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Jahy Fohn

New cork lad

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The Mazda standard rev C I think are the cheapest and some swear by them, there are rotary specialists in U.K. Rotary Revs and others selling D585 and 969's which are a step up and have lifetime warranty, some lads here even source the components individually and make there own sets up. Best advice is have a look yourself, ask the questions on here as everyone is more than helpful and be very weary of very cheap coils on eBay, as a bad set will kill your rotor. I'm running the 969's and they seem fine.


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Perfect thanks for the advice . I ordered a cheap decat off e bay today . will I see much of a difference in performance and fuel economy with this ? I'll be getting a full exhaust system eventually just don't have the money at the minute as I have 3k set aside just in case the engine goes bang lol. 

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19 hours ago, Jahy Fohn said:

Does anyone know someone decent down in cork to do a engine remap ? is it true I can get better mpg and slightly improved performance with this ? how much is it roughly ? 

As Rex said Littlefeck in Athy is your man for a remap. I'm not sure about mpg (probably a negligible improvement in fairness) but certainly there's a dyno-proven gain of about 10bhp at the flywheel after a remap if you've a non-JDM RX8.

14 hours ago, Jahy Fohn said:

any recommendations for coil upgrades ?

Again what Rex said: Mazda Genuine 100C coils, D585s or R969s. The most important thing to ensure first is that you're not currently running anything less than Mazda Genuine coils (do a search on here - it's been covered in detail) - ideally the "100C" coils which are the 3rd revision of the Mazda coils if you are running stock coils. You'll be able to see the part number & whether it ends in 100/100A/100B/100C on the right-hand-side of the rear-most coil facing the passenger seat (look underneath the throttlebody, beside the ABS unit standing at the passenger side of the car). If the part number is embossed into the plastic of the coil, it's Genuine Mazda - if it's printed/not there/a label, it's fake & should be replaced asap.

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I have the revision c coils - they're spot on so far although I would like to upgrade to the d's when I've finished my other bits and bobs


Dusty Rex! The upgraded ignition system should have been first on your to do list!
Too late now, horse bolted and all that!



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7 hours ago, Chazz said:


Dusty Rex! The upgraded ignition system should have been first on your to do list! emoji23.png
Too late now, horse bolted and all that!emoji85.png



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Yeah, I know :( but I only had some smallish moneys and the 100c's came up cheap so I could get them plus other shiny stuff or the d kit and no shiny stuff.

I AM WEAK :(

I will do better next time @Chazz - I promise!

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Said I'd throw up some pics of the motor here anyway for those looking to see it . found out when looking through the folder that came with the car that's it's had a full stamped service history witch is strange that seller didn't mention haha . bonus I guess . @55k miles and running like a dream 

https://www.dropbox.com/s/ozt414ejd1ahdit/20161114_233512.png?dl=0

https://www.dropbox.com/s/f0v05fn0k6pwz6j/Screenshot_20161112-180022.png?dl=0

https://www.dropbox.com/s/43z6avsnijn7h5b/Screenshot_20161112-180026.png?dl=0

https://www.dropbox.com/s/8igssob8c50564p/Screenshot_20161112-180029.png?dl=0

 

Not much done in the way of mods . has a upgraded wosp starter and I fitted a decat pipe a few days ago to it .

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Thanks bud . ya I love the black been looking awhile for the right one needed the leather seats etc and found it eventually. is it worth getting the car Street ported ? and how much would it be or should I wait until I need to change the engine for this 

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Street ported? Now the best man for that question is@RichieDC, he's ported.
You'd get her ported at the time of a rebuild so hopefully you'll have a long time to think about it.
I put up info about porting somewhere on here last year but can't remember where. Try the search option you may find it.



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It's definitely a job to do when rebuilding. The below is an excellent explaination ftom @Bradyy re porting.

 

Porting technically from an insurance stand point is "modifying the car" , however I believe there is a line in there somewhere "parts replaced for upkeep and maintenance of the vehicle with oem or alike" are allowed with porting your not really changing parts they are oem just "refurbished" , in the end I wouldn't say the insurance can do anything , sure even the tyres on the car are aftermarket .... theres many views upon insurance and I'm not going to open that kettle of fish but , realistically no there should be no issues from an insurance stand point and even then , they more then likely will never open that engine ... let alone even know what the hell there looking at ... 

 

The key benefits to a street port is as follows: 

Information source : @RichieDC

"Corners" are taken off the ports and blended to create a smooth transition to the plate from the port , this will decrease side seal wear.

More power @RichieDC car made 203-204 on the dyno , this car had full exhaust system mani + backbox + decat standard pipe it had d585s and @littlefeck Map on it  , More air in + More air out , and some minor timing changes creates more power it seems 

Fuel economy seems to get better with the port as a little bit of overlap begins with the porting 2 - 3 degrees if even , I don't know if its @RichieDC and his puny right foot and granny like shifting that is playing a role In that , but it seems to help anyway ! Richie can and does get the 400 mark and beyond ! with some 500's in there ! "cite this as needs be Richie ! "

Smoother intake flow and smoother intake tract 

Port Matching always helps to stop disrupt the flow of air ! 

Power from 4500 till 9200 (once again Richie feel free to correct me !)

The key benefits to a half bridge is as follows :

Information Source : Me @Bradyy

All of above bar 3 ! (See Cons)

Even more air in and the port timing changes rapidly with some overlap of about 10-15 degrees "marginal I know but still"

Bigger exhaust ports , when I ported mine with the help of @RichieDC we went a "bit" bigger to the point of us wondering was this going to work ... it did and creates even more overlap which is about +5 degrees 

More Power My car made 202 on the dyno and had everything standard on it apart from a decat standard pipe , we believe it would make more with a map and exhaust system ! best case 220 worst 210 , 

Power from about 4000 till 9200 

Half Bridge CONS :

 IT EATS BLOODY FUEL ! , if you go anywhere above the 4000rpm mark mpg drops to about 12mpg , above 6500 it drops to about 7mpg ... around town I see about 17mpg and motorway about 24mpg if I drive like @RichieDC

 

 

Bottom line really street Porting helps in a number of areas and I would recommend it to anyone that is getting there engines rebuild if not for power and if not for fuel economy simple to take the edge of them bloody sharp ports ! 

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It looks to me like you've started off on the right foot here John. Well you may wear B)

As the gang have said above, it's a fantastic community and a great bunch of knowledgeable skins in here.

I do the street porting @ shadow rotary since 2014 and the results speak for themselves. So when it comes to the time you decide to get a rebuild, just shout and we'll look after you.

FYI, if there's very little damage to the internals of the block when it arrives for a build and port, then your budget should be able to cover both.

The list Brady put together covers a good bit of the benefits, but it's only when you drive it yourself will you feel the difference it makes.

Here's a vid of how my 8 sounded the day we finished the build and port.

And the next vid is from the dyno day we all did earlier this year.

I've put 33,000 on her since without skipping a beat.

 

 

 

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