Quote:
Originally Posted by ft_sjo
Hi Paul. Thanks for replying. I was starting to wonder if anyone would beyond all the fanboys.
I am intrigued by your comment about not seeing the point. What don't you see the point of? Having an engine with a nice wide band of torque? This is surprising as your AVO turbo conversion (at its current power level) has a nice band of torque itself. Surely this is a characteristic you'd like to try and maintain as you start to produce higher power conversions?
I was under the impression that the FA20 had a good head design, going by what some other tuners have said on this forum.
Do you see not using an iron block being a major reason for other tuners not being able to get a wide torque band?
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Alright, The biggest reason you are not getting a responses you want is for starters, that dynograph. This displays you have inexperience with the finer levels of engine enhancement using tools like a dyno. This is not a fault, Everyone starts somewhere, I know for certain I was not born with a wrench in my hand, otherwise my mother would be dead or turbocharged.
The only effect a cast iron block will have on the torque of an engine, is that of a supporting portion of a whole bucket of changes.
Say if someone were to create a stroker kit for this engine, It would likely use a 20 to 40 over piston. A cast block is safer for these clearances, That's it.
If you have past experience with larger engines, and judging by your obsession with torque curves you may, Try to keep in mind, these do not react as drastically as them. I have not opened one up myself, But from what I can tell, we are using a short stroked rod/piston combo, And I have no doubt, in a year or two's time, we will be seeing valve spring and cam kits all over the place, and these engine screaming along at 10k RPM all day.
Cut yourself some slack, Its been said time and time again, google things. The particular information on this engine may not be out there yet, but the basics are as old as porn itself. The answers are out there, just sometimes worded differently, or on another platform/engine, just dig a little.
If you have faith that your dynograph is real, Print it, keep it on another screen, whatever. Then google "Dyno" and click on images. Nothing ive seen in all of my years tuning makes a chart that looks like yours.
Keep your stick on the ice.