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[quote="bobbber"]On my 8v I had the straight configuration, and then later I had the "crossover" one too. I will state these were both original Alfa exhausts though (none of your fancy stuff!) Some points I noticed : 1. The straight seemed to have decent power through the range, whereas the crossoever wasn't generally as good apart from at 4,000rpm (ish) where it was much better. I think this is to do with the variable tuned lengths in the straight which handles all rpm decently. In the crossover, due to it's equidistant design it was tuned more to one frequency and therefore just some rev ranges. 2. Much of the unique "boxer" sound seemed lost with the crossover - I remember it sounding completely undistinct. HOWEVER, like I said, this was just a standard exhaust setup on an 8valve and it wasn't a patch on that work of art you've got there Rich! Edit : I'm a little confused now actually, as I thought my crossover looked like the one John_33_16v has in his photo but thought that it was equal length pipes which the photo clearly isn't. Just going for a lie down. Bob[/quote]
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Topic review
Author
Message
BigAl
Posted: Wed Feb 17, 2010 12:21 pm
Post subject:
That was me above
Guest
Posted: Wed Feb 17, 2010 12:20 pm
Post subject:
dont think its on yet, re crossover, which version is the correct way to get exhaust gas flow to assist in extraction, i would hope the csc?
I will be looking to get one soon i hope, thats if there still available
rsfruitbat
Posted: Thu Mar 20, 2008 9:05 am
Post subject:
Hi Rich
Have you managed to get that sexy manifold on yet?
If not is there any achance of some dimensions?
I am after, if possible lengths and diameters of the primary pipes, secondary pipes and dia of the final pipe.
Did you notice that comparing the std Xover and yours they join different cylinders?
Much appreciated if this is possible.
rsfruitbat
PS if it is not fitted why not??????
BigAl
Posted: Sun Jan 27, 2008 4:03 pm
Post subject:
Thanks Rich, I’m sure I saw it somewhere, glad you finally got your money back.
Rich B
Posted: Sun Jan 27, 2008 1:12 pm
Post subject:
Al - I mentioned it in an earlier post, it was 450 euros (approx £350) including delivery. A little more expensive than a certain supplier but at least I actually got it!!! Finally got a cheque the other day after threatening legal action
BigAl
Posted: Sat Jan 26, 2008 8:22 pm
Post subject:
Quote:
Al - I ordered the manifold from CSC by contacting them via the "contact us" part of the website (www.csc-marmitte.it) but if you want the email address of the sales department, its
office@csc-marmitte.it
- the lady is called Veronica and couldn't be more helpful.
Thanks Rich B, sorry its been a while since i replied, im feeling a little sad not having a working car. How much was it? I cant for looking see on their web site, it used to be there im sure.
Rich B
Posted: Thu Jan 24, 2008 8:22 pm
Post subject:
john 33_16v wrote:
Very nice.
Having had 145 clover with supersprint from cat back, i can heartedly recommend these:
http://www.diymonkey.co.uk/product.php?ASIN=B000UQDPBU
John
Thanks John!! I've already got Supersprint cat back system and I don't find it too bad at all. If you want loud try an OMP group N system on a 33, that makes your ears ring after a long trip!!!!
john 33_16v
Posted: Thu Jan 24, 2008 2:01 pm
Post subject:
Very nice.
Having had 145 clover with supersprint from cat back, i can heartedly recommend these:
http://www.diymonkey.co.uk/product.php?ASIN=B000UQDPBU
John
Rich B
Posted: Thu Jan 24, 2008 12:19 am
Post subject:
being a flash sod, I've treated myself to a nice manifold for my 145 too (its a Supersprint in stainless steel and very nice it is too!!)....
yours smugly
Rich
bobbber
Posted: Wed Jan 23, 2008 10:52 pm
Post subject:
lee16v wrote:
That was a shock in itself
You're right!!!! I thought someone had put a photo of George Clooney on my exhaust to start with!
johnboy
Posted: Wed Jan 23, 2008 8:12 pm
Post subject:
lee16v wrote:
bobbber wrote:
Wiped some of the dirt off... saw my reflection!
That was a shock in itself
Hi guy's
Rich ok chap
your manifold is called the unequal length crossover manifold
regards john.
lee16v
Posted: Wed Jan 23, 2008 6:31 pm
Post subject:
bobbber wrote:
Wiped some of the dirt off... saw my reflection!
That was a shock in itself
Rich B
Posted: Wed Jan 23, 2008 3:52 pm
Post subject:
johnboy wrote:
Hi rich
can you post photo's of your manifold your selling as i want to see which type it is.as there are different types of crossover.
regards john
its exactly the same as the picture john 33_16v posted - its for a 16v cat car and has a flange at the point where it joins the centre box. Don't get too excited though, it'll be a while before I can remove it....
john 33_16v
Posted: Tue Jan 22, 2008 9:11 pm
Post subject:
bobbber wrote:
Wiped some of the dirt off... saw my reflection!
RESULT! Powerflow Stainless on there!
Jammie Beggar
bobbber
Posted: Tue Jan 22, 2008 8:57 pm
Post subject:
Talking about exhausts.... I was under 'er the weekend.
