Search found 116 matches

by scott.venables
Sat Oct 15, 2011 9:29 am
Forum: Performance
Topic: 2.5 future mods - engine direction?
Replies: 36
Views: 9504

Re: 2.5 future mods - engine direction?

Yes I wouldn't mind seeing some more pictures, but perhaps in a separate thread?
by scott.venables
Fri Oct 14, 2011 5:31 pm
Forum: Performance
Topic: 2.5 future mods - engine direction?
Replies: 36
Views: 9504

Re: 2.5 future mods - engine direction?

Jules have you seen the Spruell 2.9 piston set? Uses 3.0 liners with a 2mm overbore and ends up with a 10.5:1CR with standard heads. I guess you could mill the heads for more.

Scott
by scott.venables
Mon Aug 22, 2011 4:44 am
Forum: Race Cars and Track preparation
Topic: 116 GTV BRERA Race car !!!
Replies: 29
Views: 18869

Re: 116 GTV BRERA Race car !!!

Our Commodores are 3.6, which I think is the biggest capacity for the alloytec. It would make good sense if the blocks are identical, except for bore size.
by scott.venables
Sat Aug 20, 2011 5:06 am
Forum: Race Cars and Track preparation
Topic: 116 GTV BRERA Race car !!!
Replies: 29
Views: 18869

Re: 116 GTV BRERA Race car !!!

Don't worry storm, this is a different engine. The 3.8 you're talking about is the old Buick 90deg 2v pushrod engine, this is the new 'Alloytec' 60deg, 4 valve with chain driven cams.

Scott
by scott.venables
Wed Jun 15, 2011 2:57 am
Forum: Engine
Topic: Alfa v6 tappets
Replies: 2
Views: 3933

Re: Alfa v6 tappets

A couple of years ago I had mine re-faced at the local camshaft grinder. Before I did it I talked to the local Alfa tuner and he said he had taken a lot off a set to lighten them (from memory I think over 1mm) and then had them hardness tested and they were just as hard as at the surface.
by scott.venables
Fri Apr 29, 2011 2:18 am
Forum: Engine
Topic: Ooops, I dropped a valve
Replies: 23
Views: 6856

Re: Ooops, I dropped a valve

You shouldn't need 98 octane fuel for a standard engine with 9:1 CR. I doubt 98 would have been readily available in the mid eighties anyhow.
by scott.venables
Wed Apr 27, 2011 1:59 am
Forum: Race Cars and Track preparation
Topic: The Orange Cab -MD's New Racer
Replies: 253
Views: 55141

Re: The Orange Cab -MD's New Racer

Hi MD. Did you re-drill the standard hubs? I'd like to do this for a friends race car. What did you do with the rear hubs? I was thinking ream the existing holes, press in inserts then re-drill on the 114.3 PCD. Front hubs are more straight forward.

Scott
by scott.venables
Sat Apr 23, 2011 6:52 pm
Forum: Engine
Topic: Ooops, I dropped a valve
Replies: 23
Views: 6856

Re: Ooops, I dropped a valve

If the valve clearances were set too tight the hot exhaust valve won't get enough 'seat time' to transfer heat into the head. Lean mixture and detonation wouldn't help either.

Scott
by scott.venables
Sat Apr 23, 2011 6:48 pm
Forum: Braking
Topic: Spindle flex under cornering....beware!
Replies: 31
Views: 17140

Re: Spindle flex under cornering....beware!

Hi MD. This fits standard 75 upright/spindle, this is a spacer that gets clamped between the inner races when the nut on the end of the spindle is tightened.

The first car they will be fitted to has lengthened uprights with bent steering arms for bump correction.

Scott
by scott.venables
Fri Apr 22, 2011 7:40 pm
Forum: Braking
Topic: Spindle flex under cornering....beware!
Replies: 31
Views: 17140

Re: Spindle flex under cornering....beware!

They're threaded with a 1mm pitch to set the wheel bearing play. I guess this bush is placed between the two inner bearing rings... But how do you set the wheel bearing play. Dismantle the hub several times? Basically. You could install it too long, then measure the play with a dial gauge and short...
by scott.venables
Fri Apr 22, 2011 5:33 am
Forum: Braking
Topic: Spindle flex under cornering....beware!
Replies: 31
Views: 17140

Re: Spindle flex under cornering....beware!

Thread revival! Did you figure something out Jim? At our last club sprint meeting a friend of mine with a 75TS turbo racer was having trouble with the inside of the wheel rim rubbing on the bottom ball joint stud. I've made up these for him to try out at the next meeting. They're threaded with a 1mm...
by scott.venables
Wed Feb 02, 2011 3:22 am
Forum: Exhaust System
Topic: Shankle Exhaust Secondary (Header?) Collector 3 pipes to 1
Replies: 2
Views: 3347

Re: Shankle Exhaust Secondary (Header?) Collector 3 pipes to 1

If the gasket is the same as the ones used in the locally made PACE headers, I think they are still available from PACE here in Victoria.
by scott.venables
Thu Jan 06, 2011 11:11 pm
Forum: Engine
Topic: worn cam, clatter
Replies: 42
Views: 11573

Re: worn cam, clatter

.... *Lifter stops rotating ( lifters are ground with a slight concave face and ride slightly offset from the cam lobe centreline. This is meant to make lifter rotate and promote even all over wear of the lifter face and cam lobe. The cam lobe is often also ground with a slight taper across the lob...
by scott.venables
Mon Oct 11, 2010 4:29 am
Forum: Engine
Topic: Crank pulley dynamic balance
Replies: 14
Views: 4991

Re: Crank pulley dynamic balance

That's what I thought
by scott.venables
Sun Oct 10, 2010 10:55 pm
Forum: Engine
Topic: Crank pulley dynamic balance
Replies: 14
Views: 4991

Re: Crank pulley dynamic balance

Even though I'm only static balancing the jig/pulley assembly?