We'll said.
Now back to chubbs' build thread




dr20t wrote:Matt is one of the best that I've seen. Very busy and often hard to catch, but his knowledge is sound. But even then he makes mistakes. And I know Matt can also be aggressive with tunes if the owner so wishes. Not having a dig at Matt here but if the owner wants a dyno figure, then as long as Matt explains the risks, you can't blame him.
I've been honest with matt about some of my concerns if he pushes too much ignition or cam timing and the impacts of this for some setups. Especially if he doesn't know the background / history of the engine etc. I am quite comfortable however that Matt does build in sufficient buffer into his tunes so any catastrophic failures can be caught early.
My strong advice to anyone chasing over 200kw atw from an EJ series motor is to ensure its tuned on a dyno, with knock ears. This is even more important on stock pistons running 98 Ron fuel. E85 I would be more concerned about cylinder pressure and dynamic compression ratio which can only be tested on a dyno as you can push well past MBT on e85 without knowing it until you get reversion or diminishing piston speed / torque. And that can only be properly done on a dyno.
In my opinion you can't blame a tuner for an under engineered engine from the get go. Whoever thinks the ej255 is a good platform for anything over 200kw atw is off their tree. The ej255 is an economy engine not a race engine.
Again it does come down to quality of parts and build quality but in this instance I think Phil Lowe has the requisite knowledge to shit on all ppl on this forum. Given the engine was stock other than headstuds then I think it comes down to another case of too much strain for the shit ej255. Fact is the ej255 is not conducive to sustainable high power. I know I've said in the past that they can be built to 230awkw reliably. But the more I learn the more I refine that backward. The ej255 is simply not built to tolerate high cylinder pressures for a long time in stock form.
The one thing msr is renowned for is building and tuning an engine. I think this offers a great point of difference as he obviously knows what he has built and can tune accordingly. This provides a good risk platform for a built motor (even stock rebuild etc).
Moral of the story - you pay to play. Bolt on mod choice is critical, as is engine history etc. Tune needs to be spot on and don't risk any bolt on mods without a tune.
Mick
<GB> wrote:so what symptom's did you have of a head gasket? was coolant leaking into the combustion chamber or into the oil or leaking externally or blown between cylinders?
chubbs wrote:<GB> wrote:so what symptom's did you have of a head gasket? was coolant leaking into the combustion chamber or into the oil or leaking externally or blown between cylinders?
I wasnt loosing alot of coolant but oil was leaking into the coolant
<GB> wrote:chubbs wrote:<GB> wrote:so what symptom's did you have of a head gasket? was coolant leaking into the combustion chamber or into the oil or leaking externally or blown between cylinders?
I wasnt loosing alot of coolant but oil was leaking into the coolant
and when did it start mixing coolant and oil?
chubbs wrote:
Once it started to overheat. I saw the temperature needle start to rise.
<GB> wrote:chubbs wrote:
Once it started to overheat. I saw the temperature needle start to rise.
did this happen after you changed over to e85?
brainy wrote:Chubbs all back up and running?
shav wrote:man I love the GOR. I was only there in Sept for the Lorne ride and it feels like I was there yesterday. Great shots btw
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