Garrett 2860 -5 Turbo Killowat Potential

[XRATED]

Why 400kw?

Why not 350kw and lighten the car a little. Cheaper, everything lasts longer and still more power you will ever need on the street... Unless your racing!

Then 400kw costs you double... ha ha!

R3C

PPG Dog box

Diffs

etc.. etc..

How fast do you want to spend???

20K...lol

If i charged 20K for a 400KW engine id either be walking around with a stocking on my head or sipping Pina Colada's in the Bahamas.

I'm actually in the Bahammas right now (working- sorta)... You drink RUM here man! not penis-colada's ha ha ha

J.

[Phatboy]

So a $10k build won't be able to see over 400rwkw?

I need that sort of power in my daily driven GTR. You know, to overtake and stuff.

What do you need to overtake? Drag cars? I have 300 awkw and that's plenty for a daily - wouldn't really want anymore. Response is so much more important in daily city/suburban driving than is top-end power.

[GT-R32]

What do you need to overtake? Drag cars? I have 300 awkw and that's plenty for a daily - wouldn't really want anymore. Response is so much more important in daily city/suburban driving than is top-end power.

I was only kidding. I have (had until the turbo blew) circa that power in my car also. It felt about right for the car.

[Angus Smart]

Why 400kw?

Why not 350kw and lighten the car a little. Cheaper, everything lasts longer and still more power you will ever need on the street... Unless your racing!

Then 400kw costs you double... ha ha!

R3C

PPG Dog box

Diffs

etc.. etc..

How fast do you want to spend???

i got all that for sale if he wants to spend... haha

[im late]

very nice... yeh well im up around 14k with tune and build lol Thats NOT with the internals still internals need to be done but then thats it.Another 6k and i should be happy BUt im not going to stroke it.. i wonder how much max healthy boost i can give it with out the stroker kit

I got -5's, forged 2.6, 1.6 Head Gasket. It sucks balls for the street. Lacklusture response. A 2.8 (Like Gav's) would be awsome.

I am running 363RWKW @24PSI on pump 98. There is a bit more to play with on my setup but leaving it for now.

Turbos will go higher on PSI. Get your dyno to tune and boost till you start to see diminishing returns, i.e. your turbos stop making more kw at a cetain psi (which normally varies between engine setups).

Edited September 4, 2009 by im late

[Beelzebub89]

wouldnt a 1.6mm headgasket lower the comp ratio a fair bit hence your lack of low down power/torque?

[im late]

wouldnt a 1.6mm headgasket lower the comp ratio a fair bit hence your lack of low down power/torque?

Yes you are right. But I have a friend over here in Perth that has -5's with a stock thickness gasket and there is only a small response improvement.

I also have compression surge issues every now and then.

But yes a 1mm gasket would be ideal for moderate boost levels.

[GT-R32]

Pretty bloody confusing... I'm about to order turbos, will it be -5s or -7s?

I wonder how much different in rev terms they are in response?

[im late]

This question has been discussed over and over again on SAU.

The -7's will spool up quicker than the -5's. The -5's will always make more top end power and overall power over the -7's.

[GT-R32]

This question has been discussed over and over again on SAU.

The -7's will spool up quicker than the -5's. The -5's will always make more top end power and overall power over the -7's.

Yeah I understand that. Your post just made me rethink how laggy I would find the -5s.

That is a good thread on that topic:

http://www.skylinesaustralia.com/forums/7-...7s+vs&st=30

I guess going from 2530s I will find the -5s quite acceptable. -5s it is!

[Fishpaste~]

ummmm 2530 = -5's... pritty much the same turbos, just different brand (if anything, the 2530 would be better than the -5's)

and tho its been said too many times, -9's are better than -7's

[bigmikespec]

ummmm 2530 = -5's... pritty much the same turbos, just different brand (if anything, the 2530 would be better than the -5's)

and tho its been said too many times, -9's are better than -7's

What does "better" mean?

[bradsm87]

What does "better" mean?

Better means same or better response, ability to keep making power further and more of it too, ability to run a much wider range of boost levels and still have it in it's efficiency range and net good results, less heat generated so healthier on the engine. The list goes on and on. It's ok if a car already has -7 turbos but u'd have to be crazy to buy them now when -9's are available.

Edited September 5, 2009 by bradsm87

[Beelzebub89]

Pretty sure the -9s are supposed to replace the -7s. Near identical response with more top end.

[Fishpaste~]

What does "better" mean?

better = lots of things... but more importantly, different things to different people... there is already plent of info on SAU about these things if you would like use the handy search button

----------------------------------

endless responce and power information : click me

whole thread about responsive turbos : also click me

for those wanting higher HP twins : click me too

or 8 pages on this exact topic?? : rarara 8 whole pages!!!

----------------------------------

the real question is what do you want from your car??

then the guidelines are:

HKS better than Garret "equivalent"

HKS more expensive than Garret "equivalent"

-7/N1 > -9/GT-SS > -5/2530 > -10/GT-RS ... tho your probably better of getting a single than the -10/GT-RS for a 2.6

more responce >>>> more top end power

(just note, im not using > as "greter/less than" unless just showing size progression)

edit: should also give this the respect it deserves : clickety

Edited September 5, 2009 by Fishpaste~

[bradsm87]

better = lots of things... but more importantly, different things to different people... there is already plent of info on SAU about these things if you would like use the handy search button

----------------------------------

endless responce and power information : click me

whole thread about responsive turbos : also click me

for those wanting higher HP twins : click me too

or 8 pages on this exact topic?? : rarara 8 whole pages!!!

----------------------------------

the real question is what do you want from your car??

then the guidelines are:

HKS better than Garret "equivalent"

HKS more expensive than Garret "equivalent"

-7/N1 > -9/GT-SS > -5/2530 > -10/GT-RS ... tho your probably better of getting a single than the -10/GT-RS for a 2.6

more responce >>>> more top end power

(just note, im not using > as "greter/less than" unless just showing size progression)

edit: should also give this the respect it deserves : clickety

The flaw in that is the -7 doesn't have more response than the -9.

[ujin]

i m usin -5's on my r32 gtr, still 2.6L but forged.. makin 340awkw.. tuned it for response.. i get on full boost at 4000rpm (1.5 bar). but at abt 3000prm, i still get abt 1 bar of boost.. its not too laggy imo. if i sacrifice response, i hit 350+awkw on the dyno.

[Fishpaste~]

The flaw in that is the -7 doesn't have more response than the -9.

should be called a "rough guide"...

if they choose their turbos on those 5 lines of advice alone, god help us all...

[aDrew_C]

The -7's are an outdated turbo, the -9's eclipse them in every way - more efficient, more power for the same response. That seems pretty simple to me...

[GTRAAH]

Whether or not you can 'justify' a 20k build no one really cares, nor if it overcomes the value of your car or not.

The point is its piss easy to spend 20k having your engine rebuilt, turbos and fuel system and all supporting mods supplied and installed, tuned etc etc etc.

Ok yeah maybe some people like Dirt laugh at a 20k build for an engine, but seriously to have to this work done by someone for 20k isnt that funny.

Dirt did you install the engine yourself? I think the labour costs are being forgotten about here.

Im guessing GTAAH, youre having the work done by a shop or someone?

YEs labour is being done by someone.