At present these are totally open so I run the risk of sucking debrise into the engine.
What can I do/use to prevent damage without restricting airflow?
Trumpets
Following on from my rolling road results yesterday I wanted to gauge opinion on the throttle body trumpets I'm using.
At present these are totally open so I run the risk of sucking debrise into the engine.
What can I do/use to prevent damage without restricting airflow?
Trumpets
You just wanted to show off didnt you 
use a decent quality air filter 
I'd suggest a nice big plenum at least 1.5* engine capacity with a K+N cone type filter strapped onto the end of suitable size.... With a bit of luck you'll even increase BHP....
ITG Megaflow with suitable (custom) backplate.
The little wire baskets that fit at the bottom of the trumpet, keeps your engine looking cool and keeps out the large bits of crud, although small bits will still pass through it - they are basically seives for the trumpet.
What about a pair of your wife's-Gfriend's tights?
quote:
Originally posted by l0rd
What about a pair of your wife's-Gfriend's tights?
Don't use any of the gauze thingy's - they don't stop much and they significantly reduce the effective size of the trumpets.
Go socks, sausage, flat panel or cone filter - the bigger the better [less resistance]!
I'm running socks through the bonnet on my Silvertop at the moment, but am changing to a flat panel filter under a scoop to try to quieten it
down a bit. Silvertops are great engines BTW!!!
I've just noticed your engine mounts. They look like ones supplied by RAW? If so you may want to consider adding extra stiffening as I managed to
bend both engine mounts on my engine. For example in the picture above I just welded in a triangle on the right to to match the left side.
As for your question I would say a large plenum with a cone filter would be the first choice. This also reduces the induction noise for trackdays.
Then a large panel or dome filter would be next. Socks will definitely reduce the effect of the trumpets. The air flow in to the trumpets starts from
behind the curved lip of the opening so anything near there wil have an effect.
I'm sure you've seen mine before but here's a pick of the one I bought from Malaysia via Ebay. There are cast trumpets inside the
plenum. Not quite up to the quality of spun trumpets but good enough.
Plenum & Exhaust - front
[Edited on 3-6-09 by bimbleuk]
[Edited on 3-6-09 by bimbleuk]
This is the sort of thing Justin bought on ebay - no idea how this compares but looks the job.
http://cgi.ebay.com/ebaymotors/TOYOTA-4AGE-20V-INTAKE-MANIFOLD-Levin-AE92-AE86-4AG_W0QQcmdZViewItemQQ_trkparmsZ66Q3a2Q7c65Q3a1Q7c39Q3a1Q7c240Q3a1318Q7
c301Q3a0Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem5189b92fa7QQitemZ350202965927QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
That link failed but if you put in 4age 20v and check out all the international sellers it'll be there.
Item number: 350202965927
[Edited on 3/6/09 by oldtimer]
[Edited on 3/6/09 by oldtimer]
quote:
Originally posted by oldtimer
This is the sort of thing Justin bought on ebay - no idea how this compares but looks the job.
http://cgi.ebay.com/ebaymotors/TOYOTA-4AGE-20V-INTAKE-MANIFOLD-Levin-AE92-AE86-4AG_W0QQcmdZViewItemQQ_trkparmsZ66Q3a2Q7c65Q3a1Q7c39Q3a1Q7c240Q3a1318Q7 c301Q3a0Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem5189b92fa7QQitemZ350202965927QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
That link failed but if you put in 4age 20v and check out all the international sellers it'll be there.
Item number: 350202965927
[Edited on 3/6/09 by oldtimer]
[Edited on 3/6/09 by oldtimer]
Thanks for the replies.
The plenum does look good and I'm going to need one if I go down the Rotrex supercharged route in future.
I'm not sure the wife would be too keen on me using her tights (and I'm not using mine either).
She is also unlikely to be too keen on the £400 cost of the plenum once shipping and duty is factored in!
I might go for the socks as a short-term solution and then get the plenum as part of a winter project.
quote:
Originally posted by oldtimer
This is the sort of thing Justin bought on ebay - no idea how this compares but looks the job.
http://cgi.ebay.com/ebaymotors/TOYOTA-4AGE-20V-INTAKE-MANIFOLD-Levin-AE92-AE86-4AG_W0QQcmdZViewItemQQ_trkparmsZ66Q3a2Q7c65Q3a1Q7c39Q3a1Q7c240Q3a1318Q7 c301Q3a0Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem5189b92fa7QQitemZ350202965927QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
That link failed but if you put in 4age 20v and check out all the international sellers it'll be there.
Item number: 350202965927