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View Full Version : So who wants to takes bets on how long this will last...


the poi
11-26-2004, 11:00 PM
http://www.pbase.com/765ti/image/36818525.jpg

http://www.pbase.com/765ti/image/36818526.jpg

http://www.pbase.com/765ti/image/36818524.jpg

I need a TIG I think...

Three Fat Tigers
11-26-2004, 11:08 PM
:omg: I want my mommieeeee :help:

BLOWN240
11-26-2004, 11:08 PM
3 days, 4 hours, 13 minutes, and 47 seconds.

2ptslow
11-26-2004, 11:25 PM
:lol: 4 EVEA!

blu92in99
11-26-2004, 11:30 PM
6 months, 1 week, 17 hours, 3 minutes, 48 seconds...


:help:

-Justin

mikep
11-27-2004, 12:09 AM
*in my best Young Frankenstein voice* "It's alIVE!!"

Hank Scorpio
11-27-2004, 12:31 AM
wtf were/are you trying to do?

Whats with teh funky wastegate arm man?!? lol

760T man
11-27-2004, 12:51 AM
precisely 1.21 seconds.

MikeHardy
11-27-2004, 01:16 AM
wtf were/are you trying to do?

Whats with teh funky wastegate arm man?!? lol
do adjust wastegate flap opening to actuator movement ratio i assume

thelostartof
11-27-2004, 01:26 AM
there are very few words to describe that ...


and i give it as long as it takes for that thing to hit 20psi ... because @ that second it does there will be this loud clank and metallic bang sound where in which your car suddenly hits 88mph and goes back to the year 1982.


but really there are some things one should not mess w/ ... this was one of them as it looks like it just makes the arm sit @ an odd angle vs preloading it

MikeHardy
11-27-2004, 01:35 AM
as chesh said, all it takes to get rid of boost spikes is a good EBC

pbonsalb
11-27-2004, 10:39 AM
If it is a Ford flange, it might hold. The Ford flange is steel. If it is a Volvo cast iron flange, it probably won't -- the Volvo flange is cast iron and has to be welded correctly to hold.

I did something like this with a cut down Volvo flange. I had a professional welder weld a tapered steel oval to the outside of the Volvo flange (he spent about 1.5 hours and charged about $100). I then used a gas MIG to weld to that steel oval.

Philip Bradley

greenteagod
11-27-2004, 11:16 AM
Well if it takes as long as it does for you to find the focus button I'd say forever =) Either way good luck.

the poi
11-27-2004, 12:00 PM
Well if it takes as long as it does for you to find the focus button I'd say forever =) Either way good luck.
I know, forgot to hit macro :oops: . But yes, its an adjustable wastegate...ideally, it should set the base boost to what I want, so i don't have to fight a wastegate thats designed to "balance" at 7 psi. If it doesnt work, I scrap the whole idea, and slap an Audi gate on it. That oughtta do it. I think.

740Weapon
11-27-2004, 07:33 PM
wastegate=good engineering. down pipe = awful but will probably outlast this planet.

why is it so ugly anyway?

linuxman51
11-27-2004, 07:52 PM
why is it so ugly anyway?

have you ever seen his mom?

940T_Drifter
11-27-2004, 08:09 PM
What in gods name !!!

isaac
11-27-2004, 09:52 PM
You have developed a craze, but you will never defeat me, never.

I give it just under a week.

n xntrx volvo
11-27-2004, 09:55 PM
it'll last as long as your welder does and your desire to reweld it. purdyness has nothing to do with strength, so who knows unless you send me an xray of those welds.

the poi
11-27-2004, 10:32 PM
aye, the bastards are pretty well penetrated, but without a TIG I had to pump metal into it to keep the arc right. As far as the downpipe, I have no idea why I can't make clean welds. Strangely, I was posting for the sake of the hideous looking contraption strapped to the wastegate... the dowpipe has been holding up just fine for almost a month now, heh. It is a ford housing btw, did weld easy...

n xntrx volvo
11-27-2004, 10:41 PM
looks like you're stopping/ changing directions too much. lower your amps, take it slower and smoother. make sure you control the pool, not the other way around.

the poi
11-28-2004, 02:50 PM
HA HA HA! IT WORKS! HEHEHE

http://www.pbase.com/765ti/image/36881737.jpg

No more boost spike for me! Woohoo!!!

volvorsport
11-28-2004, 03:16 PM
so , whats the base boost set at now ? lower or higher than 7 psi , could have just put a 14 psi actuator on there ?

V8BRICK
11-28-2004, 03:20 PM
Welding anything cast is a pain in the ass, even with tig. I've tried rewelding my b20 manifold twice, both times it cracked during the cooling process. If your welds crack where they meet the cast flange, try heating the cast iron with a torch for a few minutes to bring it up too about 500 degrees, weld it up, then wrap the piece in a towel or something that insulates well and shove it in a warm place like your kitchen oven on low for a few hours. They say controlled cooling is what keeps the cast from cracking.

the poi
11-28-2004, 03:28 PM
its at 16psi. And the "7 psi" and "15 psi" actuators are a misnomer. That label has absolutely nothign to do with actual boost pressure. Volvos actually use the "15 psi" actuators, but obviosuly, they dont run 15psi stock. That number has something to do with some specific excursion of the actuator itself, when I was testing them, it was about an inch. The volvo actuator doesnt even extend fully till 25 psi. In any event, actual boost pressure is a function of the wastegate flow and the position of the wastegate arm from the wastegate pivot. With my PS IC, ported 90+ , full 3in, and a 60/63, I was getting major boost creep. Would go well beyond 20psi. I made the new downpipe, and ported the turbo wasegate outlet. I was stil slgihtly creeping. My solution, was move the pivot arm closer the the flapper axis. This worked spectacularly well, but then I had a base boost of 5 psi. As far as MBC's go, they really only bandaid the boost pressure: I can't run 20 psi wiht a 7psi (or in my case, 5 psi) wastegate setup. It would spike to 22 psi and drop down to 12. So the point of this hideous contraption is bascially a means to adjsut the base boost. I set it it 20 psi, then set my MBC to pop open a little before then; instant boost and rock stable pressures. :-D

v8: i dodged that bullet by using the steel flange from a ford housing. Thats a killer idea though for welding cast...maybe the solution to fixing cracked 90+ manis...


edit:// er, not 16psi. 14.5. I suck at conversion factors.

mikep
11-28-2004, 04:01 PM
A box of wood shavings is good for controlling cooling, as is an oven.