Hi there all zx forum members i need some expert advice as you probably know im new to the zed experience and have bought a 300zx tt it had all sorts of problemswhich have been resolved by way of totally rebuilding the engine.now my worry is with the turbos..........I want to replace them with stock turbos but the prices are sky high it seems that i have to look for alternativr turbos. on the American ebay ive seen some t28 tubs off a nissan skyline (a distant cousin of the zx twice detached). What would be your advice? (i) will the turbos be too powerful for an unmodified engine albeit rebuilt.

(ii) will I have probs fitting them?

(iii) is there an alternative

(iv) does any one have ant tubs for sale that they may want to sell for a cheap price?

 

im stuck and i realllllly want to drive the beast.

>> (i) will the turbos be too powerful for an unmodified engine albeit rebuilt.

 

It's strongly recommended you use stronger internals and the least thing you need are bigger injectors.

But you can bolt on any turbo you want and set the maximum boost to a

level where the injectors can still provide enough fuel.

Although in this case you will never use the full potential of a particular turbo.

 

 

>> (ii) will I have probs fitting them?

 

turbos from (most) skyline won't bolt on to a 300 without a LOT of modifications.

The only exception are the turbos from a Skyline R34 Vspec2 N1.

These can be made to fit a 300 without too much trouble, for all other skyline turbos I wouldn't bother.

 

 

>> (iii) is there an alternative

 

My advise: Don't bother trying to find stock turbos (either new or used)

The stock turbos use the Garrett TB-series technology that's over 20 years old and turbos have improved very much since then..

a good choice would be a Garrett turbos from the latest GTR or GTRS series.

 

If you want near stock turbo characteristics then a good choise would be the Garrett GT25R (GTR series).

Note: These turbos are not plug and play on a 300 and need some modifications to make them fit.

 

If you want bigger tubs and depending on what sort of power figure and characteristics you want, you could choose for:

HKS2530's (GTR-series)

JWT530's (GTR-series)

 

the above turbos have been pre-modified and are plug and play on a 300 for the most part.

 

However, if you want to do the modifications to the turbos yourself, you can opt for:

Garrett GT28RS (GTRS-series)

Garrett GT28R (GTR-series)

Garrett GT25R (GTR-series)

 

 

the PE1420's (IHI turbos) are another good choise...comparable to Garrett GTR-series.

IHI turbos are well known in the Subaru and Porsche world and have a very good reputation as well.

The PE1420's have been modified by Power Enterprise (japanese company) to fit a 300 and other Nissans

 

Then there are also the Greddy TD05-16G or TD05-18G turbos.

Although the technology used in these turbos is old technology, they have proven to work very well and last for a long time.

Note: always buy these turbos as a complete kit for the 300...don't buy just the turbos

 

>> (iv) does any one have ant tubs for sale that they may want to sell for a cheap price?

 

I think I saw a (ebay) link to cheap HKS2530 turbos on here a few days ago..

thankyou very much for your advice ill try the link on ebay. ill let u know what happens.

ive found a single TD05-16G on ebay, item number 4572587796 what do you think, this is not a whole 300zx kit just tub off an evo 5