SR downpipe on RB25det

Discuss the RB20, RB25 and RB26 series engines.
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jrd450r
Posts: 194
Joined: Tue Oct 03, 2006 10:49 am
Car: 1990 RB25DET S13

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Im in the process of doing an rb25det s13 swap, I have a blitz 85mm sr20 s13 down pipe. Do the SR downpipes come anywhere close to working on the turbo outlets on the RB? Most people reccomend making a custom downpipe for this swap but it would be nice to utulize the SR pipe i have even if I have to modify it. So has anyone made one work before? got pics?


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BoostFab
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Car: S13cp, S13fb, S14z
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you will need to modify it to work

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nizmo zilvia
Posts: 751
Joined: Thu Jul 07, 2005 5:09 pm
Car: 95 240sx w/ S14 SR20 Blacktop

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Yes you can I was told. Someone local I know with a RB20 had a SR downpipe and just moved the flanges to the correct place.

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Kansei240sx
Posts: 1356
Joined: Mon Nov 01, 2004 10:17 am
Car: S13 - RB25 Circuit car
71 240z - street/track day car
AE86 - Daily Drizzle/track day car
Z31t - Paper weight/street car
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it nearly lines up, i had one SR dp from megan racing, and the holes had to be drilled out and rotated to line up with it, but i said fck it and ran my stocker than came with my set, and gave the SR DP which was awesome, to my friend with an SR.

BigPar
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Joined: Mon Jul 11, 2005 2:30 pm

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i heard you just have to rotate the flange to line up with the turbo elbow.

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nizmo zilvia
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Joined: Thu Jul 07, 2005 5:09 pm
Car: 95 240sx w/ S14 SR20 Blacktop

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correct. thats what i ment if no one understood me.

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starkos14
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Car: s14 R33*, 99 gs300(2jz-gte soon)
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where are you doing this swap? and what color s13 do you have?? i havent really seen any swapped 240s around richobor, ever besudes the tst meets. sorry for the thread jack, i live in newtown, thats all

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jrd450r
Posts: 194
Joined: Tue Oct 03, 2006 10:49 am
Car: 1990 RB25DET S13

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Youve never seen my car since it doesnt move yet ha. I used to go to some of the TST meets with my buddies but they shut that all down. What do you drive, if you have an RB 240 ill have to check it out sometime. I dont go to Newtown though, EVER anymore. Newtown is bad news, its a bust.

heres a link to my cars progress, zerothread/201306
Modified by jrd450r at 2:08 PM 1/24/2007


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