I assume you just built custom lines because you couldnt find a set of oem ? I installed our full efr 8374 kit on an fd yesterday and the oem ac lines fit fine.

 

^ Yea he could not get the right ones so he made them.

 

^^ correct.
apparently, every FD owner takes their AC out and throws everything in the trash.

 

ok i'll finally update this with my AC info:

i ended up wasting my es-12a cans, so on a whim i decided to try some R152A from air duster cans:



i used nearly the same amount of R152A as the FSM calls for R154A, as they have very similar molecules: about 20 oz.

also, the r152A is not exactly ideal, because i used an R12 style expansion valve, which has a slightly different expansion rate for the bigger molecule R12. anyway, it still gets damn cold (cold enough for the thermoswitch to cut off the compressor)

so i charged it up to about 30lbs (~80*F ambient temp, high humidity) which equaled about 180psi on the high side, and it blows cold.





i also added a splitter for the middle of the VMIC (plastic one temporarily, i'll replace it with aluminum later) because the radiator fans on HI were sucking air so hard that it was pulled air the wrong way through the intercooler, heating it up with engine bay heat:. you can also see the custom condenser, hard line, and drier i used here in this pic:

 

Me likey the splitter. I need to make one for my fd.

 

^^^ was that a compliment from RENESISFD??? crazy

thanks guy.

damn yankee

 

Well, when someone does something that is actually nice it gets a compliment.

 

That's what my dumb *** did years ago and now in regretting it for sure.

 

Be careful of these push-on hoses. My hoses came off twice luckily I didn't blow the motor. I ended up having professionally made lines from a shop near the local airport. They can make it in any sizes as long as you have all the dimensions. $150 per line.

 

track day last weekend at Barber Motorsports Park in Birmingham (about a 3 hour drive):

drove the rx7 down with the AC working beautifully, hammered all day, drove back

best lap time of the day was 1:50.0, a little over a second slower than my friend's c5 z06. we nearly had the track to ourselves in the second half of my video and i just couldn't catch him! (it's a 2001 z06 with only intake, longtube headers, and brake pads). he was fast.

i'll go ahead and cover the *broken tachometer*. most people who watch my recent videos think they've struck gold when they discover that my tach is broken, and they get really excited to tell me about it. also, if you notice the intake air temp, i'm aware that it's way hot i'm working on a cold air intake for the turbo right now. (temp outside was 93*F+ and about 45% humidity)

the first one is my in-car of my last session, second one is an earlier session of my friend's 350z in-car with me in front of him for most of the session. enjoy.

 

Car sounds sweet Jacob! You still have so much time to shave off especially by braking later. Im sure with a few more track days and youll be matching your friends z06 time.

What camera are you using? Im using the contour+2 and so far its garbage as a helmet mounted cam. Cant see anything outside.

https://www.rx7club.com/racing-kills.../#post11788419

 

Barber is a sweet track, your pace is that of a nice smooth HDPE pace for sure. late braking is not as critical as keeping momentum here. getting back on the gas early is the real goal.

but hell it was 93 degrees outside, and it does get pretty greasy out there.

that being said, if you go back in a cooler month:
turn 1 speed is not as important as set up and exit speed out of turn 2
getting set up for the hairpin is big to get exit speed and not run out of room.
same with the cork screw, speed out of here translates to speed to the kink. and which is where you were pretty conservative.

Your entry into 14 is great, you just carry more speed down hill and be on the concrete to the right and let it push out to your turn in spot for 14.


one day i will track my FD, the miata is just the easy button for now.

 

armen, THANKS. yes i also love the sound of the car since going with the new EFR turbo setup. the car is working very well at the track, and it has actually been as reliable as (if not more) the other cars in our track buddy group (8 of us). my FD actually may have the lowest coolant/oil temps of everyone in the group. my fast buddy with the z06 i mentioned hit about 280*F oil temp at the same track day, which is apparently in the danger zone of full synthetic oil temps on the LS engines. scary.

the camera is the Sony ActionCam HDR-AS15 mounted on my helmet with a skeleton case.
i think the best thing about it is the stereo microphone being on the front of the camera, so it's facing the action. it also has wifi to setup the shots via a phone app, and does 1080p at 60FPS. youtube (flash) won't display 60fps, so the videos look even better raw. this is a very good value compared to the similar gopro. i think the 400$ gopro (2x the price!) is the cheapest one that steps up in performance over the actioncam.

and about the braking, i was using hawk HP+ pads in a pinch. i previously used hawk HT-10s, then carbotech XP10s, and now hawk HP+, which are substantially less aggressive and have a substantially lower heat operation range. so, i wasn't confident in them and didn't want to trust them on the very hot day with repeated 120-50 full-force braking. i was braking at about 80-90% the whole day.