Nasty old dirty exhaust under there! Wiped some of the dirt off... saw my reflection!
RESULT! Powerflow Stainless on there!
Bob
johnboy
Posted: Tue Jan 22, 2008 8:43 pm
Post subject:
Hi rich
can you post photo's of your manifold your selling as i want to see which type it is.as there are different types of crossover.
regards john
Rich B
Posted: Tue Jan 22, 2008 8:32 pm
Post subject:
Al - I ordered the manifold from CSC by contacting them via the "contact us" part of the website (www.csc-marmitte.it) but if you want the email address of the sales department, its
office@csc-marmitte.it
- the lady is called Veronica and couldn't be more helpful.
Bobbber, thanks for your comments, I found with standard non cat manifold and (VERY loud) OMP centre box, the power was all top end, on the motorway, acceleration from 80-120mph was very good (not so good on the ears though!). When I recatted and put on a normal cat manifold, I found there was a bit more torque low down although I'm not sure how much of this was down to the removal of the group N centre box or the crossover manifold. I didn't find the lovely boxer sound was any different with either type of manifold, just louder with the OMP system!!
rsfruitat - not sure about ground clearance, doesn't look like it'll be a problem, in fact I think the standard crossover manifold projects a bit more anyway, particularly the pipe that goes to the left front cylinder. Don't think I'm gonna do before and after power runs as my engine won't be running until its rebuilt and then it won't be standard, it'll have flowed heads and posh cams, maybe a bit more capacity and a change of ECU....
bobbber
Posted: Thu Jan 17, 2008 10:27 am
Post subject:
On my 8v I had the straight configuration, and then later I had the "crossover" one too. I will state these were both original Alfa exhausts though (none of your fancy stuff!)
Some points I noticed :
1. The straight seemed to have decent power through the range, whereas the crossoever wasn't generally as good apart from at 4,000rpm (ish) where it was much better. I think this is to do with the variable tuned lengths in the straight which handles all rpm decently. In the crossover, due to it's equidistant design it was tuned more to one frequency and therefore just some rev ranges.
2. Much of the unique "boxer" sound seemed lost with the crossover - I remember it sounding completely undistinct.
HOWEVER, like I said, this was just a standard exhaust setup on an 8valve and it wasn't a patch on that work of art you've got there Rich!
Edit : I'm a little confused now actually, as I thought my crossover looked like the one John_33_16v has in his photo but thought that it was equal length pipes which the photo clearly isn't. Just going for a lie down.
Bob
rsfruitbat
Posted: Thu Jan 17, 2008 8:42 am
Post subject:
Hi Rich B
Your new manifold looks the dogs dangly bits
. Someone else has mentioned that the problem with the old ANSA manifold was how much ground clearance was lost. Can you tell if your new manifold is the same depth as a standard one or if its deeper, by how much?
Do you know what the power is before you fit the manifold and are you going to get it checked after? What improvements do they claim?
Regards rsfruitbat
BigAl
Posted: Wed Jan 16, 2008 8:38 pm
Post subject:
YEAH!!!!! You finally got it!!!
Im happy for you and if my car was working i would order one today, alas.
When you said you ordered it directly from csc, did you do it online?? or do they have a distributor in the uk or did you call italy?
johnboy
Posted: Wed Jan 16, 2008 12:13 am
Post subject:
Hi
Thanks rich
john
Rich B
Posted: Wed Jan 16, 2008 12:07 am
Post subject:
yep, its the same as the one in photo posted by John - it is for a cat equipped car, although I'm sure it could be adapted for a non cat car. I decatted my car a few years ago and used the normal non cat manifold. When I recatted the car for the new MOT, I refitted a crossover type manifold and didn't really notice any drop in power. The crossover manifold is much more efficient I think and made up for the losses from the cat.
It may take me a while to remove it, but if you're interested Johnboy, I'll give you first refusal...
johnboy
Posted: Tue Jan 15, 2008 11:43 pm
Post subject:
Hi rich
yes i could be chap if it's a crossover type
regards john
Rich B
Posted: Tue Jan 15, 2008 3:13 pm
Post subject:
john 33_16v wrote:
Hi,
Looks great. Just like one i had years ago on a sud, when they were called ANSA. With complete ansa system exhaust note was deeper and power kicked in like a turbo at 4,500rpm-6,000.
Only drawback (apart from cost!) was ground clearance.
Standard cat crossover manifold links same cylinders, ie pairing fronts and backs, but has awkward pipe around sump, for clearance/shortness.
John
Thanks for the photo John, its a great help - my standard manifold is still on the engine thats sitting on the floor of my garage so it would've been difficult to clearly see the difference. I'm very relieved to see they're quite different and good to hear you noticed a difference. I will report once fitted (although this could be rather a long time away!)
ANSA are still going by the way....
www.ansamarmitte.it
Yes Johnboy, standard manifold will be sold on, let me know if you're interested and I'll try to remove it from the engine for you.
johnboy
Posted: Tue Jan 15, 2008 10:36 am
Post subject:
Hi Rich
Does that mean your other crossover will be for sale
regards john