what happened to my 4 month old engine with s5 rotors and brand new S6 housings from detonation. primary cause, catastrophic detonation. Why you might ask? Engine was assembled with a jspec hub which had the front pulley off by about 90 degrees, which had timing way out to lunch. Funny thing was you couldn't hear the detonation? I spent time with the new builder investigating the failure (previous builder said to investigate "everything" to determine the failure so history doesn't repeat itself). Upon assembly we ensured the engine was at top dead center and then lined the pulley up and saw it was way off. Next, we grabbed a north american S4 front hub, installed the pulley and the marks were right on compared to a stock s4 pulley. Hmmmmmmmm, would some blame the builder, ahhhh yeah, but I did take responsibility for my own tuning. New engine is built to be bullet proof and it will be tested with spray after full break in as well. I also relocated the water methanol to the lower intake for better safety as well.

 

BTW, those were factory "mazda" 2mm seals which tend to break on the tips from detonation and the housing never survives the fight. This time I am running custom 3mm seals which will not break.

 

Mock-up before installation of new engine...right now rain is preventing installation. Plus I want to swap out the steering box before the installation as well.

 

One more pic

 

very nice. half bridge

 

Just found out how to add a linked pic....

 

looks like a hand full . I love how when ever we turbo / supercharge our cars the unit we're installing looks bigger than the engine. lol

 

Did you glass bead and/or cut slots in the SC pulley? Is it a -8? Has belt slippage disappeared?

 

Haven't done it yet but i will be glass beading the #8 since i have access to a beader. Figured out the big pic thing now too....

And I dealt with the hood clearance issue (it will be sticking out a little higher this time though.

 

Can't believe you got it back together that quick!

 

Not exactly, the puic of the car was "before" with the engine I just blew, but I'm almost there.....

 

was commenting on the rebuild!

 

Well Gary that didnt take you long at all

 

What flywheel is going with this engine? The stocker in the picture? I hope not. The extra rotating mass of the SC makes it feel like your flywheel is heavier than it is. I'd say go aluminum if you have one kicking around. Or at the very least light steel.

 

Nice job, got to love the flat black hoods on an fb. Just like my poor car.lol

 

S4 flywheel, the extra weight of it combined with the s4 rotors will actually provide a better launch. Otherwise, budget was tapped out anyway..

 

i cant wait to see how this turns out!! this looks to be an awesome build!

 

Water methanol is plumbed in the lower manifold intake stream

This is using a snow performance kit on the car.