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FC RX7 5.0 race car thread
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update!
Crazy times, I've hardly been able to work on the car lately. But got a 12 hr day in on it today so theres some progress.
Before that though I went to the ricer store with some friends. When in Rome...
Got some plug like thingys for the steering rack to keep dust out, also have some grease nipples to weld/drill into the other line caps so I can grease the rack down the road.
By the way, I broke that stupid wire clip that holds the end of the steering rack on. The one that you have to spin out, anyone know where to get a new one? Dealer can't get them, even for a Miata. Edit: no luck at anywhere, found some wire that fit and made one
Also got this welded all strong, my buddy said it was horrible to do. I soaked it in cleaner and heated it up but not quite hot as did he when he tig'd it; but there was still oils in it, which happens after steel has spent the better part of 20 years living in power steering fluid. Its strong, no one will see it (except everyone because this is the internet) so I'm happy with it.
And the best news is, I finally have some cage work happening! my buddy has been even busier than me so its been hard to find time to use his welder and skills.
I found this awesome coping calculator site (link) which makes coping so easy and cool. You basically enter your pipe dimensions and the angle your putting them together, print out the little template it gives you, cut it out, wrap it around the pipe (leave extra on the wrap ends to ensure its on the pipe straight) mark it and cut! I used a grinder with a cut off wheel and another with a flap disc. Takes some time but works well.
I made a bunch to template (and practice) so I have an idea before I cut the real deal.
Works really good with some technique and patience, basically all the shape requires is a cut from either side, and a bit of shaping/smoothing.
So I had my buddy do a trial piece or two to get an idea for power settings on his welder, tell me what you guys think, will we have issues with passing tech with these welds?
And finally some cage in the car, man this stuff is time consuming to do.
And the big news; I bought a motor assembly! I went to a yard that specializes in jeeps and mustangs, he had a 95 gt that looks like it smacked a curb good or something, bunch of BBK pieces on it, hadn't been pilaged yet. So I bought the whole engine, trans, all wiring, ECU, pedal assembly (long story), and everything currently attached to it. It should be able to pick it all up late next week, will update when that happens.
This is great because my welder buddy wants my T5, he can have his fox motor back, and I was basically using mostly Sn95 stuff anyway. And apparently the ECU's have better processors.
Winter is in full swing around here. The weather tooLast edited by Teeson1111; 03-12-2014, 07:30 PM.
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Update!
Started the de-powering of the steering rack, amidst helping a buddy do brakes on his Integra.
So first clean the mess my dad had left for me (well some of its mine) so I'd have somewhere to work
Before:
After: (sorry for blurries)
Then with my OCD taken care of, yank the the rack out of the car
Take it all apart, holy cow were those tie rod ends on there. Same goes for the pin at the top of the column.
It was also really grimy, so took care of that.
Then I bathed the piece I'm going to try and weld to prevent slop. It's been in an oily environment so long theres a good chance the weld will be full of porosity.
Had to modify my bucket a little, which resulted in a mess on the counter :roll eyes
While I was busy cleaning things I pressure washed my T5, I should have taken a before shot. The bellhouse was at least a cm thick in grime, I couldn't touch any of it without getting my hands black. Fixed
Then the scary part. Cutting off the seal without damaging anything else. Came out fine, no collateral
While I wait for my buddy to have time to weld the steering column I continued chassis prep. Cut off and grinded away remnants of the seat mounts.
thats all for today.
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Originally posted by sawatsky View PostI'm so jealous. V8 fc is my dream car. I hope to see jdm tails at some point as well.
God Bless dude
Originally posted by FunfGang View PostLet's be friends.
And I got the whole day off work tomorrow, so I should get some stuff done.
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I'm so jealous. V8 fc is my dream car. I hope to see jdm tails at some point as well.
God Bless dude
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Originally posted by LaMaR- View PostCool build I can't wait to see the updates. Btw I have a 5.0 fc as well lol and the hood doesn't clear on mine. Are you building custom mounts or are they the granny's kit?
I'm going to be using a Sn95 intake manifold, they sit considerably lower than any other manifold. Disty will probably be a marine cap on a standard EFI disty. I'm expecting to have to trim the inside of the hood. I have seen this done successfully before, but when I want real power, im probably going to have to cut a hole :/
you have any pics or a build thread? I'd love to give it a read
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Cool build I can't wait to see the updates. Btw I have a 5.0 fc as well lol and the hood doesn't clear on mine. Are you building custom mounts or are they the granny's kit?
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Originally posted by axelillo_PR View PostI saw your probe thread and I saw your below your sig the rx7 5.0 and got giddy and this is much better than expected
Originally posted by Nick475 View Postmy hero <3
small and disappointing update:
My buddy (who's doing my welding) had his jeep blow out its rear caliper in the middle of last night. So fixing that bascially took all morning, which left about all of 3 hours to get started on the cage. Not a lot done, gonna go at it again in the evenings. i'll update when fun stuff has happened
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I saw your probe thread and I saw your below your sig the rx7 5.0 and got giddy and this is much better than expected
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FC RX7 5.0 race car thread
1987 RX7 and its getting a V8.
*Disclaimers:* Rotards, leave your harsh opinions at home. Love the rotaries, but this is not a rotary car anymore. Constructive thoughts are welcome, slander is not; I suck at taking pictures; I have no money but a lot of time; I wanna go drifting real bad.
