Has anyone got a good thread for doing a single turbo conversion on an FD3? I have tried search but not come up with anything good yet? I am mainly after info like what blanking plates and fittings will I need. What bits of the rats nest can come of and what do I need to keep? Are there any vac lines I need to make sure I connect up to somehting and so on. Also a general idea of how best to tackle it would be great! At the mo I am going pretty blind!

Help greatly appreciated!

Thanks
Lee

 

Uhh...Wait so you dont want to read through a few threads and piece the info together, you just want somebody to come do your homework for you and post all the info in one neat page with a bow on it?

There is ENDLESS info on this subject. Hell, I bet close to 40% of fd's now days are single. Oh, did you notice there is an entire section of the forum dedicated to single turbo 7's? Try to search in there

 

Are you buying a turbo kit or building one? any rx7 shop (rx7.com, rx7store etc...) has the block off plate kits. also need oil feed fitting and drain adapter. if you are handy you can fab most lines up yourself with AN fittings and braided hose. but the exhaust will most likely need to be fabricated unless you go with a kit. I fabed my own kit, but if I was going to do it again. I would buy a complete kit and change what I didn't like. it was a long pain in the ***. Yes it is bad ***(best of everything) but would have been running two years earlier and a lot cheaper. the whole rats nest can come out. the only lines you need are fuel psi reg, boost controller, bov, boost Gage, map sensor and waste gate. Also need oil metering pump ventures or run pre mix. Figuer out what your power goals are and what you intend to use the car for. aspec makes some nice kits.

 

Get rid of everything.. As simple as that...

The only thing u want to keep if the idle control valve and the temp sensor underneath u manifold

 

^Good point.

It may take some research/self-education on your part to get it all together. I was kinda like you when I switched to single turbo. I had some questions as how/where things go, but you learn by doing and doing it one step at a time as you go through the process. I have had a lot of help from the use of this forum and from really great/experienced/knowledgeable people on here.

(This is just me) I would say I spent at least a year, off and on, reading and researching everything about the subject of a single turbo swap before I made the conversion. I just kept buying one part(s) at a time that I needed until it came down to putting it up on jack stands.

I would start in the single turbo thread as mentioned above and you can also go to the search tab for related topics. Here is a thread that I put together of my conversion: https://www.rx7club.com/showthread.p...light=rollogic

Good Luck

 

I agree. I'm usually pretty lenient when it comes to answering questions that can be found by searching in a matter of seconds, but in your case you should just starts searching a researching, you have too many questions that can all be found throughout this thread, pretty much EVERYTHING that can be done to these cars has been covered before. If you get good at searching you will be much better capable of getting things done correctly and more quickly. You will also learn a lot more. Every time I search for information I find other information that comes in handy later, I research and read up on things even though I really don't have a need. Learning how to learn is a big part in gaining knowledge.

 

Thanks for the replies guys'

I am builidng my own kit. I have a turbo, manifold and decat so far.. also got some spare 850cc injectors and fuel pump.. hopefully will have an adjustable FPR shortly.. also got the dump valves and working on getting an external wastegate.
I will fab the down pipe myself (which reminds me I need a v-band flange and clamp!)and and possibly do the blanking plates once I get some pipes off to template and figure what I have to blank off.

Air pump is coming off and I will make up an idle pulley to go in it's place to keep the same belt tension.

The only bit that's got me a little is this (quote- Rx7 Brandon)
"the only lines you need are fuel psi reg, boost controller, bov, boost Gage, map sensor and waste gate. Also need oil metering pump ventures or run pre mix"

I presume you mean i just need vac lines off the UIM or somewhere for all the above bits.. however what is the 'oil metering pump ventures or run pre-mix'.. that's lost me!

My power goal is a fair 400-450bhp gross.. nothing mega!


Cheers
Lee

 

Rollogic,
Thank you that's perfect!

Guy's all I was asking was for a little nudge. I tried searching and didn't find the link posted! Maybe I am doing something wrong when searching?

It seemed and obvious thread to have seeing as 'everyone' is doing it.

I'll happily document my conversion as I go along so everyone can benefit and not have to trawl pages and pages of info over months when they might not have the time to do so.. I have researched a lot since owning my car about 2 years ago. I rebuilt it from a semi stripped rolling shell and before that I had never set eye on a RX7 up close yet alone the engine and workings of one! It took me nearly a year to piece it back together and fired up first turn of the key. These days have even less time than I used to. I get one day week to work on my car if I am lucky and the rest of my time I would struggle to read through all the threads trying to find the info I need. If I had a specific question like what connects to this vac line I could probably easily find the answer but until I get started I was just after a quick run down to get the ball rolling and then I'll search away as I go.

Thank you
Lee

 

Rotary resurrection's website has pretty good info on doing the block off plates. What you require will depend on if you're going manual idle control, if you need emissions stuff etc. I blocked off everything that wasn't needed for the car to run. I removed everything from the rats nest. The only things you need vacuum lines for are fuel pressure regulator, wastegate, bov, map sensor, and fuel atomization line which goes to the boost pipes before the throttle body. Search for vacuum hose diagram under single turbo section. You may keep the pcv valve or delete it as i did. You can run a catch can and vent it or run vacuum lines in many various ways. Its hard to answer your questions cause there is no one set way, there are any number of combinations depending on needs and preferences. I like things simple while giving me full control of everything. The omp can be deleted or retained. I kept mine and also premix at 4 ounces a tank.

 

the metering pump injects oil into the housings under boost. the factory uses a 3/8 vac line to the first turbo inlet(just befor the turbo itself) in the plastic elbow. as the air flow increases it creates a negative presure in this line (or vacume) which opens the metering pump valves. most people just run 2 stroke oil in the gas and eliminate the metering pump system. I run both. I run a little oil in my gas and the metering pump sys. you need one or the other.

 

Actually the above isn't quite accurate.

The oil metering nozzles have lines that run to the oil metering pump (OMP), the OMP determines how much oil is injected, or dribbled out rather.

There is also a line with a check valve that goes to to top of each nozzle, under engine vacuum this line allows the engine to suck in air to keep it from sucking the oil lines dry and consuming large amounts of oil. Just like a straw with a hole in the side prevents you from sucking up your drink. That's what these air bleeds do. Under boost this is not an issue but it has a check valve to keep it from covering your engine bay in oil.

The metering nozzle air bleeds can be hooked up to a small filter, or any other filtered source.(factory uses front primary turbo inlet for filtered air) They can even be hooked to nothing, because the amount of unfiltered air entering the engine would be very small and only at vacuum. Some have even capped them off and reported no increase in oil consumption, but the engineers put them in for that purpose so it's your pick.

 

i forgot to mention to keep the OMP aswell... and it always a good thing to add a bit of two stroke oil in ur fuel too.. and since your stripping everything down, get 2 new lines for the oil jets to the OMP..

 

Thanks guys' I would have never known about the OMP! might of wondered what the hell it was but may not have realised I needed to keep it hooked u proper.. I have had a n oil leak somewhere around the turbos for ages.. I wonder if these are soemthing to do with that. When I was told rotaries use oil I didn't realise they actually had oil injection!

I 'll strip it down and post up pics and additonal questions as I get to each bit if I can't find what I am looking for on here.
Thanks guys
Lee

 

Cheers for the info..

I'll get stripping and if I need assitance that I can't find answers too i'll post later..

Thank you
Lee