Build thread

Talk about your Rotaries!
lOOkatme
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Postby lOOkatme » Wed Feb 05, 2014 9:14

speedjunkie wrote:Yeah that's why I'm so confused. I've never posted my work email on any website and never used it to buy anything, but I have registered it with Oakley and things like that for military discounts.



I don't think they discriminate lol.



I'm getting kinda antsy about working on the car again. I'd really like to buy the new fuel pump, etc, and the coils and all that, and I'm also looking at doing hard lines for the fuel rails, turbo coolant and possibly turbo oil. I even thought of doing them for the oil coolers.


If you get too ansy, perhaps we can do hard lines on my car:p

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RX-7 Chris
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Postby RX-7 Chris » Wed Feb 05, 2014 9:14

you need to be able to have some flex in the lines that go from the motor/tranny and the body/frame.
1984 RX-7 GSL-SE [size=84]My restomod project[/SIZE]


1964 Ford Galaxie 500XL flat black w/ white interior, 2 dr fastback, 390 thunderbird, C6 auto, 2500 rpm high stall converter, shift kit, AC, Holley 750 cfm

[size=100]RIP 1983 RX-7[/SIZE]

My Car Blog

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speedjunkie
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Postby speedjunkie » Thu Feb 06, 2014 9:14

lOOkatme wrote:If you get too ansy, perhaps we can do hard lines on my car:p


May as well knock them out all at once lol.

RX-7 Chris wrote:you need to be able to have some flex in the lines that go from the motor/tranny and the body/frame.


Yeah I know. I've just been trying to decide how to do that. Whether to add a small section of braided line from the lines coming from the rear to the ones on the engine or what. And actually, I've thought about even doing the lines all the way from the rear too, in a larger size. Another guy did it on his FD and they came out gorgeous. Eventually I'd like to do all this. Not sure how soon it would be.
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Shadowden
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Postby Shadowden » Thu Feb 06, 2014 9:14

speedjunkie wrote:Yeah that's why I'm so confused. I've never posted my work email on any website and never used it to buy anything, but I have registered it with Oakley and things like that for military discounts.



I don't think they discriminate lol.



I'm getting kinda antsy about working on the car again. I'd really like to buy the new fuel pump, etc, and the coils and all that, and I'm also looking at doing hard lines for the fuel rails, turbo coolant and possibly turbo oil. I even thought of doing them for the oil coolers.


Add: "Help Shadow roll his fenders" to your list.

Learjet45
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Postby Learjet45 » Thu Feb 06, 2014 9:14

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[color="Blue"]2008 Subaru Legacy 2.5i PZEV - Current Ride, 100% stock[/color]
[color="Gray"]2005 Mazda 6i Pebble Ash Metallic - Dead[/color]

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RX-7 Chris
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Postby RX-7 Chris » Thu Feb 06, 2014 9:14

speedjunkie wrote:Yeah I know. I've just been trying to decide how to do that. Whether to add a small section of braided line from the lines coming from the rear to the ones on the engine or what. And actually, I've thought about even doing the lines all the way from the rear too, in a larger size. Another guy did it on his FD and they came out gorgeous. Eventually I'd like to do all this. Not sure how soon it would be.


I replaced the feed line in the black car all the way from the rear. I used 3/8" SS line. It was a real pain because of how stiff the SS line is. SS was hard to even bend, but it was really hard to get the flare on the ends.

I would recommend a good quality tubing bender and flare tool.
Something line this:
http://www.eastwood.com/tubing-bender-and-forming-pliers-kit.html

I used this flaring tool and had a lot of trouble with it on the stainless steel lines:
http://www.eastwood.com/tubing-bender-and-forming-pliers-kit.html

There isn't really a better without spending a ton of money. The cheaper one should be fine with standard fuel line.
1984 RX-7 GSL-SE [size=84]My restomod project[/SIZE]


1964 Ford Galaxie 500XL flat black w/ white interior, 2 dr fastback, 390 thunderbird, C6 auto, 2500 rpm high stall converter, shift kit, AC, Holley 750 cfm

[size=100]RIP 1983 RX-7[/SIZE]

My Car Blog

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D Walker
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Postby D Walker » Thu Feb 06, 2014 9:14

