R33 300kw Upgrade Plan Help :)

[SLYDA]

Hey People, Ive owned a R33 for about 3 years and never had a licence in this time, i get it back in around 6 months and im looking to make some decent power. My goal is around 300RWKW however im not an expert and really dont know too much.

Already have

APEXI Power FC

Turbosmart Boost T

Hybrid front mount intercooler

Turbosmart stage 3 dual port BOV

3" stainless Exhaust

Plan to buy:

Turbo HKS GT3037 Pro S (0.68 or 0.87) Internal wastegate?? i realise the 0.68 will come onto boost sooner however on a RB25 im not sure where it will top out? i think the 0.87 will me a safer bet id really appreciate the advice on this.

Nismo 740cc injectors (however looking now at 555cc or equiv nismo size) do i really need a custom fuel rail if these injectors fit?

Splitfire coils (already have coils wrapped in electrical tape)

Walbro 255L/h Intank fuel pump

I have suspension plans - strut braces/breaks (But really looking for advice on how to get to the 300KW figure).

Once the suspension, interior and such is done ill then look at doing engine and head work and possibly at that point manifold, new turbo and external wastegate setup.

Any advice is appreciated!!

[paulr33]

if your going to go for the 0.68 rear i would maybe loko at the GT-RS might have better response with a 0.64 a/r rear - the compressor might be more matched/suited

550cc's nismo's are fine and direct fit for rb25 as long as you get Skyline R33 ones - ie: dont get SR20 550cc's

[SLYDA]

ive pretty much decided on the 3037 Pro S. the 0.87 rear will come onto boost at 3500 or so i believe? would the 740cc injectors be too big?

[SLYDA]

Im just worried that ill be pushing a GTRS to hard (ie 18PSI) + to get to 300RWKW... if rather a 480PS turbo that i could get 300KW at possibly 16 or so..

[Devils_Advocate21]

alot more has to be done like mani's and cams to achieve 300rwkws out of a 3037 plus 20+ psi usually however garrett gt3040 will do you better plus keep in mind if you just buy the turbo custom dump/front coming your way, oh and 0.87 safer bet on tyres n shtuff as well

[johnbarry88]

hey to get 300rwkw you will need to use a 600hp+ IMO rated turbo or higher to flow that amount of air to achieve the goal even so something like a gt3040 will need 21psi+ to get this too. 740cc injectors would the min you would go in size I personally know someone though that is making over 300rwkw with a gtr-s turbo

[R31Nismoid]

The bigger the turbo, doesnt mean you have to run less boost to make the same power (neccesarily).

your still going to be running more than 16psi to make a legit 300rwkw with a 3037, probably 18+

Where a GT-RS would be 20+ to get there based on all the results in the dyno sticky thread (have you read it?)

[adgey]

These threads would be a good read for you

http://www.skylinesaustralia.com/forums/HK...tml&hl=3037

http://www.skylinesaustralia.com/forums/So...tml&hl=3037

http://www.skylinesaustralia.com/forums/Hk...tml&hl=3037

550cc injectors are all that's needed. Heaps of people are running them and are topping the 300 mark.

Someone mentions in one of those posts changing the head gasket to lower the compression which helped him avoid early detonation. Could be wrong on that one?

The other question you might want to ask is how long will it last without internals such as forged pistons and stuff.

My car is in at the moment getting that turbo on and should have it back in the next week or two so I'll let you know what i put down.

[SLYDA]

Ive actually found the following turbo kit!

480HP HKS GT-3037 ProS Turbo kit + Suction + Dump Pipe + fitting kit

Best for Nissan Skyline ECR33 R33 & ER34 R34 RB25det Engine

Item is Brand New. Never Sold in Retail. package included

1 x New HKS GT-3037 Pro S is 56T A/R 0.68

1 x New HKS ProS Dump Pipe

1 x New HKS Suction Intake Pipe

Full Fitting kit & accessories & Gasket & needed piping.

Full kit direct bolt on. What you see in Picture are What you get

It is sold as a full turbo conversion kit.. everything needed... ive seen a million photos... even comes with instructions (in japanese) lol.. its ok though.. ive swapped out turbos before.. shouldnt be to hard i hope!! the turbo on its own you can get for approx $2,822.77AU landed where the whole kit is $3367 LANDED (3 day delivery) theres also a GT2835 full kit which is also $3147.50 landed. Keep in mind.. i am eventually planning on doing engine work etc. im thinking 3037.. but 2835 seems to be a smarter more streetable idea i just really like the idea of being drivin back in the seat when it does come onto boost..

