Anyone using an oil catch can?

Anyone using an oil catch can?

Author
Discussion

mailer555

Original Poster:

227 posts

130 months

Thursday 28th July 2016
quotequote all
If so, what are you using and what's recommended? All I can find is universal kits and not one direct for the VXR8.

SturdyHSV

10,083 posts

166 months

Thursday 28th July 2016
quotequote all
mailer555 said:
All I can find is universal kits
The only bit that would need to be specific to the R8 would be some hose, which I would imagine you'd be expected to sort yourself as it's just some rubber hose.

Gurmeet (gsd2000) got the catch can I'm using, on a Monaro, but it's by no means Monaro specific, it's just a can with a straight arm that bolts to the cylinder head.

Mud_

2,924 posts

155 months

Thursday 28th July 2016
quotequote all
Mine's a UPR one, but I had to make a bracket to fix it to the end of the head.

Are you FI? I'm finding NA I've caught sod-all...but at least it's not lining the intake I guess.

Behold81

2,931 posts

168 months

Thursday 28th July 2016
quotequote all
Mud_ said:
Mine's a UPR one, but I had to make a bracket to fix it to the end of the head.

Are you FI? I'm finding NA I've caught sod-all...but at least it's not lining the intake I guess.
mine is vented to air as I need a 1 way valve that fits.

But it's caught about 1mm of oil in 2 years.

Mud_

2,924 posts

155 months

Thursday 28th July 2016
quotequote all
Behold81 said:
mine is vented to air as I need a 1 way valve that fits.

But it's caught about 1mm of oil in 2 years.
Mine's probably similar - so little it can't really be measured...doesn't cover the bottom of the can.

mikeyb1987

2,356 posts

153 months

Thursday 28th July 2016
quotequote all
Hi mate,

I'm running a twin can from Saikou Michi. Delivery was fast and it's well made.

Mike

jameshsv

5,844 posts

159 months

Thursday 28th July 2016
quotequote all
This is fitted to my engine.

Gelf VXR

713 posts

206 months

Friday 29th July 2016
quotequote all
mikeyb1987 said:
Hi mate,

I'm running a twin can from Saikou Michi. Delivery was fast and it's well made.

Mike
Same here, waiting to install

MyM8V8

9,456 posts

194 months

Friday 29th July 2016
quotequote all
The problem with catch cans is that they will only catch oil that has condensed. Even NA over time you will find that the inside of the intake is covered with a film of oil. This is the result of the oil vapours that come from the crankcase, condensing.

All the catch cans I have seen (which are simple plenum chambers) have NO way of coalescing the vapours which will still get through.

Catch cans work to an extent, and the problem is much worse with FI, but will not completely cure the problem. Which is, that any oil retained in the mixture will drop the octane rating and thus performance, and the oil film will prove a drag on airflow.


minime68

399 posts

134 months

Friday 29th July 2016
quotequote all
I had a dual Saiku Michi can and it caught quite a bit of oil. Then again, I had a bit of blow by to begin with. Now I run a Mighty Mouse race can vented to atmosphere from both valve covers and eliminated the factory PCV.

mailer555

Original Poster:

227 posts

130 months

Friday 29th July 2016
quotequote all
cheers guys. Anyone that was on the run last week would have seen that I'm putting out some smoke on the overrun! so thought I'd get it checked out and was told to try a catch can first, he explained that with the smoke on the overrun that this could be the best thing to try first. He warned me though that most of the universal kits are not baffled and do f all, so make sure you buy a baffled one, just asking if you guys have any that you'd recommend or have fitted already that work well?
Mikey, where did you get yours from?

mailer555

Original Poster:

227 posts

130 months

Friday 29th July 2016
quotequote all
minime68 said:
I had a dual Saiku Michi can and it caught quite a bit of oil. Then again, I had a bit of blow by to begin with. Now I run a Mighty Mouse race can vented to atmosphere from both valve covers and eliminated the factory PCV.
I seem to be in the same position, where did you order your cans from?

minime68

399 posts

134 months

Friday 29th July 2016
quotequote all
Well, the SMC can I ordered from Ben@weaponxmotorsports. Mighty Mouse I ordered from a distributor who helped build my twin turbo kit...presence distribution.

Mud_

2,924 posts

155 months

Friday 29th July 2016
quotequote all
MyM8V8 said:
The problem with catch cans is that they will only catch oil that has condensed. Even NA over time you will find that the inside of the intake is covered with a film of oil. This is the result of the oil vapours that come from the crankcase, condensing.

