Racing My 89 TII in February - Help!

[Highside]

Evening All,

I am new to the site, haveing just bought an 89 TII, with the express intention of racing at Silverstone In the VSCC Pomroy Trophy in February.

However - at the moment the car is bog stock, apart from the big dent in the roof, a bent bonnet (hood not latched...you get the picture), and absolutly no interior (the previous owner was going to strip the car and put the engine and box in a westfield but thought better of it - and is just now pulling the engine and \'box out of a mint Cosworth Turbo...).

What I need from you guys is some help in getting the very most out of the car while not breaking the bank.  Specificaly I need the following:

  A free flowing exhaust.
  A BOV.
  An FCD.
  An uprated Fuel Pump.
  A FMIC
  Etc, etc.....

But most importantly - YOUR ADVICE!

Seriously, if there is anything that you can help me with - be it some parts, or just some shared knowledge - give me a shout.  

I have just 32 days to build a road leagal race car.  Nothing like a challange to get the new year started is there?

Happy Racing

Highside

[MikeLMR]

Originally posted by Highside
(the previous owner was going to strip the car and put the engine and box in a westfield but thought better of it - and is just now pulling the engine and \'box out of a mint Cosworth Turbo...).

some peole have no taste :rolleyes: a rotary is a superb engine in a lightweight car a YB cosworth engine is a heavy lump at best

hi, good luck with the project

and you\'ll be needing these ->RX7 links

[t2rew]

it would be a very good idea to get some fuel management on your car. ididnt have this and am sure it led to an early bath for my engine once the speedo was showing some good treble digits. do you fancy donington on the 3rd of feb, i\'ll be there, ON MY OWN?

[Highside]

MikeLMR,

I agree that it would be an awsome project - but I think there might be some preety big heat issues - a 910 degree exhaust would melt all that plastic like a bad Salvador Dali picture.....

Cheers

Highside

[Highside]

Jason,

What sort of Fuel management would you recomend?  Any experiance?

Cheers

Highside

[t2rew]

i have no experiance but i would get the apexi super afc. it is a good bit of kit and i would buy it if i was doing what your going to do but my prodject needs a bit more than this item can give. i would love to give you a web address but i\'m not that good at getting it up properly ( on the screen you understand )

[Highside]

Jason,

There is one of those for sale on Find-it at the moment (don\'t all rush at once...).

Does anyone know if they are universal or vehicle specific?  Who would be able to set it up?  Rotechnics? Any ideas?

Cheers

[t2rew]

goto autodynamics.com  it seems there is a new model out , it fits all and i think you follow instuctions and diy

[t2rew]

Originally posted by jason turner
goto autodynamics.com  it seems there is a new model out , it fits all and i think you follow instuctions and diy

i told you i cant seem to get it up, do a serch for apexi and goto one of the english speeking sits

[Highside]

Ok will do.  I\'ll let you know the results.

Cheers!

Highside

[Glenn Butcher]

Highside,

Sorry - I only just saw this thread.

You will need to supply extra fuel to the engine for sure.  Even just by changing the exhaust you will probably get boost spike.

If you get your hands on an aftermarket computer, you may as well see if you can get slightly larger injectors also.

Give Pip Gardner a buzz at //www.wgtautodevelopments.co.uk - he has quite a bit of experience with racing rotaries.

What about your brakes?

Great sources for information are:

http://www.rx7forum.com (you can search the Forum)
http://www.scuderiaciriani.com/rx7/ = excellent site
http://www.rotarytop150.com/ - a number of good links


What date are you going racing? I would like to come along if I can.

[Grizzly]

Hi all,

I have to point out from the start i am not a track man! but i do like Country lanes. LOL

Ok, Do you know how far you want ot go?, what sort of budget you have? or most important are you willing to import parts?

First thing to look at is Suspension and Brakes. How i started of is replacing all the things that wear out or go soft over time, so all the bushings got replaced by Polly bushings, i also added toe eliminator bushing to get rid of the rear steer (i found it feels more predictable without rear steer) once all that is done you should look at uprating the struts and lowering a little (about 1" for best gains) the problem with lowering the car even an inch is it throws the camber/caster out, to get around this you need a set of pillow mounts for the ft and Ajustable rear Camber bar for the rear.
The last thing that i am not realy keen on is Sway bars/Anti roll bars, they tend to take all the body roll away this is good for a track car but i personaly dont like it for road use (it also make the ride harder).

