Magnex exhaust to Janspeed manifold

[rubachuk]

I've spent the afternoon fitting a Janspeed 4:1 manifold and a Magnex exhaust. When I've come to connect the two they dont line up, they're about 3 inches apart and the about 35 degrees from lining up. Grrrrrr.

Should I have expected this? I presumed that they would maintain standard mounting points so as to be interchangable with standard parts.

Whats the solution? Do I need to find a Magnex manifold from somewhere?

Cheers

[tom_beverley]

Sounds like you have a GTE/GSI manifold and non GTE/GSI system [or vice versa].

Do you know for sure which is which? The GTE/GSI items are different to other Nova items

Solution would be to find a matching system/maifold - whichever you want to keep.

[Adam]

The system is either a sr system, and the manifolds to a 1600.
Or vice versa


Edit-Lol, tom beat me

[rubachuk]

Been back through and checked the parts for sale threads I bought them off.

The exhaust came off a Sport, same downpipe as the 1.3SR I'm fitting it to I thought.

The manifold is supposedly off a 1400.

I'll put the old exhaust back together and see how the position/angle of the mounting points compares to the Magnex.

[Adam]

Do you have any pics of the manifold/system off the car? Particularly the front pipe of the system

[rubachuk]

It's all still on the car, but I can get the exhaust off easy enough tomorrow morning - it's not like it's bolted to anything! I'll sort a photo then.

Visually comparing the front pipe of the Magnex to the original exhaust, there seems to be a kink of about 30 degrees about 6 inches from the end which means that even if they did reach each other, it wouldn't line up flat to the manifold.

[novacabrio]

Magnex never did a SR manifold so it must be a GTE GSI system you have?

[Ste L]

Magnex never did a SR manifold so it must be a GTE GSI system you have?


it's not a magnex manifold, it's a janspeed;)

[mowgli]

i'm sorry to be devils advocaat but why are you surprised that two different brands of modified exhaust aren't interchangeable???????
each firm will make sure their systems are different

[Ste L]

i'm sorry to be devils advocaat but why are you surprised that two different brands of modified exhaust aren't interchangeable???????
each firm will make sure their systems are different


they will be interchangeable..

as the exhaust system's mate up to standard manfold's...

so that mean's the manifold's will match a normal system

[mowgli]

they will be interchangeable..

as the exhaust system's mate up to standard manfold's...

so that mean's the manifold's will match a normal system

these don't

[Ste L]

these don't

that will be due to the system being an sr ehxuast, and the manifold being a gsi/gte one..



for example..

magnex used to produce, 3 different systems for the nova..

sr manifold back
gte/gsi manifold back
late gsi/SRi cat back..


also, standard sr and gte/gsi/sri downpipe's are different

[rubachuk]

Interesting that Novacabrio suggeted it might be a GTE/GSI system........ it's the system off your sport fella, fitted that OK I presume!?!?! Sold as for a 1.3SR.

There's a Magnex 4:2:1 manifold on ebay at the mo, listed as 1.2, 1.3, 1.4, 1.6. SHould I be looking at this or am I throwing good money after bad?

Will sort the pictures tomorrow

[mowgli]

the thing about a standard nova 4-2-1 exhaust is that the only restriction is where the 2-1 joins, they simply bent 2 pipes & rammed them in. in the olden days, people just cut the joint open & tidied the restriction up, & rewelded it.
instant performance exhaust. The backbox on a std setup is fairly restrictive though.

[novacabrio]

The exhaust is definitly a SR system, I have a standard manifold for it if needed, I sugested the manifold is a GSI system

[rubachuk]

I've had a fresh look this morning and taken a few pics as promised.

I've run the original exhaust alongside the Magnex and that would fit fine, its longer and doesn't have the bend in the end. Also if you look at the pictures, you can see the L shaped bracket which bolts onto the original downpipe. It lines up perfectly, the problem has to be with the exhaust. I thinks there's a code stamped into it somewhere, I'll get that off it a try talking to Magnex maybe.

