sick620 Posted February 10, 2010 Report Share Posted February 10, 2010 I just scored a engine for $70 bucks with a 5 speed tranny engine looks in good shape and looks like its off a fresh rebuild. It says sr20 on the side. What did these come out of? I know lots of people have swapped them into 510's and 620's so someone has got to have some info. How much horse power do they have? What mods are needed to install in a 620? thank you Gage Quote Link to comment
NorCalDime Posted February 10, 2010 Report Share Posted February 10, 2010 SR20DE and SR20De The Nissan SR20DE engine is used in over 15 Nissan models. It first appeared in October 1989 and has been gradually phased out since the introduction of the QR (low-emissions) engine family. The SR20DE carried nominal power ratings between 140 to 145 Horsepower (104 to 108 Kw) from the factory. The design was very responsive to aftermarket improvements and became a favorite among compact sports car enthusiasts during its operational life especially as it revved very high. (redline @ 7500rpm) The breakdown of the engine code is as follows: * SR - Engine Code * 20 - 2.0 Litres * D - Dual Overhead Cam * E - Electronic Fuel Injection * e - SR20DE LEV-version * RR - Roller rocker motor This engine has the following specs according to a SAE paper released in 1991 The Specs Type: Water cooled, 4 cycle in-line 4 cylinder Combustion Chamber: Cross flow, pentroof type Valve mechanism: DOHC, 4 valves per cylinder, chain drive Displacement: 1998cc Bore x Stroke: 86.0 x 86.0mm Bore Pitch: 97.0mm Block Height: 211.3mm Compression ratio: 9.5:1 Crankshaft journal diameter: 55.0mm Crankpin diameter: 48.0mm Con rod length: 136.3mm Valve diameters: Intake: 34.0mm, Exhaust: 30.0mm Dimensions: 685 x 610 x 615mm Maximum power: 140hp at 6400 rpm ( SAE net) Maximum torque: 132 ft-lb at 4800 rpm ( SAE net) It was used in the following vehicles: Model Years Produced 180SX 1991-1992, 1994-1997 200SX SE-R 1995-1998 Almera 1996-1999 Avenir 1990, 1992-1995, 1997-2001 Bluebird 1989, 1991-1993, 1995-1998 Liberty 1998-2000 Infiniti G20 1991-2002 NX2000 1991-1993 Prairie Joy 1995-1997 Presea 1990-1993, 1995, 1997-1998 Primera 1990-2002 Pulsar 1991-2000 R'nessa 1997-1998, 2000 Rasheen 1998 Sentra 1991-1994, 1998-2001 Serena 1991-1995, 1997-2000 Silvia 1991-1993 1995-1996, 1998-2002 Wingroad 1996-1999 Quote Link to comment
sick620 Posted February 10, 2010 Author Report Share Posted February 10, 2010 Is there anyway to tell specifically what year mine was made and what it came out of? Quote Link to comment
INDY510 Posted February 10, 2010 Report Share Posted February 10, 2010 The shape of the valve cover looks like it is a S14 SR20 It also could be a S15 SR20,,, but in that condition it is probably a S14 Looks like a non-turbo..... deinately not a FWD motor..... so a good score Gage!!! nice JDM RWD SR20DE Quote Link to comment
NorCalDime Posted February 10, 2010 Report Share Posted February 10, 2010 look at the numbers on the block to find out waht it is Quote Link to comment
sick620 Posted February 10, 2010 Author Report Share Posted February 10, 2010 :huh: Quote Link to comment
72240z Posted February 10, 2010 Report Share Posted February 10, 2010 The shape of the valve cover looks like it is a S14 SR20 It also could be a S15 SR20,,, but in that condition it is probably a S14 Looks like a non-turbo..... deinately not a FWD motor..... so a good score Gage!!! nice JDM RWD SR20DE . Quote Link to comment
sick620 Posted February 10, 2010 Author Report Share Posted February 10, 2010 http://en.wikipedia.org/wiki/Nissan_SR20DET the srd20DE wasnt but the srd20DET was Quote Link to comment
72240z Posted February 10, 2010 Report Share Posted February 10, 2010 I think it's a waste to put it in a 620 with that weak tq and a somewhat high rpm. It's jut not a truck motor at all. They are hot in 510's and roadsters though. Quote Link to comment
72240z Posted February 10, 2010 Report Share Posted February 10, 2010 http://en.wikipedia.org/wiki/Nissan_SR20DET the srd20DE wasnt but the srd20DET was No the de was as well, was a brain fart on my part. Quote Link to comment
sick620 Posted February 10, 2010 Author Report Share Posted February 10, 2010 I think it's a waste to put it in a 620 with that weak tq and a somewhat high rpm. It's jut not a truck motor at all. They are hot in 510's and roadsters though. Its better than a 300,000 mile L20B Quote Link to comment
sick620 Posted February 10, 2010 Author Report Share Posted February 10, 2010 Do I have to do a bell housing swap on the tranny.... or can I just custom mount this tranny?.... Will this oil pan work? or do i need to get one off another vehicle? Quote Link to comment
72240z Posted February 10, 2010 Report Share Posted February 10, 2010 For what it stakes to drop in, the fab and time. I would just rebuild or drop in another l20b. It's a great score don't get me wrong, but 130tq @ 4800 rpm doesn't warrant the effort imho. Quote Link to comment
