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 Sr20de To Sr20det - parts needed??  

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driftomania
  • driftomania
  • Site Newbie
  • Member No.: 34,775
  • Joined: 26-October 05
  • Posts: 9
  • From: Australia
Post #1 post 5th June 2006 - 01:02 AM
hey guys.. what parts do i need to convert my sr20de to a sr20det like all the parts??.. i have a 1991 silvia and i know this topic has probably been brought up a thousand times but yeah i cant seem to find it anywhere.. cheers guys
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Post #2

wiring harness and ecu from turbo sr
oil and water lines, modified sump for oil return

apart from that, the manifold, turbo and dump pipe, zorst, intake pipes etc..


avalonea
Post #3

um considering the engines are alot different

full engine / loom swap the engine loom leave the rest should work ok.

hey presto ! smile.gif

`josh

kayarubin
Post #4

yeah man as avalonea said, dont bother with converting the NA engine....it will cause too many problems with the higher compression pistons when upping the boost.....just go the engine swap mate! much easier!

lo_rolla
Post #5

Swap the engine.

SR20DE does not have oil squirters in the rods which cool the piston crown and provide lubrication for the bore. They also use a higher compression piston then the turbo motor.

You could use the DE, but I'd recomend a rebuild.

DreamensioN
Post #6

As said above - don't reinvent the wheel. It's a long painful road.

Just spend $2-$3k and buy an SR20DET front cut - www.sorted.com

driftomania
Post #7

should i buy this blown backtop sr20det from a 1997 180sx for around 200-250. The Head is ok but the block is knackered.. No idea whats wrong with the motor except the block has a huge gaping hole on one side,was in good working condition before this.. so what should i do buy it and rebuild it or just buy a sr20det motor straight up..?? cheers

DreamensioN
Post #8

That's up to you and your budget/time. Me personally...I wouldn't buy an engine that needed a new block. That's the strongest part...and if that's damaged...I'd hate to know how it got to that.

Your better off spending the extra money to get a black top engine that's in working order, and going from there. At least if it is working straight up, you can put it into your Silvia and away you go. Then you can choose to rebuilt it stronger later if you need. Or if you want to build it straight away...at least you know it was working before you bought it.

Its like the old saying - you get what you pay for.

driftomania
Post #9

thats true..

lo_rolla
Post #10

You cannot rebuild a motor with a hole in the block. The tiniest crack in the block fucks with its structural integrity. At work we have a few engines that we specially check for cracks (202, 4g54). Cracks can be repaired, holes cannot.

If there's a hole in the block, that means its missing an entire cylinder, too. Don't do it.
Buy a good condition motor. It's worth it.

You could buy the fucked one for parts, if you got the money. Can't hurt to have a spare head, spare crank (if it's not fucked) and something you can tinker with at home to get a better understanding of the motor.

You could buy the fucked one and get the head rebuilt to a higher spec, then drop it on the good bottom end, that way the car isn't off the road for as long.

But I'd just buy the good block.

driftomania
Post #11

could i keep my bottem end and just make my sr20de, a turbo with the blown sr20det motor.. because the head seems to be fine..

lo_rolla
Post #12

You could keep your bottom end and put the DET head on it, it will line up (oil galleries / water jackets). To lower the compression you could chuck in a thicker head gasket, however, changing the compression ratio in this way (thick head gaskets and shaving heads) can lead to problems while raplacing things such as timing belts.

But, then you still got the lower qaulity pistons and no oil squirters.

How much money have you got to play with?

If you wanna put the DET head on your bottom end _I_ would recomend a bottom end rebuild. In saying this, you don't need forged pistons, you can get pistons for motors in all diff. comp. ratios. Then get your builder to source some DET condrods.

Get the big ends resized, bushes changed and resized (I can arrange this for you at a very very very good rate, just don't tell my boss). Crank shaft machined (this I cannot do) then ARP rod bolts, head studs and main bolts...

...dude, I'm real drunk right now. I'll explain more Monday night.....

slow laser
Post #13

if u get a after market ecu, a turbo sr20de can be a very nice motor. but keep in mind that u cant pull the sorts of power figures out of it as u can the det. u could push about 170-180kw at the wheels safely, and it would have the nice bottom end, just throw in a head gasket, to drop the comp. ratio down a little bit... and it would be a nice car to drive to. but make sure u took it to a very reputable tuner, as the ramp onto boost and higher comp ratio can = disaster if the tuneing isnt richer as the boost comes on. just a thought.... hope it helps.

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