R3spcts Blue Smurf MX5

[WideOpenThrottle]

Plus i got some old headers but there is a hole where the o2 sensor used to be-should be easily welded.

[r3spct]

Turned out to be 2 issues, the heater seems ok, but the floor is soaked, but its just water, so either a leak or aircon is not draining, i used it last night due to fogging, but its soaked so might still be a leak somewhere.

The heater hose that goes around the back of the head had a pin prick hole, wasnt dripping, was squirting a fine jet, so was hard to see until i had it running and a light pointed at it, hose wasnt even wet or dripping. Been told that they are only 20 each new from mazda, so will order 2 new ones, but cut damaged piece off and pushed on further and put a new clamp on for now.

Im picking that aftermarket headers would make a huge difference to these engines, the factory collector is rubbish, cant wait to make a new one.

[Furai]

I looked into aftermarket headers but the stocks ones arent that inefficient, they do crack though so replacing them can be cheaper.

My understanding from the results I read on the dyno are a 1hp gain if your lucky, thats with no other work done to the engine. I would rather spend the money on a better flowing cat.

[r3spct]

I find that odd, mine are cracked so need to remove and repair anyway, but the pipes are horribly crushed into the collector.

Costs me nothing to make my own i guess, will prob make my own pipe to the cat from there in 2.5 anyway.

[r3spct]

Took headers off and welded the fine cracks i could see, but it looks like the leak is down the center of the collector, which is pretty much impossible to weld, so might need to find some new ones or cut the collector off and weld it up and weld back on. Argh.