gears/posi

Jeff · Post by **Jeff** » Mon Oct 04, 04 10:56 am

If you like the location of mine... We will just measure it all up for you.

db · Post by db » Mon Oct 04, 04 1:21 pm

Dave- my axle is located pretty rigidly- bout 3" travel on coilovers with ladder bar & panhard all spherical jointed so no worries there (though a 2nd opinion might be wise!)
Don't imagine it'll be a comfy ride on our battered roads tho...
Jeff- yes i like the look of your setup so..yes please!

Jeff · Post by **Jeff** » Mon Oct 04, 04 1:58 pm

Looking at that set up.. Use the case you have. Take it to Mr H or someone to have it narrowed and install correct length shafts at the same time. At least all the bracketry is there. ! will measure mine up asap.
I am considering new wheels soon, so I will have some to fill your rear.

Ohh I need to do some cleaning!

db · Post by db » Wed Oct 06, 04 6:03 pm

YARR gimme gimme gimme

D'ya have contact details for Mr H?

Kev · Post by **Kev** » Wed Oct 06, 04 6:35 pm

http://www.hauserracing.com/

db · Post by db » Wed Oct 06, 04 6:41 pm

Dave if youre still watching... what kinda RPM would peak torque come at on say a 300-350bhp 360c.i. lump or is that a 'how long is a piece of string' type question??
To enter 18.5x15 MT's (o.d. of 29") i'm entering 470/38/15 to your formula!!
This gives, with a 4.30 rear, 75mph at around 4000rpm or with a 4.56 rear , 75mph at around 4,200. 4.10 gears would make it around 3,800.
Sound anywhere near right?
I realise i should probably get the engine before settling on a diff but i have a good idea what i want and i can afford to get the rear end sorted now.
I have to sell my Lancia to get the motor so that may be a while yet!

db · Post by db » Wed Oct 06, 04 6:43 pm

Ah THAT Mr H

Thanks guys !!!

Dave-R · Post by **Dave-R** » Wed Oct 06, 04 9:10 pm

Peak torque rpm is determined mainly by the size of the engine and the duration of the cam.

db · Post by db » Thu Oct 07, 04 10:12 am

As i thought...

Well fingers crossed it looks like i have a buyer for my Lancia so come saturday i may go engine shopping

Dave-R · Post by **Dave-R** » Thu Oct 07, 04 10:49 am

Everything has to match for the car to work well Paul. One thing kind of decides the other.

The best way to go about it (if you are starting from scratch) is to first decide what short block and cam you are using. Keep in mind that the cam dictates what rpm the engine operates in.
Then pick the heads to suit. Depending on the cam and short block they may need to have large valves or porting. Or not. Because a mild engine will work worse with large valves and porting.

You then select the other engine parts to suit that package. Induction and exhaust size/type etc.

Now you have a "long block".
You select the transmission to suit that. The engine combo dictates what size torque converter you need if it is an automatic. The power output may dictate trans modifications.

THEN you build an axle to suit and select the gears you need for the operating engine rpm and the tyre diameter.

See how far down the list that bit came?

db · Post by db » Thu Oct 07, 04 11:47 am

Gotcha, i seem to have jumped ahead of myself a wee bit!
It's a good thing there are some grown-ups about

Dave-R · Post by **Dave-R** » Thu Oct 07, 04 1:10 pm

Nothing wrong with doing things in the reverse order Paul as long as you have a clear plan for the rest of the car.

How many spares do you see for sale labled as 'still in the box' or 'only a few hundred miles on them'? I often wonder why that is?