I told my self I wouldn't start a build thread until something actually interesting happened, and well tomorrow we start the cage.
So around a year ago my parents left town for the weekend. This normally means I buy a car (lol is kinda a coindence, but its happened multiple times) I found it on craigslist, got it for $450. The kid thought it needed a transmission and/or a clutch. I got it home to figure out that the slave was seeping and the clutch was out of fluid. If i had spotted that earlier I probably could've driven it home.
Car was in great shape, needed some TLC, however the awful stereo install had to go asap. I hit my knee on those stupid door pods every time I got in and out.
I believe its a GXL, it has the turbo brakes, a clutch LSD, power steering, power everything else, even A/C (which didn't work)
Drove it for a bit and decided rotary was not for me. I love the idea of them, and in my head it should work better than pistons. Then when it wouldn't idle for more than 30 seconds at a time, and I decided to not invest any more energy into and look into other options. I wanted something easy, cheap and readily available. I did want to keep it mazda, or at least japanese. However I went parts shopping with my buddy who has a 5.0 fox mustang. Parts are dirt cheap, and I mean stupid cheap for the horsepower you get. They are also everywhere, and there are a lot of people who wrap them around trees, so parts where cheap and readily available. After a bit of research I learned doing the 302 swap would be laughably easy. I've yet to hear of a simpler cross-make engine swap. So the hunt began!
Sold the old engine/tranny for near what I paid for the car, to a guy going to put it in a Datsun 510! (sick!)
This is where I made a slight mistake. Well even before that. I should have just driven it as is and make it work, start doing events and upgraded as I go. But instead I just took it really far apart and had all these plans to do cool stuff. But no money. I'm now still going to do cool stuff, but lol I should have planned that better. I've owned this car way to long to only have driven once, I'm barely familiar with it.
/rant
Stripped it right down
Sold stuff, threw a lot more out (interior was in rough shape)
found some change
kept the good bits
Then stripped it down even further
I have my buddies old mustang motor that needs head gaskets (or we hope thats all it needs). He built a 306 designated for turbo fox body awesomeness.
Scored a T5 for $180! its even a word class rated for 225 ft-lbs. Got a swap kit on ebay for half price of a new one, and it even came with the aluminum driveshaft option!
Bought a bunch of leftover parts from various people and I now have 90% of what I need to make this work the way I want it to.
The plan is as follows:
5.0 mustang engine long block
Sn95 intake upper and lower
Explorer front accessory setup (same as Sn95)
Electric water pump (still figuring out what kind)
3rd gen alternator (this will be the only thing on a belt)
De-powered steering rack (I believe I have a 17:1 rack)
TBA clutch setup
Hydraulic clutch conversion
All new wiring
as much delrin/solid mount stuff I can get my hands on
as much Lucky 10 stuff as I can afford
stock e-brake for now
JIC coils (used but were a steal)
Dual master cylinder brake setup
rebuild the stock calipers
new pads/ rotors
Formula D/SCCA solo 2 spec cage
AN fittings e'erwhere
probably use the stock Rx7 rad, unless I find out its not enough to keep it cool
Big fat electric fan
Momo Corse drivers seat, still working on a pass seat
Crow harnessssssss
Walbro 255
NRG quick release (need some theft deterents here)
Grip royal 'Hills'
Custom gauge panels (i'll get to them in a minute)
Going to Plastidip the entire car when done, I really dislike paint and body work, this way I can make the exterior rust proof but ugly, then just dip over it. goes on like 1.5mm thick, self levelling, easy to fix and weighs maybe a pound. can't loose.
I'm forgetting some small things.
I've found the more research and planning I do the less money I spend.
Not sure on wheels yet...
Also probably going to get a Volvo lip and maybe shine skirts. Though I'd rather spend money on not body kits.
Onto today
hood will be very close, but should clear
Have a few things to fix while the welders busy
DOM is bent and ready to go
Now more on that custom gauge panel,
So what we have here is the stock radio/climate bezel that I just added some 1/4" ABS to fill the space then sanded primed and painted to look like this:
And the gauge cluster bezel got similar treatment
Probably going to dye the dash black and flock it, the blue doesn't go with anything lol
And incase anyone asks the gauges are Faria Euro. They are boat gauges, I think they look great and very different. They're fairly accurate (not auto meter or anything), much cheaper, water proof and built for shock. Still need a big 5" tach...
That's all for now, I'll try and be diligent taking pictures of the cage build tomorrow.Last edited by Teeson1111; 03-12-2014, 07:21 PM.
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