Hello,

 

Thought I joined this ages ago havent nevermind sorry.

 

Anyway I've got a TT im currently restoring, I was told it needed a turbo rebuild by the previous owner. Feel a little annoyed as I've taken it to get a rebuild and discovered that both turbos are goosed and need new cores. Thus far I cannot find any anywhere, so options:

 

Find some Garrett turbos from someone, rebuild and install

Find new Garretts

Buy and fit different turbos

 

I need some help and guidance with this guys, I'm kinda clueless with this problem. Obviously quite upset but the car has no rust, has been well kept and I'm going to restore it fully, I'm not letting it die, but I need help with this.

 

The only thing I've found so far is a pair of Mambo turbos (6+6) for £1650 - but I've no idea if they're a decent turbo or not and no idea which I'd need if they are decent turbos.

 

http://shop.mambatek.com/searchquick-submit.sc?keywords=300zx

 

Can someone please give me some advice on this problem. My mechnic is even asking me if I know of any places as Midland Turbo Specialist cant find the cores, I gave him the number for Z centre.

 

 

Anyone help?

 

Thanks

You need to talk to Jimmer at PowerZed. He has experience with just about every turbo application available for the VG30 and could advise based on your requirements. Some units will be significantly larger than stock and potentially require modification to fit, for example many aftermarket turbos require 5 bolt downpipes.

Hello,

 

I've taken it to get a rebuild and discovered that both turbos are goosed and need new cores. Thus far I cannot find any anywhere,

Thanks

 

 

Yes Paul as you have found new turbo cores for factory turbo units are hard to find now, we came across the start of this a few years back when our turbo re-builder explained that the cores are no longer made and used ones often are unusable if they do not pass x-ray tests etc.

 

Not sure about the mambatek units, no personal experience of them, as advised above speak to Jim at PowerZed, he is the go to specialist, Z Centre are a parts only supplier without any workshop experience, Jim is both and more.

 

http://www.powerzed.com

 

Jeff

Not sure about the mambatek units, no personal experience of them, as advised above speak to Jim at PowerZed, he is the go to specialist, Z Centre are a parts only supplier without any workshop experience, Jim is both and more.

 

http://www.powerzed.com

 

Jeff

 

Thanks, I'll phone him in the morning.

 

Do you guys know of any compatible replacement turbos?

 

Thanks

It all very much depends what you're after from them. I personally don't think big turbos and a million bhp is the way forward, keep them small and responsive to keep the power band lower.

 

There are lots of options regards aftermarket turbos, the biggest selection of which is on the Z1 motorsports website (which Jimmer uses), but there's also CZP and SpecialtyZ choose from. All come generally well recommended. For info, stock turbos are still available if that's what you're after.

i personally don't think big turbos and a million bhp is the way forward, keep them small and responsive to keep the power band lower.

 

Finally a voice of absolute reason unless of course you like been down the pub, boasting bhp figures!

 

Jeff

Finally a voice of absolute reason unless of course you like been down the pub, boasting bhp figures!

 

Jeff

 

Didnt say anything about putting bigger more powerful turbos in.

 

Update on the iddue though, I managed to find some stock turbos have had them refurbed and are now going back in the car.

Didnt say anything about putting bigger more powerful turbos in.

 

Update on the iddue though, I managed to find some stock turbos have had them refurbed and are now going back in the car.

 

Ah sorry bud, was not referring to you wanting bigger turbo`s, but generally non standard one`s are seen as an "upgrade" what ever that is? keep looking sure you will find what your looking for.

 

Jeff

Got a real bug with people doing mods like this haven't you Jeff. Bigger brakes, more power it all seems to upset you.

Got a real bug with people doing mods like this haven't you Jeff. Bigger brakes, more power it all seems to upset you.

 

No not really, do not have a problem with it per-se , just seen so many zeds in particular having big money spent to chase the big power dream, only for owners to be disappointed and often out of pocket big time, often said expectations and idea`s come from billy bull shit down the pub or from the internet.

 

Of course there is many who have taken a sensible route and ended up with modest and usable increases in power and general performance for very little outlay, its the 500 bhp + builds that are less clear in practical use, drive-ability, and long term reliability, often at the expense of getting a high rolling road figure and print off, most of them have no direct correlation to using the car to go shopping at Asda of course.

