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Race R35 Build

druzilla32

By druzilla32,
in R35 GTR

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Martin HKS Enthusiast

Martin HKS

Posted
Posted (edited)

Hello bigmikespec - You might want to ask GT Auto about the head work as they are available from them. Maybe send a PM as they might not want to post that information. I know they have full CNC packages for RB26 SR20 4G63 2JZ etc etc.

Cheers

Marty

Edited by Martin HKS
bigmikespec Veteran

bigmikespec

Posted
Posted

HEADS ALMOST FINISHED!!!

post-24739-0-60098700-1308108788_thumb.jpg

The shape of that chamber is interesting; have the chambers been welded and reshaped? There is one feature in that chamber that gives a hint.

Looks very different to this: http://www.nagtroc.org/forums/index.php?showtopic=41869

Martin HKS Enthusiast

Martin HKS

Posted
Posted

No there is no welding of the chamber and it's no larger than stock (well they have been CC'd and matched in volume so close enough to stock size). Because this job has to be out the door so quick for GT Auto's project we are not going to town on them. We have some more coming to be cut up and developed like the rest of the head's available that we do.

To all those out there these heads are pretty good in stock form from Nissan. It's not like the 2JZ head where we weld up the exhaust runners and make our own for better flow or the Ford BA/BF/FG Turbo 6cyl where the chamber needs to be changed with much larger seats and valves to make a decent product.

Anyway back to the project. We found out some interesting news today about the factory computer system and how it slips the clutch if you make too much torque/boost etc as a failsafe. No good for our project so we have been working with HKS Japan and have a solution using the F-Con V-Pro. I'm not sure how the other cars go with this problem and the Cobb Tuning but we have it sorted.

You can see HKS TV for some cool updates: http://www.hks-tv.com/watch/?watch=158&tabsnm=2

Cheers

Marty

bigmikespec Veteran

bigmikespec

Posted
Posted

No there is no welding of the chamber and it's no larger than stock (well they have been CC'd and matched in volume so close enough to stock size). Because this job has to be out the door so quick for GT Auto's project we are not going to town on them. We have some more coming to be cut up and developed like the rest of the head's available that we do.

So who is doing the head work then? You or GT Auto?

elrodeo666 Mentor

elrodeo666

Posted
Posted

No there is no welding of the chamber and it's no larger than stock (well they have been CC'd and matched in volume so close enough to stock size). Because this job has to be out the door so quick for GT Auto's project we are not going to town on them. We have some more coming to be cut up and developed like the rest of the head's available that we do.

To all those out there these heads are pretty good in stock form from Nissan. It's not like the 2JZ head where we weld up the exhaust runners and make our own for better flow or the Ford BA/BF/FG Turbo 6cyl where the chamber needs to be changed with much larger seats and valves to make a decent product.

Anyway back to the project. We found out some interesting news today about the factory computer system and how it slips the clutch if you make too much torque/boost etc as a failsafe. No good for our project so we have been working with HKS Japan and have a solution using the F-Con V-Pro. I'm not sure how the other cars go with this problem and the Cobb Tuning but we have it sorted.

You can see HKS TV for some cool updates: http://www.hks-tv.co...ch=158&tabsnm=2

Cheers

Marty

I was out at dinner last week with one mate of mine who is one of HKS's chief mechanics and he was saying that on test tuning on the dyno on the Black 35 they ramped the boost up and were able to get 1000ps out of the Black 35 but were getting major slip out of the tranny/clutch and thus have kept power at 900ps but have been working on sorting this since HKS Premium day.

Seeing your car is a full race spec build it will be interesting to see the difference on how it handles on the circuit compared to the Black HKS 35 as that was supposed to be a bloody handfull to drive.

«Cyph3r» Experienced

«Cyph3r»

Posted
Posted (edited)

Looks like the ID 2000's are becoming the injector of choice for E85 big power cars.

Just read the Speed Hunters article followed by the comments, it's no wonder americans get stereotyped as "Stupid & Ignorant"

Edited by «Cyph3r»
  • 3 weeks later...

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