Rotary Car Club
Page 5 of 7 « First 234 5 67
Show 40 post(s) from this thread on one page

Rotary Car Club (https://rotarycarclub.com/index.php)
-   Show your rotary car build up. (https://rotarycarclub.com/forumdisplay.php?f=66)
-   -   FC Zach's '87 Sport (https://rotarycarclub.com/showthread.php?t=18618)

infernosg 06-10-2016 02:02 PM
Quote:
Originally Posted by TitaniumTT (Post 331588)
Negative... it works the opposite way. Removing the weatherstripping allows ambient air to get forced INTO the bay. Common misconception especially among the hondah crowd. At speed, the joint between the hood and the windshield is a high pressure area, removing the weatherstripping allows air to get forced into the bay. It then follows the path of least resistance and gets pulled through the tranny tunnel.

Stationary, sure, heat is going to rise so those ridiculous 2" gaps with spacers they add will relieve some of the heat from the bay because heat rises. However, as said before, at speed it's forcing air into the bay.

A vented hood on the other hand works in the opposite way. Assuming basic aeronautics are followed, the rise in the hood will create a bit of a low pressure zone and pull air from the bay. Of course this isn't the case on my car because the hood is ducted straight to the intercooler. The only purpose my drop vent hood serves is to keep the intercooler as chill as possible.

Last time I was @ LRP with the FC the ambient temps were about 104*. My charge temps of course were in the 300's, IAT's were about 120. Something something ram air something something vented hood something something expensive core.

Also of note.... my radiator fan literally broke to pieces that day... ripped it out (again literally with my bare hands and no tools) and got back on the track... coolant temps never got above 180* when it was 104* outside and tracking the car :D Aero can be fun!
Makes perfect sense to me (engineer). I'm familiar with cowl induction but for whatever reason I didn't put 2 & 2 together. My vented hood is arranged in a similar manner with the radiator and shroud except they're not connect at the moment. I just have the shroud exit pointed in the direction of the hole in the hood.

Quote:
Originally Posted by FC Zach (Post 331624)
I have to disagree somewhat with the illustration mainly in the rear bumper area. .

For example if one was to have shitty taillight seals, wouldn't exhaust pull into the car like any other vehicle. Like mine does LOL
Yeah, that part confuses me. I've owned a lot of hatchbacks and SUV's and the rear window/hatch always gets covered crap. Vortices coming off the sharp corner tend to curl the air back around. I don't have bad taillight seals but is it possible the fumes are only entering when the car is stationary?

almoststockfc 06-10-2016 06:21 PM
No spoiler in the illustration

FC Zach 06-10-2016 06:28 PM
That makes a difference but I'm trying to remember if Robert's 7 had a spoiler, he had bad exhaust flow in his car too.

RETed 06-10-2016 08:57 PM
Quote:
Originally Posted by FC Zach (Post 331624)
I have to disagree somewhat with the illustration mainly in the rear bumper area. .

For example if one was to have shitty taillight seals, wouldn't exhaust pull into the car like any other vehicle. Like mine does LOL
It's pulls it in from the side rather than the rear...


-Ted

FC Zach 06-10-2016 09:14 PM
I learned a couple things today, mind blown about where the high and low volume areas are contrary to where I believed they were.

FC Zach 03-02-2017 02:33 AM
Latest mods for fighting heat with hopes of reducing intake air temps.

With extra wrap I had laying around, I wrapped exposed tubing.
https://c1.staticflickr.com/1/701/32...5f9aabb0_c.jpg

Installed a heat shield for the intake manifold.
https://c1.staticflickr.com/4/3722/3...18eb82c4_c.jpg

I haven't tested for any change but really at this point I'm not worried about it as I've already seen all the results I need to see.

FC Zach 03-02-2017 03:09 AM
This weekend I plan to install a new clutch and a rebuilt TII transmission :)

Years ago I was sold on the Centerforce Dual Friction clutches, I had this clutch in both my 7 and 6th gen Celica. Years pass and I find I really don't care for it as much as I thought I did, time for improvement.

