It's fitted!!!

ScoobyDoo69 · 27 Jun 2006 at 12:34

agw_01 said:
For which part?

I didn't think there was a gasket for the cat to downpipe. I just thought most people used exhaust paste.

That's what was on there before anyway.

paste really won't make the same seal that a gasket and paste will

agw_01 · 27 Jun 2006 at 13:38

ScoobyDoo69 said:
paste really won't make the same seal that a gasket and paste will

The cat bolts to the downpipe

If the paste covers the surface area where the two meet, and then it's bolted together, it isn't going to go anywhere

D4VE · 27 Jun 2006 at 13:47

Paste is a bodge

On my Astra there was a round gasket there.
Im not sure on the Rover, but I can check the EPC later if you want

agw_01 · 27 Jun 2006 at 13:53

Cheers Dave, that'd be great

Right, just grabbed these from my camera... will get the videos up when I have a spare minute.

And finally, the hole in the old exhaust!

You can see the scrape marks where it caught on speedbumps/the driveway.

Zip · 27 Jun 2006 at 13:58

I can see orange indicator bulbs :eek:

agw_01 · 27 Jun 2006 at 14:01

Where?

D4VE · 27 Jun 2006 at 14:07

ok mate Ill check for you later.

Car looks good, seen you on Rovertech, what width/profile are your tyres?

Zip · 27 Jun 2006 at 14:11

agw_01 said:
Where?

In the blue circle square i put around it

agw_01 · 27 Jun 2006 at 14:11

Cheers, it does look better clean

Tyres are 205/50. Rolling radius is slightly different, but the speedo is now bang on at 30, 40 and 50mph. Not tried any faster.

They do look a little chunky, but I couldn't complain for the price I got them for. Maybe when these tyres are worn out, I'll replace them with lower profile Eagle's or something.

In the pic of the car from behind, the backbox does sit a little bit lower than that. I got out of the car and noticed the exhaust had come off one of the hangers... cue me struggling to get it back on. I'll sort it out when I get home from work tonight.

agw_01 · 27 Jun 2006 at 14:12

Zip said:
In the blue circle square i put around it

ROFL

Yeah, they're orange bulbs. Funnily enough though, I've never noticed the orange through the lenses before. In fact, you can only just make them out in the photo. I must be blind.

D4VE · 28 Jun 2006 at 09:10

dammit, got home late and totally forgot to check the epc, Ill check tonight mate

cableguy2003 · 28 Jun 2006 at 10:48

agw_01 said:
You'd be very suprised Zip!

I had a hole, about the size of a 2p coin just after the cat. Cue no back pressure and thus, crap performance. My fuel economy didn't seem to suffer much though, which was weird.
:

The idea is to eliminate back pressure , the less back pressure the better , so that hole probably helped performance unless it was causing turbulance in the exit.

Also exhaust paste before the CAT will knacker it , you should use a gasket for that join.

D4VE · 28 Jun 2006 at 12:00

On an NA engine it is possible to have too little backpressure. It will become less responsive and wont pick up well at low revs.
I had a 2.5" system on my GTE 16v and it was worse at low revs than the 2.25" one I got later on.

agw_01 · 28 Jun 2006 at 12:04

I thought all engines needed a little bit of back pressure to perform well. As D4VE said, if the car has no back pressure, it won't pick up well from low revs. That's exactly what I found after fitting the new exhaust.

Right, here are a few vids. The quality is pretty rubbish to keep the size down (200kb each)... the inside the car video has bad quality on purpose... to hide my speedo

*cough* private road *cough*

I don't know if it's these crappy speakers on this computer, but I couldn't really hear that much of the exhaust apart from it being a bit raspy. This is because of the blowing at the cat, and not the actual tone of the exhaust.

But at least you can hear it's pretty quiet.

http://www.twobeds.com/upload/userfiles/agw_01/exhaustvids/exhaust1.avi

http://www.twobeds.com/upload/userfiles/agw_01/exhaustvids/exhaust2.avi

http://www.twobeds.com/upload/userfiles/agw_01/exhaustvids/exhaust3.avi

http://www.twobeds.com/upload/userfiles/agw_01/exhaustvids/exhaust4.avi

http://www.twobeds.com/upload/userfiles/agw_01/exhaustvids/inside.avi

cableguy2003 · 28 Jun 2006 at 12:47

D4VE said:
On an NA engine it is possible to have too little backpressure. It will become less responsive and wont pick up well at low revs.
I had a 2.5" system on my GTE 16v and it was worse at low revs than the 2.25" one I got later on.

Not true , the 2.5 inch system probably increased back pressure because the hot molecules were allowed to hang around inside the bore. Backpressure i.e stopping exhaust gasses from exiting is definately a bad thing.

MarkyMark · 28 Jun 2006 at 12:47

on the inside shot of ya car a warning light comes on the dash

no wonder it was the last video

I like the sound of it though.....Nothing too brash........just a bit of a rumble

thedazman67 · 28 Jun 2006 at 13:14

Doesn't sound too bad that, what was the warning light about

thedazman

cableguy2003 · 28 Jun 2006 at 13:22

Thats his handbrake light , hes running low on brake fluid.

agw_01 · 28 Jun 2006 at 13:22

MarkyMark said:
on the inside shot of ya car a warning light comes on the dash no wonder it was the last video

I like the sound of it though.....Nothing too brash........just a bit of a rumble

LMAO, I was hoping no-one would see that. It's the handbrake light. No idea why it does that, but it happens occasionally under hard acceleration in first gear.

Could be the handbrake switch or something. Don't think the car has sensors on the brake pads.

Thanks for the nice comment though. Hopefully, when I get the joins sealed properly it'll lose the raspyness. If you stand behind the car and hear it being revved, it's such a nice tone! Very deep but very quiet.

edit.... Ahhhhhhhhhhh, so that's what it meant Dan! I checked all the fluids this morning and the brake fluid is near MAX. Could it be anything to do with the leak from the rear hose?

D4VE · 28 Jun 2006 at 13:23

cableguy2003 said:
Not true , the 2.5 inch system probably increased back pressure because the hot molecules were allowed to hang around inside the bore. Backpressure i.e stopping exhaust gasses from exiting is definately a bad thing.

ok I guess Im on about flow velocity then.

My point is the same though, theres no point in putting an exhaust which is "as big as possible" on an NA car the right size needs to be found.

When I read "the less back pressure the better" alarm bells started ringing as I could see people fitting 3" bore systems to their 1.3 Fiestas hoping to get a quicker car out of it.