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Old 11th September 2003, 12:33 AM   #1 (permalink)
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what do i need for 600hp

Hi, ive just transferred from the cosie to the skyline life. Imported a 33gtr. Came with exaust, induction kit, hard pipe kit, blitz intercooler, blitz oil cooler, oil filter relocation, full circle earth kit, hks evc, etc. nothing major really. Could anyone tell me what i need for 550-600 hp with good torque. Would if possible like to know cam specs ie lift and duration , injector size, possible on standard compression, etc.... Grateful for any help.
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Old 11th September 2003, 01:58 AM   #2 (permalink)
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Just about to

embark onto the 600bhp scene. Leaving my bottom end standard.
Quite safe apparently. You could start with bigger injectors, like
600cc which I happen to have a set for sale. (see for sale section)
Cheers

James
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Old 11th September 2003, 07:47 AM   #3 (permalink)
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Re: what do i need for 600hp

Quote:
Originally posted by Taner
Could anyone tell me what i need for 550-600 hp with good torque
............lots of money.

If you want good torque you need to go for biger capacity (2.7, 2.8 or 3L). That could cost a few quid depending on what kit you go for. Having horsepower is all fine and dandy but it depends on what you want out of the car. Big single turbo will make a huge difference but it will make it top-end orientated. Keeping larger singles will give beter low down performance. Okay so this is a big generalisation but you get my drift .

I guess you whould think about what type of car you need, where you want the power band and how you intend on using the car first.

Just my thoughts on the matter. Oh yeah, and if you're unsure ask a few people with different set-ups and see what the cars perform like.
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Old 11th September 2003, 07:54 AM   #4 (permalink)
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Re: Re: what do i need for 600hp

Quote:
Originally posted by Fuggles
............lots of money.
I'll second that John .

But all being said 600+ is such a buzz .

Glen
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Old 11th September 2003, 09:49 AM   #5 (permalink)
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GT-R Tuning

I've threw in the towel about even trying to get 600+ bhp after working out the associated costs. I'm settling for a nice and reliable 500 to 550bhp spec...

Here is a _VERY_ rough guide to tuning. obviously there are a million different route to power you want and the choice are very different depending on type of power and torque you want and the way you will drive it, e.g. drag, track, road car, etc. Therefore this should be seen as a simple 'snapshot' of one possible way to big power. Good luck!

A estimate of costs;

Standard to 400 bhp various, up to £5,000
Standard to 500 bhp, £10,000-£15,000
Standard to 600 bhp, £15,000-£20,000 *(this can bloon if any rebuilds are needed)
Standard to 700 bhp+, £25,000+

(I'm sure some of the big 'hitters' on here will be able to fill you in more)


320 bhp spec :::::::::::::::::::::::::::

Standard Factory GT-R


360 bhp spec ::::::::::::::::::::[ MILD ROAD SPEC ]::::::::::::::::::::::::::::

oil cooler kit (imports)
exhaust system including muffler backbox
exhaust race cat or anti-cat pipe
exhaust front down pipes
hi-flow induction kit or airbox panel filter
*(at this stage of tune on std turbos you may need an exhaust restrictor to stop overboost depending on exhaust design)


400+bhp spec ::::::::::::::::::::::[ FAST ROAD SPEC ]:::::::::

360 bhp stage plus;

cams, e.g. 260'/260', 9.15mm lift+verniers hks/tomei/apexi/trust/jun/etc
boost controller hks/apexi evc-r/pfc solenoid
steel gasket kit (head,plenum,manifold) hks/nismo/tomei/trust
iridium core plugs hks/nismo/trust/ngk/etc
metal intercooler pipe kit hks/nismo/etc.
uprated friction pad material ferodo/nismo/top secret/etc


500+bhp spec :::::::::::::::[ GOOD TRACK DAY / FAST ROAD SPEC ]:::::::::

400bhp stage plus;

hks gt-ss + actuators hks 2530's
uprated intercooler tomei/apexi/trust/etc
270l/ph fuel pump & x6 injectors nismo/nippon denso/apexi/etc.
remappable ecu, e.g.hks fcon or powerfc hks/apexi/mines/etc
hks twin plate clutch hks/nismo/os giken/etc
z32 afm's (pair) nissan/nismo/mines
oil catch tank cusco/arc/custom/etc

optionals for track usage ;
- uprated large radiator nismo/pace/etc.
- large brake conversion (6-piston kit) various
- fully adjustible coilover suspension various/e.g. nismo s-tune
- uprated engine mounts nismo


600+ bhp spec ::::::::::::[ COMPETITION TRACK / EVERYDAY CAR SPEC ]::::::::

500 bhp stage plus; (the big £££ money stage)

more aggressive cams + springs, valves, valve guides
hks 2535's or trust t517z's with actuators (i.e. bigger turbos)
turbo elbows
turbo manifold
drag spec intercooler
enlarged plenum chambers
triple plate clutch

full engine rebuild including ;
- forged pistons (or try a nice 2.8 litre stroker kit!)
- forged con rods (shot peened & balanced)
- uprated bearings
- uprated head bolts
- uprated water pump
- uprated oil pump
- uprated oil baffle
- trust oil sump big capacity extension


700+ bhp spec :::::::::::::::::::::[ RACE CAR SPEC ]:::::::::::::::::::::::::::

600 bhp stage plus;

huge twins (e.g. HKS 2835's) or big single turbo (e.g. HKS T51R !!)
N1 racing, 'seasoned' block
modified ported & polished head
standard or uprated crank (nitrated & balanced)
dry sump lubrication
uprated drive shafts
uprated suspension
carbon fibre prop shaft
quadruple plate clutch with sequential 'dogbox' transmission
3kg titanium large bore straight through 'drag' system & downpipes.

interior strip out and weight reduction (200->300kg saving) ;
- shell seam welded
- carbon fibre bonnet
- carbon fibre wings
- carbon fibre boot lid
- carbon fibre door skins
- carbon fibre mirrors
- carbon fibre dashboard
- carbon fibre race seats
- carbon fibre rear spoiler
- etc.
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Old 12th September 2003, 01:32 PM   #6 (permalink)
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Tuning step parts list, 400, 570, 600...

