HSV Dyno day Oct SRR
Discussion
ringram said:
Useless.
I can only see one.
Where is the table and info like someone stated they were doing..?
Might as well have gone to the pub and made some numbers up.
Nevermind someone competent will have to go next time and do it properly!
I thought you said you were doing it? Then you couldn't go.I can only see one.
Where is the table and info like someone stated they were doing..?
Might as well have gone to the pub and made some numbers up.
Nevermind someone competent will have to go next time and do it properly!
All credit for what you've done in the past, but does it really matter? Some managed to miss the puddle (you really need to sort that Charlie) so had dry tyres, then it rained, then it was dry, then it rained. Does that invalidate the wet or dry results?
There's quite a few result in the results thread. so let's see what transpires over the next few hours, as people are getting home.
BTW, you missed a good social.
GaryNoGrip said:
Wyld Stallyn said:
Me Happy with a 377.2 WHP 
But What's my Bolx Horse Pubfactor (BHP
) No. ???
Is it a %age or a fixed figure for the Drive-train losses??
I am also interested in how this is worked out as goldy and 007's results that are posted would suggest it's not a calculationBut What's my Bolx Horse Pubfactor (BHP
) No. ???Is it a %age or a fixed figure for the Drive-train losses??
Those who need the fly for bragging rights, can have a word with SRR, and they may be able to tell you from the file number on your graphs.
Goldy and 007 are just tarts.
GaryNoGrip said:
stigmundfreud said:
Build quality, post your print out up and afrs if you have them so we can look. Was it going too rich?
All I can see with my limited knowledge of power output is that is was looking f
king good at the start!Edited by GaryNoGrip on Saturday 18th October 20:14
Interesting that your car pulls well from low down, which is the bit that you usually use on the road - which is why you're probably happy with how it goes. At least now that you know there's something not quite right, you can address it BEFORE you have a failure.
ringram said:
R8VXF said:
ringram said:
No official results then?
Quite a few logged in the results thread already.I can only see one.
Where is the table and info like someone stated they were doing..?
Might as well have gone to the pub and made some numbers up.
Nevermind someone competent will have to go next time and do it properly!
Edited by R8VXF on Saturday 18th October 20:57
EmmaJ said:
It's definitely oily smoke from the exhaust not oil and the catch can is plumbed "inline" with the breathers coming from the crank case to the catch can and then onwards to the air intake. The can also has a manual oil return line back to the sump (which will ultimately have a non-return valve fitted so that it'll automatically drain down but for quickness it's currently fitted with a temp manual drain tap.
The reason for fitting the catch can was that I had oil misting issues and oil was being chucked out of the breathers and into the air intake and I use to get a puff of smoke on upshifts. That's been solved by fitting the can so oil must be getting in the exhaust some other way (I think) either past the piston rings or via the exhaust valve seat seals - maybe.
Next steps is the vent the catch can to somewhere other then the air intake and see if it's allowing oil through it (which I doubt). If it isn't then we'll be looking at something internal in the engine
.
That's the gory truth and it sounds worse than it probably is, so there isn't much point in speculating further without hard facts.
Where in the air intake ? open air near the air filter inlet ? Or do you mean within the sealed area of the intake manifold ?The reason for fitting the catch can was that I had oil misting issues and oil was being chucked out of the breathers and into the air intake and I use to get a puff of smoke on upshifts. That's been solved by fitting the can so oil must be getting in the exhaust some other way (I think) either past the piston rings or via the exhaust valve seat seals - maybe.
Next steps is the vent the catch can to somewhere other then the air intake and see if it's allowing oil through it (which I doubt). If it isn't then we'll be looking at something internal in the engine
.That's the gory truth and it sounds worse than it probably is, so there isn't much point in speculating further without hard facts.
It should be easy to see if the can is allowing oil past...as well...you'll see the oil in that area.
Oil past the exhaust guides/valves is rare, simply because there is almost always higher pressure in there to prevent it happening other than at shutdown. Plus the valve stem seals should eliminate oil there too. Certainly it would need to be a major problem to cause visible smoke, especially under load due to a valve guide problem.
Pistons/rings, unless the seal is very poor, they still shouldnt smoke.
My engine's been used and abused for 4 years now, had a few problems and does breathe much heavier than I'd like.
But with a good can/breather setup it doesnt pass any oil at all externally, and exhausts are always clean and smoke free.
A drain back to the sump from the can should be fully automatic. This drain ideally should be below the level of the oil in the sump so crankcase pressure doesnt blow back up into the bottom of the can. Not totally critical, but ideal is below the level of oil
A can with a return in that manner requires almost no maintenance.
Does the engine actually use much oil ?
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