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MB2 K-Swap Civic project - from base spec to race spec


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Just took a rather nerve racking first proper drive of around 15 miles to a local stainless exhaust fabrication place before work. I've left the car with them as I really didn't fancy driving any further with the noise level/fumes but I should get it back next week!

 

I've asked them to make up a 3 inch exhaust, with a high flow cat, centre res and back box. I want the least restriction but I don't want the noise level to be too crazy and get kicked off a track day so we'll see what they come up with. Its definitely overkill for NA but we might boost it once day so it would be "future proofed" for that.

 

Car for the most part drives fine - the only things I've noticed so far:

 

- The steering is a bit off centre - it could be just the boss isn't on right but I think it probably just needs an alignment as we've had the front suspension apart several times to fit driveshafts, coilovers etc. The power steering is working perfectly though which was a big goal of mine as most people delete the PS on these kind of swaps but it's not pleasant to live with off the track.

- The throttle is a bit "sticky". Sometimes it idles at 1200rpm and then if you pull the pedal up with your foot it settles down. I have tried to adjust it once before to no avail and I've checked the TPS is calibrated properly. It may need a new throttle cable as im using the 25 year old original one.

- Just as I was pulling into the exhaust place the car started to run really badly and stumble. I turned it off and back on then it was fine. I did notice on my laptop that it is running very rich - I am hoping it's just over fuelling due to the o2 sensor being almost certainly too close to the end of the pipe (its just before the flexi and there's no exhaust after that point). I'll not worry too much about this until there's an exhaust fitted!

- The front end feels a tiny bit loose but ive not driven the car enough really to comment fully. We haven't adjusted any of the suspension or changed any worn bushes etc at the front so I will reserve judgement until thats all done.

 

But honestly, for a first proper drive it didnt go badly at all. No fluids leaked out or parts fell off!! Did get a few odd looks as frankly the car sounds ridiculous but that will be all sorted soon enough... My father in law followed in his car with a bunch of tools and a jack in the boot but luckily we didnt have to do any roadside repairs.

 

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  • 4 weeks later...

Car is finally back from the exhaust shop.

 

The tailpipe is pretty subtle looking but it sounds pretty angry (in a good way!)

 

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Not the best pics as was on axle stands today but it's got a 200 cell sports cat then 3" all the way through with a centre res and rear box. It's totally overkill for N/A but I wanted to prepare for all possible eventualities!

 

Worked on a few other annoying issues. The throttle body was sticking open slightly but that seemed to be down to a rubber boot on the throttle cable getting jammed in the throttle body wheel. Secured that on properly and now it seems to be behaving itself.

 

No signs of any check engine lights related to O2 sensor, I think my suspicion about it just being because it was at the end of the pipe was correct.

 

Replaced the totally rotten and corroded bleed nipples on the rear drums and managed to do a full bleed of the brake system, that's working a lot better now.

 

Battled with bleeding the clutch all day. The master cylinder looked like it was weeping so I fitted a new one but this didnt help at all, despite fluid coming through it still feels spongy. Next time im going to try a "reverse bleed" pushing fluid back up from the slave cylinder end... to be continued

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13 hours ago, KiNK43 said:

Use a syringe and back fill the clutch slave btw. I do this on most things works a treat on clutch motorcycle brakes etc

 

Cheers - thats what we ended up doing in the end and it worked,

 

The pedal has a lot of free play at the top so I need to adjust the pushrod and the bump stopper thing at the top, will tackle that next time

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