KejoTII

hi, all. it has been quite a while. well let me get right to it. im getting my JDM 13bt rebuilt and my builder has recommended for me to use the atkins cryo treated apex seals or the rotary aviation super seals (both 2mm).

now, after the rebuid, it should have a large streetport. walbro fuel pump w/ rewire. stock TMIC, 4 x 550cc injectors, stock ECU(90 TII) stock turbo with aftermarket external wastegate and some kind of FPR. im not sure if thats everything but if i remember more ill edit this post.

so now, my questions are these.

What should the life expectency of the engine be? How much power should I expect? Which apex seal would last longer? Ive read the RA's hard, rarely break but wear the housings rather quickly. Id like my engine to last more than 20k miles (id like to be around 75k to 100k). Then the atkins i heard were gentler on the housings but are very sensitive to dentonation or pinging.

With the large streetport, would the 550cc secondaries be able to support my fuel? I plan on running maybe around 10 psi high and 5 or 6 for low and also do plan on sticking in 720 secondaries later down the road.

FYI, this will be a DD every now and then(may switch out for the civic a few days outta the week)

arghx

iTrader: (3)

1. You need 720 secondarys. Don't even bother putting the car together without them. they aren't very expensive. A motor is.

2. You clearly understand the tradeoffs between harder seals and softer seals. I personally think you're more likely to have something go wrong (like detonation, overheating) then actually wear out those housings, but some may disagree.

3. Life expectancy depends on whether something goes wrong in most cases.

4. Power will be between 220 and 250 to the wheels, depending on boost, the dyno, conditions, etc.

5. You will need an SAFC and a FCD. If you had an s4 you could use an Rtek chip, but that's not an option for you.

The Wankler

iTrader: (14)

arghx got ya on the right path. I would add, life expectany will also depend on the shape of the housings.

A wideband would be very useful as well.

phoenix7

read up man:

https://www.rx7club.com/rotary-car-performance-77/unbreakable-apex-seals-720345/

https://www.rx7club.com/showthread.php?t=720345

I personally would have done more research before buying a car you know absolutely nothing about but you're already here.

Learn to search, PROPERLY, and download the FSM. Look at post #8 in the FAQs.

Time to start reading and stop posting.

KejoTII

okay i just remembered that i do have a FCD, it slipped my mind. okay, so its recommended that the injectors take a step up. does anyone recommend which vendors to purchase from? also, what should i look for, the high imp. or low imp?

also, does the EGT somewhat act like a wideband?

phoenix7

research bro, we're here to troubleshoot your problems after you've already taken the initiative to figure it out on your own. We're not here to do all the work for you.

SpecFC

Somewhat, high EGT's CAN indicate lean conditions, but from what ive found shouldnt be relied upon solely. Id recommend a wideband in addition to an egt gauge.