EXEDY Racing Stage 2 (10952A)
https://c1.staticflickr.com/1/749/33...df3cd321_c.jpg

Before fuel injection and no rev limiter, I stupidly reved the piss out of my 7. . Ignoring all safety concerns, I drove like this for years and killed about 3 transmissions in the process. I admit it was dumb and because transmissions don't grow on trees, I now have a rev limiter :) (and luckily still have feet/legs)

Here's an old video


Because of that kind of abuse, I was on my second TII trans. The first was had a seized fifth/reverse clutch hub as well as broken synchros. The second one that is in the car now is just bad synchros (I hope). I plan to rebuilt this one since it's a JDM S5 TII.

Until then, I'll be rocking this rebuilt S4 TII and keeping it as a good back-up for me or for anyone else.
https://c1.staticflickr.com/3/2913/3...95f1689c_c.jpg

FC Zach 03-02-2017 03:18 AM
Since I'm beyond the EFI phase and have shared more, can a mod update the thread title to: "FC Zach's '87 Sport"?

almoststockfc 03-02-2017 07:19 AM
Quote:
Originally Posted by FC Zach (Post 340195)
. Ignoring all safety concerns, I drove like this for years and killed about 3 transmissions in the process. I admit it was dumb and because transmissions don't grow on trees, I now have a rev limiter :) (and luckily still have feet/legs)
I was more concerned about the 7 ft flames that were coming out from under the car when we took that video.

FC Zach 03-02-2017 07:38 AM
Man, that was deafening LOUD! ! The video doesn't do it justice!

t_g_farrell 03-02-2017 08:48 AM
I kind of miss the old Zach, the pre-girl friend Zach whose FC would make my eyes water just idling.

Amazing how far you and the car have come in the last few years. Almost respectable. LOL

FC Zach 03-02-2017 09:21 AM
Quote:
Originally Posted by t_g_farrell (Post 340202)
Almost respectable. LOL
Thanks Ted ;)

FC Zach 03-02-2017 09:28 AM
But seriously though, thanks Tim! I'll trade you cart rides for beer at DGRR. . :)

TitaniumTT 03-02-2017 10:13 AM
Quote:
Originally Posted by FC Zach (Post 340195)
This weekend I plan to install a new clutch and a rebuilt TII transmission :)

Years ago I was sold on the Centerforce Dual Friction clutches, I had this clutch in both my 7 and 6th gen Celica. Years pass and I find I really don't care for it as much as I thought I did, time for improvement.

EXEDY Racing Stage 2 (10952A)
:icon_tup: Never liked the centerforces. Exploded one on the dyno, had an ITS car kill one in one day, and in my FC it lasted a year n/a.... do GOOD CHOICE!

Quote:
Originally Posted by FC Zach (Post 340195)
Before fuel injection and no rev limiter, I stupidly reved the piss out of my 7. . Ignoring all safety concerns, I drove like this for years and killed about 3 transmissions in the process. I admit it was dumb and because transmissions don't grow on trees, I now have a rev limiter :) (and luckily still have feet/legs)

Here's an old video


Because of that kind of abuse, I was on my second TII trans. The first was had a seized fifth/reverse clutch hub as well as broken synchros. The second one that is in the car now is just bad synchros (I hope). I plan to rebuilt this one since it's a JDM S5 TII.

Until then, I'll be rocking this rebuilt S4 TII and keeping it as a good back-up for me or for anyone else.com/3/2913/32383907603_2b95f1689c_c.jpg[/img]
Good lord! I've broken a few renni trans but never a TII tranny. Damn man, that's some ABUSE!

Quote:
Originally Posted by FC Zach (Post 340196)
Since I'm beyond the EFI phase and have shared more, can a mod update the thread title to: "FC Zach's '87 Sport"?
:kiss:

FC Zach 03-02-2017 10:59 AM
Thanks Brian!

FC Zach 03-02-2017 11:59 PM
Quote:
Originally Posted by TitaniumTT (Post 340218)
:icon_tup: Never liked the centerforces. Exploded one on the dyno, had an ITS car kill one in one day, and in my FC it lasted a year n/a.... do GOOD CHOICE!
Well, this one has served me well because that video is every indication of how I drove the car. I've had this clutch for about 10 years, definitely time for something new.

