been offered this turbo off a mate's nissian

Comp Wheel
0.60 A/R Cold Side
Ind: 54.00 mm
Exd: 70 mm
Trim: 60
Turbiner Wheel
.64 A/R Hot Side
Ind: 52.90 mm
Exd: 45.47 mm

what power would this be good for and would it be laggy?

thanks

No help with power, but what exhaust system do you have? Are you running a standard turbo and exhaust at the moment? The standard turbo has a V band connection to the downpipe, so assuming it's a 200SX or Pulsar that turbo will need a v band adaptor to make it fit with the standard downpipe. Either that or you'll need a new downpipe as well.

sizes are very similar to a gt2871r there,so expect 400 wheel horsepower with fairly good spool.is it t2 or t3 flanged?

im getting a full exhaust made 3"

its a t25 flange off a 200sx

i know hes running around 290bhp, and its only a generic chip and not much boost, and im aiming for low 300bhp with a flea map

on a 20vt that should be a good turbo for your needs then,300bhp on low boost easy

You know this flange business really has me flumuxed! Can someone please tell me what fit's the 20VT? T3 T5 T25???? Or do they all with the correct adapter plate?

Do lada's have turbos Phil

Yes, big T3245632 flanged ones

Thanks for clearing that up Phil

Sorry for the interrupting your thread Jack. I was going to say sorry for hijacking it but it didn't make much sense!

16vt has a t3 flange
20vt has a t2 flange
you can get adaptor plates

Thanks GS

20vt has T28 flange, not a T2

T2, T25, T28 all the same flange.

Fair enough

t2 t3 etc is the flange size
t25 t28 t35 etc are common turbo names

Yes, the flange size is for the manifold though, i think patch is referring to the exhaust side. The standard coupe turbocharger connects to its exhaust downpipe by a V-band, which is a round exit from the turbo that allows a round entrance on the turbo to insert into the downpipe that is then secured by 2 half sphere bands around the edges.

Most rollerbearing turbos use a 4-5 stud exhaust flange which is 2 metal surfaces that are machined flat then bolted together, much like the manifold to turbo.

no,patch asked about t2 and t3 flanges.you are referring to something completely different.and the standard garret type 5 bolt flange has nothing to do with the type of bearing the turbo uses.you can get journal and roller bearings fitted in the same turbos. i know of many journal and roller bearing turbos with either,and some with completely different rear end flanges.
a 20vt is a t2 flange
a 16vt is a t3 flange
the basic difference is the physical size of the flange and bolt spacing.

v band flanges do not fit inside each other,they are flat surfaces with the plan view of a top hat section,these 2 flanges are the same size as each other and butt up against each other at the wider end. the v band itself is circular with a v shaped cross section that is placed around the outside of the mating surfaces with the point of the v pointing away from the flange and,as tightened will put uniform pressure on both flanges to create a perfect seal so no gasket is required and using only one bolt,the v band can be made in as many sections as required,not just 2.

Good job I asked ah! Blimey! Confuuuuusing!

Basically you have misinterpreted my attempt to simplify the assembly of the coupe turbo/exhaust system for patch so you can appear to have some semblence of knowledge on the subject. The turbo fits inside the downpipe on the coupe end of.

Prat

pictures are worth 1000 words,or more!lol
t2 flange
[img]http://www.jgstools.com/turbo/tk010p.jpg[/img]
t3 flange
[img]http://www.jgsturbo.com/tk030p.jpg[/img]

garrett 5 bolt flange
[img]http://straightlinespecialties.com/shop/images/HPIM2169.JPG[/img]
v band flanges
[img]http://www.vibrantperformance.com/images/press8.jpg[/img]
v band clamp
[img]http://www.atpturbo.com/mm5/graphics/00000001/Catalog%20Images/Clamps/CLA-VBAND-225225.jpg[/img]

Akeme I agree with you about the turbo sleeving into the downpipe. Requires much wiggling around to get everything to fit back right if you don't loose off the downpipe mounts. You now know how gs racing just incase you ever want to try take a turbo off a coupe in your life , jason

no need for verbal abuse!
i merely answered the question,he asked about t2 and t3 flanges,you appeared to have gotten the wrong end of the stick and i was trying to help.i dont need to try to have knowledge on these things,i have worked with more v band clamps than most people having been an aircraft technician for nigh on 10 years!
my post was not an attack on you at all,but your description of the system was wrong,and patch seemed confused,incorrect info will only confuse the situation further.

Actually, both you guy's are helping a great deal. Thanks, you would both make a great team working together making a decent and readable 'turbo demystification guide...

my coupe is 16vt and is set to be v band shortly

no probs patch,anything you wish to know let me know as im involved with turbos quite a lot

ps
how do you get the smileys on here?

Click 'Switch to Full reply screen' in red below (look) and then click on the icon with the smile on his face, there are loads to choose from.

Alternatively, just type a : then a ) but no space in-between them

we're both learning,cheers

Yep, also, if you ever want or need to learn something totally irrelevant, send Proccy a PM