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Old 04-09-2009, 13:13   #1
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Product launch - Pace Dry Sump Kit

With the amount of highly tuned Evo’s increasing as tuning methods improve, naturally more of these cars are heading for the track, either at enthusiast level or all-out competition. For maximum reliability, the inherent weaknesses in the standard oil control system need to be addressed. As a natural by-product of improved power levels and advanced chassis/handling techniques, cornering speeds may be increased to such a level that , under certain circumstances, critical areas of the engine could be starved of oil, resulting in catastrophic failure of the engine.

APT are pleased to announce the launch of the enhanced version of Pace Products Dry Sump kit for the Mitsubishi 4G63 engine, as fitted to Evos 4 to 9.



Following extensive testing of the current kit by Pace Products, undertaken in conjunction with APT, several areas of improvement have been identified, concentrating on simplifying the oil routing and enhancing the endurance capability.

A CNC machined, billet aluminium front cover has been designed, incorporating a roller-bearing arrangement for the camshaft drive belt. This component serves to simplify the system and take away the main causes of unreliability in past kits.

The cast aluminium sump pan will feature a retained O-ring seal between the sump pan and the cylinder block.

The pump mounting bracket has been revised in order to move the pump further away from the exhaust and turbo. This is necessary with the advent of modern turbo kits and large diameter exhausts.

This kit will be offered exclusively from APT, as a bolt-on solution with no requirement to modify standard engine components. Kit prices start at £1995 including VAT and are available for pre-order immediately, with the first production kits expected in early October.
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Old 04-09-2009, 13:19   #2
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So the old one did not work?
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Old 04-09-2009, 13:44   #3
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So the old one did not work?
The old kit is still in use on various cars, this is a more user-friendly completely updated version.

Last edited by [email protected]; 04-09-2009 at 14:19..
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Old 04-09-2009, 18:03   #4
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dont suppose you fancy a guinee pig who would try and buy and then sing your praises at evry possible opportunity.......please
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Old 04-09-2009, 18:28   #5
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dry sump

PM me a price please
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Old 04-09-2009, 20:52   #6
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Just out of interest

How much vacuum can the scavenge pump(s) maintain with the engine running at 2.5bar boost (engine build quality assumed!)

Ta!

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Old 05-09-2009, 23:47   #7
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I take it the standard oil pump has now been removed from the front cover and replaced with an idler?
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Old 06-09-2009, 12:48   #8
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Quote:
Originally Posted by clivew View Post
I take it the standard oil pump has now been removed from the front cover and replaced with an idler?
IIRC the (what was oil pump pulley) is now replaced with oil fed roller bearing idler.

While dry sump concept is so simple, quite why it had taken this long to get a decent bolt on kit is beyond me Still... Through the redesign and production of this new billet front cover, PACE & APT have bypassed the need to work with the stock (convoluted) oil pathways.

Well done lads
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Old 08-09-2009, 21:29   #9
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what a great way to get products that work. manufacturer and tuner input
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Old 08-09-2009, 21:33   #10
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could you pm me some prices and more info please
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Old 08-09-2009, 21:40   #11
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Originally Posted by leecavturbo View Post
what a great way to get products that work. manufacturer and tuner input
Tuner reply would be interesting (phone call planned)
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Old 09-09-2009, 18:16   #12
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sorry for slow reply guys

for thoses that want prices check out the first post its on bold letters

clive yes as ross says it has im hoping to have some real pics asap to get on here to show

grant i put your answer to pace and here's there quick reply,if you need any more give me a shout

Quote:
The short answer is that we have not measured it yet. The primary purpose of the kit is to provide a consistent oil supply to the engine during exuberant cornering which is a known problem with the standard Evo oil system.



It is assumed that the question has been prompted by wanting to reduce crankcase windage losses.

To promote a vacuum in the crankcase the scavenge pumps will need to collect the moderately aerated oil and blow-by gasses in a completely sealed engine.



A note of caution, there is a view that more is better and too much is just right!

If the crankcase is over aggressively scavenged then the effective resistance that is provided by the main and big end bearings is reduced. That means that more oil flow will be required in order to maintain a given pressure. In extreme examples the crankcase vacuum can suck the oil from the bearings causing engine failure, problems may also be experienced with the lip seals as they are not designed to have a negative pressure in the crankcase.
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Old 09-09-2009, 19:22   #13
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Thanks Gary & Pace

I am, or the engine builder is, aware of issues in a sealed engine. There are two reasons for wanting a partial (0.6BarA typical) vacuum is windage but equally important is change in crank case pressure (logged in ECU) which equals potential engine wear

The spec of a typical engine is that it runs 3+BarA at < 3000rev/min but only has usable power at < 6000rev/min (turbo restrictor ). With a wet sump engine a refresh is recommended half way through the season, after circa 300miles!!

To add further complications a 5/6 stage pump is typically used;

2 * sump scavenge
1 - turbo scavenge
1 - engine pressure
1 - PAS
1 - Diff pressure!!

That little lot has probably wetted your appetite I'll give you a call, probably Friday re "bits" of the kit

Grant

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Old 09-09-2009, 21:43   #14
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Originally Posted by Gary @ APT View Post
sorry for slow reply guys

for thoses that want prices check out the first post its on bold letters

clive yes as ross says it has im hoping to have some real pics asap to get on here to show

grant i put your answer to pace and here's there quick reply,if you need any more give me a shout
Gary, your first thread says starting from £1995..... is it this price or are there other things to factor in, thats why i asked for more details mate
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Old 10-09-2009, 06:47   #15
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argh i see

the price above will be for all components that are on the engine so pump,sump,new front cover etc but doesnt include a tank or oil filter housing

once i get pics to show what you will get ill price other parts and am hoping to price a complete kit with all parts needed


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Gary, your first thread says starting from £1995..... is it this price or are there other things to factor in, thats why i asked for more details mate
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