Build an SR the cheap way.

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
Nismo_Freak
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People seem to be overlooking the SR20DE engines as a starting block for a hi-po engine.

SR20DE - $650Injectors - $250Top Feed Rail - $50Forged Pistons - $400Forged Rods - $500Bearings - $30Machine Work - $200Headgasket - $150Headstuds - $120Misc. Crap/Gaskets - $100

Built Bottom End SR = $2450

About what you'd pay for a decent clip. Except you now have a fresh motor.

Something to think about.

Please remember that the list is arbitrary ... it's not complete.


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ETTInnov04
Posts: 378
Joined: Fri Dec 03, 2004 4:38 am
Car: 1989 Nissan 240sx fastback

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Thats a very good point considering how hard it is to find low mile SR20DET's now.In theory it would be possible to use the SR20DET harness and ECU with this setup as well. Hmm something to think about if I blow my SR. Hmmm... think about indeed.

Superist1
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Car: 89' 240sx Coupe
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Noob here But just curious in the KA24E transmission will work in this setup? Also would you need the all the same stuff fo the SR swap also( i.e. rad) and would the Greedy or other intake manis bolt up? sorry for waht my seem like dumb questions but just woundering.

Superist1
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Just trying to make sure that I'm not being that stuipd, ya'll are talking about ths SE-r motor (USDM).

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Project S13
Posts: 248
Joined: Thu Nov 11, 2004 10:44 am
Car: Nissan 240SX Fastback

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Nismo_Freak wrote:People seem to be overlooking the SR20DE engines as a starting block for a hi-po engine.

SR20DE - $650Injectors - $250Top Feed Rail - $50Forged Pistons - $400Forged Rods - $500Bearings - $30Machine Work - $200Headgasket - $150Headstuds - $120Misc. Crap/Gaskets - $100

Built Bottom End SR = $2450

About what you'd pay for a decent clip. Except you now have a fresh motor.

Something to think about.

Please remember that the list is arbitrary ... it's not complete.
Alright, I may be misinterpretting something here but...what's the mileage going to be, you are talking about how its low mileage but why is that? Is it easier to find a low mileage N?A SR20?? Or are yout alking picking one up from like a sentra as someone else asked?

Also if so is it going to be easy to make it RWD?

Finally the main thing-you still don't hae the turbo kit. I guess you are assuming that building up an SR one would buy a better turbo and kit for it but those kits are like 2 or more grand alone...that's just a sad amount of extra expense. Anyway thugh if this is what you mean it'd be a great plan assumig you wanted a pretty monstrous SR, it would save some money/mileage for sure. Good thinking

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ETTInnov04
Posts: 378
Joined: Fri Dec 03, 2004 4:38 am
Car: 1989 Nissan 240sx fastback

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I dont know what the differences are in the FWD and RWD versions. I took it as a good alternative to buying/ importing another SR20det, incase you happen to put a rod out the side of the your block.

After you were to rebuild the motor(pistons,rods, etc.) it would essentially have no miles, therefor new. But if you dont have the turbo and everything then your probably looking at a couple hundred $$$ more to source and buy the original factory parts. But since you need them anyway (assuming you dont already have an SR) why wouldn't you upgrade? So we'll change tha figure to say $2000.

sdtouge
Posts: 983
Joined: Mon Jul 05, 2004 8:53 am
Car: 1990 240sx coupe

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all ka transmission internals will work, but you have to use the sr bell housing.(for the guy who asked about ka trannise working)

i know people can convert rwd ca18's to fwd, so i am shure this could be done, but i would be semi-difficult to by all the parts your would need like exhaust mani, turbo, intake mani...etc

i tihnk it woud be chraper to buy a blown sr and rebuild that. and easier.mattt

Superist1
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I'm also woundering if the ka harness will work or if I have to get an SR harness? But as far as buying all new stuff like Mani's, turbo and FMIC and ect. is already planed in my budget but just woundering if the motor will line up with the S13 stock mounts. Because If all I need is the SR trans Bell housing( or trans) I can just go ahead a build the motor the way I want to so it will be stout.

