Narfle

iTrader: (16)

possible to take off my manifold and weld on a new wastegate? weld other one shut?

my rear sway bar snapped loose of my suspension
what did it break to do that? toe links? trailing arms? tie bar?


thx in advance
peese

rynberg

1) If it was feasible to do that with the wastegate, lots of people would have done it by now. Why do you want to do this?

2) Did it really "snap" loose, or did one of the mounting bolts just fall out/break. Please be more descriptive. The front mounts bend easily under track type loads with grippy tires but I've never heard of anybody having a problem with the rear mounts.....

Narfle

iTrader: (16)

the sway bar didnt snap but the connectors to the rear suspension did snap

why is it son infeasible?
weld on new pipe move hoses to new wastegate enjoy
i dont see the issue

Mahjik

iTrader: (1)

https://www.rx7club.com/forum/showth...hreadid=187155

Narfle

iTrader: (16)

i miust be a retard but i dont understand
that didnt help
you could just remove the actuiator to the old wastegate weld on a new wastegate to the old manifold by fabing a tube of the proper size with proper flanges place the actuiator line on that and go
it seems to me like it would work
imho correct me if im wrong thx again
barban

twinturborx7pete

iTrader: (3)

it... COULD work.. (anything is possible) but it would be waste of time.. why do you want an external wastegate for the stocktwins? You can port the stock internal wastegate if you are having creep issues.

Narfle

iTrader: (16)

why do we replace anythign on the RX7?
peace of mind
it shouldnt be too expensive or hard with any welding skills

rynberg

Yeah, but I can't remember hearing anyone ever having the stock wastegate fail. It seems like a whole lot of trouble for no gain.

You have to consider that people have been modding these cars for years now and, for the most part, if something is not regularly done, there's probably a good reason not to do it.

As far as expensive goes, have you looked at the price of good quality aftermarket wastegates?

Narfle

iTrader: (16)

true i was referring to the modification to the manifold a lone
its not the failure that worries me its the down right obselecence when you add a midpipe
i see people on here saying that even porting doesnt work and im sure that porting isnt inexpensive either
i think ill buy a used manifolt and give it a shot
ill be back with results as soon as i have them

twinturborx7pete

iTrader: (3)

have fun with that manifold then, its cast iron. and you would have to go into the turbos to disable the internal wastegate, but while you were in there you could have ported it...

Besides, what are you going to weld up onto cast iron? NOTHING.

Narfle

iTrader: (16)

i was unaware you couldnt weld onto cast iron

ludeowner

I know a lot of DSMers and Honda/Acura guys who weld their internal WG shut on their mitsu or Greddy turbo and weld on an external WG.

BUT:

#1 they have enough space in the engine bay to have the external WG

#2 the turbo they are using wont choke up at the higher boost that they will be running. The Honda/Acura guys are going with an external WG, and boosting in excess of 14 PSI on their TD06-18Gs which can still work pretty efficiently at high PSI. Same thing for the DSMers boosting 18-20+ PSI on their 20G turbos.

For those guys it is pretty much necessary to go with an external WG. For you, if you plan on staying with the stock twins, then IMO it would be pointless to get an external WG welded on.