Novacabrio - how'd you get this to fit? It was fitted when you got the sport right? So why are you so sure its the SR system? Do you say that just because it fitted the sport? I've tried the original manifold, but it gives me the same problem. Had yours been modded in any way?
http://i306.photobucket.com/albums/nn266/rubachuk/IMGP2177.jpg

http://i306.photobucket.com/albums/nn266/rubachuk/IMGP2180.jpg

http://i306.photobucket.com/albums/nn266/rubachuk/IMGP2178.jpg

[Adam]

HMm, that system looks like a gte/gsi for some reason. The front pipe is angled to the right......

[rubachuk]

What's the best of the mild steel systems available at the moment? The choise is limited to Ashley and Piper from what I can see.

These work out about the same cost as a 2nd hand stainless system although I know it won't last as long, and I can have one here tomorrow.

Also, I know this is a long shot, does anyone know if mild steel Janspeed systems for the SR can be sourced from anywhere? I had one on my first nova 10 years ago and loved the sound. Think they're discontinued though :cry:

[loggyboy]

That isnt a Magnex exhaust, its mild steel, they only produced stainless ones.

[novacabrio]

That isnt a Magnex exhaust, its mild steel, they only produced stainless ones.

Its a magnex one,

Here is the manifold I removed from the car

http://img.photobucket.com/albums/v190/novacabrio/P1010959.jpg

http://img.photobucket.com/albums/v190/novacabrio/P1010958.jpg

See here
http://www.pngclub.com/forum/showthread.php?t=99250

You can have it for the price of postage if you want it, postage will cost about £15

I also know its a SR system as the GSI system had a totaly differnt style tail pipe, it looked more like

http://i162.photobucket.com/albums/t277/gunny07/magne.jpg

http://i162.photobucket.com/albums/t277/gunny07/ma.jpg

not the SR style you have which looks like

http://img.photobucket.com/albums/v224/novaload/Parts%20for%20Sale/19062007112.jpg

http://img.photobucket.com/albums/v224/novaload/Parts%20for%20Sale/19062007113.jpg

[rubachuk]

Thats not an SR manifold, the SR downpipe goes into one pipe much higher up on the SR. I would guess that whoever had your sport before you changed the manifold for a GTE/GSI one to suit the exhaust they had, which still leaves me having bought an exhaust thats no good to me.

[loggyboy]

Ignore my comment about it not being a magnex, i was looking at the other picture thinking that the downpipe was front pipe...

[novacabrio]

It is from a SR mate, The GSI manifold is differnt. The off of the manifold is there the exhaust was sold in good faith and i'm trying to help you out by charging you only for postage on the bit you need

[rubachuk]

I'm not disputing that it was sold in good faith for a second, want to be clear about that. I know you're offering the manifold at postage cost also, but I have a performance manifold which I want use. Would be throwing good money after bad really.

Fact remains it doesn't fit an SR.

I have the code off it and I'll speak to Magnex this morning to see if they can shed any light on the issue. If I'm wrong I'll be happy to apologise for being an ar$e.

EDIT - http://www.migweb.co.uk/forums/car-talk/130699-janspeed-manifold-wont-fit.html

[rubachuk]

Yup.

Spoke to Magnex - XSVN09 as stamped on the system is to fit a GTE.

(XSVN05 is the 1.3SR number BTW)

Anyone want to buy an exhaust? :(

[Dod]

Get a flange welded onto it and the system to make it fit. Not a big job really.

[novacabrio]

Get the manifold from me, sell your 4 branch and use the money from it to buy a GTE manifold? Or as said adapt the manifold to fit?

[novacabrio]

I've sent you a pm got a solution for you

[Adam]

I did say it was from a gsi/gte...
Obvious from the front pipe angle.

Sr front pipe is straight. This is my old ashley sr system
http://img.photobucket.com/albums/v86/Nova-crew/Nova%20WIP%20pics/20-Ashley.jpg

And as you can see, yours is at a angle.


Simple solution is fit a gte/gsi manifold and downpipe

[rubachuk]

Gold star Adam, you did say it was from a GTE :thumb:

Got myself fixed up, went down the different exhaust route.

The Magnex will be in the for sale section as soon as I get a few pics of it.

Thanks all.