Just to say that i picked up my gsp 600 turbos yesterday and was most suprised of what i found in the box .bearing in mind there ment to be chinese rubbish.

i found a peace if paper from turbo technics in nottingham. Showing them there indervidual balancing and vibration test..So am am i to asume that these were made over there.then shiped to england to be tested and balanced.then shipped again to the retailer.whitch in my case will be amazon in america .before being shiped backed to me.

.

is it worth using cheap turbos in the first place after all the pain and cost of removing the engine and rebuilding it then using cheap turbos seem like a stab in the dark if there any good or not I my self would wait till I could afford some know good ones with a good rep as am not a gambling man. I found over the years that buying cheap parts for performance cars seem more often than not to go pear shaped in the end and many a time I have lived to regret buying cheap parts. the old term you get what you payed for rings true.

Edited January 29, 201510 yr by dan300zx

is it worth using cheap turbos in the first place after all the pain and cost of removing the engine and rebuilding it then using cheap turbos seem like a stab in the dark if there any good or not I my self would wait till I could afford some know good ones with a good rep as am not a gambling man. I found over the years that buying cheap parts for performance cars seem more often than not to go pear shaped in the end and many a time I have lived to regret buying cheap parts. the old term you get what you payed for rings true.

 

I'm running the cheapest biggest turbos I could find between Leicester & Bristol at a day's notice. Second fastest Zed at TOTB by a long way after mapping it on the way there and arriving halfway through the second day :laugh:

 

It is a good point though, however I have seen so many issues with genuine aftermarket Garrett-based turbos, I honestly don't think it matters that much.

what turbos do you recommend am looking for about 650bhp at the wheel full engine rebuild ect not cutting corners ?

what turbos do you recommend am looking for about 650bhp at the wheel full engine rebuild ect not cutting corners ?

 

Who's building the engine? What's the full spec of your car?

am going to ask jimmer to do the engine build car is a tt uk car have fully rebuilt the front and rear sub frames with uprated bushes and lower springs and koni damper all ball joints have been replaced so all running gear is good the engine is stock at the will be uprating brakes same time as the engine rebuild

am going to ask jimmer to do the engine build car is a tt uk car have fully rebuilt the front and rear sub frames with uprated bushes and lower springs and koni damper all ball joints have been replaced so all running gear is good the engine is stock at the will be uprating brakes same time as the engine rebuild

 

Sorry, meant the full spec of the engine build & associated components.

 

Intake, exhaust, headwork etc. That will help determine what turbo setup to look into.

 

What is the purpose of your car once complete? Road, track, drag, car shows?

I was thinking 2.5 intake pipes z1 massive intercoolers 3 inch system rite through some head work with some uprated camshafts tho am not sure witch ones as yet forged piston ect I was thinking of this turbo http://www.z1motorsports.com/product_info.php?cPath=6_16&products_id=1451 or http://www.z1motorsports.com/product_info.php?cPath=6_16&products_id=94 road car but a a monster of one also race logic traction control am running 10j rear wheels at the mo with 285s

Edited January 29, 201510 yr by dan300zx

A comfortable 650whp will need a more than the two T28-based turbos you linked I'm afraid. I've worked with a high-powered Zed with Z1 GT600r turbos and he subsequently removed them to refit stock manuals, such was the poor performance. Going back to stock, he lost bhp (540bhp -> 480bhp), but made more torque (430lb·ft -> 480lb·ft) IIRC.He's now running GTX2860s and making 613bhp (fly) through a single intake!

 

At the kind of power you're looking to achieve, a full standalone ECU does become something to consider, although it's not essential. You need to be thinking outside the box really when shooting for circa 730bhp, not going on what is written on Z1's website.

 

Have a good discussion with Jimmer, and follow his advice with regards to the engine spec. We work closely together, he builds them, I map them :)

Edited January 29, 201510 yr by Noz

yes that was the plan he built it then ship it to you for the map.is the 613bhp with stock heads and 3 inch system ?

Ouch, I'm glad you relieved that Noel the gt600rs where on my shopping list, think I just took them off. I had heard rumours there had been issues with them as well but that just about sealed it.

will look at something else now maybe the GTX2863R

gt600rs ? gt600r is not the RS

 

the 675 / gt28RS / jwt700 is a good turbo with the 0.64 A/R. This is what Gibster was selling

was looing at the gt675rs http://www.z1motorsports.com/product_info.php?cPath=6_16&products_id=94

will look at something else now maybe the GTX2863R

 

I will be mapping a car with those very turbos either this Saturday or early next week.

