ClioSport.net
Register a free account today to become a member!
Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
-
When you purchase through links on our site, we may earn an affiliate commission. Read more here.
Where do I buy 120mm trumpets from?
- Thread starter Martin.
- Start date
No there's no benefit to the larger bore, 45mm is absolutely fine for our engines (they can cope with 65bhp per cylinder which would be 260bhp).
Yes they fit (I've got them on my 172 - check my progress thread).
You buy them direct from Jenvey (http://www.jenvey.co.uk/home/access.../jenvey-dynamics/air-horn-48mm-x-120-ah48x120)
They're £30 each plus vat - so £144
Yes they fit (I've got them on my 172 - check my progress thread).
You buy them direct from Jenvey (http://www.jenvey.co.uk/home/access.../jenvey-dynamics/air-horn-48mm-x-120-ah48x120)
They're £30 each plus vat - so £144
Last edited:
Emerald are basically tubes with a mouth at the end though right?
More air the bigger you go, suits a higher spec engine but I have built so I have scope to forge etc in the future. Its worth porting everything together as the Jenvey castings are pretty poor tbh. I mistakingly bought the 48mm trumpets to begin with not knowing the differences but it now means I have 48mm taper bodies which is something Jenvey don't sell afaik.
More air the bigger you go, suits a higher spec engine but I have built so I have scope to forge etc in the future. Its worth porting everything together as the Jenvey castings are pretty poor tbh. I mistakingly bought the 48mm trumpets to begin with not knowing the differences but it now means I have 48mm taper bodies which is something Jenvey don't sell afaik.
Sorry this is getting very confusing
Clio bodies are 48mm
They are tapered 45mm at the head and 48mm at the trumpet.
I read your post in a rush and though you meant you'd opened up the head end to be 48mm
If you've got 48mm at the trumpet tapering down to 45mm at the manifold/head - then that's a standard Clio 172 kit from Jenvey
They use SF48 bodies
Clio bodies are 48mm
They are tapered 45mm at the head and 48mm at the trumpet.
I read your post in a rush and though you meant you'd opened up the head end to be 48mm
If you've got 48mm at the trumpet tapering down to 45mm at the manifold/head - then that's a standard Clio 172 kit from Jenvey
They use SF48 bodies
See above.
You can see the difference in length between 90mm and 120mm here
I use a carbon backbox from reverie and a C603D (I think) pipercross filter - it all clears fine.
I use a carbon backbox from reverie and a C603D (I think) pipercross filter - it all clears fine.
But everyone doesn't have a Clio specific kit on their car. Mine were 45mm parallel which were then opened out 48mm at the 'mouth' to meet up with the 48mm trumpets I bought.
Best to measure what you have as there's a few combinations kicking about, Jenvey will do all sorts sizes custom for you on there CNC.
Best to measure what you have as there's a few combinations kicking about, Jenvey will do all sorts sizes custom for you on there CNC.
The problem is with the emeralds is they have a very narrow opening and are parallel the whole way through
You lose a fair bit of torque without that taper
The 120mm trumpets taper from what I think is around 60mm down to 48mm then the bodies themselves taper from 48mm to 45mm - so you get a nice tapered inlet all the way to the head. Great for torque delivery.
You lose a fair bit of torque without that taper
The 120mm trumpets taper from what I think is around 60mm down to 48mm then the bodies themselves taper from 48mm to 45mm - so you get a nice tapered inlet all the way to the head. Great for torque delivery.
Good point but I'd assume the OP has the individual setup as it's far more common than the twin setup.
I think they stopped selling the twin setup about 5 years ago!
I think they stopped selling the twin setup about 5 years ago!
Yep chrispy's setup was identical to mine - individual SF48's on a jenvey clio manifold
So the ones I linked you to will fit.
The bonnet on my car was touching the foam filter so I cut the inner skin out - loads of room now
So the ones I linked you to will fit.
The bonnet on my car was touching the foam filter so I cut the inner skin out - loads of room now
£144?
How do I contact your friend ;P
Have to disagree seeing as emerald have tested taper to none taper and found no difference.
http://www.emeraldm3d.com/articles/cat/projects/post/emr-adj-length-intake/
A shed
Danny was there for the testing
AFAIK he just doesn't like emerald ECU's
And as per emeralds testing there is no benefit to tapered trumpets, length is all that matters
AFAIK he just doesn't like emerald ECU's
And as per emeralds testing there is no benefit to tapered trumpets, length is all that matters
can't stand the ecu software. Dave's a decent guy though. Told him straight that the software was aweful while stood in his dyno room, while he was mapping a williams I took there as it had an emerald fitted previously. same car we tested some of his adjustable trumpets on
I cut the whole of the bit out that has the bonnet latch on, then the ends of the strengthening bars I just ground the ends flat with a grinding disc on a dremel.
I'll be honest it's not very pretty to look at because the strengthening bits are actually glued to the skin too - so pulling them off dented the bonnet. But it's practical lol and I think I'm going to replace my bonnet with a carbon fibre or fibreglass one next year anyway so it'll do for now.
A shed
Back onto where to get 120mm trumpets ive emailed this guy http://danstengineering.co.uk/ to try and persuade him to get some 120's made up. His 90's are only £15 each.
Would many others be interested if he needs a group of people?
Would many others be interested if he needs a group of people?
Neil are they a trumpet spacer or a body spacer? PM a pic if you have one, I might have them.
A shed
just an update on this - he says he can do them at that price if we have 5 people interested
so anyone interested?just an update on this - he says he can do them at that price if we have 5 people interested
I'd be up for some. But want them pretty soonish to be honest. Are his spun alloy too?
A shed
they are spun alloy
delivery was £7 so £67 delivered for four. Lead time is 15 days from having 5 people so if youre in a rush we might not get enough in time I'd still spend the extra on the tapered Jenvey ones
What's the point on scrimping on a £2k throttle body setup?
What's the point on scrimping on a £2k throttle body setup?
Can move the injectors further out then too if you put them between the body and the manifold.
How do these work then? Off to look for pics now
Like this mate:
(the bits between the manifold and the plenum, look kind of like bodies but without the spindle)
On an ITB setup you can use them to add length either between the body and the manifold or between the body and the trumpet
