Steel Vs Ceramic Turbos.....

[Suprash]

I have an option of a set of UK steels, complete with wastegate, but I have been talking with a few people trying to find out the power differences between the 2. I always thought that steels were slightly more powerfull but a little more laggy. Im just wondering what peoples views would be of expected power output of bolting steels onto a VVT-i engine.

[Sharpie]

Don't think they fit straight on to your VVTI Ash

 

Nice Avatar btw

[Soonto_HAS_soop]

No, I think that you need the manifold at least, you may even need some other parts.

 

Makes it a complete PITA

 

Ben..

[Suprash]

I have ben asured that they are coming with all the housing, so will fit.....

[AMG]

As far as i am aware the housing and fitting is different, i am not 100%, but that is what i have heard. I would make sure before you splash the cash.

[dude]

I believe the only difference is that the T's bolt to the manifold with 4 bolts instead of 3 but i may be wrong as there is a first time for everything !!!!

 

dude:flame Dev

[Suprash]

Dude, can you double check this before I go ahead, otherwise I will be speaking with Leon in the next few days so will ask him.

 

Anyway, back on topic, has anyone swapped between J-Spec and UK turbos, what was the difference, how did they find the two in comparison, someone out there must fall into this bracket.....

[Sharpie]

I feel I'm going to regret saying this .....

 

Why would you want to put UK spec turbos on your car and it take a little longer for them to spool when you have been used to the j-spec ones ?

 

Would you not feel that this was a step backwards ?

 

Well, maybe not backwards but, If you fit them and you go out and have a blast you might not be happy with the different characteristics of them.

 

I have not driven a J-spec so, can't comment on the spool up difference from personal experience so, am happy with my UK's till they blow but, given the choice and from what I read on here, I'm not sure if the UK's are the right step for you m8.

 

Since funds for anyone at this time of year is not good, then maybe a second hand set of j-spec turbos are for you ?

 

However, all the above could be crap and is just IMO but, hope it helps chap.

[Ian C]

I know for a fact that UK spec turbos have 4-bolt exhaust flanges and J-spec have 3-bolt. That says to me that there may be other differences too, such as oil and waterway fitments. Do your homework carefully before shelling out.

 

As to the poll, the steel ones will lag a tad more - having driven mine with steel hybrids and stock j-specs on, the J's are noticeably faster to spool up. Psi for psi I think the differences would be marginal but the steel blades would endure higher boost better IMO. Once you'd driven a few hundred miles you wouldn't notice the slight extra lag anyway.

 

So I'd say get the UK's if you can get the manifold as well AND you are sure there aren't any other plumbing issues, but if a set of J-specs come up within £100 and are in good nick/mileage have them instead.

 

-Ian

[Suprash]

Originally posted by Ian C

I know for a fact that UK spec turbos have 4-bolt exhaust flanges and J-spec have 3-bolt. That says to me that there may be other differences too, such as oil and waterway fitments. Do your homework carefully before shelling out.

 

As to the poll, the steel ones will lag a tad more - having driven mine with steel hybrids and stock j-specs on, the J's are noticeably faster to spool up. Psi for psi I think the differences would be marginal but the steel blades would endure higher boost better IMO. Once you'd driven a few hundred miles you wouldn't notice the slight extra lag anyway.

 

So I'd say get the UK's if you can get the manifold as well AND you are sure there aren't any other plumbing issues, but if a set of J-specs come up within £100 and are in good nick/mileage have them instead.

 

-Ian

 

Ian C to the rescue, were ya been dude.

 

Pete, I hear ya, but as Im asking in this thread, I believed UK's will boost better than J-specs, which Ian has sort of confirmed, so its sort of a trade off in my eyes, slightly more laggy, but should hold better boost, or thats what Im hoping.

 

The reason that Im shying away from J-Specs, is that their ceramic, once bitten, twice smitten, and I dont really want another set to go on me, look at someone who bought their car with a duff no2, new turbos and it went again. What reliability would I have buying a set of J-Specs with 50,000 or 60,000 miles on them, and running 1.2/1.3b.

 

Ok next question, would steels be able to endure say 1.4b better, Im sure this is no brainer.

 

Pete, after talking with Gaz, why pay 2K for Hybrids, when a single could cost you £1700/£1800, and at the end of the day mate, I havent got £800 to spare for stockers and fitting, let alone 1K+........

 

Cars are a summer time thing, not to be done after Xmas

[dude]

Ash go to Supraforums , MK4 section > most boost on stock turbos , then decide !!!!

 

Dude:flame Dev

[Sharpie]

[dude]

Originally posted by Peter Sharp

 

Dont get cocky dude They need to run hi boost to get their lardy asses down the 7-11 !!!!!

 

Dude:flame Dev

[Suprash]

Originally posted by dude

Ash go to Supraforums , MK4 section > most boost on stock turbos , then decide !!!!

 

Dude:flame Dev

 

Dude, can you link it mate, Im logged in but the search button is broken well it seems I havent permission, tried crawling through the 19 odd pages of threads, but started to fall asleep, well it is late...

[dude]

http://www.supraforums.com/forum/showthread.php?s=&threadid=164449

 

Dude:flame Dev

[Ian C]

Originally posted by Ashley Willis

Ian C to the rescue, were ya been dude.

 

Drawing space invader pictures in chit-chat

 

Steelies should last a lot longer and would be a better 2nd hand buy from a durability perspective if they fitted, but if you've got access to a 20k mile old set of j's you should be able to count on them. I guess it depends on how well they have been looked after, both when on the car and when stored off it. I shifted my old J-specs just before xmas, they were >20k miles old and in great nick (and went for £500 as a yardstick/bargaining point for you)

 

If you change the manifold over you'll obviously need a new manifold gasket, dunno how much they cost yet, but I know the gasket set for the turbo swap is about £100 So budget for that too, as well as a coolant and oil change. Turbo swap is a bugger of a job to do yourself but you'd be saving hundreds of quid if it's practical to do so.

 

-Ian

[Ibrar Jabbar]

Anyway, back on topic, has anyone swapped between J-Spec and UK turbos, what was the difference, how did they find the two in comparison, someone out there must fall into this bracket..... [/b]

 

I done the J-spec to UK spec conversion on my old Kawasaki Blue Supra.

 

If you are fitting the lot with manifold than it will bolt straight on without any other modifications, apart from the fact, that you will also need to fit the UK spec 1st cat as the flange is different.

 

PS. I have the the complete set available if you havn't got a set already.

[Dragonball]

How much for the manifold and the extras to go with the UK's Ibbrar?

 

As a matter of interest?

 

Are the gaskets different too?

[Ibrar Jabbar]

Paul,

 

I want £450 for the lot, the turbo's are in good working order.

 

As far as I remember the gasket which mates the manifold to the block is the same.

[Wipeout]

Look Here

 

This might be of some help to someone.

 

Is this anyone on here??

[CJ]

Originally posted by Wipeout

Look Here

 

This might be of some help to someone.

 

Is this anyone on here??

 

It is Martin F