33 replies to this topic

[eyepeeler]

Nice, watched race 4, looked pretty good racing.

[Bigfella237]

Done good Chris, I love the three different camera angles.

 

That's a sweet noise too, although I found myself leaning into the corners and stomping on my imaginary brake pedal coming into turn 2 (Race 3 @ 4:40)!

 

C'mon Craig, can't wait to hear that LS2 at full noise?

[RallyRed]

far out Chris....some close racing there!!...bet you had Fu$%^n   BMW nightmares for a week.!

 

Your car seems well sorted as it goes where you point it.

 

Nice work with the multi cameras too

[eyepeeler]

C'mon Craig, can't wait to hear that LS2 at full noise?

Booked to fire it up tomorrow week. TuneCorp are putting a base tune in it and getting it going.

[LC-GTR-1969]

Sounds great Chris... who dynoed the old motor?

Edited by LC-GTR-1969, 05 August 2016 - 08:16 PM.

[LC-GTR-1969]

Hey Justin, new motor will be in the car for next round. Power runs and figures were done on the old motor in the car with 3:08 ratio, new motor will be roller crammed, more comp, carbies tuned and a new soft mount kit. Still using 1 of the Irving Heads, (your old one has been serviced but not used this time) other than that it's all new bolts throughout new rocker gear. The whole nine yards, I'm really keen to drive it with the new motor as it should be more responsive and have more top end. Old motor was flat tappet and has done 3/4 seasons. Will keep you updated.

Cheers Chris, definitely keep us posted... My wife is back at work now so I am starting to save again to get another head and will put a new engine together. My engine is tired also so looking at screwing a new bottom end together and when funds are available, ill try to buy a good alloy head- maybe HSD will have finished their Irving copies by then, but no idea what they will charge for them.

[LC-GTR-1969]

Tilleys over at Brookvale, they will also do the tune for me once the motor is in and been run in

Cool... I asked as I would like a good tuner for triples... not many around these days

[piquet]

Falcons and Mustangs have been given the freedom to use later new cylinder heads but they are still cast iron.

[piquet]

I can offer a bit of background on this matter and a number of the other freedoms that have been allowed for other cars.

 

The reason that the Mustangs ad some of the other Fords were given the freedom to use new aftermarket heads was for several reasons.

One was the fact that the waterjacket through th head was very close to the mounting boss for the rocker post.. I have seen the heads in sliced open through this area and the side wall was very thin when new. What was happening that heads were literally tearing themselves apart because of the weakness of the metal when the inside of the cooling ports rusted out. Now remember these heads are now 40+ years old. And in the case of an Nb Mustang or Fairlane of the period over 50 years old.

.

 

It was not just happening on the original heads. It was happening on the GT40 heads and virtulally any Ford manufactured head of the peeriod.

 

So what do we do.

Tell all the mustang guys to go suck eggs and spend heap of money on a cylinder head only to have it fail after a couple of meetings.

That's a sure way of not having cars on the grid.

 

After a lot of research and tooing and froing an option was found, A  properly prepared submission was put to the Historic Car Commission for the freedom to use one particular aftermarket cylinder head, identified by a particular part number.That was the only cylinder head approved.Anything else was not permitted. The head had to remain in standard form as from the box and no additional portig was allowed to be done with the exception of it being allowed to have the inlet ports matched to the inlet manifold.

 

There was also the scarcity component of these heads particularly for the 289 Windsor engines. Not all that many of these cars came into the country and virtually all the heads had the same problems. severe internal corosion.

 

Freedoms for the use of later components have ben given to just about every car in the category..

Alternators have been allowed to all cars in place of generators. Electronic distributors have been given to all cars except that MSD's are not permitted. One problem with the electronic distributors was found that the modules were failing particularly on Lotus Cortinas so they were given to permission to mount the module remotely on the body as opposed to on the dissy on the engine. This was done because the vibrations of those particular engine was destroying the modules. A simple and practical solution but it had to  be done the correct way to get it done.

 

EH holdens are allowed to use the 173 cylinder bock because there are no non rusted out 179's around and they can also use the 3 speed all synchro gear box because there are not that many parts for the original that was continually breaking. Have a look at an original EH gearbox they are very flimsy.

Minis are now allowed to us a dog box system as the synchros were breaking all the time.

 

LJ Toranas were given permission to use the Black/Blue motor 3.3 cylinder blocks for the same reasons as the EH with the 179. To get that through was quite involved and  checking that thecast iron was of a similar consistency and it came down to slicing up a red 202 and a black 3.3 to check that the cross section of both blocks were essentially the same.

Sadly the same cant be said to the 9 port heads as compared to the later 9 port heads and 12 port head or even the now repro XU1 cylinder heads. And any alloy head  I can't see getting through as it is a change of port design, material and was never available in large numbers in the period. Definitly not from GMH at the time.

They have been looked at and knocked back.

 

I'm sure there are a lot of other freedoms that have been given. It is a pretty thorough procedure that needs the agreement of every state association and the agreement of every eligibility officer before it is put to the HCC. If one state or EO says no then it probably wont even get to the HCC for consideration.

 

 

Just for info  and so you know where I'm coming from on these matters I have been a member of the AppJ assoc of Vic/HTCAV since 1984. I was on the committe of the APPJ assoc of Victoria and the HTCAV  for about 10 years being everything up to the secretary and treasurer.

I was the club secretary when the original regulations to Group Nc were drafted and somehwere have the minutes of all the meeting held to try and get a set of workable regulations.

The current regulation are quite differentfrom the original as put together but reflect the input of quite a number of people over a long period of time.

 

The original rgulations did not include any cars that were raced as series production cars. It was only for cars that raced in the period1964-72 that raced in either the Aust Tourung Car Championship or in the Improved Touring Car category. During that time 1964-72 there wer about  6 different sets of regulations thet had to be amalgamated to get one coherent set that was agreeable to everyone and including the CAMS.

Did we get it right? Probably not but it was a start and they have evolved to where we are today . They'll probably keep evolving and get tinkered with but in general they are pretty good.

Not every one is happy but you can't pleas all the people all the time. If we please some of them were are doing OK.

 

Here endeth the lesson.