binsayer Posted January 27, 2005 Share Posted January 27, 2005 guys have you ever seen this engine it came on the skyline in the 70's anyways i am doing a research on skyline and want to replace this engine whats a good replacment should i put in an RB engine or a l28 engine whta do you think would be less trouble and which one has similar engine mount Quote Link to comment Share on other sites More sharing options...
Dnaught14 Posted January 27, 2005 Share Posted January 27, 2005 Hey do a search, I've never heard of that engine, but i dont know much about skyline history. What kind of car do you have, if you have a gen1 z then it boils down to a couple of factors in my eyes. If you are going for a setup that doesnt require much besides bolt on parts that will put you in the 300-325 hp a rebuilt l28et swapped in with t3/t4, IC, tb, BOV, exaust/downpipe, fuel managment and standalone ECU will do fine, and parts will cost you under 6 grand. If you want more out of it youd need to start getting forged internals for safty, i know some guys are putting down near 400 on stock internals but you gotta have an amazing tune and even then it may be unstable for a long period of time. The RB series will allow you to have huge power potential, equally the sr20det, however the sr lacks torque. But both engine platforms can be built upwards 500 hp before things need modification internally. The thing with the rb is that it costs 5 grand to get a half cut, then you have to modify the oil sump, and get custom motor mounts. If you are a good welder, and have the money, do the RB. You will be part of a select few and will have a 400 hp z in no time once you get the engine in the car. Above all, do searches on this site, and read up on what others have done, you will find many frineds on this sit that can guide you in the right direction. Good Luck Quote Link to comment Share on other sites More sharing options...
HS30-H Posted January 28, 2005 Share Posted January 28, 2005 ........i am doing a research on skyline and want to replace this engine....... Can you clarify your situation a little more? To me - from what you have written - it sounds as though you have a Skyline that was originally fitted with an S20 ( and would therefore be either a PGC10, KPGC10 or KPGC110 ) and you are looking to put another engine in its place. Surely this can't be the case? Two things: First, if you do actually have a 'P' coded C10 or C110 Skyline, then why on earth would you want to lose potential value on it by fitting something other than an S20 engine? Surely a GT would suffice for such a swap? Secondly, if you don't have a 'P' coded Skyline, then what has the S20 engine got to do with anything? Maybe rephrase the question? Quote Link to comment Share on other sites More sharing options...
mjfawke Posted January 28, 2005 Share Posted January 28, 2005 Can you clarify your situation a little more? To me - from what you have written - it sounds as though you have a Skyline that was originally fitted with an S20 ( and would therefore be either a PGC10' date=' KPGC10 or KPGC110 ) and you are looking to put another engine in its place. Surely this can't be the case? Two things: First, if you [i']do[/i] actually have a 'P' coded C10 or C110 Skyline, then why on earth would you want to lose potential value on it by fitting something other than an S20 engine? Surely a GT would suffice for such a swap? Secondly, if you don't have a 'P' coded Skyline, then what has the S20 engine got to do with anything? Maybe rephrase the question? The S20 was also fitted to the PS30, otherwise known as the Z432. It's a 2lt sports racing engine, rare as hens teeth and worth an absolute fortune. The closest replacement in the 6 cyl class would be the RB20DE engine... Quote Link to comment Share on other sites More sharing options...
binsayer Posted January 28, 2005 Author Share Posted January 28, 2005 well its a 1970 skyline and it has the 2.0 straight 6 with a 5 speed on it i want to keep the original look of the car i just want to make it faster so my question is what is easier to do put in an RB engine or an l28 turbo engine on it Quote Link to comment Share on other sites More sharing options...
olie05 Posted January 28, 2005 Share Posted January 28, 2005 if it has a sohc L engine in there already, then yes it will be easier to swap in an l28et engine, since it bolts in. If your current engine is DOHC, then you would have to swap out the crossmember for one that will hold up an L series engine if you want to swap over. RB series engine will require much more modifying. -Oliver PS: if its dohc, i would suggest keeping the engine... or dumping it on my front yard... just a heads up! Quote Link to comment Share on other sites More sharing options...
