What else to uprate - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

G40tee · 19th June 2008, 05:47 PM

Right the engine for my new car is being built as i speak, i just want to know if there is anything else i should uprate.

I am not going to cam it yet as i cant afford it so nothing like that yet.

I just want to know whether to uprate any bolts etc at my spec.

Spec:
honed standard block
forged pistons
standard rods
rebuilt bottom end
standard bearings etc (if i had had my choice i would have preferred ACL bearings or something similar)
standard crank
tomei metal headgasket 1.2mm
tomei metal gasket kits everywhere else
HKS GT-SS turbos
N1 oil pump
standard head and inlet
Thats all i can remember

Bosch 044 fuel pump, sard 700cc injectors, d jetro fc on their way.
will be tuned on standard ecu for the meantime whilst being run in then going to perfect touch for mapping.

I was thinking about uprating headbolts etc to ARP ones for peace of mind.

What do you think i should do?

Cheers

Chris

pupsi · 19th June 2008, 07:27 PM

I'de go for the Jun oil pump. Deffo go for the ARP headbolts if you're going for more power.

Listerofsmeg · 19th June 2008, 07:36 PM

why? at that level of tune standard is more than adequate.

G40tee · 19th June 2008, 07:51 PM

id have gone for teh jun if i could but a cant afford it since i have now bought forged pistons etc!
i know it is cheaper than a rebuild but ill keep my eye on the oil pressure and if i want to push for more power ill change it then.
my plan is to run it at around 500hp at the fly which i think should be achievable, i know i have no cams but we will see what happens!

hodgie · 19th June 2008, 08:20 PM

Baffled or extended sump.
Do this now because if you need it later you`ll have to take the engine out.
Under hard excelleration you could cause oil starvation as the oil will be going to the back of the engine.

pupsi · 19th June 2008, 11:39 PM

Quote:

Originally Posted by Listerofsmeg

why? at that level of tune standard is more than adequate.

I did say if you go for more power?

Floyd · 20th June 2008, 05:20 AM

As hodgie say's definately a Tomei sump baffle, and I would also go for an oil cooler with remote filter. Keeping a good oil temp will take a lot of strain off your cooling system, and you should be able to use the standard pump/radiator etc with worrying when you up the power!

Listerofsmeg · 20th June 2008, 05:49 AM

Quote:

Originally Posted by pupsi

I did say if you go for more power?

good point, although i still have standard with a fair bit more power than that still. Was advised they werent necessary (as i had already budgeted for them personally)

Madden · 20th June 2008, 09:30 AM

Heads studs are for seriuos power. Good spec list mate but i would be the sump baffle. No one likes the N1 oil pump for some reason but I'm still on a stock one that has had bearing go through it.

Never had a problem with oil pressure.

G40tee · 20th June 2008, 10:05 AM

sorry forgot to say i have an oil cooler and relocation kit.

sump baffle. . . good idea i didnt think of that!!
I have spoken to a few people in the know, head bolts i dont need, rod bolts may be a good addition if i want to be able to rev the car and for peace of mind.

It seems headbolts are ok with someone very reputable running consistent 750bhp etc with the standard ones and having no issues and it seems that this follows most other peoples ideas too!

Cheers

Chris

G40tee · 20th June 2008, 10:32 AM

baffle on its way to me now!
im going to go with the tomei rod bolts too i think.
its getting there, i need to stop buying things so i can actually get it running! haha

Madden · 20th June 2008, 11:06 AM

Yea rods bolts are a deffo mate. I have some arp ones and they are sweet.

GT-R Glenn · 21st June 2008, 01:27 AM

Valve Springs

SamuraiSam · 21st June 2008, 08:45 AM

Jun breaks

go Tomei

TP_ · 26th June 2008, 04:19 AM

Yeah, go Tomei. Search for cracked Jun in this forum.

19th June 2008, 05:47 PM	#1 (permalink)
G40tee GTROC Member Join Date: Feb 2008 Location: Bucks Posts: 856	What else to uprate Right the engine for my new car is being built as i speak, i just want to know if there is anything else i should uprate. I am not going to cam it yet as i cant afford it so nothing like that yet. I just want to know whether to uprate any bolts etc at my spec. Spec: honed standard block forged pistons standard rods rebuilt bottom end standard bearings etc (if i had had my choice i would have preferred ACL bearings or something similar) standard crank tomei metal headgasket 1.2mm tomei metal gasket kits everywhere else HKS GT-SS turbos N1 oil pump standard head and inlet Thats all i can remember Bosch 044 fuel pump, sard 700cc injectors, d jetro fc on their way. will be tuned on standard ecu for the meantime whilst being run in then going to perfect touch for mapping. I was thinking about uprating headbolts etc to ARP ones for peace of mind. What do you think i should do? Cheers Chris __________________ Back to the good old days! :-p Christmas present for me maybe??

