does anyone know what all the torque specs are for the cylinderheads bolts or where i can find out.
thanks

 

40Nm to the crankcase. Let me know if that wasn't the one you wanted.

Randy

 

ya that helps i need the specs for every bolt involved though if you know what they are

 

Here is a site with the Dodge Neon Torque Specs. This is not 100% the same as the mini, but can be used as a refrence.

members.***.net/neons/torque.htm

Thanks
Dan
Pilo Racing

 

thanks that should help

 

12Nm

Valve cover to head
Thermostat to head

18Nm

Closure plug to head

28Nm

Head fixings to crankcase
Manifold to head
Guide rail to head

63Nm

Chain tensioner to closure plug

102Nm

Camgear to cam

Hope that helps!

Randy

 

randy thanks that is perfect. everything that i need.
btw have you tried any heads on yours?

 

I have tried heads, but not on mine. I've looked at a ported head, as well as a head with a larger valve size, and the cam as well.

Right now, I'm working on two different fronts to develop different stage heads. The issue with headwork is the cost/hp - it isn't justifyable for most folks. THe most I've seen from headwork to this point is about 10hp, at a cost of close to $2000. I'll come up with a port job for under $1000, then a full blown crazy head for almost double that - either of which can use the stock or Schrick cam (two different grinds available). There are some other folks working on good heads as well - but I'm not sure if they want the cat out of the bag.

Who are you working with on the porting?

Randy

 

I cannot wait until those larger valved cooper engines blow up/shatter/fail!

1.8 will be a fun size and will make for a good tragedy!

I cannot wait!

 

WestCoastCoopers,

I think you might have misunderstood. The larger valve size does not effect the displacement. These cars are still 1.6 liter motors. I agree with you. We have one 1.8L running, but there is almost no wall thickness - the customer is aware of this and just wanted to do it. I give it 20K or so before it blows .

Hope that clears things up!

Randy

 

Hahah thanks!

where is this customer?

I'd like to be there at mile 19,999.99!

That's funny.

-WCC

 

im working witha company out of Co called racing heads. i will have the head on next week....after i move ill let you know the results.

 

I was just looking over the BMW/Mini torque specs and they are:
3AZ head bolts to crankcase: Stage 1: 40 Nm; Stage 2: 90 degrees.

this is commonly done: torque to a reading (40 Nm), then turn it another 1/4 turn.

40 Nm alone is seriously under-torqued.

Another:
1 AZ cylinder head cover to cylinder head: stage 1: 6 Nm; stage 2: 12 Nm;

and:
10AZ Hydra mount to body (bolt): 56Nm + 90 degrees; (M10 x 110)
then:
11 AZ Hydra mount to body: 100Nm

and:
(under front axle carrier)
Compliance bush housing to bidy: 59Nm + 90 degrees +/-15 degrees (M10 screw)

weird mix, eh?