I use aluminum lines for replacement hard lines, and on the e-85 FC it was a 1/2" feed and return line setup. Easy to work with assuming you get the right benders and flare tools, and the B-nuts are not expensive. I have used SS tubing before but it tends to easily work harden when flared by hand tools and can lead to cracks in the flare area if your not careful. A 25ft roll of 1/2" aluminum fuel line at On-track- usually in stock- is less that 40 bucks.
1986 Turbo FC race car, S6 13b, GOOPY Apex seals etc, GT35R, AEM EMS, lots more good stuff

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speedjunkie
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Postby speedjunkie » Fri Feb 07, 2014 9:14

Shadowden wrote:Add: "Help Shadow roll his fenders" to your list.


Oh yeah, lol.



It sure is. Import Tuner put that up on their page asking people if they should change Mazda Mondays to Mitsubishi Mondays. I had to choose Mazda of course lol.

RX-7 Chris wrote:I replaced the feed line in the black car all the way from the rear. I used 3/8" SS line. It was a real pain because of how stiff the SS line is. SS was hard to even bend, but it was really hard to get the flare on the ends.

I would recommend a good quality tubing bender and flare tool.
Something line this:
http://www.eastwood.com/tubing-bender-and-forming-pliers-kit.html

I used this flaring tool and had a lot of trouble with it on the stainless steel lines:
http://www.eastwood.com/tubing-bender-and-forming-pliers-kit.html

There isn't really a better without spending a ton of money. The cheaper one should be fine with standard fuel line.


Thanks for the links! The other guy that did his line from the back used 3/8" as well, but I don't remember if he used aluminum or SS. The cool thing is the 3/8" still fit in the stock holders that are mounted on the bottom of the car.

Actually now that I think of it, I think we have tubing benders at work. WOOHOO!! I love having high quality tools to use for free lol.

D Walker wrote:I use aluminum lines for replacement hard lines, and on the e-85 FC it was a 1/2" feed and return line setup. Easy to work with assuming you get the right benders and flare tools, and the B-nuts are not expensive. I have used SS tubing before but it tends to easily work harden when flared by hand tools and can lead to cracks in the flare area if your not careful. A 25ft roll of 1/2" aluminum fuel line at On-track- usually in stock- is less that 40 bucks.


I like the thought of using aluminum lines all over if they're easier to work with, but if you use them along the bottom of the car, would they be more susceptible to damage from road debris than SS lines? Although I could build some sort of bracket to go over them to block the debris.

The other guy I'm talking about is switching to E85 also and he's only using 3/8", so I figure that should be enough for pump fuel. Along with doing the lines I'm probably going to get a whole new fuel pump hanger, maybe from CJ Motorsports since the connectors will be AN fittings anyway, and it would come with a new connector anyway that will hopefully be good enough for the extra amperage without burning up. I've also wondered about a surge tank or at least trying to do something like the Hyperion modification on top of the plastic baffling already in the tank.
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speedjunkie
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Postby speedjunkie » Wed Feb 12, 2014 9:14

I've been doing some research on the next round of upgrades I'm trying to do. Since I'd feel uncomfortable using my current fuel setup with an upgraded ignition system (AEM IGN-1A coils), and since I'm concerned about fuel slosh, I've decided to get a tank-in-tank surge tank system developed by HPP, the same guys that made my diff brace/cradle. It's a tank that sits next to the pump hanger and collects the unused fuel returned by the return line, and also takes in fuel from the tank when you're running WOT or whatever, and it pumps that fuel directly into the fuel pump. In addition to that, I'm going to get a Bosch 044 pump until the new Bosch/Paul Yaw pump comes out. The 044 has been known to support up to around 550whp that I've seen on a friend's dyno sheet, so I'm not too worried about it running out on me. I will also get rid of the Kenne Bell BAP to simplify the fuel system. At the moment I'll probably just rig the stock hanger to accept the Bosch pump and then when the new pump comes out and is proven, I'll try to get CJ Motorsports to make a single pump hanger for me. The only problem is I want to upgrade the wiring and connector for this setup, but I don't want to do a bunch of extra work to the stock hanger, so maybe I'll see if CJM can make me a hanger now.