Steering. I personaly dont like Power steering, so i got a manual rack of a NA second gen. this is a mod that gives you alot better feel and a bit of space (PS pump and pipe work gone)

Brakes are a bit of a vauge point, the stock mazda ones are very powerfull and work well (four pots) but all i did to uprate them is fit grooved Disks all round and some fast road pads (for track you\'d want some pads a little harder then mine), also for a bit of extra feel i fitted some Braided brake hoses.

Engine, The problem with T2\'s is you have to do allot of stuff to replace to get good Hp this is where your Goal comes in?.  When tuning a rotary for reliablity with some power you must spend most time and effort making sure you have a good fuel sytem, this can be done easly by geting another stock t2 fuel pump and adapting the pump assembly to acept two pumps hence saving some cash, with the extra cash buy 2 1000cc injectors and a Rising rate fuel regulator, now you are ready for your ECU. I recomend the Haltech E11 its new out and you\'ll need to fit a new engine loom but its got a Windows based 3d map,Omp driver and is a bit of a Gizmo (Base maps can be down loaded from Mat\'s Hitman site). Once the Ecu is done the Air flow meter can be lost (very restrictive).

The next thing to do is look at the water cooling system, i like to be safe so i went for a K2RD alloy rad and a new set of hoses. One more thing that is a Must is dubble belt Alt pulley this becomes very important when you loose the Air pump as there is only one source of drive for the water pump without one.

Now your Fueling is capable of more power you want to look at your Turbo, the stock turbo and intercooler will start to loose its eficancy at 300hp (flywheel hp) but there is a problem the stock Turbo wa never designed to take this sort of power and will not last long the other thing you will encounter is boost spike this is caused by the Turbo\'s wast gate being to small to cope with the Exaust flow thus not slowing the turbo spool down and basicly over shooting the set psi.
So anything over this Bhp will need an Uprated Turbo and External wast gate,now you have the turbo you will need to go ft mount too, check out E-bay as there is always Fc ft mounts second hand for sale (US).

Gear Box & Diff, you will be happy to learn the fc T2 Box etc is very strong and can handle up to 400 bhp without a problem. as for cluches and flywheels MazdaTrix do a Tilton Double plate Clutch and 9 1/2lb flywheel that is the best deal i\'ve found.

Exhaust and Air filters. Exhaust, you realy need a 3" down pipe to back box, if you are not going for looks and want pure flow and hp go for a Single (ie. an exhaust that does\'nt have two tail pipes) you will save some weight and there is little to no diffrence in power (just watch how loud it is if you want to use it one the track). Air filters are also personal prefrance i have always used K&N they can be bought as Universal saving time and money (does\'nt say RX7 on the box?).  

Once all that is done you can then think about what port style you want but thats for another day.

Stuff like the Bov basicly does\'nt do a lot but if you dont want to use the std one i recomend the Greddy BOV\'s (never had a problem with them)

To be honist i like things simple and reliable and so i dont recomend loads of bolt on goodies. Boost controlers are good but buy a good one (Greddy profec B) try to avoid piggy back ecu\'s and all that crap you see on Rs Turbo\'s, just buy some good quality gauges (EGT,Oil Temp,Oil Presure,Water Temp) and put them somwhere you can see them.

I would like to take this time to say sorry for the spelling and i hope it makes sence, its 1.20 and i\'ve typed all this for the second time, I hate computers.

Chris

p.s. if you have any problems or querys PM me.

[Grizzly]

Sites you may want to visit.

As Glen says Pip has raced a Fc for quite some time and knows his stuff.http://www.wgtautodevelopments.co.uk/

This is racing beat its very handy as Ro Technics are the Main deales for the Uk.http://www.racingbeat.com/

Mazdatrix web site is good for race parts, they are also very experianced in racing fc\'s http://www.mazdatrix.com/

K2RD this place does very good deals on Suspension and Alloy rads.http://www.k2rd.com/Online_Catalog/AGX_specials.htm

Tim at RxMotors, You will have to go to Dorset to visit this guy he is a true Gru. http://www.rxmotors.co.uk/

Suspension Geo on this cool forum.  http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=200

Teds site, this is more of a guide (it is not 100% acurate but there some good stuff on there). http://fc3s-pro.com/TECH/MODS/mods.html

Chris

P.S. if you where woundering i\'ve attached a pic of a duel fuel Pump set up.

[Grizzly]

And this is the perfect parrellel Fuel set up.

[Grizzly]

HighSide, Where are you?

Chris