t3/t34

Discuss general engine, turbo and supercharger conversions in this section

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hass
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Post Tue Aug 28, 2007 5:50 pm

hi guys a bit confussed on the t3 and t34 turbos

is there a difference in the flanges

i have a t3 turbo manifold will a t34 turbo go on

thanks
mac325i
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Post Tue Aug 28, 2007 6:17 pm

Yes,

basically a t34 is a combination of t3 sized housings with t4 sized wheels

I'm sure someone will correct me if i'm wrong

hope this helps
fuzzy
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Post Tue Aug 28, 2007 10:57 pm

should be a direct swap. my t34 has a 4 stud mounting flange .
hass
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Post Tue Aug 28, 2007 11:04 pm

so if i was to get a t34 im guessing it'll fit straight on to my manifold.
and if ive got this right a t34 is a t3 with t4 bits?
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TheKoose
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Post Wed Aug 29, 2007 10:55 pm

Yes and Yes. T3 commonly found on Sierra Cossies in 55 and 60 trims. And the T34 as found on the Escos. Basically the manifold to turbine housing flange will match up if its the same as the first number of the (Garrett) turbo as Garrett utilises the family system (T1,T2,T3,T4 etc). So if the fanimold has a t2 flange, you could fit a t25, t28, GT28RS etc etc turbos on there. If it has a t3 flange then you can fit a t3, t34 on there etc. This is the case 99% of the time, but it does always pay to check.

Mark