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Help chooseing a turbo 

 

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 Post subject: Help chooseing a turbo
Posted: Wed Jun 15, 2005 9:37 pm 
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ok here i go iam in the begining of building an EL turbo motor, i am goin to replace all internals so it will be fairly strong, any way my prob was what turbo shall i bolt on, i was looking on the internet at turbos and i ended up thinking i wnt sumfin with good power,quick spool up rate and not to harsh on the back pocket so this is what i have found GT35/40 Turbo, TO4E, TO4B or a T70 i found sum very good deals for the T70 what do you guys recon with that turbo and the others what will be the best job has to be fairly reliable turbo as the car will be a daily driver and will it be hard to get a manifold for a T3 flange hope for sum help here from you guys soon

cheers guys
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Posted: Wed Jun 15, 2005 9:52 pm 
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GT35/40 if u don't mind spending a bit more :D

 

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Posted: Wed Jun 15, 2005 9:57 pm 
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what do you think of the t70 are they any good
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Posted: Thu Jun 16, 2005 12:04 am 
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What T70 ?

Turbo choice isnt easy so you need to decide on what you want from the motor at the end of it all. Do you just want a solid 250wkws or are you wanting alot more? Everybody says they want lots of power and quick spool but in reallity almost any large to4 sized turbo will give you this if all areas are done corectly.
When I chose my turbo I asked the turbo shop to build me a plain bearing oil cooled turbo that will support 300wkw at 14psi. My reasons for this is that Im not interested in GT ball bearing turbos as they cost alot more to rebuild, cost around $500 more than plain bearing turbos, and on big motors they really only spool a few hundred rpm earlier... the money I saved I put toward a quality wastegate, very impoportant on large motors.
Call some turbo shops and see what they have to offer
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Posted: Thu Jun 16, 2005 12:07 am 
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Also GT35/40 hybrid is more suited to a smaller motor such as an RB30, 1JZ... a straight GT40 is a better size for 4lt... but it all depends on wheel sizings and housings too
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Posted: Thu Jun 16, 2005 12:24 am 
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GT35/40 is well suited to the 4litre, as is the GT40.
afaik Pyro's using a GT35/40 :P

 

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Posted: Thu Jun 16, 2005 12:26 am 
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Yep, I'd love to see what he would get with a bigger turbo though
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Posted: Thu Jun 16, 2005 12:50 am 
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i'm sure he'd have more peak power..
but on a street car... who wants that.. its all about mid range :D

 

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Posted: Thu Jun 16, 2005 12:53 am 
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dleach80 wrote:
what do you think of the t70 are they any good


I can get you a T70 for about $900 to perth. Good turbos, big power and I think they're ball bearing turbos from memory.

 

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Posted: Thu Jun 16, 2005 3:57 am 
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T70 what ??? Alot of them are being sold on Ebay and they are s**t ..Made in China...They are NOT even 70mm ...Buyer beware !!!

 

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Posted: Thu Jun 16, 2005 8:30 am 
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EFFalcon wrote:
i'm sure he'd have more peak power..
but on a street car... who wants that.. its all about mid range :D


If you had a turbo i6 you would know what I mean :wink:
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Posted: Thu Jun 16, 2005 1:57 pm 
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lol
i'll give you that
gimme a few months ;)

 

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Posted: Thu Jun 16, 2005 3:02 pm 
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Cool, another turbo falcon on the roads and another potential HSV driver put to shame :)
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Posted: Thu Jun 16, 2005 9:35 pm 
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What's the main difference between the GT35/40 (pyorays turbo) and the GT3040 (stock XR6T turbo)? IMO the GT3040 is more than enough and has a good response for a street car.
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Posted: Thu Jun 16, 2005 10:06 pm 
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Yes the XR6T's turbo is definatly more than enough for a street car... What Im saying about using a biiger turbo is to reduce the instant torque which is nearly always too much and shift the power up higher and also reduce boost... thats some of the benifits of a larger turbo.

The XR6 turbo is a specially made turbo for ford, but it is very similar to a GT40. There is alsorts of names for it going around... but its closest to a GT40
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