 

track the fd!

 

Man these vids are awesome. Your thread is inspiring, makes me slightly think about tracking mine lol. Lovin that EFR setup tho, lookin to do the same thing sometime next year or so.

 

thanks RX7_SE. the EFR turbo setup is great. best of all, it's SIMPLE.

i'm glad you're inspired. i've had 5 very good track experiences in this FD so far, and i'm starting to convince people that if you "do it right" with rotaries, they're actually MORE reliable on a racetrack than the piston engine cars. you just gotta control that damn exhaust heat and make sure the tuning is solid.

 

another no-so-exciting update:

i decided to change up my intercooler/intake setup. the rx7store VMIC kit is not working with my turblown EFR low mount turbo setup. i have been running the air filter directly on the turbo, and it needs fresh air. it works great for stock twins or for single turbo cars that have the turbo mounted up high. this intercooler could also be used in a FMIC configuration and work pretty well.

i just bought this chinese intercooler and i'm waiting for it to come in the mail:



i'm basically getting a 6" narrower intercooler so i can run my turbo intake down into the V.

aaaaand it didn't come in the mail saturday like tracking said it would, so here's the current state of my engine bay (and yeah, my 4" intake tube is about 3" too short --that's what she said):

 

i also wanted to do something about the glaring hole in my stereo area, which i have been covering with my tablet via VELCRO, which is unacceptable:



i cut this out of a big piece of 1/16th aluminum i got on amazon:




holes marked:


holes marked correctly:




cartmill machine shop has officially transcended to the level of COUNTERSINKING BOLT HOLES:





here's the finished piece:




and here's my roommate wearing it as a hat:





finished product inside the car:

 

ALSO, to get in and out of my car i put my hand on the door jamb and it makes it much easier. it's not so easy when your hand slips, so i installed some grip tape on the door jamb:

 

Good stuff. I did a back to back with an evo8 years ago and pickup 21rwhp with a 4 inch ambient air intake over a 3 inch hot air intake. This was with a fmic at 22psi.. I think it was like 500rwhp maybe ?

 

Nice! Most people don't realize how important cool air is to a turbo; a small increase in compressor inlet temperature results in a relatively large increase in compressor outlet temperature. Still, it's an awkward compromise to have to make. "Hmm, I need to lower my IAT's... smaller intercooler! Wait what?"

 

I have that same core I believe. I'm impressed with the quality, especially for the money. I had the rx7store vmount as well before this and I would say the quality of this is on par, the welds are definitely better. However I cannot provide usable feedback as my car has been down a while.

 

thanks guys,

yeah i am sure the CAI will make a big difference. although the next track event isnt until october, so it wont matter quite as much

another update:

it seems that my car has gained some camber on the passenger side. when i got my alignment last time the passenger front lower control arm FLCA cam bolts were not tight. they weren't exactly finger-loose, but they weren't tight... so we did the alignment anyway. it looks like the aligment changed again:

driver side:


passenger side:


so i just ordered new bolts/nuts from ray crowe:
the Bolt/cam is FDY9346AZ
the Lock nut is B00139037B



ALSO, i got some free used tires from a guy at work who has a 370z nasa TT race car (285/30/18):
they are toyo R888 that were shaved when new, then had one session put on them, so they're at about 50%. i think this will be substantially faster than my RE-11s, which are almost out of tread. the best part is the r888s are FREE.

 

did some more work tonight. intercooler finally came in.









this is as close as i could get without having to have pipes welded.







i'll be tackling the ducting the next few days

 

Can you take a pic of the inside fin structure please?