Worzey
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| posted on 2/6/09 at 08:59 PM |
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Trumpet advice.
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
Caterham R400
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tomgregory2000
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| posted on 2/6/09 at 09:02 PM |
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You just wanted to show off didnt you   
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blakep82
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| posted on 2/6/09 at 09:02 PM |
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use a decent quality air filter 
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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BenB
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| posted on 2/6/09 at 09:08 PM |
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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....
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dhutch
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| posted on 2/6/09 at 09:28 PM |
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ITG Megaflow with suitable (custom) backplate.
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tomprescott
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| posted on 2/6/09 at 10:04 PM |
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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.
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l0rd
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| posted on 2/6/09 at 10:10 PM |
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What about a pair of your wife's-Gfriend's tights?
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Steve G
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| posted on 2/6/09 at 10:30 PM |
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quote:
Originally posted by l0rd
What about a pair of your wife's-Gfriend's tights?
I doubt she'd be too impressed!! Best he just uses a pair of his own stockings / tights hey?? 
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rick q
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| posted on 2/6/09 at 11:26 PM |
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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!!!
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bimbleuk
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| posted on 3/6/09 at 01:45 AM |
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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]
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oldtimer
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| posted on 3/6/09 at 07:24 AM |
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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]
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Steve Hignett
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| posted on 3/6/09 at 08:22 AM |
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EBAY LINK
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]
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Worzey
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| posted on 3/6/09 at 08:24 AM |
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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.
Caterham R400
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bimbleuk
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| posted on 3/6/09 at 06:00 PM |
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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
Actually that's the same seller if I remember correctly. His prices have gone up a bit but I made an offer and got 20-30% off the buy it now
price. The plenum shipped in 4 working days which was a welcome suprise. He was based in Malaysia when I bought mine originally.
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