Winton 6 hour 23-24 oct 2010

[ian]

what plugs are you running
you might have to go up in the heat range
also your fuel may be stale as well

[joey]

Just put in some NGK bpr6ey .7-.8mm gap. Was running some nippondenso ones, cant remember what type off the top of my head.
Either way its still not starting, put in a fresh batch of fuel last race day so shouldnt be stale. Will give the battery a charge tonight and give it another shot :\

[RA40-Rossco]

well, new semi's ordered for the celica, decided to go with the KU36, they should be here wendsday

need to address my oil leak from the timing cover seal, bleed the brake, diff pinion seal, and re-sort this front suspension, its come back up about an inch since ive started taking weight out!

[shornesheep]

feed the car donuts Rossco

[RA40-Rossco]

feed the car donuts Rossco

nah, it may get introduced to makita tho

[twentyEight]

Please don't cut your springs, it's my pet hate! Especially on a track car!

It reduces the spring rate thereby making it softer and a useless exercise.

"Oh my car is lower so it must handle better..."

[RA40-Rossco]

well they dont actualy run a progressive rate so it doesent alter it, but yes i hear where your coming from

ive got a set of lower kings here but took them out last time because as usual with everything king springs they dont fit right, i will be re-visiting the scene of the crime however and they will probably end up back in the car

[timbosaurus]

It reduces the spring rate thereby making it stiffer and a useless exercise.

Not here to argue... just wanted to clarify...

[twentyEight]

as usual with everything king springs they dont fit right

Never had, or heard of, king springs that don't fit correctly. I'd say you have incorrect springs. Are they front or rear that don't fit right?

Not here to argue... just wanted to clarify...

Really? I thought the stiffest parts of an automotive spring was the outer 1/4s, so trimming them took away a large part of their firmness? I have misunderstood it seems...

[RA40-Rossco]

Never had, or heard of, king springs that don't fit correctly. I'd say you have incorrect springs. Are they front or rear that don't fit right?


Really? I thought the stiffest parts of an automotive spring was the outer 1/4s, so trimming them took away a large part of their firmness? I have misunderstood it seems...

fronts, had heaps of drama's with king springs in many of mine and customers vehicles in the past, i will pretty much avoid fitment of kind springs when there is another practical solution

and as to if a spring gets stiffer/softer depends on what end is removed on a progressive rate spring,

on a fixed rate spring, cutting them wont actual alter the spring rate- i know the standard ones in my ra40 fixed are as well as the king spring here are also (3kg/mm on the kings i tested)

[af300e]

Quote:
It increases the spring rate thereby making it stiffer
Not here to argue... just wanted to clarify...

True. I had some .43kg/mm springs (motorcycle) that I cut in order to up their rate to .45kg/mm. I calculated the modulus of the material based on the original rate, wire diameter and active coils and their rate was measured before and after.
Operation big success!

PS. There is nothing wrong with cut springs provided the resulting rate is desirable and they are captive.

[af300e]

and as to if a spring gets stiffer/softer depends on what end is removed on a progressive rate spring,

on a fixed rate spring, cutting them wont actual alter the spring rate- i know the standard ones in my ra40 fixed are as well as the king spring here are also (3kg/mm on the kings i tested)

That's also not correct. Cutting any spring will make it stiffer regardless of whether it is progressive or constant rate and regardless of which end the cut is made at. It is impossible to make a spring rate lower by cutting the spring.

Less active coils = higher rate.

[RA40-Rossco]

That's also not correct. Cutting any spring will make it stiffer regardless of whether it is progressive or constant rate and regardless of which end the cut is made at. It is impossible to make a spring rate higher by cutting the spring.

Less active coils = higher rate.

ill shut up then , i would have thought if you had cut the heavier wound coils then it would have soffened the over all rate and vica versa, happy to stand corrected!

[af300e]

Yeah, it's a bit counter intuitive at face value but it makes sense depending on how you think about it.

I don't mean to be a smart kent, just trying to dispel some myths.

Also, i mean to say that it's impossible to make the rate LOWER by cutting but i mistyped. I edited it to make it correct.

Also I was thinking about the progressive springs and I suppose that if you removed the entire (or nearly all) of the high rate section, you'd end up with a single rate softer spring overall but I haven't totally convinced myself that it would be the case and it wouldn't be practical of course EDIT: The formula for springs in series supports that the spring will only get more firm as either of the ends is cut (and therefore its rate lifted in it's own right). If you only trimmed a small amount of the high rate section you'd simply progress up the rate more quickly. You could change the rate of rate progression by trimming one end or the other but never actually soften the spring.

[shornesheep]

will some one please close the can of worms