RX7 FD3S Turbo Half Bridge 13b Setup for old school rx7 - parts combination to drop in FB RX7 - KMR

[@AndreaPeli-i8m]

Beautiful build, the 13b rew continues to be a fantastic engine! Too bad it's increasingly difficult to find them at a good price! I would like to talk about a topic that is rarely discussed by searching online, Mazda supplies a wide range of stationary Gear bearings which allow you to precisely obtain a specific oil GAP recommended to be between 0.06 and 0.08, giving the maximum limit 0.1mm! But in racing engines which gap is ideal to maintain by increasing the pressure of the lubrication circuit and which grades of oil are best in these conditions?

[@vickanis2234]

So will this be fuel injected or carbureted? Why do you need to use the older front cover?

[@KyleMohanRacing]

@vickanis2234 fuel injection and The front cover is the mounting point in a first generation rx7

[@johnnygeorgopoulos4072]

Question, why go through the extras, knowing it's going under boost, and _not_ just stud it anyway? Wouldn't that be a relatively cheap way to have piece of mind knowing you don't have to freak out about something happening about your boost management? 🤔

[@KyleMohanRacing]

@johnnygeorgopoulos4072 If you've got the money, studing a block is always a good way to go. Generally, you just don't need it under 18PSI. I think It's like I often say, if you know what your goals are, you can build accordingly.

[@johnnygeorgopoulos4072]

​@@KyleMohanRacing I've never studded, nor priced it, nor has any rotary shop or builder I've watched ever given an "around the bout" price for studding or doweling.... I've only had experience with NA 12A bridge that I had bought already built many, many years ago, so I didn't know the price....but swapping to a better steel stud instead of a lesser OEM bolt, in my overall knowledge, doesn't _seem_ like it should cost something crazy.... I would think it would be in line with going with premium head and rod studs on a piston engine....or am I wrong?