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Engine Specific Info and Questions => IDI Engine => Topic started by: paddy_ireland on November 13, 2008, 01:01:58 pm
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ive got a volvo engine in the basement and its a t3 garrett s.a(south africa???) turbo vw/audi stamps on it.
will this work for my aaz mk2 and how do i tell if its waste gate one so i can use it on my mk2 aaz?
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Post up a picture :)
There were T3's used on some VW engine but I dont know what housings your turbo has.
I'm guess it will work but without doing a interweb search I cant tell ya much.
There is prob someone on here that will chime in though.
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If the turbo is a stock T3 from a Volvo 740, it will have a waste gate and it can be a useful turbo for the 4 cylinder diesels too.
The stock 2.4 TD of the Volvo made 120 hp on its most powerful version and the turbochanger was the same as on the standard version.
Your boost treshold wikll be a bit higher with this turbocharger, but maximum power will be much higher too. You can push the engine to almost 200 hp with this turbo, and with 140-150 hp it should be right there with not a lot of heat coming off the turbo.
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It's going to spool slower though.
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what am i talking head gasket wise for more power
what can a stock one take or am i needing arp head studs over a certain power?
actually how much are arp studs?
cheers
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I would like to know aswell how much the t3 and headgasket can take. Right now im running 30psi with a blocked wastegate without problems. I will be turning down the fuel to decrease the pressure.
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holy christ 30psi on standard gasket and studs????? :shock:
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That can be done apparently, I know local guys here too who're doing it...
There are a lot more things that contribute there, apart from the actual boost pressure.
paddy, can you describe your engine and its mods? That can make all the difference..
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The t3 (1.6) takes 60 psi exhaust manifold pressure to make 30 psi boost.At 22 psi boost the exhaust pressure is 22 psiThe exhaust pressure is hard on the headgasket and the whole engine for that matter.You need a better turbo for boost above 22 psi.
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what am i talking head gasket wise for more power
what can a stock one take or am i needing arp head studs over a certain power?
actually how much are arp studs?
cheers
Well there are guys that run 30psi on the stock gasket then there's guys that have barley hit 20 and blown it out.
Personally I run Studs and a MLS gasket, I've touched 40 a couple times but stay around 30 max at this point.
ARP's or Raceware studs are a very good upgrade here.
Cost is about $100.00 US on either I believe.
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ARP studs + stock fiber head gasket + 20psi=blown head gasket in 2 spots...at least 2 maybe 3 spots
I'm bitter about fiber gaskets...I blew mine on my very first test drive!!!
go studs and MLS gasket and forget about it! 8)
getting your car ALL put together just to take it back apart after the first test drive sucks!! :(
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right got a brand new volvo turbo for free.
where can i get an msl gasket(multi layer steel????) and arp's?
the engine is bog standard getting the works done to it
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If you're getting your engine done make sure to get the exhaust ports enlarged. I think this is even more important than studs, especially if your turbo is somewhat restrictive or if you're running big fueling.
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my head is PNPed and gasket matched and it did not help me... :(
MLS+studs and be done with it!!!!
I even think MLS and stock bolts would be better then fiber and studs....
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If you're getting your engine done make sure to get the exhaust ports enlarged. I think this is even more important than studs, especially if your turbo is somewhat restrictive or if you're running big fueling.
...and a good inlet manifold is also really important, so that each cylinder has equal amount of air since they will be getting an equal amount of fuel...
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so where can i get a msl and arp's?
when you say exhaust port enlargened will i need a new ex manifold to go with it?
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so where can i get a msl and arp's?
when you say exhaust port enlargened will i need a new ex manifold to go with it?
I don't know where you're at but the gasket can be ordered from
http://www.importcarpartscanada.ca/index.wws
although I can't say 100% it won't be fibre although the one I got was MLS.
(http://img.eautopartscatalog.com/live/A810095401REI.JPG)
The exhaust ports just need to be matched to whatever manifold you're using and then enlarged within the head. The intake ports don't really need to be enlarged but should be matched to the manifold as well.[/img]
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and its deffo not able to be done on a standard set up? standard manifold like....or will this cause something to blow up at around 150 bhp?
pics to follow later on the turbo
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and its deffo not able to be done on a standard set up? standard manifold like....or will this cause something to blow up at around 150 bhp?
pics to follow later on the turbo
You referring to inlet or exhaust manifold now?
Inlet manifold as standard has one major flaw - it has enough flow for most people's needs, but it does nothing to help divide the airflow evenly accross all cylinders. If you look at any racing cars or well built street turbo cars, this will always be one key concern when designing manifolds. Not only does even airflow improve power, but crucially, it makes a big difference to reliability.
Exhaust manifold as it is on a 1.6 TD or 1.9 TD, is not the worst there is, but after 150 hp or so it will become a bottle neck. Of course, many people end up ditching it for a different reason, namely for the very rare turbo flange that won't allow many turbo upgrade options without adapter flanges, which can be tricky. BTW, good cast turbo manifolds with either T3 or T25 flange can be had for $150 on eBay.
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Like this?
(http://s1.promotionsupplies.com/ebay/cxlighting/manifold/AU-MF-002-t25.jpg)
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Yes. Those things are really not that bad even though you can get them pretty cheaply.
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i think i'll get one for my 1.6TD project car - then stick a t3/t4 on it :evil: