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Gibbon's suspiciously affordable FD RX7


gibbon

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I looked through the Japanese auction sites for a while, always amazing how every FD was just loaded with aftermarket doohickies. definitely loved by their owners, for better or worse 

Trying to work out what kit is on it, I haven't seen another like it. It was fitted in Japan so it's JDM spec yo, but there's hundreds of kits available so quite hard to pin down 

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Well it's partially because FDs are so well supported by the aftermarket, there are at least 15 variants of any type of bolt on you can think of, so it's ridiculously easy to buy for.

Kit looks like an early Mazdaspeed kit, with a Jun bonnet?

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2 hours ago, tomble said:

Love it, I'll live through you and Zac for the time being. What's with Starion people migrating to FD's?

How can a man own the most cherished sports car, without first owning the least cherished sports car?

Be the Alpha and the Omega, tomble-san [TAOIST NOISES INTENSIFY]

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On 29/10/2024 at 15:32, Dell'orto said:

Well it's partially because FDs are so well supported by the aftermarket, there are at least 15 variants of any type of bolt on you can think of, so it's ridiculously easy to buy for.

Kit looks like an early Mazdaspeed kit, with a Jun bonnet?

definitely nailed the Jun bonnet, still can't find a Mazdaspeed kit that looks like it. there's a "15 year anniversary kit" that has some design similarities like a cutout around the fuel filler, like it might have been done by the same guys? Not ruling out it's a mishmash of different kits, but I still haven't seen that exact filler cutout or that exact "stepside" front fender on any of the gazillion bodykitted rx7s google could muster up

gawd there's a lot of absolutely horrid kits for these cars out there. judge mine how you will, I'd say I got off lightly

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From my experience with rear over fenders if it looks good leave it alone. The shitty jobs I’ve seen here and from Japan are shocking and If it’s really wide it will need new inner and outer guards. I imported a ex show car from a big rx7 company and the rear guards had been cut every 3 cm around the wheel opening and folded up and rivited to the gaurd. Then had fiberglass poured in to fill holes

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30 minutes ago, Early jap nuter said:

From my experience with rear over fenders if it looks good leave it alone. The shitty jobs I’ve seen here and from Japan are shocking and If it’s really wide it will need new inner and outer guards. I imported a ex show car from a big rx7 company and the rear guards had been cut every 3 cm around the wheel opening and folded up and rivited to the gaurd. Then had fiberglass poured in to fill holes

I popped my head under there this morning and couldn't quite make sense of it to be honest, I couldnt see or feel any sharp edges, or see any hardware holding the whole thing together. I think you might be right in that the remnants of the original guards might have been flared out into the lip of the larger guards but I can't see any cuts. Everything is covered in underseal, they've done a reasonable job of not making it look like it's just been slapped over the top. I'd say it's around a 50mm flare

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On 25/10/2024 at 22:41, gibbon said:

 

It's got an Apexi power FC (with a hand controller - for when I want to press some buttons and make it explode?)

 

be careful if has a power fc ecu.   (every 2nd fd seems to have one)     most of them seem to be running around on the base map which runs them ok.   but said base map has super aggressive ignition map  that is a bad day on our crappy pump gas.  

 

 

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2 hours ago, kpr said:

be careful if has a power fc ecu.   (every 2nd fd seems to have one)     most of them seem to be running around on the base map which runs them ok.   but said base map has super aggressive ignition map  that is a bad day on our crappy pump gas.  

 

 

I was actually going to shoot you a PM one day to see how you felt about tuning one. I have no idea if it's tuned for the air pump installed or not etc

are there any telltales that it's still on the base tune? 

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If you are going to keep the car for any period of time, ditch the apexi. they are at best just a piggyback and as KPR said, you have to know what you are doing with them otherwise you're gunna have a bad time and generally not a cheap one

grab a plug n play link, ( if you go this route, ensure you rewire the fuel pump wiring from factory as this is a known issue - actually just put it on your list to do for decent insurance anyway ). or a microtech and do the job properly.  

