492rwhp @20psi RB25 compression test

[r33_gtst]

I had a compression test done on my rb25 today and I'm pretty impressed. I've been runnin the car at 20psi for over two years now making really high numbers for an oem rb25. I was worried they might be low and the engine slowly going but the numbers proved me wrong. I owe it to quality work and tuning I guess. Car had 192,000km on it, engine may have been swapped out at 90,000 based on a metal plate engraving on the cam gear cover but that could have been the last time the timing belt was done. None the less the numbers make me happy and the car still pulls like it first did the day I drove it out of the shop.*

Cyl # 1 = 165 PSI
Cyl # 2 = 165
Cyl # 3 = 165
Cyl # 4 = 170
Cyl # 5 = 165
Cyl # 6 = 170

[supersayianjim]

sweet!!thats nissan quality for ya!!! got pics of this hx40 setup??

[MattiasJacobs]

tuner?

[r33_gtst]

tony at dyna motorsports

[nick-nismo]

Nice numbers! I plan to take my rb25 up to 22psi in the spring, hoping for similar power!

[DynamiteQC]

what does a hx40 compare to a garret/precision?

[Murchie]

sweet!!thats nissan quality for ya!!! got pics of this hx40 setup??

What he said..

[nick-nismo]

Isn't the hx40 in the gt38 or gt40 range? And lets see some pics !

[ToroGTS]

which injectors, ecu ect.?

[garetth]

That's pretty impressive, when are you hitting full boost?

[Salar]

that's dope. stock motor as in no metal headgasket or studs?

[Skym]

Depends on how you drive car. If thrash car on racetrack, drift, etc it won't last long (3000-3500km is routine rebuild km for race engines).

But if street drive car a engine can last 100,000km.

[r33_gtst]

rc 750 cc injectors with repinned rb26 d jetro power fc
Full boost is around 4400 rpm, could be better with equal sizing and length ic piping
Stock head gasket, studs
Daily driver 8 months of the year

No pics right now, but I got video
Mods are listed in the info


Dyno

http://www.youtube.com/watch?v=B0Y6uH4Qb8w&feature=youtube_gdata_player

Fun

http://www.youtube.com/watch?v=y_ImDsveHpE&feature=youtube_gdata_player

[nick-nismo]

Wow that spool seems pretty good what size exhaust housing are you using. 12cm?
And just a question it looks like your car is set up pretty good why use a 300dollar turbo.

[mightyrocker]

What intake manifold is that?