Quote:
Originally Posted by TitaniumTT (Post 340218)
Good lord! I've broken a few renni trans but never a TII tranny. Damn man, that's some ABUSE!
Yeah, it really is but not gonna happen anymore!

TitaniumTT 03-03-2017 09:34 AM
One can only hope!

Johnny_K 03-03-2017 11:02 AM
I need a new clutch for the blk FD.

Did you consider any other clutches prior to buying the exedy stage 2?

TitaniumTT 03-03-2017 11:30 AM
Exedy Twin Disc ;)

FC Zach 03-03-2017 02:03 PM
Quote:
Originally Posted by Johnny_K (Post 340354)
I need a new clutch for the blk FD.

Did you consider any other clutches prior to buying the exedy stage 2?
Not really, I have this same model in the Celica and love the pedal feel. Any other clutch (better than this) would be overkill for my needs in my opinion.

FC Zach 03-06-2017 04:48 AM
So I swapped the clutch and installed the rebuilt transmission this weekend. The Centerforce Dual Friction I removed appears to still have a lot of life left on it, is there still a market for these? I'd sell it cheap if there's any interest in it.

I am waiting on oil I ordered from my AmsOil guy and an output shaft seal from Atkins Rotary to arrive so I can button everything up. I tried getting this seal locally from Oreillys but for whatever reason neither of the manual or auto seals were correct. . :confused: They couldn't cross-reference it either but luckily Atkins pulled through :o15:
https://c1.staticflickr.com/4/3746/3...6fa25d5e_c.jpg

I had to remove the fancy coil mount kit to remove the long starter bolt and as I laid it to the side I felt something protruding from one of the coil-to-plug adapters. . here's what I found:

One of the detents for the plug weren't seated completely and the bad connection caused it to get hot enough to melt almost completely through the plastic housing.
https://c1.staticflickr.com/4/3901/3...d7230375_c.jpg

I'm no longer going to be using the COP adapters and will be replacing them with tailored wired. I'll still use the coil mount, just not as it was intended.

Since the power harness was mostly disconnected, I completely removed it with hopes of replacing it with a new harness (mine is in very rough shape). I contacted Chris Ludwig to see if he can do this, if not does anyone have any recommendations on where this can be built or purchased?

TitaniumTT 03-06-2017 02:07 PM
Quote:
Originally Posted by FC Zach (Post 340410)
So I swapped the clutch and installed the rebuilt transmission this weekend. The Centerforce Dual Friction I removed appears to still have a lot of life left on it, is there still a market for these? I'd sell it cheap if there's any interest in it.
Bring it to DGRR and wait for someone to blow a turbo clutch and sell it expensive. Of course I'll be the one looking for a clutch :rofl:

Quote:
Originally Posted by FC Zach (Post 340410)
I had to remove the fancy coil mount kit to remove the long starter bolt and as I laid it to the side I felt something protruding from one of the coil-to-plug adapters. . here's what I found:

One of the detents for the plug weren't seated completely and the bad connection caused it to get hot enough to melt almost completely through the plastic housing.

I'm no longer going to be using the COP adapters and will be replacing them with tailored wired. I'll still use the coil mount, just not as it was intended.
Ruh Roh!

Quote:
Originally Posted by FC Zach (Post 340410)
Since the power harness was mostly disconnected, I completely removed it with hopes of replacing it with a new harness (mine is in very rough shape). I contacted Chris Ludwig to see if he can do this, if not does anyone have any recommendations on where this can be built or purchased?
I responded in your Alt thread.... otherwise there's always buying a new one for like $400.... they're still available per MazdaMotorsports ;)

FC Zach 03-07-2017 12:51 AM
Quote:
Originally Posted by TitaniumTT (Post 340446)
Bring it to DGRR and wait for someone to blow a turbo clutch and sell it expensive. Of course I'll be the one looking for a clutch :rofl:
HaHa noted :)

Quote:
Originally Posted by TitaniumTT (Post 340446)
Ruh Roh!
Fixed :cheers2: I had extra MSD Super Conductor wire from previous builds but unfortunately had to scavenge from a new box for 8 boots and terminals
https://c1.staticflickr.com/3/2813/3...7428ddc2_c.jpg

Quote:
Originally Posted by TitaniumTT (Post 340446)
I responded in your Alt thread.... otherwise there's always buying a new one for like $400.... they're still available per MazdaMotorsports ;)
Sweet, thanks! that may be a better option. . . probably cheaper too. When you say "MazdaMotorsports", like a dealership?