19th June 2008, 07:36 PM	#3 (permalink)
Listerofsmeg GTROC Member Join Date: Jul 2006 Location: Shefford, Beds Posts: 1,719	why? at that level of tune standard is more than adequate. __________________ White R33 GTR Its working!! 10.908 @ 128mph on pump fuel and full trim!

19th June 2008, 07:51 PM	#4 (permalink)
G40tee GTROC Member Join Date: Feb 2008 Location: Bucks Posts: 856	id have gone for teh jun if i could but a cant afford it since i have now bought forged pistons etc! i know it is cheaper than a rebuild but ill keep my eye on the oil pressure and if i want to push for more power ill change it then. my plan is to run it at around 500hp at the fly which i think should be achievable, i know i have no cams but we will see what happens! __________________ Back to the good old days! :-p Christmas present for me maybe??

19th June 2008, 08:20 PM	#5 (permalink)
hodgie MODERATOR Join Date: Oct 2003 Location: Sat in my Car Posts: 4,765	Baffled or extended sump. Do this now because if you need it later you`ll have to take the engine out. Under hard excelleration you could cause oil starvation as the oil will be going to the back of the engine. __________________ 720 spinner at Spa, GTROC Southern Trackday Organiser, GTROC SW Rep. Hodgies Skyline GTR Site --

20th June 2008, 10:05 AM	#10 (permalink)
G40tee GTROC Member Join Date: Feb 2008 Location: Bucks Posts: 856	sorry forgot to say i have an oil cooler and relocation kit. sump baffle. . . good idea i didnt think of that!! I have spoken to a few people in the know, head bolts i dont need, rod bolts may be a good addition if i want to be able to rev the car and for peace of mind. It seems headbolts are ok with someone very reputable running consistent 750bhp etc with the standard ones and having no issues and it seems that this follows most other peoples ideas too! Cheers Chris __________________ Back to the good old days! :-p Christmas present for me maybe??

19th June 2008, 07:27 PM	#2 (permalink)
pupsi GTROC Member Join Date: Aug 2006 Location: West London Posts: 1,944	I'de go for the Jun oil pump. Deffo go for the ARP headbolts if you're going for more power.

20th June 2008, 05:20 AM	#7 (permalink)
Floyd GTR Register Member Join Date: Dec 2004 Location: S-wales Posts: 314	As hodgie say's definately a Tomei sump baffle, and I would also go for an oil cooler with remote filter. Keeping a good oil temp will take a lot of strain off your cooling system, and you should be able to use the standard pump/radiator etc with worrying when you up the power!

20th June 2008, 09:30 AM	#9 (permalink)
Madden New Users Join Date: Nov 2004 Location: Berkshire Posts: 2,078	Heads studs are for seriuos power. Good spec list mate but i would be the sump baffle. No one likes the N1 oil pump for some reason but I'm still on a stock one that has had bearing go through it. Never had a problem with oil pressure.

20th June 2008, 10:32 AM	#11 (permalink)
G40tee GTROC Member Join Date: Feb 2008 Location: Bucks Posts: 856	baffle on its way to me now! im going to go with the tomei rod bolts too i think. its getting there, i need to stop buying things so i can actually get it running! haha __________________ Back to the good old days! :-p Christmas present for me maybe??

20th June 2008, 11:06 AM	#12 (permalink)
Madden New Users Join Date: Nov 2004 Location: Berkshire Posts: 2,078	Yea rods bolts are a deffo mate. I have some arp ones and they are sweet.

21st June 2008, 01:27 AM	#13 (permalink)
GT-R Glenn GTR Register Member Join Date: Nov 2002 Location: Waiuku NZ Posts: 1,222	Valve Springs

21st June 2008, 08:45 AM	#14 (permalink)
SamuraiSam GTR Register Member Join Date: Oct 2007 Posts: 390	Jun breaks go Tomei

26th June 2008, 04:19 AM	#15 (permalink)
TP_ GTR Register Member Join Date: Jan 2008 Location: Sweden Posts: 41	Yeah, go Tomei. Search for cracked Jun in this forum.

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