FC3S Modifications and results

[Brett]

Thought this might be a good thread to start. (Sticky if it turns out useful?)

 The idea is that when ever any of us make a modification on our 2nd gens (assuming you dont want to keep it top secret hush, hush etc) post up here what you did and why, plus any performance gained and costs involved.

 I\'ll start with the next post.

[Brett]

Baffles removed from Rotor housings.  

 Remove the steel pins holding them in and the baffles will just drop out. This mod increases flow through the exhaust port by a large factor.

Straight through exhaust system (including manifold)

 Made by Hurley in 2002, cost over £800 (I know, I know...)

 Sounds absolutly fantastic, coupled with the removal of the baffles this mod has to be good for another 20+bhp.

 K&N induction kit, cost around £150.

 Increases airflow throughout the rev range, can show up holes in the mapping when the engines cold.  I\'m not sure what this mod gains on the power side of things, but it sounds pretty good

 Better earthing harness.

 Cost around £10 for the parts and about 10mins to fit.
 Find a decent earthing point on the body, rub the paint off so you are contacting metal.  Using decent braided wire connect the chassis to this point.  I also made another earth, going from the battery \'-\' terminal to the body.
 Doing this should lower any impeadance and helps to soften out the flat spot at around 3750rpm.

[grinder]

Custom Gauge Holder :

http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=14091

[grinder]

Air Pump Removal :

http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=14205

[sadgoth]

OK here goes:
1/2 Bridgeport (on secondaries) with a Streetport on the Primaries
when engine went I though might as well eh? - This has resulted in a massive increase in low end power and response but with stock ECU, IC and turbo the power drops quite quickly!

Removed interior (reduce the weight!!!) no massive difference, but the noise makes it all worthwhile!

decat into full SS exhaust (exhaust was on the car when I bought it and the decat went on with the new engine)

Unbranded induction kit (a cheap jobbie from US ebay! - does the job though)

Air pump reomved for easier acces to the turbo and to get rid of an extra strain on the engine

Tein SS Springs (now replaced with Koni adjustable shocks paired up with Pi springs) the Konis have really made a difference to the handling!

Alloy bonnet from a cabrio (more weight loss!)

17x9 rears + 17x8 aftermarket wheels from an FD with 255 40 17 and 235 40 17 Yokahoma rubber respectively (well soemthing on the car has to be for cosmetic purposes!)

Microtech LT10s ECU with the uprated ignitors and coils (I\'ll report the performance increase once I get the thing running again!)

[grinder]

Induction Kit Fitting ( Pics only no real write up ) :

http://www.mazdarotaryclub.com/forums/showthread.php?t=15466

[cjr]

heavily ported lump, T04R(when I get it back) microturd lt8 and coils. PWR front mount and a few bodgesmakes 397.8rwhp on sod all compression. Pointer don\'t leave timing lock one it warps tips. will find out soon what it makes with straight tips

[grinder]

Top Hose Water Temp Sender ( Pics and how to (ish ))

http://www.mazdarotaryclub.com/forums/showthread.php?p=144188

( and thead purged )

[Brett]

Blitz BOV and Knightsports FCD fitting guide.

Fitting guide

[thebandit]

Mods so far on my EGi, I will report on how they fair up once on the road in a few weeks

-DTSS Eliminators
-TurboII rear ARB
-Stripped Interior (sound deadening removed and carpets - prepped and painted)
-Bucket seat
-Custom Exhaust
-HKS Induction (Home made using HKS Mushroom filter)
-Earthing kit

next mod: TurboII rear diff and half shafts with custom drive shaft - will be running aftermaket 2-way LSD

[Brett]

Straight through exhaust system, fitting overview.

Exhaust

[bnaellis]

1990 turbo II

Jap import.
ex erc circuit car
resprayed purple from red
erc rear roll cage
erc fully adjustable pillowball suspension
erc suspension braces
erc strut brace
erc modified gearbox
can\'t remember which clutch & lightened flywheel
wide wheel arch kit
aftermarket front end with foglights
erc exhaust system
fat 1 inch rear wheels and 16 inch front don\'t rememeber make
slotted brake discs and afetrmarket pads
loads a gauges inside
bride bucket seats
reloacated battery to storage bin
hks addidtional injector controller
intergral wideband
front mount intercooler
relocated oil cooler
4 extra injectors
rotary imports streetported engine
rxmotors rebuild
fuel pressure regulator
fuel pump
blitz kkk k27 turbo
just arrived apexi ecu
awaiting arrival of water injection
probably will sell soon. The best handling rx7 in the country.
I\'m sure there\'s more but my brains fried.

[Brett]

Heres the how to on the ECU swap.

 It feels quite poky now and runs a bit smoother, power has increased, I think.  I wil confirm when I next get it on a Dyno.

ECU

[Iwan]

Own a jap-spec FC3S GT-R version build nov 1985!
Specs so far:

-decat
-uprated radiator (very important)
-removed BAC Valve
-all emission- stuff removed (no air pump aswell)
-many block-off plates so far
-Microtech LT8S
-stock turbo on 0.9BAR or ~13PSI and stock IC (intake temps to high!)
-uprated injectors (1000cc secondary\'s)
-S5 gearbox with very long final to run over 280km/h on Autobahn :-D

REgards
Iwan

[Iwan]

Specs has been changed due to winter process :lol:

Specs as bellow plus:
- FD Fuelpump (to be replaced soon, Bosch 044 is the target ^^)
- HKS full Turbo-kti T04E (ターボ　キト ^^)
- Energy- Suspension urethane bushing
- Racing-Beat adjustable control- endlinks
- Savana GT-R adjustable suspension
- Blitz dual SBC boost- controller
- few gauges ^^

Pics attached ^^

REgards
Iwan

PS: costs so far: >4500 GBP \'°_°\'

Own a jap-spec FC3S GT-R version build nov 1985!
Specs so far:

-decat
-uprated radiator (very important)
-removed BAC Valve
-all emission- stuff removed (no air pump aswell)
-many block-off plates so far
-Microtech LT8S
-stock turbo on 0.9BAR or ~13PSI and stock IC (intake temps to high!)
-uprated injectors (1000cc secondary\'s)
-S5 gearbox with very long final to run over 280km/h on Autobahn :-D

REgards
Iwan