sssr20det510 Posted February 10, 2010 Report Share Posted February 10, 2010 it will take alot of work and money to put that in there you will still need a harness, comp, maf sensor, igniter, coil packs. you could always get the s14 sr20det stuff and use that longblock, you just would need to keep the boost psi down. there are people who have done it before. If you start looking you can find alot of the stuff you would need used on northwest nissans or zilvia Quote Link to comment
72240z Posted February 10, 2010 Report Share Posted February 10, 2010 I personally, would just clean it up/sell it and pick up a 100% complete ka swap, that at least has the power to warrant the fab work needed. Quote Link to comment
datzenmike Posted February 11, 2010 Report Share Posted February 11, 2010 Technically you could swap the front case half off that tranny and mount it onto your '79. But that would be a step backwards as the 'B' is weaker and older. The SR tranny is a 'C' type and several inches longer so shorten the drive shaft. Forget finding the EFI stuff and wiring it all up. Make a manifold and run a big carb. I don't think it will run much better than a good L20B until revved way up. I wouldn't even bother unless I had seen this motor running in something. Someone has already stripped the wiring off. That's a lot of bother to find out it's a smoker or knocker. Gotta ask, what was it doing there? $70 for a 5 speed is sweet. The SR is an unknown quantity. Did you try to turn it over? Pull the oil filter and see what pours out with the oil. Sorry to sound neg. you got way more than your money's worth. :D Quote Link to comment
sick620 Posted February 11, 2010 Author Report Share Posted February 11, 2010 The oil looks really clean and the clutch and fan and stuff are nice and solid. I cant tell you where I got it because the place is kinda a locals only secret :D but I can get rims there for $5 a piece and engines for $50 a pop. Plus I can buy stuff on credit. :) I can get webbers sometimes for $15 a pop if im lucky. I might trade it straight across for a KA with all the ecu and wiring stuff. I really think this engine is a runner but i wont know untill I do a more detailed inspection of its insides. Quote Link to comment
sick620 Posted February 11, 2010 Author Report Share Posted February 11, 2010 Ok well I figured it out. My engine is the SR20DE. Its from the s15 model!!!. it is a 165HP motor. The s15 came with a turbo varient that was a 250HP motor. I am going to go through the engine tomorrow morning. If the engine is in good shape Im keeping and building it. Wish me luck! ill post pictures of any problems I see. Quote Link to comment
72240z Posted February 11, 2010 Report Share Posted February 11, 2010 Ya 165hp 160 tq, not bad. For 70 bucks it didn't matter what it was out of lol, was a great deal. You NEED to track down all the efi though. To run it carbed you'd be lucky to make 130hp/tq, the NVCS makes that motor what it is. I still think ka is better because it has a better tq curve and parts are easier to find/cheaper but I could see wanting to do it because power is close, the price was more then right and its just not done, rare is cool if you don't have to sacrifice much to get it. It takes a little more fab but it would be cool to see at that power level. Anything less would be a whats the point scenario lol. Good luck and congrats on finding that steal, looking forward to updates. Quote Link to comment
sick620 Posted February 11, 2010 Author Report Share Posted February 11, 2010 Thanks for the kind words. Parts may be harder than a KA to get but there are still alot of good SR20 resources around. I will keep ya posted on the motor and take lots of pictures. Quote Link to comment
sssr20det510 Posted February 11, 2010 Report Share Posted February 11, 2010 Ok well I figured it out. My engine is the SR20DE. Its from the s15 model!!!. it is a 165HP motor. The s15 came with a turbo varient that was a 250HP motor. I am going to go through the engine tomorrow morning. If the engine is in good shape Im keeping and building it. Wish me luck! ill post pictures of any problems I see. if it is a s15 it should be a 6 speed tranny :) Quote Link to comment
72240z Posted February 11, 2010 Report Share Posted February 11, 2010 s15 came 5 and 6 speed. Quote Link to comment
sick620 Posted February 11, 2010 Author Report Share Posted February 11, 2010 s15 came 5 and 6 speed. its for sure a 5 speed Quote Link to comment
sssr20det510 Posted February 11, 2010 Report Share Posted February 11, 2010 well the 5 speeds are stronger anyways, but 6 speed would be cool Quote Link to comment
72240z Posted February 11, 2010 Report Share Posted February 11, 2010 Ya 6 would def be cool but Idk if 160hp would be able to push a .767 6th. You'd need a crazy high rear. I'm pretty sure thats why they left such a high 6th too, 250hp isn't going to push a low 6th either. That gm t56 6th ratio is more my liking at .5. Quote Link to comment
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