Relph
|
| posted on 24/7/12 at 12:51 PM |
|
|
Hayabusa sump options ???
Hi guys, what sump are you guys running ?
Standard sump with baffle, billet sump, billet sump with swinging pick up, dry sump system.
Not sure what to go for and the pros and cons of them ?
Cheers
[Edited on 24/7/12 by Relph]
|
|
|
|
|
Twin40
|
| posted on 24/7/12 at 01:39 PM |
|
|
I was in a similar situation myself, really depends on what you intend to use the car for - 'spirited' road driving a swing/billet sump
should suffice, when you start adding sticky tyres or track days into the equation then dry sump would be prefferred.
|
|
|
Jon Ison
|
| posted on 24/7/12 at 04:35 PM |
|
|
Shortened baffled sump, accusump no problems encountered current engine been thrashed to within an inch of it's life for four years now.
|
|
|
Relph
|
| posted on 26/7/12 at 11:09 AM |
|
|
Hi, whats the difference between a dry sump and an accusump ?
Cheers.
|
|
|
ReMan
|
| posted on 26/7/12 at 11:42 AM |
|
|
quote:
Originally posted by Relph
Hi, whats the difference between a dry sump and an accusump ?
Cheers.
£2000? 
www.plusnine.co.uk
|
|
|
Relph
|
| posted on 28/7/12 at 09:47 PM |
|
|
So im thinking a billet sump with swinging pick up and an accusump should do me for spirited driving and the odd track day ?
|
|
|
eddie99
|
| posted on 29/7/12 at 12:00 PM |
|
|
Depends how good billet sump, if its as good as the 1ltr bike engines that are around, then no need for accusump unless your on slicks/downforce.
Stick with just billet sump + swinging pickup.
http://www.elitemotorsporteng.co.uk/
Twitter: @Elitemotoreng
Facebook: http://www.facebook.com/pages/Elite-Motorsport-Engineering/153409081394323
|
NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
|
Custardpants
|
| posted on 30/7/12 at 09:58 PM |
|
|
I ran an accusump and didn't like it at all. It took oil away from the engine at high rpm, and I had to rev the engine to 6k to reprime the
accusump before turning the engine off. I wish I'd just gone straight for a Dry sump or just picked another engine.
In my hindsight I'd either go for just a holeshot swinging pickup/billet pan with money in the bank for a rebuild, or go for the dry sump route.
|
|
|
Jon Ison
|
| posted on 30/7/12 at 10:54 PM |
|
|
quote:
Originally posted by Custardpants
I ran an accusump and didn't like it at all. It took oil away from the engine at high rpm, and I had to rev the engine to 6k to reprime the
accusump before turning the engine off.
I understand you may have to rev the engine to prime it but how can it take oil away from the engine at high revs, or any revs for that matter ?
|
|
|
parkiboy
|
| posted on 31/7/12 at 07:32 AM |
|
|
My car is using a holeshot billet sump with Swinging pickup and seems to cope well on the road but yet to get her on a track
|
|
|
Custardpants
|
| posted on 31/7/12 at 08:57 AM |
|
|
quote:
Originally posted by Jon Ison
quote:
Originally posted by Custardpants
I ran an accusump and didn't like it at all. It took oil away from the engine at high rpm, and I had to rev the engine to 6k to reprime the
accusump before turning the engine off.
I understand you may have to rev the engine to prime it but how can it take oil away from the engine at high revs, or any revs for that matter ?
When the engine is at higher rpm, the increase in oil pressure pushes the accusump piston back, reducing the level of oil in the engine. In reality
it's not that big a deal, as a drop in oil pressure in the engine will result in an oil injection from the accu, but I just hate the concept of
having a completely varying amount of oil in the engine depending on rpm. An accu won't also really work at idle under heavy braking as it
won't be primed.
|
|
|
Nick DV
|
| posted on 31/7/12 at 12:42 PM |
|
|
quote:
An accu won't also really work at idle under heavy braking as it won't be primed.
Have to disagree. Have a read of the following, it may help.
http://www.accusump.com/accusump_tech.html#whatis
http://www.accusump.com/accusump.pdf/instructions.pdf
Cheers, Nick
"The force will be with you, always!"
|
|
|
Custardpants
|
| posted on 31/7/12 at 04:52 PM |
|
|
quote:
Originally posted by Nick DV
quote:
An accu won't also really work at idle under heavy braking as it won't be primed.
Have to disagree. Have a read of the following, it may help.
http://www.accusump.com/accusump_tech.html#whatis
http://www.accusump.com/accusump.pdf/instructions.pdf
Cheers, Nick
By all means elaborate Nick - the busa engine runs very low pressure at idle without an uprated OPG. The accusump doesn't know the difference so
will have already injected its store of oil into the engine when it drops to idle. I only ran one in a busa for a year so that's based on my
limited experience-it would be Interesting to see what an engine builder/racer has to say, rather than just "read the instructions!"  .
|
|
|
Jon Ison
|
| posted on 31/7/12 at 05:36 PM |
|
|
I have run one on my busa for four years, it's simple I switch it off during my cool down lap thus it sits there charged ready to pre oil the
engine upon the next start up. To say it will discharge under braking is a bit miss informed, unless of course you put your foot on the clutch and
keep it there during all the down shifts then pull to the side of the track let it tick over for 15 seconds before you accelerate away, very rarely
see the revs drop below 6000rpm downshifting on track myself, if they do I've made a mistake.
I do on average 8 track days per year, as others will testify when I do a track day it's nothing unusual for me to do up to 2 hour long sessions
at a time (see current Blyton thread) never had a sniff of trouble and this is on a STD 1999 engine that as been in the car 4 years, it's well
maintained but well abused.
For the record personally I wouldn't consider a swinging pick up, there designed for straight-line drag racing, if they turned 360 degrees then
maybe but they don't and in the right (or wrong maybe) corner situation they can be caught and stuck away from the oil rather than swinging to
where the oil is.
Imho the accusump is fine installed correctly and used as its designed to be used.
|
|
|
Relph
|
| posted on 31/7/12 at 07:42 PM |
|
|
Cheers guys for your replys and messages you given me alot to think about.
Hi Jon, think my dad and me chatted to you on sunday at blyton track day about your shortened sump and accusump, your car was going and sounding sweet
mate.
|
|
|
Jon Ison
|
| posted on 31/7/12 at 09:36 PM |
|
|
Remember the conversation well, small world ?
You saw the car on track, wasn't exactly tip toeing around, absolutely no oiling problems, would recommend the electric set up I have though,
think we discussed it ?
Basically the accusump does not relaese any pressurised oil until the engine oil pressure drops below 30psi, this means the oil level is not
constantly fluctuating as suggested above (to be fair with a manual valve it would) as for the sump Martin of MK engineering did it for me, it's
not just shortened it also has internal baffles around the oil pickup, he welded a boss on for we to tap for oil temp sensor.
|
|
|
Nick DV
|
| posted on 1/8/12 at 07:31 AM |
|
|
quote:
By all means elaborate Nick - the busa engine runs very low pressure at idle without an uprated OPG. The accusump doesn't know the
difference so will have already injected its store of oil into the engine when it drops to idle. I only ran one in a busa for a year so that's
based on my limited experience-it would be Interesting to see what an engine builder/racer has to say, rather than just "read the
instructions!" .
Hi C/Pants,
Only put the instructions on here for others to reference in order to help, not because I just "read the instructions"!
Jon says it all really, but my answer would be the same, I do not know why even on braking and downshifting your engine would drop to idle - unless
you kept the clutch disengaged.
Cheers, Nick
"The force will be with you, always!"
|
|
|
