Jenko
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posted on 6/12/12 at 01:40 PM |
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J15 and aero...
What are peoples thoughts on the floor panel on the Sylva J15?....As per my blog, why not have it going to the very front of the chassis and also
beyond the rear bulkhead and itto the engine bay?????....Only reason I could see was that the chassis and panel would collect stones and mud
etc....Apart from that, it would keep the car generally cleaner, and improve aero.
MY BLOG - http://westfieldv8.blogspot.co.uk/
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edsco
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posted on 6/12/12 at 02:04 PM |
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YES! If you are looking for areo and therefore down force, keep the bottom of the vehicle as smooth as possible. I.e panel from the front right the
way to the rear most point of the car and incorporate a diffuser. When doing this though, make sure you have a detachable access panel that you are
able to service the engine i.e. filters oil change etc. Having it all enclosed....yeah sure you collect stones etc but you gain in performance!
(assuming you angle your diffuser correctly).
edsco
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Jenko
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posted on 6/12/12 at 02:12 PM |
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For the rear, I was thinking that just covering the chassis just behind the rear bulkhead would really help stop dirt etc being thrown up at the
engine, although the very bottom of the engine would still remain uncovered. Just can't think why this is not part of the standard build as
Sylva provide more than enough alloy sheet.
MY BLOG - http://westfieldv8.blogspot.co.uk/
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edsco
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posted on 6/12/12 at 02:46 PM |
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Well i guess its like any kit car build and the application you intend using it for. Its all open to interpretation at the end of the day. If the
design of the chassis and subsequently the location of the engine prevents panelling all the back because the engine pokes out the bottom or something
to that nature, i guess you are limited to what the design will allow.
Its preference at the end of the day and what you are happy with. RGB racer T Hoverd has a J15 it might be worth chatting to him.....through the
course of racing though his car has been modified somewhat over the years. Should be contacble through the RGB forum.
edsco
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monkeyarms
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posted on 6/12/12 at 02:55 PM |
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At the rear the sigma engines hang below the chassis line, particularly the gear change linkage. If you have a different engine/gearbox then you need
to check that.
When building the engine cooling system, access from below was handy at both ends of the car.
If you panel the rear of the car then the amount of air flowing into the engine bay will be reduced and could affect the temps as the air ducts each
side are small'ish.
Re visit the idea of removable panels futher on in the build I would say. Maybe even post IVA
Just looked at your blog - very nice
[Edited on 6/12/12 by monkeyarms]
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Jenko
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posted on 6/12/12 at 03:18 PM |
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quote: Originally posted by monkeyarms
At the rear the sigma engines hang below the chassis line, particularly the gear change linkage. If you have a different engine/gearbox then you need
to check that.
When building the engine cooling system, access from below was handy at both ends of the car.
If you panel the rear of the car then the amount of air flowing into the engine bay will be reduced and could affect the temps as the air ducts each
side are small'ish.
Re visit the idea of removable panels futher on in the build I would say. Maybe even post IVA
Just looked at your blog - very nice
[Edited on 6/12/12 by monkeyarms]
I'm using the puma engine, but not suggesting the entire rear is covered...I was thinking the area just behind the rear bulkhead upto the first
wishbone bracket.....Agree though...maybe a post IVA actavity.
MY BLOG - http://westfieldv8.blogspot.co.uk/
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adithorp
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posted on 6/12/12 at 04:01 PM |
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You'll need to take into account where the hot radiator air is going to escape if you panel the front. On my Fury that goes down the tunnel and
out between the diffuser/rear tub and a little out vents in the side of the bonnet, down the exhaust side pod and some through the wheel arches. Will
there be enough flow through the (smaller) J15 tunnel?
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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Jenko
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posted on 6/12/12 at 04:25 PM |
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quote: Originally posted by adithorp
You'll need to take into account where the hot radiator air is going to escape if you panel the front. On my Fury that goes down the tunnel and
out between the diffuser/rear tub and a little out vents in the side of the bonnet, down the exhaust side pod and some through the wheel arches. Will
there be enough flow through the (smaller) J15 tunnel?
Very good point...Certainly on the front, the cut out is directly under the rad....maybe this is one of the reasons for it being open.
MY BLOG - http://westfieldv8.blogspot.co.uk/
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monkeyarms
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posted on 6/12/12 at 05:36 PM |
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To be honest I think it will just be another flat surface for grit and dirt to build up on. For example, behind the front wheels there is a part of
the sill that gets lots of road grit build up, just from drining up and down my road 2 or 3 times.
I will need to look at closing the wheels in at some point.
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nickm
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posted on 6/12/12 at 08:52 PM |
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Hi
I thought the same but decided to wait till after IVA then think about it seriously, but this is also the numpty who cut the normal floor flush to the
chassis rails with no overhang !!!!
Nick M
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adithorp
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posted on 6/12/12 at 09:06 PM |
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You probably know this but... If thats the front wheel, that tyre is rotating the wrong way; Needs to be on the other side.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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monkeyarms
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posted on 7/12/12 at 08:46 AM |
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quote: Originally posted by adithorp
You probably know this but... If thats the front wheel, that tyre is rotating the wrong way; Needs to be on the other side.
They were crappy build wheels
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