Trans seal arrived while asleep today and oil picked up from Amsoil guy, will hopefully get this done in the morning. :biggthumpup:

Before going to sleep today I installed my shifter and ran through the gears but couldn't get it to go in fifth or reverse :Wconfused: I don't recall the engine having to be running to go in these gears. . could this simply be gears not aligned to allow the hub to slide in position? ?

TitaniumTT 03-07-2017 09:28 AM
Quote:
Originally Posted by FC Zach (Post 340461)
HaHa noted :)
;)

Quote:
Originally Posted by FC Zach (Post 340461)
Fixed :cheers2: I had extra MSD Super Conductor wire from previous builds but unfortunately had to scavenge from a new box for 8 boots and terminals
:awesome:

Too bad they didn't live longer. I would've been curious to see if they made a real world difference in power on the dyno. Ironically.... well.... was it a leading or a trailing that took a shit?

Quote:
Originally Posted by FC Zach (Post 340461)
Sweet, thanks! that may be a better option. . . probably cheaper too. When you say "MazdaMotorsports", like a dealership?
Negative, like MazdaSpeed, factory parts from shipped from Canada for dealer wholesale. Need to have legit race results though to qualify

Quote:
Originally Posted by FC Zach (Post 340461)
Trans seal arrived while asleep today and oil picked up from Amsoil guy, will hopefully get this done in the morning. :biggthumpup:

Before going to sleep today I installed my shifter and ran through the gears but couldn't get it to go in fifth or reverse :Wconfused: I don't recall the engine having to be running to go in these gears. . could this simply be gears not aligned to allow the hub to slide in position? ?
Not usually. I would drive that bitch quick in case something is fuxored with the trans. That cost me DGRR '10 was a bad rebuild on a tranny. Couldn't get 5th or 6th and then it jammed in fourth and I rage quit :(

FC Zach 03-07-2017 10:53 AM
Quote:
Originally Posted by TitaniumTT (Post 340471)
Too bad they didn't live longer. I would've been curious to see if they made a real world difference in power on the dyno. Ironically.... well.... was it a leading or a trailing that took a shit?
That one was a trailing but looking at the discoloration of the contact on another plug (L2) it appeared that it could have started on another. I'm not knocking on the design since it was retrofitted to work on a 2nd gen 13b but I'd still say some of it is design flaw.

Quote:
Originally Posted by TitaniumTT (Post 340471)
Negative, like MazdaSpeed, factory parts from shipped from Canada for dealer wholesale. Need to have legit race results though to qualify
Well, I guess this isn't an option. Thanks for getting my hopes up :(

Quote:
Originally Posted by TitaniumTT (Post 340471)
Not usually. I would drive that bitch quick in case something is fuxored with the trans. That cost me DGRR '10 was a bad rebuild on a tranny. Couldn't get 5th or 6th and then it jammed in fourth and I rage quit :(
Before going any further and completely wasting my time by reconnecting drive shaft, heat shields, exhaust. . . As well as wasting $60 in Amsoil and that damn seal I searched around for. I started it up (I did have to reinstall that janky harness though) and tried shifting with the engine idling, still no luck :( man what a last couple of days! Nothing is going right, I almost fell through the ceiling Sunday afternoon! Got a hole in the bedroom to prove it LOL. . . This too shall pass! :)

infernosg 03-07-2017 11:19 AM
Holy crap on the COP adapters! I guess it's a good thing I never worked out a mounting scheme. Hopefully this is just indicative of the "variation" of the IGN-1A coils and not Peter's work. I'll stick with my coils mounted on top of the engine for now.

FC Zach 03-07-2017 11:25 AM
I believe it is a coil issue, I had to modify the adapters to snap in place.

