Ahyesican

Ok here's my buddy's parts list:
Brain crower 288 cam shafts
Ets 1.5 equal length manifold
Gtx 3586 turbo
Arp head studs
Arp engine bearings
Wiseco 9:5.1
Eagle H beam rods
Ets 2.5 intercooler piping
Precision 1000cc
Aem ems
Aem boost solenoid
Aem 5bar map sensor
Aem fuel rail
Fuellab regulator
Quarter master twin plate
Tial 50mm bov
3" Invidia downpipe
4" Exhaust
Spark tech COP with cdi
Cusco diffs.....he says there are still some other stuff he wants to get, like head work etc.

If it's that easy to get the 450-500 mark at the crank I think I'll be there by next weekend. Do you rate the FP red above the GTX3076? And the FP red seems to be a lot more than the gtx as well

MrLith

GTX3586R? Never heard of that?

sparky

iTrader: (1)

The GTX3076 has a larger comp wheel than the HTA3076. Consequently the GTX3076 definitely moves more air than the HTA3076(or the FP Red, for that matter). The GTX 3076 flows about 64 lbs./min. whereas the HTA3076 flows about 57 lbs./min.

The FP Red does not flow quite as much air as the GTX 3076. The Red in fact, flows somewhere between 57-60 lbs./min. Thus, the Red is about equal to the HTA 3076 with respect to compressor flow. Frankly, the Red is not that shabby for a bolton turbo.

I'd be willing to bet that a Red in BB format will outspool either the HTA 3076, or the GTX 3076, all else remaining equal. So, a BB Red should prove to be more responsive and fun on a 2.0L engine than either of the 3076's in single scroll T3 guise.

IMO, you'll still need to do some more research to decide which of these turbos will produce the most power on your really crappy pump gas. I do know that Buschur and Mellon have both tuned the Red to run at 27-30 PSI on 93 octane gasoline.

EDIT: Incidentally, another bolt-on option worth considering might be the soon to be released CBRD BBK-C(ball bearing of course) which is supposed to flow right around 62 lbs./min.

Ahyesican

i could cry...some ppl swear by the gtx and convinced me but then i started to look deeper and now it seems they aren't that great...based on what i was hearing b4 i never even thought of the RED...

the guy's GTX35R's actuator broke tonight when he was tuning after a few pulls, i haven't heard of any incidents like this before with the 35r so i'm hoping it was just his luck....i didnt even get to feel the hog yet

240Z TwinTurbo

iTrader: (25)

My results thus far on 93 octane with GTX3076r and stock 2L bottom end. The supporting mods and manifold/turbine housing used are just as important as turbo selection and will have a significant affect on overall spool and performance. Unfortunately, it is not as easy as just selecting a turbo.

MrLith

I'm not convinced that the extra claimed flow of the GTX3076R will equate to anything tangible in the real world, the GT30 turbine will probably be the limiting factor before the extra flow of the GTX allows any real advantage over the HTA to be shown. Whats the most anyone has made on a GTX3076R?? Buschur made somewhere around 600whp on a Mustang with an HTA76...

sparky

iTrader: (1)

You might just be right. When it's all said and done, I expect that both of these 3076's would be extremely close power producers. So much of it will depend on the old adage that, combination is everything. Furthermore, the low knock resistance of the available petrol on his island is going to place relatively more importance on tuning his Evo's AEM ECU so as to maximize power within safe limits.

sparky

iTrader: (1)

240Z Twin Turbo, has a couple of super interesting and cogent threads relating to the GTX 3076R on here. His setup is hyper-impeccable and not ordinary at all, however. It is definitely worth reading.

Among other things, he designed and custom fabbed his own short runner tubular manifold. His GTX 3076R is configured with a custom T4 T.S. housing and a ported and polished cylinder head.

spdracerut

iTrader: (2)

Garrett does have the GTX3576.....

MrLith

Yes, I am well aware of that - and their decision to do that its part of my grounds for believing that the extra flow of the 77mm GTX wheel is relatively redundant on a GT30 turbine... and when combined with a GT35 turbine the spool and response levels will take a big backwards step and you may as wel be comparing a GT3582R with a GT3076R

Ahyesican

I've seen 240Z post and build, the man is an engineer.
Its true the AEM will have a lot of work to do on this car with this gas, it's really a huge difference with VP. I'm definitely gonna need another car if my petrol bill is only gonna get higher from here on out. But boost is so addictive.

So, I ordered the atp gtx from slowboy, mike swears I'll love it.....let's say I could have just gone with an HTA or GT but I have the GTX....what other stuff u guys think I'll need to get 450whp? Is it even possible with more mods on the 89 octane fuel here?

spdracerut

iTrader: (2)

Actually, the GTX3576 should spool and respond very closely to the GTX3076, except free up about 50whp or more due to reduced back pressure. The reason the 3576 should spool and respond very closely to the 3076 is due to much better turbine efficiency. This article may aid your understanding.

http://www.motoiq.com/magazine_artic...p-details.aspx

Ahyesican

Hks sell a turbo combo like the 3576, think they call it a hybrid, its a gt35 compressor and gt30 turbine. There was one for sale here on the forum that made me check them out

240Z TwinTurbo

iTrader: (25)

That is cheating...you obviously saw the results Got my GTX3576r on order

MrLith

I am well aware of the better match, and have from the start considered the GTX3576R as synonym for a GT3582R - I have never been a fan of the GTX3076R idea (much like I'm not a GT3082R fan)... for this very type of reason.

The trick however is that while the GTX3576R is a better match, it still has higher inertia- once you get that tip speed up I'm sure it will respond very nicely, but the catch is the turbo isn't constantly spinning at the rpm required to get the compressor flow required to make your target power, you have to accelerate the wheels up to the point you get that tip speed before you get to reap the benefits of it.