any news of the billeted lm range yet????

still no sign on the litchfield website???

 

We have all the details and we have a big website update for next week

 

excellent...

thankyou....

 

I am on the list for a Billet wheel in my LM500.
I am not sure if I need the extra spooling speed, but hey! lets go for it.

 

lol, i thought the same...im like a magpie when it comes to shiny spinning bits....

thought id better read up about it first,....

 

Hi Iain, can you tell me the difference between the LM480 and LM500 please ?
I have already the LM480 but I wonder if I should not take the LM500 ....

 

come on iain, get that website updated......

 

I also would like to see the new web site.

I think he just to busy at the moment with buisness and family.

 

Hiya, those results look about right if the dyno run was measuring wheel PS.

Coming from AU, we get confused when u guys give flywheel numbers that can only be derived and therefore can't be accurate.

However at wheel figures are what is measured by the dyno and ultimately what matters in the real world...point being, I believe your dyno results ILYA are at the wheels (ATW). Alas yet another case of flywheel versus atw confusion...

We should perhaps agree to a worldwide standard being atw, therefore less prone to fudging and Disney Dyno figures

 

Those figures are flywheel according to the DD graph.

 

Right on, is there a specific coded indicator on the graph Shaun to indicate a flywheel result...if so, could u kindly point it out - sorry I'm not versed on DD coding?

 

The "S_" prefix on the vertical axis.

 

after another hour of mapping I have gone on another dyno and the results are still not that good, spool is bad and i wonder what the problem might be, the guy who is mapping my car has decent rep and has done more than a few cars with normal results.
my engine is almost on 50k km and I'm thinking if there is a hardware problem
what could cause such low spool? any thoughts?
the only other thing is that it s very hot these days in moscow, my car temp gauge showed +38C degrees

 

Have you checked for: condition of oil, boost leaks (pre turbo & after turbo), AVCS solenoids & AVCS oil feed/banjo bolt & checked engine compression?

 

You really need a boost plot on these graphs Ilya along with AFR's.

As for checking stuff.... I would look at the obvious stuff like compression, plugs, AVCS (Neutral Position Switch) - but then your mapper should of picked up an issue with the AVCS, if there were a problem in that area - air leaks (boost pipes, up-pipe, headers etc etc).

The heat wouldn't help your spool, but as that looks like a MAHA rolling road printout, you're some 1000+ rpm behind where it should be on that type of dyno and turbo.

What did your mapper say about it?

 

plugs are brand new, installed them with the turbo
I do remember that after some servicing done about half a year ago they checked and there was a problem with compression in one of the cylinders in fact, I thought I would address it at a later date, but maybe it is time
what does low compression really mean?
does this directly affect spool?
sry for maybe stupid questions, but thx for any help

 

I'm no engine expert.... but compression issues can effect power and also cause heat issues. If your compression is down on any specific cylinder, it could be caused by a ring, valve or headgasket problem for instance.

Your best best is to get your compression tested and first see what each cylinder is. Then how each cylinder compares against each of the others (in psi difference).

Are you using any oil or having temp issues?

As I see it, losing compression is a "leak" in the combustion chamber, so I would see it effecting spool.

 

i always thought that when this engine will develop a problem I will stroke it to 2.1 some naughty thoughts creep into my mind

 

just came back with some compression tests, all seems to be in order, all four cylinders are above 9.2 bar.
so if the block is good, we must look elsewhere.
next week we plan to check the exhaust manifold and up-pipe for any cracks and of course the turbocharger itself. the mechanic said that if the wastegate doesn't fully close, this could be the problem. I remember that there were few LMs with the waste gate issues, so will check if maybe I'm one of the lucky few, because so far this seems to be the problem.
at least now I know the problem is not in the engine itself.

 

Thank the lord compressor covers are in!!!!!!!!!!

 

I thought you were going for an SC46, the I last that I saw anyway.

I should have the 'full' results of my LM400 on the 19th, as when I had the mapping session with Bob Rawle my fuel pump was starting to fail so I will have an RCM pump fitted then Bob is coming down for a 'full fat map'.

But I have to say even on the 'restricted' map that Bob had to give me previously on a Simtek, the LM400 pulls a lot better and for a lot longer than the 'wheezy' VF36.

 

Still undecided to be honest, spoke to Ian regarding the LM's Mark @Lateral and Kev at scooby clinic. I was adamant that i'd be going for an SC but they didn't have any in stock and have been waiting for an update.

Is there that much difference between the stock turbo and LM?

Immy

 

Even running on a restricted map I can tell that the LM400 pulls for a lot harder and longer than the VF36, the stock turbo feels asthmatic by comparison.

Once you get the LM400 and get it mapped you will have a massive smile on your face, and they are capable of more than 400bhp.

 

How restricted is the map?

 

At a rough estimate I'd say that the car is running at around 80% of it's capability but TBH I didn't think to ask.

 

80% and you can only tell that it pulls alot harder in the higher rev range? So it's not blatantly quicker?

 

I'm going upon when the car was being mapped and before the fuel pump issue reared it's head, as the problem occurred on the mapping session and before that it was going like a scalded cat.

I can say without a shadow of a doubt that the difference is noticeable like night and day, go on and buy one you won't be disappointed in the least.

If you were closer I'd say come and have a go of mine after the 19th.

 

still not much word about the billeted versions.....

 

just make sure the wastegate works

 

Immy,
The Billet version IS blatantly quicker than a VF... don't worry!

I wouldn't for a second contemplate going back to the VF.