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Exhaust building advice needed
Dave Ashurst - 2/1/09 at 04:40 PM

I need a decent new exhaust.

I bought a westfield competition stainless steel exhaust manifold but it doesn't fit my locost. It clashes with the chassis diagonal where it wants to exit the engine bay.

Silly me. Never mind. but what to do next? Sell the westfield manifold or chop it?

I made my last exhaust system by chopping and rearranging an existing one. Happy do the same with this one but it seems a shame to cut into a nice piece of kit.

Those that have done it - how much does it cost to make one from bought pipes bends and flanges?

I'd be making a 4 into 1 from 1 5/8" headers and a 2" tailpipe

Any advice generally on economical sources of flange and pipe for exhaust builders?

tia
DaveImage deleted by owner


prawnabie - 2/1/09 at 04:44 PM

GET RID GET RID LOL

I bought one of those for mine, ended up cutting and rewelding the diagonal brace.

After that I had to buy a gear reduction starter motor as the manifold fouled the solenoid.

After that I had to get some spacers machined up to push the manifold out to clear the new starter.

With the silencer I bought it all ended up costing me like £500!

Shaun


Dave Ashurst - 2/1/09 at 04:54 PM

Getting closer to hitting the go button on my draft ebay ad now!

What should the "buy it now" price be do you think?


Dave Ashurst - 2/1/09 at 05:01 PM

Really keen to know though -

how much it has cost people to make an exhaust system from bought pipes bends and flanges?

tia
D


liam.mccaffrey - 2/1/09 at 05:03 PM

I know NS Dev did this and documented it. it might be worth a look for a post by him

£100 enough material to do 2 iirc

From Nats Photos
exhaust 2
exhaust 2


[Edited on 2/1/09 by liam.mccaffrey]


Benzine - 2/1/09 at 05:11 PM

quote:
Originally posted by Dave Ashurst
Really keen to know though -

how much it has cost people to make an exhaust system from bought pipes bends and flanges?

tia
D


I've just made my own exhaust for my straight six. Laser-cut flange was £50, silencer £70, then I got loads of steel bends for £2 each + a few meters of straight pipe.


prawnabie - 2/1/09 at 05:19 PM

I paid around £120 for my westfield manifold off ebay - seen them go for 150 too.


MikeR - 2/1/09 at 05:20 PM

I just cut the diagonal brace on my chassis, welded it 2" higher by the firewall and its fine.

Seemed a lot easier to me

Actually, i think you should sell the car and build a new one around the exhaust :p

NS Dev bought a industrial 2nd hand tig and the bends for less than a brand new simpson exhaust + had enough bends left over to make another exhaust.

If you're happy with stainless wire in a mig i'd guess you're looking at easily under a hundred quid.


Dave Ashurst - 2/1/09 at 05:21 PM

quote:
Originally posted by Benzine

I've just made my own exhaust for my straight six. Laser-cut flange was £50, silencer £70, then I got loads of steel bends for £2 each + a few meters of straight pipe.


Hey Benz,

You're not far away from me, where did you get your bits? esp the flanges?

thanks
Dave


mark chandler - 2/1/09 at 05:22 PM

Mine was around £125 which included an R1 can.

Made the collectors, ended up with a couple of bends over.

Purchased

8 x 90degree 1.5" stainless elbows
1m x 1.5" stainless straight tube
1m x 2" stainless straight tube
R1 can included the link pipe, very important!

Regards Mark


907 - 2/1/09 at 05:32 PM

If it's any help:-

I've just bought a 6M length of 2" 316 for a job. £11 per metre.

2" 316 bends were just under £8 each.

From Aalco.


HTH
Paul G


Dave Ashurst - 2/1/09 at 05:37 PM

quote:
Originally posted by MikeR
I just cut the diagonal brace on my chassis, welded it 2" higher by the firewall and its fine.

Seemed a lot easier to me

Actually, i think you should sell the car and build a new one around the exhaust :p

NS Dev bought a industrial 2nd hand tig and the bends for less than a brand new simpson exhaust + had enough bends left over to make another exhaust.

If you're happy with stainless wire in a mig i'd guess you're looking at easily under a hundred quid.



Hey Mike,

Tempting though it is to build another car round the exhaust.......

Problem is I'm booked on a hillclimb driving school in April (xmas present from my lovely wife) and have to get the car under a legal noise level and tuned before then.

How does your car handle with the chassis bracing modified like that??

It would be great to catch up btw, long time no see. Do you fancy a post-holiday cleansing ale with the S Brum guys on Monday night?

best
Dave


Benzine - 2/1/09 at 05:48 PM

quote:
Originally posted by Dave Ashurst
Hey Benz,

You're not far away from me, where did you get your bits? esp the flanges?

thanks
Dave


Flange was from wayne (Idontbelieveit) on this forum. The bends were from lolocost, I turned up and they had boxes of various bends, I got about 12 (m/s btw) they also had ss bends.

[Edited on 2/1/09 by Benzine]


paulf - 2/1/09 at 11:47 PM

Hi Dave have a look on the Milner automotive site , they stock bends tube and silencer parts.
Paul


Dave Ashurst - 3/1/09 at 01:45 PM

Hi Paul,

Thanks had a look and bookmarked it.

Hope you're well, family enjoyed the holidays and Santa came etc.

See you again soon I hope.

best
Dave


Simon - 3/1/09 at 08:47 PM

All the stainless for both my exhausts (one each side) came to about £200 (not the ones in my avatar, they were mild steel and would advise not to use as rusts too quick) - see blog instead.

I made manifolds from 316 butt weld tube (allstainless.co.uk/com?), can't remember who supplied manifold flanges, had turbo flanges cut to my design and rest od pipework (for can/perforated tube/straight tube and 3" bends were from milner offroad.

Lot of time - especially the polishing

ATB

Simon


Dave Ashurst - 3/1/09 at 08:57 PM

Simon
Thanks for that.

Then I had a look for exhaust photos in your archive and got distracted...



car on road
car on road


car on road
car on road



Did you delete your ex?


Dave Ashurst - 3/1/09 at 09:11 PM

quote:
Originally posted by 907
If it's any help:-

I've just bought a 6M length of 2" 316 for a job. £11 per metre.

2" 316 bends were just under £8 each.

From Aalco.


HTH
Paul G


Paul
Thanks for that - found their website and Aalco looks the real business. I think I'll give them a call.
Dave


Simon - 4/1/09 at 02:43 AM

Dave,

That's my sis-in-law - I figured she might not want to be plastered all over the internet, and the Mrs might not be too impressed with me not having a pic of her in car

It was taken by my bro - him and his sprogs went by tintop to pub, Sherene in toy car. I think you can tell she was enjoying it!

Quite a good photoshop job I think

ATB

Simon

[Edited on 4/1/09 by Simon]


Simon - 4/1/09 at 03:03 AM

Here's the o/s exhaust manifold



Nearside ex:



Offside ex:



Car will be red again one day

ATB

Simon

[Edited on 4/1/09 by Simon]


Dave Ashurst - 4/1/09 at 05:46 PM

cool