USsil80
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well i think that the na sr doesn't have oil squirters .. just what i thought

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eliterit
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i know my fwd n/a sr20 does not come with oil squirters and it is quite possible that the rwd n/a sr20 doesnt either

but i cant guarantee

Superist1
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Has any one ever heard of something like a B13 Sr into a S13. All I really want to know is if the motor mounts line up, and witch harness to use Because I can't really believe that Nissan would go to such great lengths to build a complety different motor with the same engine code. But correct me if I'm wrong! I tired a search but came up with nothing and don't know how els to phrase it.

Onizuka
Posts: 8450
Joined: Wed Nov 06, 2002 5:24 pm
Car: 91 Nissan S13 coupe SR20DET
89 Nissan S14 hatch SR20DE

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FWD SR blocks cannot be made RWD (if you operate in the realm of sane spending). Alan is talking about s13, s14 and s15 rwd SR20DE's. Main differences are no oil squiters, distributer ignition, and no sodium filled exaust valves. The usefulness of these turbo-only extras is debatable.

s13sr20chris
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i have a buddy that is getting ready to do one of theese. the s13 sr20de sells cheap! i wish i would have known before i got mine, i could have built my beast for less.

one point, na sr has distributor ign. not such a bad thing though.

Nismo_Freak
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Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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Sweet mother of god did people take off the wrong way with this lol.

1. Oil squirters can be installed in the SR20DE engines. These are definately a good idea overall.

2. I see distributor ignition as a benefit. Mainly due to the ease and overall cheap modification that can be done to the systems. You could easily use FWD SR20DE parts to cover RWD part downfalls. Less cost over the long run.

3. KA24E transmission would be geared really odd for an SR IMO.

4. All intake manifolds, and other aftermarket parts will bolt up.

5. Sodium filled valves are a benefit but you can buy these from Nissan when performing the engine rebuild. Not an expensive venture at that point.

spider_slayer
Posts: 1999
Joined: Thu Sep 30, 2004 8:44 pm
Car: S14 240SX
S13 240SX

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i've never heard of sodium filled valves. what are they and what are the benifits?

i like the thought of having a nearly brandnew sr but the other costs of the turbo and mani and maybe even a fuel pump would make the project become pretty expensive. would it not be cheaper to buy a sr clip and jsut replace the usuals for say another 500-1,000 and have an engine with say 60,000 miles on it that can easily go another 40,000?

i already have my sr ... and i'm sure glad there is an american version so ALL of our stuff doesn't have to come from japan.

IveBeenBad
Posts: 1138
Joined: Sun Jan 12, 2003 11:53 am
Car: 1990 Nissan 240SX Fastback STOCK BIOTCH

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Nismo_Freak wrote:Sweet mother of god did people take off the wrong way with this lol.

1. Oil squirters can be installed in the SR20DE engines. These are definately a good idea overall.

2. I see distributor ignition as a benefit. Mainly due to the ease and overall cheap modification that can be done to the systems. You could easily use FWD SR20DE parts to cover RWD part downfalls. Less cost over the long run.

3. KA24E transmission would be geared really odd for an SR IMO.

4. All intake manifolds, and other aftermarket parts will bolt up.

5. Sodium filled valves are a benefit but you can buy these from Nissan when performing the engine rebuild. Not an expensive venture at that point.
On #3, everything I've seen (FSMs, etc) has shown that the SR and KA transmissions are geared EXACTLY the same...

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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IveBeenBad wrote:On #3, everything I've seen (FSMs, etc) has shown that the SR and KA transmissions are geared EXACTLY the same...
They aren't.

5th gear on the SR is quicker than the KA.

The FS5W71C gearbox is a whore lol.

I made that comment because I'd imagine that the longer 5th ratio would facilitate more downshifting into 4th for highway passing. I'd rather have the quicker ratio so I can just pass with ease.


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