Oil Capacities

[chris_seven]

I have just been looking through my Service Manaual and seen the various oil capacities of the different models:

The data that I have is as follows:

1972 2.4 8.0 litres

1973 2.7 10.5 litres

1974 Carrera 13.0 litres

I guess the difference between the 2.7 and the Carrera is the extra capacity for the oil cooler.

I wondered if anyone had any information about oil tank capacities from the 2.0 litre through to the 3.2 litre?

We are trying to build a SWB car with the tank mounted ahead of the rear wheel and were considering using a 1972 oil tank but I don't like the look of the capacity reduction.

I have seen various posts about increasing the size of this style of tank but I am concerned not to make a mistake.

[livi]

I only know that the 3.2 also has 13 liters. I suspect it is the same with the SC in between.

[safe]

Do not confuse the oil tank size with total oil capacity.
You don't know (or do you?) what kind of oil cooler, if any, was included for the 72 and 73 you mention.

Total capacity for a 2.7 with a trombone oil cooler is 12-13 liters (I measured mine)

[chris_seven]

That's why I am trying to find out about tank capacities rather than the complete system.

My copy of the workshop manual specifies 'initial fill' for all models except the 2.4 where it lists the S, T and E all having the same capacity!

[Eagledriver]

These numbers are confusing and probably not helpful. I have a 72 oil tank and so do several of my friends I race with. The 72 tank seems to be the only one that works without modification for the track. It does seem to have a little less capacity but the shape of the tank ensures that the pickup at the bottom never cavitates. We run the tank right up close to the anti foaming screen and don't seem to have any problem.

The other stock tanks need to be enlarged and baffled to keep the pickup from starving under heavy braking. The best solution is a large racing tank in the front smugglers box.

-Andy

[Eagledriver]

If you are not building a track car then the capacity is not important. All years have plenty of oil.

-Andy

[chris_seven]

We are building a Rally Car that will be used on gravel and asphalt and I am not too keen on a front oil tank because of pipework.

The car is a 1966 SWB and currently has a standard tank but we are planning to move it ahead of the rear wheel. Sounds as if we replicate the standard 72 tank in aluminium we shold be OK.

[safe]

Won't you already have the pipework for a front mounted oil cooler?

[chris_seven]

There isn't any pipework for a front cooler as this has never been fitted and external lines would be destroyed in a very short time.

[safe]

Run braided hydraulic lines inside the car. Porsche fitted external oil coolers on all production cars with over 160 Hp. I think you would want one in a rally car.
I have a friend that has a 2.4 S (190 hp) without an external cooler, it gets very hot on the track, ~130+ C, this is in Sweden.

[chris_seven]

Our car has an FIA engine which is reputedly built in Sweden by a tuner called Perry (?). It runs on Solexes and producesd about 190 BHP. Do you know of this company?

It has never had an auxilliary cooler fitted and runs at an indicated oil temp of 90 degC and is very consistent. We have checked the calibration of the gauge and it is correct to a couple of degrees. We checked because we were surprised that temps we so low.

We had two engines with the car both from the same tuner and the second unit was sold and rebuilt by a colleague. This engine was boat tailed, half mooned and knife edged to what seems to be a good standard.

It has a large oil pump, by pass mods but doesn't have squirters.

I had planned to try to continue to get away without a second cooler due to weight and if oil temp stays at 90 deg C I assume it will be OK.

[safe]

Yes, Perry has a very good reputation in Sweden, very good work and reasonable prices (compared to Porsche Centers), no personal experience.
90 deg C, that is amazing!

[chris_seven]

Magnus,

I agree that the temp appears too low which is why we checked the calibration with an accurate electronic thermometer. I don't know how to account for this feature but we rev the engine routinely to 8000rpm.

I assume that the engine oil cooler is a standard size. The last time the car was used competitively was in July 2005 and ambient temperatures wer around 30 degC and the longest Stage was 24 miles!

Do you have any contact information for Perry as I cannot find them from a web search.

Thanks

[safe]

The company is called "Perrys Motor i Kolbäck AB".
Address:
Herrskogsv. 12
73494 STRÖMSHOLM
Phone: +46 220-43358

Here is a link to a map. I dont think he has a web page.
http://www.hitta.se/ViewDetailsPink.aspx?SearchType=4&UCSB%3aWflWhite=1a1b&UCSB%3aWflPink=4a&UCSB%3aTextBoxWho=Perrys+Motor&UCSB%3aTextBoxWhere=&Vkiid=tMRNxPoKr84KCrcCzIc6Xw%3d%3d&Vkid=11122622

[chris_seven]

Magnus,

Thank you for your help.