Quick turbo questions :)

[ashmk3 0]

Right there a turbo on eBay it's a T04E with ar .84 hotside and ar .60 coldside. It's in need of a rebuild. But nothing I'm not scared of doing or getting someone to do. My question is:

Are those ars good as in reasonable spool ie not to quick as to break gearboxes but not laggy like a cosworth.

What sort of power will this turbo produce?

I think I'm going to slowly get parts together, and as I work at an engineering place should be able to make a few bits and bobs myself.

Also anyone put a charge cooler in a mk3 bay? As I like the stealthiness, but is the added weight of a water tank worth it?

Then again boost paths are shortened which I believe helps spool? I'll also be going SRI.

[michael5556 247]

Definitely go for the charge cooler if your having an Sri too. Boosts so much better. Wish I would of kept mine. As for the turbo I'm not sure, wait for the experts lol.

[ashmk3 0]

Yh I love the tidiness of the bay with a charge cooler and it has it's own benefits such as better cooling, quicker spool.

[michael5556 247]

Well have a look at some schimmel set ups. I know they are American but you get the jist..

[Daverse 175]

Schimmel chargecoolers are ace, i think they claim something like a .25 psi loss, or something like that. but if your handy with a welder or know someone who can weld ali quite well you could knock one up with a small rad and pump to go with it. to be honest im really struggling getting my (michael556's) chargecooler set up installed, struggling with the fiat uno radiator becuase the fans are quite wide. but do it right and they can look pure stealth

[ashmk3 0]

Gonna go browsing now also I don't really want to change much styling wise on the mk3. It's quite a slow unassuming car

[Daverse 175]

Yeah thats how i like it, perfect for slaying porsches i like the look of intercoolers on mk3s, but i prefer to pray on the unexpecting!

[ashmk3 0]

Exactly!

Just looking at sp performance, and for what you get his pricing isn't that bad. Yet to look if they include shipping tax etc I'm guessing not. But it's certainly giving me an idea on what's going to cost what and how things work and fit together.

Just unsure wether the T04e is a good turbo to go for obviously I want more than 300hp ideally I would like 350-400 as it will be a daily and Inthink I'll poo my pants lol.

[Daverse 175]

Yeah shipping and import tax isnt included, and it aint cheap, so make it count! As for the turbo im not too sure, you'll have to wait for someone in the know to advise

[FishWick 21]

It's not worth buying a knackered turbo. "In need of a rebuild" could mean any number of sins which you won't know the extent of until after you've handed your cash over.

If you want to keep your engine in one piece, always buy a new or trusted s/hand turbo.

As for the chargecooler thing, the throttle response is loads better. I've driven a few Corrado VRTs with normal front mounts, home made Charge coolers and obviously my old Schimmel chargecooled engine and the Schimmel setup was just waaaaaaaaay more responsive. Really low intake temps too. For me the weight of the water tank etc was worth it, but it is a really expensive setup unfortunately. The best stuff always is pricey :-(

[ashmk3 0]

Well this is true, I suppose it needs rebuilding for a reason. And I don't intend finding out what that reason is. So I have decided I'm going to save some money then hopefully come winterish time, I'll be able to buy a large number of bits.

Is a t04e a big enough turbo or Is it too big?

I definitely want to go with a charge cooler set up, as they don't give the game away in rear view mirrors and help dramatically with boost and temperatures. So in my eyes there good enough reasons to either get a sp one or find a second hand one.

Other charge coolers out there are the 1.8t ones I found one for sale a while back not sure if that'll be unable to cool the air etc enough.

I'll write a list of what I think I'll need etc an post it up.

Cheers

[FishWick 21]

I'd aim for a T60-1 / GT35R sized turbo myself but I've seen VRTs use T04Es before. It's not a big turbo, so the top end will choke a bit sooner than a larger one.

[ashmk3 0]

Yes I have since, found more forums that have taken me quite deep into various turbo builds. And a gt35 is the one for me or that size anyway.

Another question, what ate these anti surge turbos? And do the holes actually work?

And is it me getting confused or is it fact that waste gates are different to dump/blow off valves?

Sorry for the questions I just want to make sure that before I go into this I know what I'm talking about and what everything does

Thanks

[Daverse 175]

They do the same thing effectively but ones for exhaust gasses and ones for boosted air

[UnitedMotorsport 55]

Another question' date=' what ate these anti surge turbos? And do the holes actually work?

[/quote']

Not really, all they seem to do is hurt air flow at high speed.

And is it me getting confused or is it fact that waste gates are different to dump/blow off valves?

A waste gate is used to control boost, by controlling the amount of exhaust gas the flows around the turbine of the turbo.

A dump/blow off valve is used to decrease the pressure in the pipe work between the turbo compressor and the throttle plate, when the throttle plate is closing. This is to stop the turbo from stalling.

[ashmk3 0]

Excellent info. Thanks guys got to love this forum.

[FishWick 21]

If you get a GT35 or T60-1, get one with a plain compressor housing, but definitely avoid the bullet hole style anti-surge housings as they are noisy too!

[ashmk3 0]

Sorry to sound stupid. But what do you mean by plain compressor housing?

[UnitedMotorsport 55]

No anti surge machining.

[ashmk3 0]

Yh that's what i thought he meant just wanted to double check thanks guys. Also UM I know that someone on here sent you there Ecu with a list of the spec of his turbo build and you mapped the Ecu accordingly. Do you still do this?