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  • 2 weeks later...
Posted (edited)

Well now I understand why my exhaust sound was getting crappy over time.

 

Anyhow, I have obviously now removed the damaged headers, and deemed them too ʞ©$ɟed to bother fixing. They have been tossed in favour of the spare 4-1 pipes from the ae86 engine package.

 

Unfortunately they were for 16v. So I spent a bit of time cutting the ends off the flanges and fabbing up the modifications. Now they are all painted, and installed. But not before I ported the shit out of them for a smooth flow. I never did this to the original identical 4-1 header I had on my first 20v so I am excited to see what if any difference it makes.

 

I ran the car momentarily with them on and the exhaust not connected. Has the typical biplane sound.

 

So tomorrow I'm off to the exhaust shop for the small extension I need at 2pm and then we are back on the road.

 

I wanted to remove the wideband but I better keep it for a while and see how much retuning is needed with the 4-1 pipes. Ill have to have another bung fitted to it.

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Edited by LittleRedSpirit
Posted

Just a combination of heat, age, rust, vibration and occasional hecticity.

 

They were very old when I got em. I'm kind of surprised they lasted this long.

 

I hope the nasty hiss I had at 2800rpm goes away now.

 

I might have some weird tuning to do now.

Posted

All fixed now. The extension pipe has been done and they also have my wideband installed so I can retune for the new header.

 

There are a fair few fluctuations in the tune actually. It drives fine, however the idle dropped below 1000rpm now from about 1175-1225 where it used to sit. It was barely shaking 900rpm with the new pipes fitted. Thats the difference in 4-1s I guess, less efficient down low, more efficient up high.

 

My tuning seems to show this too. Its come out lean right off the bottom, then a bit rich once it gets on the cam and revs out. Should just take a week or two to sort it out. Then I'm going to remove the wideband and ecudatascan and store it for the 2azfe ae86 I'm building.

  • 4 weeks later...
Posted

Thanks alot. :popcorn:

 

As a bit of an update I just put fresh full synthetic oil in her yesterday and a fresh filter. I'm going to adjust idle down a tiny bit.

 

I have nearly finished retuning it. I think I need to go to the drags though to sort out the top end better. Whos up for a visit to Willowbank this week?

Posted

So I was driving home from a mates place yesterday, and I start to hear the front wheel bearings over the sound of the radio. For some reason the front right side was stuffing up. Also the steering went really light around the middle.

 

I jacked it up when I got home and sure enough the bearings on the side had about 3mm play. I removed the outer one to inspect it and found an extreme level of wear and a lack of grease. I put it back together enough to get me to service.

 

The wilwoods stress these things really badly.

 

Luckily, I bought a set of wheel bearings to put in ages ago, so I have them in a drawer at my workshop.

 

Guess what I'm doing today. Haha.

  • 1 month later...
Posted

Diff has a new left side wheel bearing now.

 

Also, car is for sale so hit me up if your interested.

 

$10k minus wheels n logger.

 

If you wanted it cheaper I can take suspension fruit out n work out a deal.

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