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General Car Related Discussion.To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.
I saw a escort Cosworth at croft last year with a nms trouser section that was twin scroll for a gt35/40 (can't remember which one) looked a nice piece of work and the car was good power can't remember exactly but somewhere in the region of 700 bhp.
Yeah it was and it was flying round track, when speaking to Karl about it he said they were developing a new inlet for it and going for more power I'm sure he mentioned something like 800hp.
Lovely car and great people that were there very helpful
lol I take my advice and opinion of the tuner I use and when he talks about the massive improvement in low down torque and response and you see the real results he gets I'm ok with spending a little more. The horse power number is good but the torque number and how low down it builds torque and horse power is the bigger picture
lol I take my advice and opinion of the tuner I use and when he talks about the massive improvement in low down torque and response and you see the real results he gets I'm ok with spending a little more. The horse power number is good but the torque number and how low down it builds torque and horse power is the bigger picture
lol I take my own advice and experience into consideration first
low down torque is never going to be great on any 2 litre engine running 700 hp.
if a 2wd manifold was a big restriction it wouldnt make 700 hp, I saw it with my r33 gtr, 084 ar housing maxed out at 560 whp it just wouldn't make anymore power and I was told by a tuner the turbo is just flat out no point changing housing.
but I trusted myself that it was the problem and mark confirmed it should make more power and I bought a 1.06 housing, remapped the car and it make 660 whp at the same boost ! which was then backed up by over 1 second being knocked out of the 30-130 mph time.
the housing was a restriction on the exhaust side and it just couldn't flow anymore air, but if nms have made 700 hp with a standard 2wd manifold it proves they flow very well, obviously not as well as a manifold with bigger bore pipework but it is still more than capable of flowing the air required.
Well Marks debt collect has been over to collect the money for the manifold and whilst Rod was going on about the height difference between him and Mark I had this picture in my mind
Interesting read, has made me wonder if its worth buying a tubular now! As can get the t4 welded on for free, but then comes down to mapping it twice if it doesn't work very well!
Might have to suck it up and order one as well
Great link that, superbly designed engine I can only imagine how clever the cosworth engineers would of been working with 80's technology and still came up with arguably the best 2.0 engine to date
Thanks for sharing that explains it all really and twinscroll is nothing new.
Good reading.
Paul
Its just took years to get to the mainstream
Originally Posted by stevieturbo
Interesting indeed ! Certainly there is nothing that looks restrictive about them, although they are a cunt to get at all the bolts lol
They are that indeed Maybe restrictive is the wrong word to use but response I would say after talking tro Mark and Julian and the like as they have not only see boost come in earlier but quicker build up as Julian has done a few road cars now too and used standard mabifolds and tubular ones and tbh from my point of view and not taking spending 1k lightly it was the best way always round rather than making things fit ect and with talking to the above
Mike and Keith are legends thats for sure.
I understand where you are coming from Jay regards ease of fitment and all that and the added fucking about getting something to fit.
As i do shit like that on a daily basis and it can become a chore.
If cosworth had there own way there would have been many dead 80's sales reps and estate agents.
04-04-2016, 03:22 AM