All the catch cans I have seen (which are simple plenum chambers) have NO way of coalescing the vapours which will still get through.

Catch cans work to an extent, and the problem is much worse with FI, but will not completely cure the problem. Which is, that any oil retained in the mixture will drop the octane rating and thus performance, and the oil film will prove a drag on airflow.
Mine has the top half packed with coarse wire wool type stuff (optional extra) - hopefully that goes some way to pulling the oil from the air. I did wonder if it causes too much of a restriction, will have to remember to try blowing through it some time.

Behold81

2,931 posts

168 months

Friday 29th July 2016
quotequote all
Water injection will sort the oil film. Especially with a bit of meth.

mikeyb1987

2,356 posts

153 months

Friday 29th July 2016
quotequote all
mailer555 said:
cheers guys. Anyone that was on the run last week would have seen that I'm putting out some smoke on the overrun! so thought I'd get it checked out and was told to try a catch can first, he explained that with the smoke on the overrun that this could be the best thing to try first. He warned me though that most of the universal kits are not baffled and do f all, so make sure you buy a baffled one, just asking if you guys have any that you'd recommend or have fitted already that work well?
Mikey, where did you get yours from?
I got mine direct: http://www.saikoumichi.com/

MyM8V8

9,456 posts

194 months

Friday 29th July 2016
quotequote all
MyM8V8 said:
The problem with catch cans is that they will only catch oil that has condensed. Even NA over time you will find that the inside of the intake is covered with a film of oil. This is the result of the oil vapours that come from the crankcase, condensing.

All the catch cans I have seen (which are simple plenum chambers) have NO way of coalescing the vapours which will still get through.

Catch cans work to an extent, and the problem is much worse with FI, but will not completely cure the problem. Which is, that any oil retained in the mixture will drop the octane rating and thus performance, and the oil film will prove a drag on airflow.
I might as well piss against the wind.

gsd2000

11,515 posts

182 months

Sunday 31st July 2016
quotequote all
MyM8V8 said:
MyM8V8 said:
The problem with catch cans is that they will only catch oil that has condensed. Even NA over time you will find that the inside of the intake is covered with a film of oil. This is the result of the oil vapours that come from the crankcase, condensing.

All the catch cans I have seen (which are simple plenum chambers) have NO way of coalescing the vapours which will still get through.

Catch cans work to an extent, and the problem is much worse with FI, but will not completely cure the problem. Which is, that any oil retained in the mixture will drop the octane rating and thus performance, and the oil film will prove a drag on airflow.
I might as well piss against the wind.
I agree, but a catch can is better than nothing

MyM8V8

9,456 posts

194 months

Sunday 31st July 2016
quotequote all
gsd2000 said:
MyM8V8 said:
MyM8V8 said:
The problem with catch cans is that they will only catch oil that has condensed. Even NA over time you will find that the inside of the intake is covered with a film of oil. This is the result of the oil vapours that come from the crankcase, condensing.

All the catch cans I have seen (which are simple plenum chambers) have NO way of coalescing the vapours which will still get through.

Catch cans work to an extent, and the problem is much worse with FI, but will not completely cure the problem. Which is, that any oil retained in the mixture will drop the octane rating and thus performance, and the oil film will prove a drag on airflow.
I might as well piss against the wind.
I agree, but a catch can is better than nothing
I will design one myself that works.

gsd2000

11,515 posts

182 months

Sunday 31st July 2016
quotequote all
MyM8V8 said:
gsd2000 said:
MyM8V8 said:
MyM8V8 said:
The problem with catch cans is that they will only catch oil that has condensed. Even NA over time you will find that the inside of the intake is covered with a film of oil. This is the result of the oil vapours that come from the crankcase, condensing.

All the catch cans I have seen (which are simple plenum chambers) have NO way of coalescing the vapours which will still get through.

Catch cans work to an extent, and the problem is much worse with FI, but will not completely cure the problem. Which is, that any oil retained in the mixture will drop the octane rating and thus performance, and the oil film will prove a drag on airflow.
I might as well piss against the wind.
I agree, but a catch can is better than nothing
I will design one myself that works.
But some of the cheap cans available are just open cans which to me are pointless, i would be interested in your design smile

Have you not considered a vac pump, especially on the 457?