14 replies to this topic

[HARBER07]

Whats RPM are standard 1275 rod bolts good for?


Thanks.

[mini13]

the A+ ones are actually pretty sturdy, I have heard of them being taken to over 9k.

My balls would run out long before that though!

I'd say if you are going to go over 7500 much then go for ARPs

[HARBER07]

Mint. 7k is all it will go upto. It's only being built as a temp engine so didn't really want to spend out on some ARP's

Brilliant

[samsfern]

i have seen 9k at brands hatch on mine , as far as i know there standard. ive never heard of them breaking.

[HARBER07]

All good news then

Just need a set of push rods and I'm sorted

[Mr Joshua]

You called

[Sprocket]

You are mental if you use standard rod bolts at 9krpm. Failure of the bolt is not instantanious, but when they do, it is catastrophic. For the sake of saving £80 against the total loss of a £4k+ 9krpm engine >>>>>Ticking bomb I would say.

[Stevee]

how is it a "Rod Bolt?" it has no thread or head on it

its just a rod of metal with 2 shapen ends

[Sprocket]

It has a head, a shank, and a thread. That as far as I am aware is a bolt

[Stevee]

i done see no thread on that push rod

only thing that has a thread on it to do with the cam pushing the rockers is the adjuster


Edit: wait ive just re read this whole thread sorry haha i though you was on about push rods! whoops sorry im proper tired and can't sleep

sorry

Edited by Stevee, 09 September 2010 - 07:04 PM.

[Sprocket]

That is not a rod bolt now is it?

[Midas Mk1]

lol

Edited by Midas Mk1, 09 September 2010 - 07:17 PM.

[HARBER07]

!

[Stevee]

i feel like a kn** now! haha

sorry though i really should go get some sleep!

[GreaseMonkey]