17 replies to this topic

[RUSSELLV]

G'day, i just bought a vl and want a turbo or engine replacement. I here a nissan r33 turbo will work pretty good any surgestions. Rusell V

[MorganV8]

rb25et 5 speed halfcut

Edited by MorganV8, 22 September 2008 - 08:50 PM.

[Sivart]

Aspo 355

[freddo]

id go with the N/A 308/355 if you plan on using a vl commodore.

[BKC34]

yeh go the rb25det with gearbox if ya can, they rip hard! get a "neo" one if ya can as they are a bit more power and better fuel economy

[creatd vl turbo]

rb25det or a rb26dett half cut for sure!!!!!!!!!!!!!!!!!!

[Falconxf88]

depends how deep your pockets are.

[cal-a-kid]

considering he spells commodore with an "a" i'd imagine not very deep...

Dean

[Falconxf88]

ide see what snortperformance.com have got in the way of things for a vl but the sites not up at the moment so check it out later.

Edited by Falconxf88, 25 September 2008 - 07:51 PM.

[creatd vl turbo]

u would go a force flow set up lol

http://www.force-flow.com/racing002.aspx

[Falconxf88]

here you go
http://www.snortperformance.com/holden_com..._turbo_kits.htm

[Brett_A]

Why waste ur money on a RB25 when you can go an RB30 for much cheaper?

[mazrot]

or you could have the best of both worlds and have the rb30 block and then put the better head on

[2530]

SINGLE CAM RB 30 TURBO!!!
Cheap easy and KICK ASS!!!

[30psi]

If you really need to ask this question than you havn't done your reserch on the VL, and for those suggesting rb20/25/26 conversion you guys have no idea neither. There is so much performance options available for the SOHC RB30 you do not need to lose cubic inches by going to skyline puss... Some of the quickest VL's in the country run SOHC RB30

9.5 @ 149.66 - 5 speed manual


8.51 @ 158 - Retains standard inlet manifold



8.752 @ 157.03

Edited by 30psi, 04 October 2008 - 08:46 AM.

[2530]

SINGLE CAM RB30 TURBO MOTORS ARE DEFINITELY THE BEST BANG FOR BUCKS MOTOR!!!

EASY
CHEAP
FAST
SIMPLE

There is no massive gain in going twin cam.

[cal-a-kid]

are you regretting going dohc Riley?

Dean

[aquabat]

Why would he regret going DOHC?

If you've got a DOHC RB30 and SOHC RB30 side by side both with identical turbo, tuned by the same competent person, etc..

1) The DOHC is going to make more torque all the way through the rev range including peak
2) The DOHC is going to bring the turbo onto boost quicker
3) The DOHC is going to make higher peak power on less boost, but more importantly it's going to make more power all the way through the rev range
4) The DOHC can rev just that little bit higher
5) The DOHC is going to have alot better streetability with bigger cams, not almost dying at idle and sacraficing fuel economy, which for those who don't read ZOOM magazine, Assad the owner of WHONXT said is non existant
6) For those that are running big turbo's and they aren't coming on full boost til after 5000rpm, it doesn't matter when you are revving through to 9000rpm

An RB26 setup on an RB30 bottom end with a set of reground cams ($350) and valvesprings ($300) with the stock RB26 6TB setup is only going to cost (if not less) what it's going to cost to go solid cam setup with a heavily worked SOHC head ($3000, as a matter a fact the SOHC JPC head costs around the $5000 mark) with a fancy inlet manifold ($1000) and fuel rail, etc and it's going to be better in pretty much stock form anyway.

According to 6BOOST an RB25 is actually cheaper then a RB30 to rebuild and to get power out of as the head flows more efficiently.

Jason.