GT2560 against GT2860RS

Thread Tools
 
Search this Thread
 
Old 05-10-2013, 06:24 AM
  #1  
Junior Member
Thread Starter
iTrader: (2)
 
nismo502's Avatar
 
Join Date: Sep 2009
Location: singapore
Posts: 228
Total Cats: 2
Default GT2560 against GT2860RS



Red for gt2860rs, blue for gt2560. Running 17psi.
1.6 NA with 2000 nb8 engine swap. Adaptronic, 3" exhaust with no cat. Cam sprocket with supertech valve spring. Wiseco 8.5, eagle rods, FM manifold. 850cc injectors. Blitz electronic boost controller.

Would anyone know why my top end is dipping despite turbo holding boost till the end? Manifold? Cams? I played with the sprocket but didn't made much difference.
Attached Thumbnails GT2560 against GT2860RS-20130510_132117_zps9ab7bd8a.jpg   GT2560 against GT2860RS-20130510_132117_zps9ab7bd8a.jpg  

Last edited by nismo502; 05-10-2013 at 01:46 PM.
nismo502 is offline  
Old 05-10-2013, 07:18 AM
  #2  
Elite Member
iTrader: (5)
 
Erat's Avatar
 
Join Date: Oct 2011
Location: Detroit (the part with no rules or laws)
Posts: 5,677
Total Cats: 800
Default

Turn your picture around...
Erat is offline  
Old 05-10-2013, 08:22 AM
  #3  
Elite Member
iTrader: (6)
 
Nagase's Avatar
 
Join Date: May 2009
Posts: 1,805
Total Cats: 2
Default

Dip should be intake manifold/throttle. Time for honda/64mm.
Nagase is offline  
Old 05-10-2013, 09:27 AM
  #4  
Senior Member
iTrader: (2)
 
Amellrotts's Avatar
 
Join Date: Oct 2011
Location: Hickory, NC
Posts: 675
Total Cats: 9
Default

At those rpms I think cams also come into play with the power dropping off.
Amellrotts is offline  
Old 05-10-2013, 09:30 AM
  #5  
Elite Member
iTrader: (6)
 
Nagase's Avatar
 
Join Date: May 2009
Posts: 1,805
Total Cats: 2
Default

Originally Posted by Amellrotts
At those rpms I think cams also come into play with the power dropping off.
Wtf. Cams come into play at all RPMs. Duh. Change your manifold first.

You come on, ask a question that can be found with a search, and then correct the answer. Just search.
Nagase is offline  
Old 05-10-2013, 10:58 AM
  #6  
Elite Member
 
JasonC SBB's Avatar
 
Join Date: Jul 2005
Posts: 6,420
Total Cats: 84
Default

What a/r exhaust housing is your 28060RS?
JasonC SBB is offline  
Old 05-10-2013, 11:58 AM
  #7  
Junior Member
Thread Starter
iTrader: (2)
 
nismo502's Avatar
 
Join Date: Sep 2009
Location: singapore
Posts: 228
Total Cats: 2
Default

Originally Posted by JasonC SBB
What a/r exhaust housing is your 28060RS?
0.86
nismo502 is offline  
Old 06-04-2013, 02:04 PM
  #8  
Elite Member
 
Laur3ns's Avatar
 
Join Date: Mar 2008
Location: Enschede, NL
Posts: 2,053
Total Cats: 12
Default

Nice, too bad it's on a 1.6. I ran an 2560 on a log manifold and will soon be running a 2860RS .86 on an AbsurdFlow, I think spool diff will be limited based on Hustler's previous achievements.
Laur3ns is offline  
Old 06-08-2013, 12:40 AM
  #9  
Senior Member
iTrader: (2)
 
Onyxyth's Avatar
 
Join Date: May 2013
Location: Boyertown, PA
Posts: 735
Total Cats: 62
Default

^He says he's got a 2000 NA8 in it
Onyxyth is offline  
Old 06-08-2013, 12:48 AM
  #10  
Elite Member
iTrader: (1)
 
Full_Tilt_Boogie's Avatar
 
Join Date: May 2009
Location: Jacksonville, FL
Posts: 5,155
Total Cats: 406
Default

Originally Posted by Nagase
Wtf. Cams come into play at all RPMs. Duh.
wat.
Full_Tilt_Boogie is offline  
Old 06-08-2013, 12:59 AM
  #11  
Elite Member
iTrader: (2)
 
thenuge26's Avatar
 
Join Date: Aug 2012
Location: Indianapolis
Posts: 3,267
Total Cats: 239
Default

IM/TB, and the FM log probably aren't helping.
thenuge26 is offline  
Old 06-10-2013, 08:49 AM
  #12  
Elite Member
iTrader: (8)
 
shlammed's Avatar
 
Join Date: Dec 2008
Location: Kingston, Ontario
Posts: 2,910
Total Cats: 51
Default

2860RS doesnt fair well above 1bar.

2871R graph would look like your 2860 graph but have the power hold steady. i didnt notice any difference in spool from a 2860 to 2871.
shlammed is offline  
Old 06-10-2013, 02:17 PM
  #13  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

That's not true at all, sorry.

There are numerous plots showing the 2860rs holding over 300 all the way to redline with no power dips. Its most definitely good for that much. Past 300 the 2871r starts shining of course, but up to that point I'd take the 60rs
18psi is offline  
Old 04-24-2014, 07:22 PM
  #14  
Senior Member
iTrader: (2)
 
Twodoor's Avatar
 
Join Date: Mar 2014
Location: Meridian, Mississippi
Posts: 628
Total Cats: 44
Default

Since nismo502 didn't include torque in lb-ft I calculated the points based on HP and RPM and graphed them along with the HP.



Dark Blue 2560 Torque Light Blue 2560 HP Dark Red 2860 Torque Light Red 2860 HP

Keith
Attached Thumbnails GT2560 against GT2860RS-nismo502-hp-torque.jpg  
Twodoor is offline  
Old 04-24-2014, 07:45 PM
  #15  
Elite Member
iTrader: (9)
 
buffon01's Avatar
 
Join Date: Sep 2008
Location: Michigan
Posts: 5,609
Total Cats: 13
Default

AFR plot? Spark map?

Upload and that can help clear the picture
buffon01 is offline  
Old 04-24-2014, 08:20 PM
  #16  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,650
Total Cats: 3,011
Default

Are you really running it to 8000 rpm on the dyno or is there a miscalculation?
sixshooter is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
compuw22c
MEGAsquirt
4
09-12-2015 07:42 PM
dvcn
Miata parts for sale/trade
19
10-03-2009 11:11 AM
240_to_miata
DIY Turbo Discussion
20
02-23-2009 02:17 PM
FoundSoul
MEGAsquirt
8
08-05-2007 05:52 PM
kung fu jesus
Miata parts for sale/trade
10
07-12-2006 01:54 PM



Quick Reply: GT2560 against GT2860RS



All times are GMT -4. The time now is 08:18 PM.