EK9 Racecar


Looking good man!
I have heard some negative things about the n1 crank pulleys though. Maybe worth you reading up on it and deciding for yourself but from what I've read the stock pulley is a harmonic balancer, without it the bearings and oil pump can get eaten up pretty quick (so I've read)
Some posts show the outer pump gear in several pieces...
 
Oh and where did you get those block fittings? Mine are push on ends and I want AN like yours.
 
jesse888 said:
Looking good man!
I have heard some negative things about the n1 crank pulleys though. Maybe worth you reading up on it and deciding for yourself but from what I've read the stock pulley is a harmonic balancer, without it the bearings and oil pump can get eaten up pretty quick (so I've read)
Some posts show the outer pump gear in several pieces...
Click to expand...
:eek2: Whaaaaaaaaat! Sounds bad, I'll have a look into it.
But my crank has been balanced with the N1 pulley so maybe the affect won't be as bad?
 
jesse888 said:
Oh and where did you get those block fittings? Mine are push on ends and I want AN like yours.
Click to expand...
I got the block breather set up from Go-autoworks. They're AN10. Really good set up.
 
I'm sure the harmonics come as a part of combustion so they are always there.
My engine wasn't balanced with the crank pulley on it either as they said they couldn't get the machine to clamp onto the crankshaft snout otherwise.
 
Yeh looks like it's to do with the harmonics,
Some people say it makes no difference but others say stay well away.
I know my crank was balanced with the pulley on so maybe this will help.
I'll be the Guinea pig lol, if my oil pump shits itself or my crank bearings eat themselves we'll know :lol:


Trying to put a brave face on:megusta:
 
It's only bearings and a pump end of the day isn't it!
Be good to see what happens with it.
 
What would you do if you were me?
 
B16Swt said:
Only bearings and pump but means a fully rebuild :eew:
Click to expand...

That's OK. I rebuilt mine 3 times lol

Personally I wouldn't run one, I have a fluidampr on mine as I suspected possible harmonics issue when mine was eating pumps and bearings. Stock ones are fine just annoying to look at having the extra bits for aircon and pas. It may all be hearsay and the N1 is fine but I'm sure the head of spoon said something about the bearings lasting 25k with the n1 pulley on.
 
+1 on the crank pulley. Fluidampr or oem is the only way to go. Especially with an uprated clutch and flywheel and due to the fact the engine doesnt run balance shafts also, if there isnt any type of damper on the crank it will cause serious harmonic resonance which is basically very high pitched frequency which will cause serious damage to the rotating assembly including especially crank, bearings, clutch and gearbox. So for the weight saved with the n1 pulley and the potentional damage caused to the engine or the extra kilo and a balanced engine, i know which i would prefer.

Good work with the build process so far, keep it up! When do you think this will be finished?

Ben
 
thanks for the advice guys, I'll have a think on what to do.
Ben hopefully all finished early September.
 
Don't I know about it! And too think it didn't even need it lol
Ati do one aswell but that's even more expensive
 
They are only about £250-£300 arent they? A new pump alone is that. You wont actually SEE any benefit from it but your engine will. Well worth the money!
 
Stock honda pumps are 150, I agree it can only do good but the stock pulley is also a damper so...
 
Tegiwa sell them at £387!
I might just run the stock pulley.
 
I was on stock before but the rubber inside looked all perished so I swapped it out. Was a desperate attempt to fix a problem that I had created.
If I was doing it again I'd keep the stock one. Could possibly have the extra ribs machined off to make it lighter.
 
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