Anyone seen what a 3037 Pro S on a RB25 comes onto boost at with a 0.68 rear? a 0.87 is around 3500rpm. you would have to expect around 3000 or lower wouldnt you?

once again thanks for the advice!

[R338OY]

IMO I'd be planning for more than just turbo + injectors + pump.

I hope you've already got a twin plate clutch and have considered some engine work (top + bottom).

If you make 300rwkw (which i hope you do) the engine/tranny will wear much faster.

You can rebuild it now for the long-term with forgies, cams, valves, v. springs etc. all to match target performance. Or you can rebuild it once its clapped out.

[adgey]

I wouldn't go the 0.68. You'll end up spending more money changing it over to something like a .87 the thing will hit boost and have you wheel spinning.

You will risk blowing your engine without the rebuild as many people have pointed out in numerous posts about this exact turbo and power goals.

I'll list the parts going into my car with this turbo at the moment and if maybe someone can go from there if i miss any

Exedy brass button clutch

550cc HKS injectors

Apexi PFC

HKS type s intercooler

HKS 1.6mm Head gasket

HKS cams 256 intake, 264 exhaust

Splitfire direct injection system

Tomei fuel pump

Blitz i-color boost controller

Custom exhaust manifold

4inch dump to 3 1/4 inch cat back

turbosmart external waste

z32 airflow meter

Probably a few other things to add which i forgot but others might mention.

This will still fall somewhat short of what could be achieved of that turbo. You really need to build that bottom end.

[Smitizen]

hey to get 300rwkw you will need to use a 600hp+ IMO rated turbo or higher to flow that amount of air to achieve the goal even so something like a gt3040 will need 21psi+ to get this too. 740cc injectors would the min you would go in size I personally know someone though that is making over 300rwkw with a gtr-s turbo

Go the GT-RS turbot!!!!

[SLYDA]

i think id prefer the GT2835 Pro S if going down that path.. Mabee the 3037 is 2 excessive... :S.. eggh... its all too hard LOL

[WARLORD]

Go the GT-RS turbot!!!!

hey im no expert but id love to know how someone can get 300kw out of a gtrs as iv tried many times on a dyno even with race fuel 109,the turbo runs out of puff at high rpm and boost drops off but a buckets of torque ,you mite get it with nos ,thats my next step. go a hks 3037 kit with all the bits needed if you really hell bent for 300kw,a gtrs is a great street turbo it depends what you really must have.

my mods on 22 psi

Nismo thermostate

Nismo high flow fuel pump

Nismo engine mounts

Nismo gear box mounts

Nismo 550cc injectors

Nismo flywheel

Excedy custom clutch

Eagle conrods

ARP head studs

Arias pistons & rings

Acl engine bearings

Custom Radiator 40mm

splitfires coil packs

Sard sports magnetic oil filters

Sard annodised aluminium cooling oil block

Sard fuel regulator adaptor

Sard fuel regulator

Nissan N1 oil pump

Nissan water pump

Apex power FC

Greddy remote switching system

Greddy boost controller

Greddy oil catch can

Greddy blow off valve

Greddy intake plenum

Fujitsubo exhaust

Catco stainless high flow cat converter

3" dump pipe

Front mount intercooler

Custom turbo intake pipe

Custom air box

Radiator air guide

custom radiator

HKS valve springs

HKS cam shafts 256-intake

HKS cam shafts 264-exhaust

HKS turbo kit GTRS

HKS wiring harness for Z32 AFM

Bosch Z32 air flow m

Gates timing belt

Billion super solid coolant line

+++++++++++++++++++

Edited January 17, 2008 by WARLORD

[SLYDA]

now youu need a bigger turbo! how much did it cost to build the motor?

[WARLORD]

well hows this sound three guesses and then ill tell.just so i can see what one would pay to what i paid

this was done in july 2007

http://www.skylinesaustralia.com/forums/Mo...tml&hl=gtrs

Edited January 17, 2008 by WARLORD

[adgey]

definitely enough to make baby jesus cry

[WARLORD]

definitely enough to make baby jesus cry

hahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha no sh**