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Exhaust Manifolds - I need one
MikeR - 18/3/05 at 06:22 PM

Thats it! I've had enough.

I'm almost at the point of cutting my lolocost manifold into bits to try and make it fit and look decent (it exist half way up the side of the chassis and i don't like that look)

What is the best way to get an exhaust manifold with decent performance?

I've got a full caterham 4-2-1 rear exit system which isn't great for performance and i'm almost at the stage where i'm going to remake engine mounts and engine bay triangulation just to fit it........

HELP!


Jon Ison - 18/3/05 at 06:25 PM

Martin will make you a very nice custom stainless one, he as a loverly bender....


MK that is.


MikeR - 18/3/05 at 06:28 PM

yeah but thats going to cost a fortune

i'm not quite at the spending huge amount of dosh stage yet.......

but still very dejected.


Jon Ison - 18/3/05 at 06:32 PM

you may be suprised at the cost, but unless you buy or have one made its down too DIY skills,


Jon Ison - 18/3/05 at 06:34 PM

here's what u get for your money... Rescued attachment r1_fireblade_exhausts.jpg
Rescued attachment r1_fireblade_exhausts.jpg


JoelP - 18/3/05 at 07:05 PM

and it has to be said, those look damned impressive.


MikeR - 18/3/05 at 07:19 PM

what sort of price are we talking about here?


scutter - 18/3/05 at 07:44 PM

I cut my lolocost manifold to get it to fit, by using a 1mm disc in the angle grinder top and bottom leaving 10mm in the centre at the 3 and 9 o'clock positions then welding the resultant larger and smaller gaps up, you can then diegrind out any welds the project into the gas flow out of the way.

Sorry for the lame explanation, the results are show below.


test fitting
test fitting



new exhaust location
new exhaust location


ATB Dan.


MikeR - 18/3/05 at 08:44 PM

Cheers Dan,

Your picture highlights the problem for me.

I don't want the manifold exiting half way up the side of the car. Its a very personal thing but I want my manifold exiting near the bottom chassis rail - i just prefer that "look".

I've already cut the manifold from the header plate and think that I might be able to extend and angle the first couple of inches but then it ends up almost touching lots of bits (engine bay side triangulation and it also comes close to the passenger bulk head and bell housing.

Don't suppose you've got a side view further back so i can see what it really looks like - hopefully I'll change my mind.


scutter - 19/3/05 at 07:53 AM

Will get one over the weekend, my exhaust clears the TR tubes by 7-10mm hopefully enough to allow any engine movement.

ATB Dan.


MikeR - 19/3/05 at 11:44 AM

i've actually removed that tube and rewelded it on the bottom rail to make it a bit lower & still with it clearing by about 5mm i'm not happy .......... still looks in mid air!

NS Dev has probably persuaded me to make my own using stainless dairy bends.


scutter - 20/3/05 at 01:30 PM

new exhaust exit
new exhaust exit


Here's a side view Mike, sorry no exhaust but haven't the energy to fit it, circled is the upper edge of the tr tube in it's standard position.

ATB Dan.


NS Dev - 21/3/05 at 08:25 AM

forgot to email you the link for the cheap dairy bends, so I will put it on here, that way everybody can see it!

http://www.allstainlessltd.co.uk/


MikeR - 21/3/05 at 06:44 PM

daft question - is 1.5mm by 1.5" 'man' enough for an exhaust header?

Just slightly worried that my Lolocost manifold is 2mm


NS Dev - 22/3/05 at 09:23 AM

1.5mm is plenty man enough, but if you are worried, I can get hold of thicker (dunno on price yet) from Damstahl, who do pretty much anything stainless wise!!

I would worry about the weight of 2mm!


MikeR - 22/3/05 at 06:00 PM

aha, so i can claim this is a performance modification - going down to 1.5 mm from the lolocost 2mm exhaust........

damn, was thinking of using some of the 2mm bends + collector from the lolocost one !