sr20ve datsun 1600

[nick_m]

Clint chimed in on a discussion on the sr board. Here's what he has to say about his old motor

It ended up at 216.3whp measured on the USA SAE method. Power fell off over 7,300rpm & I think the std intake was a big reason for that, especially as it was spaced out by phenolic spacers. I'm pretty sure we had the headers & exhaust sorted enough to take that out of the equation.

I was just about to get a custom intake made up, had sent a std intake to the gent in Australia & had purchased a N1 throttle body 'n all but then I decided it was time to call it quits. The car is now running an Avenir SR20DET and it cost about as much to do as getting the intake made + is quiet & streetable.

I've sold the engine to a guy who is going to put it in a RWD old school Datsun 1600 track car which should go pretty hard.

For the person who asked about cost... if Kelford hadn't sponsored me it would have been about $2,100USD for the headwork not including uprated springs. It was the first VE head they had really had a chance to play with though so it may be a lot less now that they've done all the initial flowing & measuring.

[nzdatman]

what is the USA SAE method? 216hp sounds impressive though. Is the DE head much different to the VE? I know VE ports are bigger, they look almost too big esp for a 1600

[dirtyleppa]

ive been reading about these in a couple magazines and its bloody interesting.

this was on wikipedia

[edit] SR20VE
The 2.0 L SR20VE has Nissan's Neo VVL variable valve timing with lift control. It produces 190 PS (139 kW) @7000 rpm and 144 ft·lbf (196 Nm) @6000 rpm and later (2001-2003) 205 PS (150 kW) @7200 rpm and 206 nm @5200 rpm. Used in:

1997-2000 P11 JDM Nissan Primera Te-V sedan or G-V wagon, 190 PS (139 kW)
2001-2003 P12 JDM Nissan Primera, 20V sedan or W20V Wagon, 205 PS (150 kW)
1997-2000 U14 JDM Nissan Bluebird SSS-Z sedan, 190 PS (139 kW)
1997-2000 Y11 JDM Nissan Wingroad ZV-S wagon, 190 PS (139 kW)
[edit] SR20VET
The 2.0 L (1998 cc) SR20VET was the first turbocharged engine from Nissan with variable timing and lift control. It produces 280 PS (206 kW) @ 6400 rpm and 309 nm @ 3200 rpm.

It is used in the following vehicles:

Nissan X-Trail GT

from what i understand, its basically nissans version of VTEC with variable cams which the ECU alters as the rpm increases. as the revs rise, it changes the lift, duration ec of the cam to increase performance and what not.

hers wikis definition

Nissan Ecology Oriented Variable Valve Lift and Timing (commonly known as VVL) is an automobile variable valve timing technology developed by Nissan. VVL varies the timing, duration, and lift of valves by using hydraulic pressure switch between two different sets of camshaft lobes. It functions similarly to Honda's VTEC system.

The SR20VE is the most common engine with NEO VVL. There have been two main versions of this engine. The first version made 187 hp (139 kW) and 145 lb·ft (197 N·m) torque. This engine was used by Nissan from 1997 to 2001. It is found in the Nissan Primera, Nissan Bluebird, and the Nissan Wingroad.

The second variant of the SR20VE is found only in the 2001 and later P12 Nissan Primera. This version of the SR20VE makes 204 hp (152 kW), and 152 lb/ft torque. This engine is commonly known as the SR20VE '20V'. Although, in automotive terms, '20V' would normally be interpreted as having twenty valves, this is incorrect. The name '20V' is the name of the trim level of the Nissan Primera that it is found in. It is also a shortened version of the name SR20VE. This engine has 16 valves like the rest of the SR20 engines. This newer '20V' engine, is the only SR20 engine to get a restyled valve cover. It also has an upgraded intake manifold, which has longer runners and a larger 70 mm (2.8 in) throttle body (earlier SR20VE has 60 mm).

Another version of the VVL SR engines, is the 1.6 L SR16VE. The engine block for the SR16VE is the same as the SR20VE; it also has the same cylinder bore. The crankshaft has a shorter stroke, which lowers the displacement, but allows the engine to safely rev to higher RPM. Although this engine has 1.6 L of displacement, it has more aggressive camshaft specifications. It manages to make 173 hp (129 kW). The camshafts from this engine are considered to be an upgrade for SR20VE owners.

From 1997 to 1998, Nissan produced 500 limited-edition SR16VE N1 engines. These engines made 197 hp (147 kW). They had further upgraded camshafts, upgraded intake manifold using eight injectors and a larger 70 mm (2.8 in) throttle body. These engines were found in the limited-edition Nissan Pulsar VZ-R N1. They were only sold in Japan.

The most powerful VVL engine so far is the SR20VET. The SR20VET is a turbocharged '20V' SR20VE. It uses a Garrett GT2560R turbocharger, and makes 280 PS (206 kW; 276 hp). Nissan's technical information about this engine states that it is 9:1 compression ratio, but it really adds up to 8.8:1.[citation needed] Compared to the SR20DET (used in the Nissan Silvia, and Bluebird), the SR20VET (aside from having VVL technology) has improved airflow in the cylinder head, higher compression, and also improved coolant passages.

One difference from Honda's VTEC system is that NEO VVL engages the change of intake and exhaust cams independently for a flatter, more consistent power band. On the SR20VE, the intake camshaft is switched at 5000 rpm, and the exhaust at 6500 rpm. However this trait was not included on the newer '20V' version, as both camshafts engage at the same RPM.

[nick_m]

USA SAE is altered for temperature and altitude. I can't remember what is it is exactly but I think SAE standard is 20deg Celcius and sealevel. It will be listed somewhere on the net.

Ve ports are quite a bit bigger than DE ports and yeah your right they are definitely a bit big for a 1600
I believe Kelford has got good results by making the VE ports smaller on the 20ve's because the velocity increase

[dattoboy]

there is a 1200 sedan race car in timaru with a sr20de.i was working with the man getting engineering experience last christmas.he has been a machinist all his life and he told me he had 280HP and the wheels.
he completely machined his whole ITB's from scratch and did his own cams at work.he has developed the motor himself and according to dad "he is a very very bright man"
i have no specs on the engine but that is what he told me.

[nick_m]

I think i'd probably need a cigerette after seeing that motor in action.
It takes alot of money to get a 2L non turbo motor to that level of horsepower regardless of what it is!

[160jsss]

NEVER TRUST A CAR THAT SNEEZES AT YOU

[nzdatman]

shit you have to wonder why that guy isn't in europe building racing engines for a living if that is true. good on him if it is true.

[Brnwgn]

a mate of mine had his rally car up in timaru on a dyno and that 1200 was there it was making gud hp, i cant remember how much he sed, it wasnt that much tho, 180-190 at the tyres rings a bell will check tho.

[Brnwgn]

170 sumthing apparently it was, alot more than my mates sr20 corolla 130 atw