 

Many big builds take too long and use so much of the owners spare cash that once complete the urge has been lost and often the car is sold to pay off the credit card bill.

 

Non of my thoughts are to be taken personally, its each individuals choice, but my business view was not to over sell a customers expectation back them in order to just illicit more of their cash, that was a problem some years back with a good few places.

 

Hence other than mild chip and boost upgrade I did not go much further, maybe bigger injectors at a push, now at 25+ years even rebuild the engine design is lacking now, they were and are still great cars, but if you want 500 bhp, do what I did and buy one that came like it from factory, way more reliable and cost effective.

 

 

Jeff

Edited October 10, 20178 yr by JeffTT

That was a rather long response. Thankfully you can take a modest middle approach, especially with developments in VG tuning that allow response and power in the 4-500hp range and not have to limit yourself to a generic chip that only puts down about 30-40 extra hp and is probably wrong for your engine and fuel in the first place. It's always better to buy car that's more powerful from the factory but where's the fun in that.

That was a rather long response. Thankfully you can take a modest middle approach, especially with developments in VG tuning that allow response and power in the 4-500hp range and not have to limit yourself to a generic chip that only puts down about 30-40 extra hp and is probably wrong for your engine and fuel in the first place. It's always better to buy car that's more powerful from the factory but where's the fun in that.

 

 

Yes my response was a tad long but it was intended to explain your misunderstanding of how I look at some of the zx engine tuning methods, nothing more, nothing personal.

 

Of course over the time the zed and the vg engine has been around tuning methods for the engine have evolved, but I must make a point about the "Generic" chip term and expand upon it >

 

Genetic

adjective

general, common, collective, non-specific, inclusive, all-inclusive, all-encompassing, broad, comprehensive, blanket, umbrella, sweeping, universal, cross-disciplinary, interdisciplinary, multidisciplinary

 

The chip that was written in the early Nineties was taken from the base of a standard 300zx map by John Wolf Technology in the US. the base map was genuine Nissan, the adjustments to the ignition, the fuelling, the variable valve timing, the rev limit, the speed limit were all written specifically for the vg engine. Generic is really a misnomer, it refers to a "non-specific", "broad" and "common" description, the JWT chip is non of them, and anyone who knows about the mapping and chips available over the past 20 years in the UK will know the JWT map has been copied over and over, even Superchips UK did their own version, making very, very slight changes to appear different, that said it remains the most popular inexpensive way to get real noticeable gains without clearing your bank account out.

 

So given that the map is available still today and many, many zeds are running well and safe and have been for at least the last 20 years kind of negates your comment " a generic chip that only puts down about 30-40 extra hp and is probably wrong for your engine and fuel in the first place"

 

There has been some notable players in the mapping scene that came out with the magic numbers in recent years, originally derided for the claims, 450bhp + 500 bhp + in the main from just a live remap. But in time the claims were looked at with interest and a good few zeds were remapped by the new comers, time however has not been kind to the mappers or the engines they worked on, and it must be mentioned that it has not gone unnoticed that the newcomers came and went, gone ! gone with the cash and left the black smoking vg engines that were created behind, some no longer usable.

 

Anyhow, its up to you guys what you do, just my opinion, one that was formed over the many years working exclusively on zeds, and the fall out that big idea`s and battered wallets can cause, oh and buying a car that's more powerful from the factory is great fun, repeatable performance, no "what is that noise" to worry about and still exclusive enough to feel your car is special, is that not what we all want ?

 

 

Jeff

 

My factory stock engine

Edited October 10, 20178 yr by JeffTT

I think you've demonstrated quite adequately how my application of the term generic was apt, copies of copies from foreign companies... of corse I know you have your least favourite people, that's never been a secret and I don't really care but I'm sure you will admit that a professional and tailored approach has its advantages over the generic. Note I use the term professional, as we all know that's something rather different to someone who just decided to be a "mechanic" today.

Note I use the term professional, as we all know that's something rather different to someone who just decided to be a "mechanic" today.

 

Erm....ok :confused1:

 

Jeff