HS30-H Posted January 28, 2005 Share Posted January 28, 2005 well its a 1970 skyline and it has the 2.0 straight 6 with a 5 speed on it i want to keep the original look of the car i just want to make it faster so my question is what is easier to do put in an RB engine or an l28 turbo engine on it You're still not saying what you actually have. Your description of a "1970 Skyline" could cover both L20 ( GT and GT-X ) and S20 engined ( GT-R ) models, and both the 4 door and 2 door version of the GT-R. What is the VIN prefix? If its either PGC10 or KPGC10 then surely you would be better off selling it to fund the purchase of a non-'P' coded body as a project base? A genuine GT-R ( even without engine.... ) would probably sell for enough money to cover the purchase of an excellent GT or GT-X and an RB20 or RB25 to drop into it. As olie05 has pointed out, an L28et engine will be a bolt-in replacement for an L20 - but not an S20. And as mjfawke suggests, perhaps the closest like-for-like replacement for an S20 would be an RB20 ( how about a carbed n/a setup? ). But I'm still intrigued to hear what it is you have actually got, and where you are located........ ( ? ). Quote Link to comment Share on other sites More sharing options...
binsayer Posted January 28, 2005 Author Share Posted January 28, 2005 to make it clear its a 1970 skyline GT i am not sure if the engine is an L20 or S20 but i thought they only came in an S20 i still havnt seen the car its parked back home waiting for me to finish school and go back i made a deal with my brother to buy me one if i buy him a 240z from the states which i did and it just arrived to kuwait, we have lots of GT's but too bad we dotn have many of the newer ones and as for the Z's its kinda hard to find since not many people got them and they coast alot we have lots of zx though but no Z's and as for the GT i just hope i can find a bolt on engine cause i dont want to spend alot of time working on it Quote Link to comment Share on other sites More sharing options...
stony Posted January 28, 2005 Share Posted January 28, 2005 S20 = GTR modle = big $$$$$$$$$ teh s20 has a cross flow head with tripple carbs stock. the engine is worth its weight in gold and if it is actually installed in the car it is supposed to be in the car can fetch 40K + if in good shape in japan. If it has an s20 i would not swap a l28 or rb26!!!!!! keep it as an investment or sell it and build 2 rb26 zcars :> Quote Link to comment Share on other sites More sharing options...
AKWIKZ Posted February 5, 2005 Share Posted February 5, 2005 Here is what you have. The Skyline GT and GT-X had the L20 in them. Only the GT-R had the S20. Now, the L20 in your car is almost, but not quite, the same as the Z car engine. The Skyline has a front sump design oil pan where the Z uses the rear sump. I am in the process of swapping in an RB26 into my '71 Skyline GT-X and can tell you it is not cheap nor easy. You can swap in the L28et from the 280ZX turbo much more easily. You will need to use the stock oil pan from your L20 though. If you go with an RB, some of the parts that Z car guys are using will work such as the engine mounts. The tranny cross member is completely different. From what I can tell, if you are putting in an RB20, the tranny will bolt straight onto the stock cross member. An RB25 tranny is about two inches longer and will require an offset mount. The driveshaft will need to be completely fabbed up. Your stock one is an odd two piece telescopic one that can not be used with either RB tranny. When building your car, keep in mind your hp goal. The front of the Skyline is much less spacious than the Z and you will need to buy a very high quality core to get the efficiency needed for big power. This translates into money. Just somethng to think about. Hope this helps some. Brian Quote Link to comment Share on other sites More sharing options...
HS30-H Posted February 5, 2005 Share Posted February 5, 2005 to make it clear its a 1970 skyline GT i am not sure if the engine is an L20 or S20 but i thought they only came in an S20 .......................... ...............and as for the GT i just hope i can find a bolt on engine cause i dont want to spend alot of time working on it Er, binsayer I don't want to sound too harsh - but I think you are going to be on a very steep learning curve with this car. If you have no idea whether it should have an L20 or S20 then its probably fair to presume you don't know very much about the C10 series Skylines isn't it? This does not bode well for the rest of the work besides the engine swap. You are going to need to either repair and/or upgrade lots of other parts in the drivetrain if you install an RB, and even putting in an L28 will call for certain other changes. Don't underestimate that. And you say you don't want to spend a lot of time working on it? Quote Link to comment Share on other sites More sharing options...
binsayer Posted February 8, 2005 Author Share Posted February 8, 2005 well the reason i dont know if my car is a GT or a GTR is because i still havnt seen it i am still in the states and the car is in kuwait and about the swap i will do my best with it but if i had a problem which i am sure i will i have a good friend who will be helping me and we will be working on it with other friends so i am sure it wont take that long and i am hoping to get it all done by next fall the other good thing is we have lots and lots of good parts in junk yards you guys wont even belive what you can find over there and they dont cost a thing to get them Quote Link to comment Share on other sites More sharing options...
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