TitaniumTT 03-07-2017 12:43 PM
That's so unfortunate about the trans :(

Well shit, at least there's time and it's not 02:00 on Friday Morning the day before DGRR

FC Zach 03-07-2017 12:44 PM
True

FC Zach 03-07-2017 02:02 PM
Good news guys! ! I found the problem! The shifter housing spring loaded return and detent weren't assembled correctly and prevented the shifter from moving on that side. I took it apart and the lever shifted freely into both gears! It's beer thirty now! :cheers2:

So happy I don't have to remove and replace another tranny :)

TitaniumTT 03-07-2017 02:17 PM
:rofl: WOOT for easy fixes! If only my trans were that easy to fix :smilielol5:

FC Zach 03-07-2017 03:34 PM
I'm glad it was an easy fix, sure did save me a lot of headache! Now the search continues for the power harness. Oh yeah, I still gotta fix that alternator issue too.

TitaniumTT 03-07-2017 04:17 PM
I just keep laughing because I compare it to my todo list for DGRR and it's like.... :facepalm2:

RX8 - Pull engine and blah blah blah blah exhaust blah blah blah blah rear tires blah blah blah blah new windshield blah blah blah blah

RX7 - Swap rear diff blah blah blah blah swap tranny blah blah blah blah new driveshaft blah blah blah blah headlights blah blah blah blah DYNO!!!!!

djmtsu 03-07-2017 05:38 PM
Quote:
Originally Posted by TitaniumTT (Post 340513)
I just keep laughing because I compare it to my todo list for DGRR and it's like.... :facepalm2:

RX8 - Pull engine and blah blah blah blah exhaust blah blah blah blah rear tires blah blah blah blah new windshield blah blah blah blah

RX7 - Swap rear diff blah blah blah blah swap tranny blah blah blah blah new driveshaft blah blah blah blah headlights blah blah blah blah DYNO!!!!!
Every time I talk to you on the phone lately, you've been like....

Blah blah blah I'm drunk

Blah blah blah blah I'm about to get drunk

Blah blah blah herp derp I'm working on Pete's FC

Pete_89T2 03-07-2017 07:33 PM
Quote:
Originally Posted by djmtsu (Post 340515)
Every time I talk to you on the phone lately, you've been like....

Blah blah blah I'm drunk

Blah blah blah blah I'm about to get drunk

Blah blah blah herp derp I'm working on Pete's FC
:rofl: I suppose that's why he needs to be drunk!

project86 03-07-2017 09:52 PM
Quote:
Originally Posted by TitaniumTT (Post 340503)
:rofl: WOOT for easy fixes! If only my trans were that easy to fix :smilielol5:
No such things as easy fixes.

Quote:
Originally Posted by FC Zach (Post 340512)
I'm glad it was an easy fix, sure did save me a lot of headache! Now the search continues for the power harness. Oh yeah, I still gotta fix that alternator issue too.

No such things as easy fixes.


:beatdeadhorse5::beatdeadhorse5:
:beatdeadhorse5:
:beatdeadhorse5:

FC Zach 03-07-2017 11:56 PM
Quote:
Originally Posted by project86 (Post 340519)
No such things as easy fixes.


:beatdeadhorse5::beatdeadhorse5:
:beatdeadhorse5:
:beatdeadhorse5:
Ha Ha! ! In your case, NO!

TitaniumTT 03-08-2017 09:50 AM
Quote:
Originally Posted by djmtsu (Post 340515)
Every time I talk to you on the phone lately, you've been like....

Blah blah blah I'm drunk

Blah blah blah blah I'm about to get drunk

Blah blah blah herp derp I'm working on Pete's FC
Quote:
Originally Posted by Pete_89T2 (Post 340517)
:rofl: I suppose that's why he needs to be drunk!
Because Rotary or because talking to DJ :rofl:

Quote:
Originally Posted by FC Zach (Post 340524)
Ha Ha! ! In your case, NO!
I can pretty much guarantee it's an easy fix on Kyle's car. The hard part is going to be finding the problem ;)

FC Zach 03-08-2017 01:18 PM
That's what I said.

project86 03-08-2017 01:50 PM
Thats what she said.


All times are GMT -5. The time now is 10:34 AM.
Page 5 of 7 « First 234 5 67
Show 40 post(s) from this thread on one page

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Hosted by www.GotPlacement.com