Bad manners !!

[gsb876]

My rx does this sometimes and its getting close to plug changing time so i would say you guys might well be correct on the plug issue.

[Red and Single]

hhmm, just thought id check its always the simple things you think of last, well in my case anyways

Seem to really notice difference every time you get new plugs in these cars, supposed they get coked up fairly quick

Hmmm...

May be worth me changing the plugs every 3K with the oil and filter given my daily crawl in and out of work.

[Red and Single]

My rx does this sometimes and its getting close to plug changing time so i would say you guys might well be correct on the plug issue.

Right then, thats it... 1st plug change coming up

Where is best place to get said plugs chaps ??

Cheers  :cheers

[ScuttleRX]

try one of the vendors mate, probably cheapest as they must buy loads of them

[royston1xx]

If the car was tuned on the rollers it was probably mapped at wot and medium to high load areas. You need the light load and cruise set up also by the sound of it.

[ro284]

my plugs have been in since it\'s rebuild 6k now, i need to do an oil change too,and i am a bit worried about belts, so i was thinking of going for the Dragon service kit, do they do 9s plugs ? anyone know? i have never redlined the car ever myself, it runs very well but tickover is a little unstable now, which i think maybe plugs,
cheerrs Bob

[ScuttleRX]

First things first, get that buzzer going, your missing out on the best part of a rex

Imagine they would be 9\'s mate, reckon they might even have 7\'s if you want them

[ScuttleRX]

oops, just noticed recently rebuilt, but 6k, should be into play time now :cool

[ro284]

Yes it\'s me scuttle! i was thinking of changing my name to Lightfoot! lol,
the plugs in there are 9s and i havent cleaned them yet, my car has been redlined by the engine builder to check everything, i think the trouble is i\'m too used to slow running v6 engines, but anyway wrong time of year now, maybe in the spring i\'ll give myself a treat! or a fright!
Bob

[ScuttleRX]

Yeah i suppose the v6\'s a lot of your power will be low down roll on spring, this weather sucks, why is it always dry all week then miserable at weekends

[Martiny]

Red and Single, you say "Street port?" Its most likely the port modification thats causing the roughness. Thats why Mazda made the standard ports like they are - for idling and smoothness.

[Red and Single]

Red and Single, you say "Street port?" Its most likely the port modification thats causing the roughness. Thats why Mazda made the standard ports like they are - for idling and smoothness.

I did wonder, although we\'ve (myself or re:worx) no idea as to the extend of the port work as the engine\'s not been apart.

Re:worx said it appears to be ported by examining the power graph.

I\'m interested to see if someone with mapping skills could take a look at it for me

[John Yorke]

best post up the graph

[Red and Single]

If this works, here you go, sorry it\'s a photo of a piece of paper !!

[Carl]

even with a pretty seriously modded engine and porting it should be possible to tune the low rpm and light throttle areas of the map for smoother running.
Regards
Carl