Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: snyperboi on May 12, 2011, 10:03:14 AM

Title: Need help with tuning before my car starts for the 1st time??!!
Post by: snyperboi on May 12, 2011, 10:03:14 AM
Hi everyone. I am literally on the verge of dropping my newly rebuilt FD3S engine in but have had advice regarding mods and I really need more advice before I wreck it.

I bought the car with a decat, twin induction kit and also a non sequential turbo mod.now I\'m pretty sure the car was fitted with a different ecu but he didn\'t tell me. :(

So can people help me regarding what I should do? I mean I was thinking of going back to sequential but what does that entail? Or is it cheaper to get the whole thing mapped??
Title: Need help with tuning before my car starts for the 1st time??!!
Post by: m1tch on May 12, 2011, 05:26:58 PM
Hi there, if the car had a decat the ECU should have been changed as decatting an FD usually causes boost spikes and the engine might go lean and cause detonation and damage to the engine.

I would also focus on the ancillaries like fueling and cooling as these can sometimes be overlooked and the car can overheat on components that are 2 decades old lol

I would follow the break in procedure on whoever has rebuilt the engine

I would also make sure you have a mechanical boost guage and also a water or oil temp guage and take it steady to start with, if the engine overheats it could wreck the water seals meaning a soft seal rebuild.

I think the key bit of advice is to take it steady, keep the car well serviced and use performance fuel like V power or 99 RON stuff, a few extra £s on fuel or oil would help the engine run for longer, plus can give some more power.

Its best to have a check around what other people have done, what mods they have and the sorts of boost pressure/power/fueling they have.
Title: Need help with tuning before my car starts for the 1st time??!!
Post by: turbotoaster on May 12, 2011, 08:18:24 PM
spend yourself £500 and get a power fc and run it on a basemap until you can get it tuned properly.

if not you can run it on a stock ecu to run the engine in, but just keep it out of boost until you get an aftermarket ecu
Title: Need help with tuning before my car starts for the 1st time??!!
Post by: snyperboi on May 13, 2011, 12:11:18 AM
Ok thanks for the advice guys.I have done the rebuild myself so unfortunately I can\'t ask advice from the mechanic.lol.but I will get an aftermarket I think.I have been offered a mines ecu.what do you think of these?just looking to get something cheap at the moment until I can get an apexi!
Title: Need help with tuning before my car starts for the 1st time??!!
Post by: HaywardRotary on May 13, 2011, 09:21:20 AM
If you can\'t afford an Apexi yet then just use a stock ecu and don\'t go over 3000 rpm or give it full throttle,you don\'t want to use a mines chipped ecu or yuo\'ll pop the engine and undo all of your hard work.
Regards
Carl
Title: Need help with tuning before my car starts for the 1st time??!!
Post by: snyperboi on May 13, 2011, 11:17:25 AM
Ok sounds good.better start saving the pennies then!lol.