The Best mod to improve reliability?

[steve b]

If you\'re going to be doing trackdays, which you I don\'t think you stated in your first post, then i would definitely change the stock "inter-warmer", air charge temps of over 70 degrees on a nominal 15 degree day is not good imho . For normal driving the std cooler can be ok, but the track demands so much more than the road, unless you live in the French Alps or something I think you\'ll find that reliability for the track will be very different than reliability for the road.

If you go for a v-mount then a nice shiny rad should come with it :yes

Paul

Ah yes , should have said that from the start

[Carl]

Hi carl, I see what you mean but the main use for the car will be trackdays, so I think it may struggle?  Read stories previously that the rx7 rad is really too small as a result of mazda going overboard with weight saving, don\'t know that this is true mind?

Warthog, I\'ll give you a call about 5ish after work, maybe I could pop over and have a look at your car? cheers Steve

No probs Steve,
I now see where you are coming from!
Get a V mount,vented bonnet,Apexi ecu,and mapping of course minimum.
Regards
Carl

[normski]

Stick big ass blower on it!  :Hammer

[probedb]

Found this thread good for reliability mods...sorry you need to register but it is a rotary forum

http://www.nopistons.com/forums/index.php?showtopic=6869

[steve b]

Found this thread good for reliability mods...sorry you need to register but it is a rotary forum

http://www.nopistons.com/forums/index.php?showtopic=6869

Cheers Sir  :wave

For those that don\'t want too register elsewhere :-

Ok, now you have your RX7. I hope you got a compression check... biggrin.gif

Get the recalls done. Call Mazda; Have them run your VIN. If your recalls have not been performed, GET THEM DONE.

Do the fan mod. 1 Wire, 5 minutes. Unbolt ECU, find the 1 stray wire, hook it to a 2-pole switch, Ground it, DONE. Leave the switch on for 2 minutes before shutdown. Shutdown car. Fans will stay on. Wait 30 seconds, turn switch off. Fans will switch to low and stay on for 10 minutes. Engine bay heat removed.

Replace your AST with an aluminum one. Or remove it from the system. (Not recommended, but can be done.) The AST is a weak point in the cooling system. It will crack. I advise doing this BEFORE a downpipe, due to the fact that even though a downpipe will keep some excess heat from the engine bay, it will not keep the AST from failing.

Replace your downpipe. YES you can still pass the sniffer. The stock precat is a very heavy, restrictive pipe that retains a lot of heat after shutdown, and releases it into the engine bay. This leads to premature deterioration of vacuum lines, and wire insulation. The downpipe is fairly easy to replace, and can be done on jackstands, with hand tools.

Install a boost gauge, and a water temp gauge. There is a nipple on the intake manifold Mazda had reserved a boost gauge. Uncap it, USE IT. For the Temp gauge, either tap the filler neck for the Temp sensor, or cut the cooling hose running to the upper intake manifold and install a “t”. Don’t rely on the stock temp gauge. It is no good.

Flush the cooling system and REPLACE the Radiator. The stock Radiator has PLASTIC endtanks. They will fail. Replace it with an all aluminum one.

Replace ALL the cooling hoses. ESPECIALLY, the 2 going to the turbos. They can be removed, but again it’s not recommended.

Replace your thermostat. Self explanatory.

Replace vacuum hoses with silicone hoses. Or do the Non-Sequential mod.

3 MOD RULE: You may hear that you can run 3 mods with no ECU. It can be done, but is not recommended. If you have an exorbitant amount of cash, then don’t listen to me.

If you get three mods, your fourth should be an ECU. Enough said.

Please, do not buy an RX7 and think you rule the world. YOU DON’T. Take care of it. It is a VERY reliable car if treated right. If you want to be a statistic of the “ I heard RX7’s blow up at 60,000 miles…. BLAH, BLAH, BLAH….” Then pay me no mind. Happy Rotoring!

[Martiny]

Well I doubt if Mazda will do any of the recall mods if your car is a grey import, which I assume it is.