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1 hour ago, 440bbm said:

If you are going to keep the car for any period of time, ditch the apexi. they are at best just a piggyback and as KPR said, you have to know what you are doing with them otherwise you're gunna have a bad time and generally not a cheap one

grab a plug n play link, ( if you go this route, ensure you rewire the fuel pump wiring from factory as this is a known issue - actually just put it on your list to do for decent insurance anyway ). or a microtech and do the job properly.  

bummer that the link pnp doesnt support the sequential turbos for some strange reason (maybe they just figured everyone would be ditching them?)

edit: microtech's loom adapter doesn't support sequentials either.... what's the difficulty? 

I'm not really sure why this thing has a FC anyway, it's pretty mild

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they dont ?  shit thats cray. 

the whole reason most ditch the sequentials from what I can recall was the massive birds nest of vaccum lines between the block and the inlet manifold, go hard and brittle with the heat and get a leak that are damn near impossible to find, well its not impossible, its just so much hard work to get down inbetween it all, and then after all that effort you are still stuck with sequentials that are going to coninue to give you greif unless you replace ALL the hoses, at that distance travelled, over 80kms they become the gift that keeps giving, so easier and best to just ditch them. 

If you gotta go for cert anyway, you may as well do that first since it wouldnt surpise me if changing to single means power increase or some shit - dunno but pay to check. 

the apexi was a common relatively cheap addition to get more power from stock. remember their hayday was so long ago now aftermarket ecus were so expensive.  i cannot remember exactly now but if you changed something, like the air filter box, or something in the exhaust the cheapest way around it was the apexi. sorry its vague but cant remember now - been a long time ago now.

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lols there you go, i was trying to find the pics of it all but looks like they mustve been on an old phone that never came through.  while that image shows the layour and where they go, being semi exploded doesnt give a true represenation of how tight it is all together and how difficult it is to actually work around and tell whats what in the car 

 

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You can use a link or Haltech to control the factory turbo setup but not out of the box (not sure if plugin will work might need wire in)

Might require checking if the plugin has pinouts to the factory wiring for those controls ( https://linkecu.com/documentation/RX7S7X.pdf )

https://forums.linkecu.com/topic/6884-rx-7-sequential-twins/

Talk about similar on the 2JZ

https://forums.linkecu.com/blogs/entry/1-how-to-get-factory-turbos-working-sequentially-with-link-ecus/

Would be a lot of effort, and like I said earlier moving to a more modern single turbo (similar power numbers) would make more sense ;)

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45 minutes ago, Nominal said:

Lol

vacuum_hose_diagram2_zpsxlzt3z1d.JPG

 

I assume you have looked through @ProZac's thread.

 

huh, somehow I completely missed that Zac had an FD... I thought he had an FC at one stage? Geez even tomble mentioned it a few posts back, whoops

anyway looks like he's done all the hard work for me. going to have a read now. Zac and I are starion folk rather than regular folk, so it stands to reason that we both want to keep the twin turbos for the sake of absurdity. my ambitions are somewhat more humble however due to ability/tooling/sobriety shortcomings

as for the rat's nest, the hoses have been replaced somewhat recently by the looks of it so someone's already done the hard work

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Have tuned a couple of fd's  with power fc,    both had single  turbo swaps.  one had a stock engine with a pulsar 6262 (g35)    the other one had an older gt series of similar size with with a rebuilt engine with some mild porting.    both made low to mid 200kw at wheels on low boost.   the one with the pulsar turbo  was more responsive and came on bit sooner.  but both had a stack of midrange and good off the bottom, nice to drive for street cars

Anyway,   power fc is getting pretty old tech now and fairly basic.   but for something like above they are fine.   anymore power  i would look at something newer like a link.  as they arent amazing with bigger injectors, have to fudge the deadtimes and stuff to tune the low load and idle stuff and you are putting your trust in some old electronics,   The  idle control has a mind of its own also.   Need a datalog it or similar to tune them properly,  hand controller is just for small adjustments and a pitta to tune with.  
I would avoid a microtech also, cant say ive tuned one myself  but have heard stories from other tuners  and are old tech now also 

I dont think the air pump would effect anything tune wise

Edit;  Also if you wanted me to tune it.  you'd have to deal with me moaning about the power fc and to buy a link

 

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