![]() |
Compression, compression, compression All factory turbo motors like the RB and SR series run low compression at around 8:1 which is ideal for forced induction. The VQ like in our
|
|
LinkBack | Thread Tools | Display Modes |
![]() |
#8 (permalink) |
Track Member
Join Date: Dec 2008
Location: Melbourne
Posts: 586
Drives: 370z Titanium 6MT
Rep Power: 18 ![]() |
![]()
Compression, compression, compression
All factory turbo motors like the RB and SR series run low compression at around 8:1 which is ideal for forced induction. The VQ like in our 370'z is a non turbo motor, so it makes power by running really high compression at 11:1 and clever variable valve lift and duration. This is not ideal for forced induction, as the high compression doesn't leave much room for increased boost and becomes difficult to tune and avoid pre-detonation. Heat is the enemy of compression. A full teardown and rebuild is the only real option to drop the compression which is costly... It's also a LOT easier to fit large turbos to a straight motor rather than a V motor from an engine bay space perspctive. No one really does this as the RB26 is a stronger motor out of the factory...and the fact GTR's run intelligent 4WD makes them one the best value for money street drag cars ever. My old R32 GTR ran in the 11's on street tyres and stock turbos with just minor upgrades. The 2JZGTE from the Supra is also a ball tearer of a motor for big boost. my 2c worth
__________________
My Zed Last edited by GTRFAN; 07-19-2010 at 12:41 AM. |
![]() |
![]() |
Bookmarks |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Nissan 370Z - One of 10 Best Looking Cars for 2009 | FERRARI | Nissan 370Z General Discussions | 21 | 10-11-2010 10:09 PM |
My Silva Z! | Endgame | Nissan 370Z Photos / Spyshots / Video / Media Gallery | 18 | 05-15-2010 07:37 AM |
Feds Begin to Seize Illegal Nissan Skyline GT-Rs in California | nogoodname | The Lounge (Off Topic) | 21 | 10-04-2009 02:46 PM |
Za Silva Boolit | 6MT | Nissan 370Z Photos / Spyshots / Video / Media Gallery | 4 | 07-25-2009 03:05 PM |
2009 Nissan Skyline Crossover for Japan | BanningZ | Other Vehicles | 4 | 04-16-2009 08:12 PM |