Here's some tuning parts options and very ~estimate~ power outputs (power varies from engine to engine). I've only given some example part supplier for the relevant parts, hks pretty much make all stuff but are expensive while other brands vary...

Experienced owners please/amend this as I'd appreciate comments since I'm going down this route myself soon...

Standard (320bhp)
engine oil-cooler ( nismo )

Stage I (approx 400bhp @ 1.0 bar)
reprogrammable or piggyback ecu ( apexi/hks )
electronic boost controller ( apexi )
cams, inlet + exhaust & verniers ( tomei )
panel filter & guide or cones ( nismo )
exhaust, full system, race cat and front pipes ( nismo )
metal pipe kit ( nismo )
iridium spark plugs ( nismo )

Stage II A (upto 570bhp @ 1.4 bar)
*HKS GT2510 roller bearing turbos + actuators ( hks )
exhaust, turbo outlet pipes ( mines )
steel gasket set (head, plenum and manifold) ( nismo )
600cc injectors, fuel pump and fpr ( nismo )
Z32 80mm AFM's ( nismo )
Twin-plate clutch ( nismo )
oil catch tank + oil head drain back piping ( cusco )

*also try HKS GT-SS's (not sure of power, anyone got an idea?)

<<< OR >>>

Stage II B (upto 600bhp @ 1.4 bar)
HKS GT2530 roller bearing turbos + actuators ( hks )
exhaust, turbo outlet pipes ( mines )
steel gasket set (head, plenum and manifold) ( nismo )
650cc injectors, fuel pump and fpr ( nismo )
Z32 80mm AFM's ( nismo )
Twin-plate clutch ( nismo )
oil catch tank + oil head drain back piping ( cusco )
*oil pan extension & high flow oil pump ( trust )
*engine uprated conrods & bearings ( trust )

NOTE: I talked to some people recently and they suggested that for 600 bhp the standard factory aluminium pistons where fine (!?) and in fact where actually less trouble than the forged items - Is this true? All they mentioned where that the connecting rods and engine bearings where the weak link and should be uprated for this level of power.

Anyone know if there is any truth behind this???

<<< OR >>>

You can go for Stage II B but run them at less boost (less power) while waiting to get the internals (conrods, etc.) done. Obviously stage II b is more 'turbo' laggy than Stage II A but you've got more scope to squeeze even more power out at a later stage... the choice is yours...


Cheers


Trev
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Old 12th September 2003, 09:31 PM   #7 (permalink)
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If I were to start again and go for cheap power I think I would just bolt a big single onto a fairly standard engine, uprate the cooler, pipework fuelling and ecu.controller and wait for the lot to go bang after a year.

Then I would build me a decent engine out the money I saved and the extra money I had from the year I used the first setup.

J.
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Old 13th September 2003, 07:52 PM   #8 (permalink)
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GTSS Turbos...

Upto about 560bhp, less lag than other tubs and more torque....

I don't think you'll see 570 for 2510's though on a standardish engine
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Old 17th September 2003, 01:06 PM   #9 (permalink)
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as a lot of you said there are many routs to take for the 600 number, here is a nice easy way, wihtout internal upgrades

T88 Turbo
External waste gate
Uprated Fuel Pump Injectors Fuel rail Fuel regulator,
ECU remap
intercooler.
Boost controller

ur done
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Old 17th September 2003, 01:22 PM   #10 (permalink)
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bbd, re; your list;

T88 Turbo
External waste gate
Uprated Fuel Pump Injectors Fuel rail Fuel regulator,
ECU remap
intercooler.
Boost controller

Surely you've missed off some other 'main' stuff needed? i.e.;

exhaust
twin plate clutch
single 600bhp modified afm or map sensor conversion???
steel gasket set

plus for reliability and oil anti-surge issues you'd also need to fit an oil breather/catcher tank too which brings us back to the same level of mods but the only difference being you've opted for a single turbo conversion instead of a pair of twins.


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Old 17th September 2003, 04:26 PM   #11 (permalink)
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Trevor,, aye but he has an exhuast Oil cooler, and a few extra peices.

I have seen a lot of modded GTR32's and GTR33's that come in with a T88 or T78 Greddy Turbo and its the turbo alone without an I/C or any extra fuel.. juts low boost big Turbo and they are pushing 400+ with a turbo and pipeping alone.


Steel Head gasket is just to lower the chances of detonation on high boost.

I am with you on the clutch.. Stock GTR clutch like a pack of Marlboros when you come to drag racing..

Oil Breathers and catch can ,, not a must,, and like I said there are many routs to choose from to get the 600HP
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Old 17th September 2003, 04:36 PM   #12 (permalink)
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I think whichever way you go, single turbo or twin setup the costs = ££££ big cash...



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