For the ignition system, I'm trying to decide where to mount the new coils. I was thinking of putting them in the stock location, but I'm not sure if they'll be small enough to fit there when stacked. Or I could maybe stand them on their sides, who knows.
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RX-7 Chris
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Postby RX-7 Chris » Wed Feb 12, 2014 9:14

what does the tank-in-tank surge tank system really do for you?
1984 RX-7 GSL-SE [size=84]My restomod project[/SIZE]


1964 Ford Galaxie 500XL flat black w/ white interior, 2 dr fastback, 390 thunderbird, C6 auto, 2500 rpm high stall converter, shift kit, AC, Holley 750 cfm

[size=100]RIP 1983 RX-7[/SIZE]

My Car Blog

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Shadowden
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Postby Shadowden » Wed Feb 12, 2014 9:14

RX-7 Chris wrote:what does the tank-in-tank surge tank system really do for you?


I could be completely wrong, but it sounds like fuel would actively be stored in the smaller tank and would therefore provide a constant head of fuel to the fuel pump. This would create more consistent fuel delivery. Again, pure specualtion on my part.

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speedjunkie
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Postby speedjunkie » Wed Feb 12, 2014 9:14

RX-7 Chris wrote:what does the tank-in-tank surge tank system really do for you?


Shadowden wrote:I could be completely wrong, but it sounds like fuel would actively be stored in the smaller tank and would therefore provide a constant head of fuel to the fuel pump. This would create more consistent fuel delivery. Again, pure specualtion on my part.


Exactly. It's a smaller area so the fuel doesn't slosh away from the pump.
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RX-7 Chris
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Postby RX-7 Chris » Thu Feb 13, 2014 9:14

your tank doesn't have baffles?
1984 RX-7 GSL-SE [size=84]My restomod project[/SIZE]


1964 Ford Galaxie 500XL flat black w/ white interior, 2 dr fastback, 390 thunderbird, C6 auto, 2500 rpm high stall converter, shift kit, AC, Holley 750 cfm

[size=100]RIP 1983 RX-7[/SIZE]

My Car Blog

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speedjunkie
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Postby speedjunkie » Thu Feb 13, 2014 9:14

It has a little plastic bowl type thing around the fuel pump that really doesn't do much when taking long sweepers. A lot of FD guys have had problems with fuel slosh, and although I don't believe I've ever had a problem with it, I'd rather address the issue before it comes up.

Now I'm trying to decide if I want a CJ Motorsports fuel pump hanger for $300+, or just get a better bulkhead wiring harness that can handle the extra amperage/power (linked below) and use a clamp from Frozen Boost here in town (also linked below) and modify the stock hanger for now. I'd still like to get some fuel approved rubber to use as a shock absorber to go around the fuel pump too. Chances are I'll never upgrade to two pumps so I won't need the dual hanger, which is all that CJM makes. But if I ever decide to go for more power, then I'll get that hanger and do dual pumps and run larger hard line all the way from the tank to the engine.

http://www.racetronix.biz/itemdesc.asp?ic=BCWS-001&eq=&Tp=

http://www.siliconeintakes.com/product_info.php?products_id=712
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RX-7 Chris
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Postby RX-7 Chris » Fri Feb 14, 2014 9:14

speedjunkie wrote:It has a little plastic bowl type thing around the fuel pump that really doesn't do much when taking long sweepers. A lot of FD guys have had problems with fuel slosh, and although I don't believe I've ever had a problem with it, I'd rather address the issue before it comes up.


I would have never thought that was all it had. My SE has a full set of added metal baffles plus a cup around the pickup. It was something they only put in the SE tanks, none of the other first gens have it. It also has an external pump like all other SA/FB's but they upgraded the pickup and line to the pump to a 1/2".
1984 RX-7 GSL-SE [size=84]My restomod project[/SIZE]


1964 Ford Galaxie 500XL flat black w/ white interior, 2 dr fastback, 390 thunderbird, C6 auto, 2500 rpm high stall converter, shift kit, AC, Holley 750 cfm

[size=100]RIP 1983 RX-7[/SIZE]

My Car Blog


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