 

I'm really not a fan of GTX turbochargers. They need at least 2 bar of boost, else you may as well use the non-billet versions. To get that boost level efficiently from a VG in the Z32 engine bay requires some serious consideration.

 

On the 613bhp car with GTX2860s, we disconnected the actuator pressure reference line to produce maximum possible boost. They only made about 1.8 bar.

I have the gt 600r and the power and torque was quite good I thought?

I will be mapping a car with those very turbos either this Saturday or early next week.

 

I'm really not a fan of GTX turbochargers. They need at least 2 bar of boost, else you may as well use the non-billet versions. To get that boost level efficiently from a VG in the Z32 engine bay requires some serious consideration.

 

On the 613bhp car with GTX2860s, we disconnected the actuator pressure reference line to produce maximum possible boost. They only made about 1.8 bar.

 

you got me stumped now not sure what turbos to use I will see what jimmer says so the gt675rs are not going to cut it and the gtx turbos need a least 2 bar

To get the most out of any turbo, you need minimal intake & exhaust restrictions. My little stock 1.8 CA18DET held 1.7 bar on a T70 to the redline. 3" turbo back exhaust, 4" inlet with a slight curve, 3" intercooler pipework, intercooler situated in the engine bay. My 2.0 3SGTE held 2.3 bar to the redline on a Greddy T78. The intake was a 4" pipe about 10" long with a massive K&N on it, the exhaust was a 3.5" almost straight piece of stainless tube straight out the side of the car.

 

Affectionally titled my "Stupid Side-Exit"

 

 

Before I had chance to cut it down:

 

Alternatively, for the Zed you have this:

 

Speak to Jimmer about some serious porting work.

Edited January 29, 201510 yr by Noz

I have the gt 600r and the power and torque was quite good I thought?

 

Very good torque on yours, but they didn't perform on this particular car. Jimmer didn't build his, either :)

gt600rs ? gt600r is not the RS

 

the 675 / gt28RS / jwt700 is a good turbo with the 0.64 A/R. This is what Gibster was selling

 

Sorry, gt600r's is what I was meaning not that that's what the turbo is called, whatever vendors want to call them garret 2560's those ones. Can't pick them up new from a turbo shop down the road for ~£600 each then I'd have to faff about but yeah.

To get the most out of any turbo, you need minimal intake & exhaust restrictions. My little stock 1.8 CA18DET held 1.7 bar on a T70 to the redline. 3" turbo back exhaust, 4" inlet with a slight curve, 3" intercooler pipework, intercooler situated in the engine bay. My 2.0 3SGTE held 2.3 bar to the redline on a Greddy T78. The intake was a 4" pipe about 10" long with a massive K&N on it, the exhaust was a 3.5" almost straight piece of stainless tube straight out the side of the car.

 

Affectionally titled my "Stupid Side-Exit"

 

[ATTACH=CONFIG]85238[/ATTACH]

 

Before I had chance to cut it down:

[ATTACH=CONFIG]85239[/ATTACH]

 

Alternatively, for the Zed you have this:

[ATTACH=CONFIG]85240[/ATTACH]

 

Speak to Jimmer about some serious porting work.

 

using gt600 turbos with 2.5 inch intake pipe massive intercoolers 3 inch system decats inc 3 inch down pipes head work and say one up from stock camshafts full rebuild etc what kind of boost level could you run what kind of power would you see ?

With my 600r turbos standard intercooler pipework and z1 intercoolers 555 injectors I got

564.7 engine HP

491.1 wheel HP

 

527.1 ft lbs engine torque

479.2 ft lbs wheel torque

This should be ok.3.5" inlet .290772015361 flebay item

With my 600r turbos standard intercooler pipework and z1 intercoolers 555 injectors I got

564.7 engine HP

491.1 wheel HP

 

527.1 ft lbs engine torque

479.2 ft lbs wheel torque

 

that's pretty good isn't it. I wonder how much extra you would get with the 3 inch system and 2.5 inlet piping ported head and uprated cam shafts and bigger injects wonder if you would get 560bhp maybe ? how do you car feel with shame you wasn't closer would love to see how it feels what clutch you using ?

With my 600r turbos standard intercooler pipework and z1 intercoolers 555 injectors I got

564.7 engine HP

491.1 wheel HP

 

527.1 ft lbs engine torque

479.2 ft lbs wheel torque

 

They are great figures. I don't really believe them though...

You don't believe them? You mapped it lol. Are you saying that the dyno was faulty?