Dave's CR3514 Progress

[750hp]

Looking great Dave. Looks like the passenger side should be much easier without the steering shaft in the way.

[DaveW]

Yep, the steering shaft position is a real pain to get a nice flowing header.
Plus there isnt a lot of room to play with at cyl 4 & 8 with distance from port to foot well clearance.

[Aussie Mike]

Beautiful work Dave.

Cheers

[mando s]

I don't know much about cars but I know what I like to see and I have never seen 4 pipes into a collector looking as good as that. Wow.
Is that where the cats are going to be?

Regards.

[guye]

Beautiful. Sniff.

Just watched the end of a touching movie, "We Bougth A Zoo" while I was reading this update, Dave. My wife thinks my tears are for the movie.

Tynong. Mmm. Not far to visit when I need mine done hey Dave.

[deano59]

that is bloody impressive kudo's for a job well done
cheers deano

[gjkrv8]

Very nice work Dave. That Modelling kit is pretty handy. Cuts down on the number of cuts :-)
Cheers Gregg

[DaveW]

Thats true Gregg, I didn't have to modify any pieces to fit.
I did have to clean up the first piece I tried to weld, having serious issues with my TIG melting electrodes, ended up using the gasless MIG to tack it together until I sort it out.

Guye, met you at TJ's the other weekend, welcome any time.

[DaveW]

Mando,
Yes, initially an under car system using the original VE cats.
After with side pipes.
The ring around the 4 pipes is where the collector will separate and the 4 pipes will continue down and out.
There will be a 5" V clamp on that flange.

What you been up to mate ?

[mando s]

Hi Dave,
great work as usual.
I've got my tuner coming to my place today to hopefully complete the tune.
If all goes well I can finally say I'm done, and I really do mean "done".
The only other job I need to do is put the wipers on as I have already removed the fuse so they don't go on accidentally.

Regards.

[Aussie Mike]

Originally Posted by DaveW

having serious issues with my TIG melting electrodes,

Check your polarity. It should be DC electrode negative from memory. If the polarity is round the wrong way the heat will go to the electrode rather than the work piece. You might not have noticed when using it AC as it alternates Positive/Negative. The electrode positive cycle cleans the surface by blasting the oxide off before the negative cycle puts the heat into the weld.

Cheers

[DaveW]

Hi Mike,
Its all pugged in correct, Ben asked if i was using the right gas, which i am using Argon, and have been using for ages, but this led me to think that maybe the reg is dropping off pressure mid work.
The symptoms occur after about 5 to 10 seconds of weld, (which goes well), then severe flare and next melt down.
Need to check this when i get home.
Dave

[DaveW]

Whoops, double posted somehow, sorry folks

[Modena]

Dave, I bought BOC regulators, I bought two so I could have two bottles going without stuffing around swapping all the time, I think they were about $90 each. I have an Argon bottle and an Argoshield. The reg says for Argon but it works with any Argon mix such as Argoshield. Anyway, I'm not doing much welding in the next couple of weeks as I am waiting on parts for sidepipes, so you're welcome to borrow one of the regs to confirm that your reg is the problem, if you can be bothered coming to get it you know where I am.

Both regs are only weeks old.

It's odd that you're melting tungsten though. If I forget to turn on the gas (which I have 3 or 4 times) with the TIG it instantly blows a hole in the work piece but I have never melted the tungsten.

[DaveW]

Hi Ben, thanks for the offer, i may do that if i cant figure it out next weekend.
Some searching on
Google found the probable answers will be either as Mike said with reversed polarity, or a loss of gas, so i think the issue may be gas pressure.
Ill find out on the weekend.

[DaveW]

TIG woes solved, the reg had a wasp and mud clogging up the gas inlet.
Not such an easy fix for my skills however.

[Gav]

Mud wasps have been the cause of more than one breakdown...

I had a 5M watt boiler vibrating like a bastard recently.
The main fan had a mud wasp nest on it.
Given the fan was 1300mm dia and spinning at 1400revs you'd have thought he mud nest would have flown off, but nope it was stuck on like **** to a blanket!!!

[DaveW]

Miserable weather today, forced me from yard duties to reside in the shed.
I've almost finished 1 side of the headers.
Today's task was to TIG up all the pipe joins, after practising for an hour or so, I attempted the first pipe, got so frustrated with my crappy efforts, reverted bag to MIG, then did a flap and file job on it to clean it all up.
Fitted all the pipes back on to the flanges and tacked in place.
Just need to weld up all the flanges and right side will be ready for coating.













Thanks to Mike (Aussie Mike) I will bolt the flange to some of his spare heads to keep the flange flat while I weld it all up....Tomorrows Job, unless the weather fines up.


cheers
Dave

[Aussie Mike]

Beautiful work Dave. Some very aesthetically pleasing curves in there. The raised ports should be good for flow too.

Cheers

[gjkrv8]

Looking great Dave. Where are you putting your O2 sensor Bung? Cheers Gregg