RaceDynamix STi - Time Attack 2009
01 October 2009, 03:04 PM
#392
Dry sump - Wikipedia, the free encyclopedia
Explanation works fine in a wikipedia sense.
real world explanation is:
1. oil surge kills engines.
2. Subarus suffer oil surge on high G corners (high the G the higher the oil surge)
Improvements in handling, set up, aero and driving a bit quicky creates G
Explanation works fine in a wikipedia sense.
real world explanation is:
1. oil surge kills engines.
2. Subarus suffer oil surge on high G corners (high the G the higher the oil surge)
Improvements in handling, set up, aero and driving a bit quicky creates G
01 October 2009, 05:32 PM
#394
no - the amount of hose needed to put the tank in the boot would be huge, expensive, unworkeable and dangerous.
Pictures will follow when we have fitted it...
06 October 2009, 08:02 AM
#399
Well, where do I start ?
Friday and with Paul and Liz at Kettering hospital and me snowed with work and deadlines, a dry sump tank was needed and neither of us could collect it from Pace Engineering.
We were going to be running a std off the shelf sump tank for speed of install rather than a custom designed tank, which will be an option in the final kit (or so I believe).
So, thanks to Ren and a quick blast down the M11 and the oil tank and some fittings arrived back at mine at about 11pm friday night - cheers Ren
Saturday morning and I arrived bright and early at Zen and proceeded to strip everything off the car that wasnt going to be needed or was in the way of the install. This was quite a lot and all of the morning was spent dis-assembling.
( and yes I do know my manifold was blowing )
Still to come off from that shot were cam belt so that the new water pump tensioner could be fitted along with the Zen adapted oil pump to provide the way into the engine oil system. This also meant that we could keep the oil filter, modine and oil cooler install 100% in the OE place.
Sump and oil pump assembled.
The sump was offered up and pump assembled so that I could start making oil lines. Braided hose and special black anodised fittings from HEL to match the lush black anodised dry sump pan from Zen really stood out and it was starting to take shape. Fire sleeve has since been added to the hoses that go near the headers.
Next was getting drive to the oil pump - this is via a piggyback pulley on one of the idlers on the cambelt. You can see it here after i cut the hole out of the cam cover. Very neat and a nice short belt to the oil pump.
Once the oil system was hooked up in place and other elements rigged to enable us to turn over the oil pump to shoot oil around the engine without turning the engine over. Paul wanted to see how quickly it would circulate oil and what kind of pressure we would see. It works very nicely and gave a VERY healthy psi even at about 2 rpm from a power ratchet attached to the front of the pump. Looking good so far but there was an issue requiring a slightly smaller pulley on the oil pump so the engine wasnt going to fire into life at the weekend afterall. Hey ho.
Paul and Liz kindly offered for me to stay at theirs again and work/finish it on Monday. Thanks
Monday was spent getting all the tank, fuel system moved, battery moved and generally getting it all back together awaiting on the new pulley.
The battery was going to move to the rear of the car - but we went for an easy option after seeing what space was left over getting the fuel swirl pot and pump moved from the chassis leg (now occupied by the dry sump oil tank) to the battery area.
This introduces few additional risks from the previous working configuration and Paul and I decided that this was the safest option with only a few days til the final round of Time Attack.
So, fuel lines extended where needed, battery leads moved and extended and new fittings for the swirl pot and pump were done and the fuel system was sealed.
As I said the dry sump oil tank was on the chassis leg we were about 2 inches short of height in that area and the top breather hoses caught on the bonnet - so should make shift 'persuading' and it was in. We have only done a temporary fitting of this tank for the moment - the final fitting will be a lot neater.
So ... there we are ... awaiting on a pulley before the engine can fire. This is being made today so it should be full systems go from then with just the headers to put back on.
Huge thanks to Paul, Liz, Steve Fulbrook, Tim, Ren and Wallis for the help.
Friday and with Paul and Liz at Kettering hospital and me snowed with work and deadlines, a dry sump tank was needed and neither of us could collect it from Pace Engineering.
We were going to be running a std off the shelf sump tank for speed of install rather than a custom designed tank, which will be an option in the final kit (or so I believe).
So, thanks to Ren and a quick blast down the M11 and the oil tank and some fittings arrived back at mine at about 11pm friday night - cheers Ren
Saturday morning and I arrived bright and early at Zen and proceeded to strip everything off the car that wasnt going to be needed or was in the way of the install. This was quite a lot and all of the morning was spent dis-assembling.
( and yes I do know my manifold was blowing
)Still to come off from that shot were cam belt so that the new water pump tensioner could be fitted along with the Zen adapted oil pump to provide the way into the engine oil system. This also meant that we could keep the oil filter, modine and oil cooler install 100% in the OE place.
Sump and oil pump assembled.
The sump was offered up and pump assembled so that I could start making oil lines. Braided hose and special black anodised fittings from HEL to match the lush black anodised dry sump pan from Zen really stood out and it was starting to take shape. Fire sleeve has since been added to the hoses that go near the headers.
