nissan s13 sr20det turbo any good for miata - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Prefabbed Turbo Kits A place to discuss prefabricated turbo kits on the market
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools
Old 02-05-2012, 03:42 PM   #1
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Sep 2011
Location: Plano TX
Posts: 595
Total Cats: 2
Default nissan s13 sr20det turbo any good for miata

I found a turbo localy the guy says it is for a s13 sr20det. He says it is .80 a/r comp and .64 a/r turbine.
Would this be an ok turbo for a vvt 1.8. Will it be more laggy than the 2554 on my 1.6. At what rpm do you figure I would be fully spooled. 3k or 4k?

Should I buy it if I can get if cheap?
90 Turbo is offline   Reply With Quote
Old 02-05-2012, 04:07 PM   #2
Senior Member
iTrader: (5)
 
Join Date: Jul 2011
Location: Sonora, Ca
Posts: 623
Total Cats: 73
Default

Search 'sr20 t25' you'll get plenty of info. I just picked a newly rebuilt one up for $100 locally.
bikersam717 is offline   Reply With Quote
Old 02-05-2012, 04:56 PM   #3
Moderator
iTrader: (11)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 15,662
Total Cats: 1,560
Default

Quote:
Originally Posted by 90 Turbo View Post
Will it be more laggy than the 2554 on my 1.6.
It is a 2554, dude.

Worth $50 used and $100+ freshly rebuilt
sixshooter is offline   Reply With Quote
Old 02-05-2012, 05:31 PM   #4
Elite Member
iTrader: (7)
 
samnavy's Avatar
 
Join Date: Apr 2006
Location: VIRGINIA BEACH, VA
Posts: 6,020
Total Cats: 175
Default

It's journal bearing, and flows a bit less than a 2554r... still on a VVT 1.8, I would expect to start spooling around 1600-1800, and be fully spooled at 3500 at the latest... assuming good exhaust. I know that some guys have managed to make like 15psi in the low 3000's.

On the other hand, above 3000rpm, it's like the turbo is directly connected to the gas pedal... there is fantastic response especially on the VVT motors. You might manage 240whp out of one if running 93octane and a big exhaust, but I'd say that 225-230whp is about right for 14-15psi on the SR20det turbo, and that 240whp figure should be a piece of cake with a 2554r, a piece of cake yes, but also MAX.

Something else to think about is that you're giving up a crap-ton of midrange torque vs. the 2560 and only sacrificing a few hundred rpm of spool that on the street you won't miss.
samnavy is offline   Reply With Quote
Old 02-05-2012, 05:32 PM   #5
Elite Member
iTrader: (5)
 
pusha's Avatar
 
Join Date: Nov 2009
Location: Miami, FL
Posts: 7,363
Total Cats: -32
Default

I just picked up two of these. Need to clock one though
pusha is offline   Reply With Quote
Old 02-05-2012, 05:58 PM   #6
Hittin' Boost & Cones
iTrader: (2)
 
240_to_miata's Avatar
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,572
Total Cats: 11
Default

As everyone said its a 2554. Easily rebuildable. Easy to clock pusha, but you will need to make a bracket for the wastegate actuator.

I made 225 on mine.
240_to_miata is offline   Reply With Quote
Old 02-05-2012, 06:14 PM   #7
Elite Member
iTrader: (5)
 
pusha's Avatar
 
Join Date: Nov 2009
Location: Miami, FL
Posts: 7,363
Total Cats: -32
Default

Quote:
Originally Posted by 240_to_miata View Post
As everyone said its a 2554. Easily rebuildable. Easy to clock pusha, but you will need to make a bracket for the wastegate actuator.

I made 225 on mine.
I did some reading, doesn't look too bad. Thanks.

I just need to actually do it, lol.

related thread for those interested:

https://www.miataturbo.net/showthrea...clocking+turbo
pusha is offline   Reply With Quote
Old 02-05-2012, 07:01 PM   #8
Senior Member
Thread Starter
iTrader: (3)
 
Join Date: Sep 2011
Location: Plano TX
Posts: 595
Total Cats: 2
Default

could I use the cold side housing from my bb 2554. It is already the right size for my piping?
90 Turbo is offline   Reply With Quote
Old 02-07-2012, 03:54 AM   #9
Junior Member
iTrader: (6)
 
Join Date: Nov 2010
Location: Three Rivers, Ca
Posts: 176
Total Cats: 4
Default

The sr20 turbo is what I've chosen for my first build. Got one in good condition off the Zilvia forum a couple months ago for $120 shipped, and there's never a lack of supply for these turbos over there. Everyone ditches them for a T28 or some other larger turbo it seems, so you can pick them up on the cheap. It appears that I'll have to clock mine also and make a bracket for the actuator, but I like making stuff so no big deal.
RayinNorCal is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
91 1.6l turbo complete part out. Tony the Tiger Miata parts for sale/trade 63 12-29-2016 03:23 AM
Turbo 1995 Miata Low mileage Clean Tekel Cars for sale/trade 29 02-05-2016 05:16 PM
Headphones PaperMate Insert BS here 32 09-25-2015 09:22 AM
Looking for copper jankymiata Engine Performance 23 09-12-2015 07:07 PM
Hi turbo kitten nelson8708 Meet and Greet 11 09-06-2015 10:49 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:44 PM.