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The JDM/USDM Roller Rocker SR20DE Info Thread

150K views 166 replies 40 participants last post by  honda1994  
Hi..I have a 2001 RR from a jdm primera p11

1-The head its a 2j2 and the block 53j

2-Comp its 9,3 .1 I have messure it manual says 9.5, the head its 1mm bigger then the usdm sr20de high port

3-The pistons and rods are exactly the same a as the usdm 1992 nx2000 motor

4-0.7 mm from the stock 1first ring land to the plate.

5-The motor cames from factory with the rev limiter at 7150 rpm

6-Its has a side feed injectors 269cc tested at 3 bar.

some pics...

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RR head.

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53j head and RR head

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jdm rr piston.

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jdm RR motor at 7150 rpm. stock.
 
SOme dyno data off the RR motor.

This its a 130.000 miles motor...

stock car timing 13
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stock car timing 17
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stock car timing19
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stock car timing20
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stock car timing 20 plus tuneup
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stock motor plus 2,5 exhasut cat back.timing20
http://www.trackday.cl/foros/index.php?act=Attach&type=post&id=1814

stock motor 2,5 exhaust plus k&n drop in. timing20.
http://www.trackday.cl/foros/index.php?act=Attach&type=post&id=1861


here are some other dynos....
jwt ecu -ur pullies 2 set-crushbent 2,25 catback wrx muffler-apexi itc-super afc2-jwts3r cams-hotshot header gen4-stock cat-ground kit-Bored 64 mm TB
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this one are a comparation of the same car above and another p11 (home made cai timing 20 3 inch exhaust that its..)
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:biggthump
 
XxToKeSxX said:
THANK YOU FOR THIS

Please Check Pg. 3 for Detailed pictures of Taken apart JDM RR from P11 P11 Primera


Those are some good pics... I will save them.

BTW, what does that code say on the RR head under the Distributor gaps... SL?

Thanks to you. man...for this thread...
I will check the number today..
 
XxToKeSxX said:
THANK YOU FOR THIS

Please Check Pg. 3 for Detailed pictures of Taken apart JDM RR from P11 Primera


Those are some good pics... I will save them.

BTW, what does that code say on the RR head under the Distributor gaps... SL?

3L Under the Distributor....
 
I use 1,12....

xxtokesxx I will reply about the water pump in monday...for shoure I will know the answered..

the stock RR jdm don t have 143 hp...I think 135-7 the cams are the main diff
 
XxToKeSxX said:
1.12 is a more conservative multiplier... I like it...

I put the new water pump on from a regular SR... but yes, let me know...

I stand corrected. :D
so the water pump from de udsm its the same????
 
Just to update some of the dynos... From a JDM p11 2j2 motor.

Dyno stock p11 timing at 13 (motor with more than 200.000-km)
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Dyno-2 timing at 17
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Dyno-3 timing at 19
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Dyno-4 Timing at 20
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Dyno-5 timing at 20 plus tuneup( bkr6e gaped at 1,1mm , tps at 0.45 volt ,new rotor , new air filter, MAF reground)
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Dyno-6 timing at 20 Hotshot cai ,ground kit,3 inchs exhaust
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Dyno-7 JWT ecu,cams s3r,ur pullies,Hotshot cai,hotshot header gen 3,apexi s-afc2 ,apexi itc(timing)2,25 inch crush bent exhaust wrx muffler.
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Dyno-8 p11 stock vs p11 with cai,timing,exhaust
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Turbo p11
t28 from gti-r
14lbs
3 exhaust
2,25 gtir. jpipe
evo 7 fmic
440 injectors
afc2
itc
avc-r
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t28 vs 3071r .86 trim 90 same setup just turbo change... same boost 10lbs both turbos
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12lbs 3071r
changes from above dyno
3 dp , 3.5 exhaust
big fmic
b13 ecu 7500 rpm stock everything else
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This is another setup sc61 turbo plus many things .. still Stock RR motor

link
http://www.sr20forum.com/turbo/202456-gti-r-manifold-tial44mm-bigturbo.html

360 whp at 14,5lbs
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After that I put a pt67 and boost to 29lbs... *** car puts down over 500whp on a STOCK RR motor...

Now Im under new development of a new setup wich will include... s3r cams.. springs and retainers.. custom made intake manifold .equal leg exhaust manifold.. etc..
I will dyno this setup at 14lbs ... then Im going to forge te RR motor
Hope this helps some.
Good luck people-