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Hey guys

got the GTR goin into the exhuast within the next couple of days and trying to get a figure on how much i should be paying...

the set up is a single high mount borg warner on a twinscroll manifold

Basically the work i need done is a

4 inch v-band dump pipe to the cat

plumb the two wastegates into the exhuast

setting up the plumbing from compressor side of the turbo to the intercooler

im guessin stainless will be the way to go?

any input is welcome

cheers

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Decent grade stainless with mandrel bends - I reckon some where around a gorilla. Actually you may get a bit of change from $1000.

$400 for the dump, $300 for the wastegates, $150 for intercooler piping.

That's my guesstimate.

Decent grade stainless with mandrel bends - I reckon some where around a gorilla. Actually you may get a bit of change from $1000.

$400 for the dump, $300 for the wastegates, $150 for intercooler piping.

That's my guesstimate.

Is that the going rate for a gorilla these days? $1000 is quite affordable, I could really use a gorilla around the house :P

I'd pay 400-600 for the dump including WG plumbing, add another 200 if the WGs need to be plumbed up to the manifold.

Probably another 100 ontop for the hotside pipe. Would pay up to but not over a grand for that job.

Is that the going rate for a gorilla these days? $1000 is quite affordable, I could really use a gorilla around the house :P

lol god I didnt think a 5 year age gap would do so much.......

cool, i was hoping it would be around the 1000 figure, hopefully less

obviously need the oxy sensor adaptors for the dump as well...

what do u guys reckon about keeping the dump pipe mild steel and heat wraping it?

plumbing 2 gates in is going to be a head f**k for the guy doing it. I'd say $1000 would be a minimum for this job. Don't forget you will need flexible bellows for the gate pipes as you won't line 2 up simultaneously once it's made. It takes just as long (sometimes longer) to do the wastegate returns - just because they are smaller, doesn't make them any easier. I reckon whoever does it would be looking at a day to do it which is going to work out to be $500-800 just in labour.

If the cat isn't already 4 inch it will also be hard to adapt it with a flange as 4inch only comes in 3 bolt triangle flanges or vband. Vband won't go easily onto a 3.5 inch cat and neither will a 3 bolt triangle flange. It will need to be stepped down before the cat and that reduces the amoutn of room you have to run the gate returns

Not an exciting job

yea definatly no denying its goin to be a major pain in the ass and labour will be the most expensive part...suppose i can expect a high end figure of 1500?

As long as they do a good job i dont mind payin a few hundred bucks extra.

do we think the dump should be stainless still?

The material wont change the cost much, I would go stainless, especially if you plan to go e85.

I think $1500 would be the starting price for a good job, there is an easy 2 days doing it all properly, grinding the inside smooth takes time but nets the extra gains. Dont skimp as crunching the fabricator and making him cut corners will cost you power.

Its not just an exhaust shop you're going to is it? A good performance workshop/fabricator is required imo.

No plans for E85 as of yet but definatly an option in the future

Your right might as well go the stainless, looks better too

The car is gettin done at Unigroup so ive organised through Yavuz to get the exhaust done, not sure who he uses but im sure they would have to be of a decent quality

The material wont change the cost much, I would go stainless, especially if you plan to go e85.

Stainless costs double that of mild steel in the same tube size unless you buy it wholesale in which case it's about 75% dearer

So around $200 in tubing instead of $150 right? Labour is where the cost is.

Feel the tension :3some:

As for WG returns, lately I have been considering the stainless flexible exhaust pipe like what you see on trucks... Theres this very flexible version that sort of slots together rather than the ribbed version.

http://i00.i.aliimg.com/photo/v0/448053166/HOWO_truck_Exhaust_Flexible_pipe.jpg

That's what is inside the stainless woven flex couplings you normally see, I don't know why its not used on its own on cars, can you get it in smaller sizes?

I dont think it can be welded either as its too thin, it needs to be clamped. I agree, it would be great for wastegate piping.

well ive done a few. to do a nice dump pipe easy 4 hours.

plumbing the wastegates in will take longer. massive pain in the ass.

try and build the system using "marman" style v bands. heaps easier to work with and can take alot more tollerance for miss alignment.

the dump and screamer pipes are easy. its just getting the things plumbed into the dump pipe wich is a pain. especialy if you have little v-band wastegates. absolute cok to get on and off with the hinge type clamps.

i know first hand as i just did a 6boost with twin mvs-44 tials. borg warner 9179. on my girlfriends car rb25 r33.. just no room to move. depending where the gates are mounted will dictate how much swaring is involved.

So around $200 in tubing instead of $150 right? Labour is where the cost is.

You didnt do very well in maths at school right? Double? Lol

For example a 90 3" mandrel in ss is 3 times the price of ms.

Please post pics of the completed job so we can all drool.

well i was thinkin about leaving the gates to vent to atmosphere as it would be cheaper but i dont think thats too good of an idea for legality reasons

all i know is im glad im not doin it!!!

Will definatly post some pics when she's all done

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