Next was getting drive to the oil pump - this is via a piggyback pulley on one of the idlers on the cambelt. You can see it here after i cut the hole out of the cam cover. Very neat and a nice short belt to the oil pump.
Once the oil system was hooked up in place and other elements rigged to enable us to turn over the oil pump to shoot oil around the engine without turning the engine over. Paul wanted to see how quickly it would circulate oil and what kind of pressure we would see. It works very nicely and gave a VERY healthy psi even at about 2 rpm from a power ratchet attached to the front of the pump. Looking good so far but there was an issue requiring a slightly smaller pulley on the oil pump so the engine wasnt going to fire into life at the weekend afterall. Hey ho.
Paul and Liz kindly offered for me to stay at theirs again and work/finish it on Monday. Thanks
Monday was spent getting all the tank, fuel system moved, battery moved and generally getting it all back together awaiting on the new pulley.
The battery was going to move to the rear of the car - but we went for an easy option after seeing what space was left over getting the fuel swirl pot and pump moved from the chassis leg (now occupied by the dry sump oil tank) to the battery area.
This introduces few additional risks from the previous working configuration and Paul and I decided that this was the safest option with only a few days til the final round of Time Attack.
So, fuel lines extended where needed, battery leads moved and extended and new fittings for the swirl pot and pump were done and the fuel system was sealed.
As I said the dry sump oil tank was on the chassis leg we were about 2 inches short of height in that area and the top breather hoses caught on the bonnet - so should make shift 'persuading' and it was in. We have only done a temporary fitting of this tank for the moment - the final fitting will be a lot neater.
So ... there we are ... awaiting on a pulley before the engine can fire. This is being made today so it should be full systems go from then with just the headers to put back on.
Huge thanks to Paul, Liz, Steve Fulbrook, Tim, Ren and Wallis for the help.
Last edited by dynamix; 06 October 2009 at 08:03 AM.
06 October 2009, 07:46 PM
#406
06 October 2009, 08:11 PM
#409
I am 100% confident in it and in Paul at Zen's technical expertise to make it work.
This kit will become common place on almost all track going imprezas over the next few years across the world. Costing less than a rebuilt engine it has to make sense.
It is so compact and so beautifully made it is really a shame to hide it underneath the engine. I am therefore making a nice mirrored undertray so people can see it
This kit will become common place on almost all track going imprezas over the next few years across the world. Costing less than a rebuilt engine it has to make sense.
It is so compact and so beautifully made it is really a shame to hide it underneath the engine. I am therefore making a nice mirrored undertray so people can see it
06 October 2009, 11:37 PM
#410
\m/ ^_^ \m/
Looking good and the best of luck for the weekend One question, is this the final nail in the daily driver coffin? Or is there some clever way of priming the system every time you start the car? Old skool crank handle in the front bumper? Would also be interesting to see a before and after dyno run to see if there's any gains from running the system 
One question, is this the final nail in the daily driver coffin? Or is there some clever way of priming the system every time you start the car? Old skool crank handle in the front bumper? Would also be interesting to see a before and after dyno run to see if there's any gains from running the system
07 October 2009, 07:26 AM
#411
Not at all - although it depends on what class they make me run in next year as to whether it goes the full hog and the interior comes out, full cage in and a substantial weight loss programme is undergone. At the moment all I seem to be doing is adding weight to the car.
I am not sure it will need priming but testing today will determine if anything is needed.
Unfortunately we didnt do a before dyno run so wont know whether power gains from running it, but that wasnt the reason for putting it in.
Cheers Kevin - hoping for the best for sunday You coming along?
I am not sure it will need priming but testing today will determine if anything is needed.
Unfortunately we didnt do a before dyno run so wont know whether power gains from running it, but that wasnt the reason for putting it in.
Cheers Kevin - hoping for the best for sunday
You coming along?
07 October 2009, 10:51 AM
#412
\m/ ^_^ \m/
I hadn't planned on going, it's a long way to go just to watch I'll look forward to your's & Paul's post race observations on how it actually works in the real world
I'll look forward to your's & Paul's post race observations on how it actually works in the real world
07 October 2009, 11:03 AM
#414
just heading out to pick up the pulley and some O-rings and heading to zen to fire it up.
Fingers crossed it works as intended
Cheers for the support guys - it really means a lot and makes the pain, sweat, tears, and everything else worth it.
Fingers crossed it works as intended
Cheers for the support guys - it really means a lot and makes the pain, sweat, tears, and everything else worth it.
07 October 2009, 06:56 PM
#416
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youve got all the gizmos now matey. a most impressive build im watching this in earnest as i may be following you down this route. ill get one when you and paul sort any little niggles if there are any. good luck this weekend im sure you will secure the 2009 title, like kev said its a long way to just watch but so were the other rounds and i went to them, see how i feel saturday. best of luck duncan mite catch you there
im watching this in earnest as i may be following you down this route. ill get one when you and paul sort any little niggles if there are any. good luck this weekend im sure you will secure the 2009 title, like kev said its a long way to just watch but so were the other rounds and i went to them, see how i feel saturday. best of luck duncan mite catch you there
