quick question on the 2860 turbos - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

razi-islam · 28th June 2008, 08:14 PM

alrite gents

was going to go down the single turbo route but its turning out to be too expensive..so ive decided on 2860s...the new engine is a 2.7

just wondering when the following will kick in and what sort of power the below give:

2860-5
2860-7
2860-10

ive got a 2.7 now..with some 280 cams.

any info would be great

ta

tomek · 28th June 2008, 08:40 PM

Too many variables mate...

I've seen 450hp from -7, 600hp from -5, not too sure about -10 (don't know anyone with this set-up)

Generally the -5 is a good 500rpm laggier then the -7... But since you have the 2.7 this will narrow it down..

Rb26 Turbo Upgrade, All Dyno Results - Skylines Australia

Have a read.. Worth it's weight (if any

) in Gold!

Good luck bud

plkettle · 30th June 2008, 09:31 AM

i run the -5's and they are great, 600hp easy and comes on boost really nice.

VSPEC-33 · 11th July 2008, 01:32 AM

With the extra capacity and larger cams, which will be most efficient at high rpms, the -7's will run out of puff. -5's would keep it nice and responsive because of the extra cubes, but keep pulling all the way to the redline.

kismetcapitan · 11th July 2008, 02:47 AM

-10 turbos will shuffle. you don't want that.

GT-R Glenn · 11th July 2008, 04:25 AM

5's would spool very very quickly but limit top end power to 600 ish.
Be an awesome road car, track car setup.

trickymex · 11th July 2008, 08:53 AM

im running -5's and they are great, very smoth surge of power right to the redline, and only very marginally laggier than standard

zig-zag · 11th July 2008, 10:32 AM

very happy to read the above comments about the -5's as they are getting installed in mine as we speak

trickymex · 11th July 2008, 11:18 AM

Quote:

Originally Posted by zig-zag

very happy to read the above comments about the -5's as they are getting installed in mine as we speak

you wont be dissapointed

Niklas · 11th July 2008, 11:26 AM

I made 400@0,9bar on the wheels with mine.
(got cams and other things to)

plkettle · 11th July 2008, 01:29 PM

1.5 bar is a good limit for these (they can run 2.0 as per kismet - but will wear much faster)

400whp at 0.9 bar is a good figure, if you have the supporting mods get the boost up to 1.5 as it is a massive difference in power delivery

Niklas · 11th July 2008, 03:31 PM

its on 1,3-1,4 now and will take them to 1,5 soon.

Adam Kindness · 11th July 2008, 03:41 PM

We have a pair of -5's on our TimeAttack car. We will aim for 550 or so with 1.5/1.6bar

kismetcapitan · 11th July 2008, 04:02 PM

550 is easy at 1.5 bar - I made 500 at the wheels with a crap conservative map at that boost. With 1.6 and a good track map you'll be closer to 600 at the crank.

I need to start shopping for spare turbos. I estimate about 5000km life left in mine. 20,000km between rebuilds on turbos may seem ridiculous, but then you haven't felt what 2 bars on these are like!!

tuRBy · 13th July 2008, 12:54 PM

Quote:

Originally Posted by kismetcapitan

550 is easy at 1.5 bar - I made 500 at the wheels with a crap conservative map at that boost. With 1.6 and a good track map you'll be closer to 600 at the crank.

I need to start shopping for spare turbos. I estimate about 5000km life left in mine. 20,000km between rebuilds on turbos may seem ridiculous, but then you haven't felt what 2 bars on these are like!!

Kismet: have you dyno'd your car at 2.0bar? atw?

what cams and do you have a modded/ported head?

28th June 2008, 08:14 PM	#1 (permalink)
razi-islam GTR Register Member Join Date: Aug 2005 Posts: 423	quick question on the 2860 turbos alrite gents was going to go down the single turbo route but its turning out to be too expensive..so ive decided on 2860s...the new engine is a 2.7 just wondering when the following will kick in and what sort of power the below give: 2860-5 2860-7 2860-10 ive got a 2.7 now..with some 280 cams. any info would be great ta

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28th June 2008, 08:40 PM	#2 (permalink)
tomek GTR Register Member Join Date: Apr 2008 Location: Townsville, QLD Posts: 166	Too many variables mate... I've seen 450hp from -7, 600hp from -5, not too sure about -10 (don't know anyone with this set-up) Generally the -5 is a good 500rpm laggier then the -7... But since you have the 2.7 this will narrow it down.. Rb26 Turbo Upgrade, All Dyno Results - Skylines Australia Have a read.. Worth it's weight (if any ) in Gold! Good luck bud

30th June 2008, 09:31 AM	#3 (permalink)
plkettle New Users Join Date: Feb 2004 Location: york Posts: 1,197	i run the -5's and they are great, 600hp easy and comes on boost really nice.

11th July 2008, 01:32 AM	#4 (permalink)
VSPEC-33 GTR Register Member Join Date: Jul 2006 Location: Australia Posts: 30	With the extra capacity and larger cams, which will be most efficient at high rpms, the -7's will run out of puff. -5's would keep it nice and responsive because of the extra cubes, but keep pulling all the way to the redline.

11th July 2008, 02:47 AM	#5 (permalink)
kismetcapitan GTR Register Member Join Date: Nov 2005 Location: Seoul Korea Posts: 6,316	-10 turbos will shuffle. you don't want that.

11th July 2008, 04:25 AM	#6 (permalink)
GT-R Glenn GTR Register Member Join Date: Nov 2002 Location: Waiuku NZ Posts: 1,176	5's would spool very very quickly but limit top end power to 600 ish. Be an awesome road car, track car setup.

11th July 2008, 08:53 AM	#7 (permalink)
trickymex GTR Register Member Join Date: Nov 2007 Posts: 351	im running -5's and they are great, very smoth surge of power right to the redline, and only very marginally laggier than standard

11th July 2008, 10:32 AM	#8 (permalink)
zig-zag GTR Register Member Join Date: Nov 2007 Location: Aberdeen Posts: 122	very happy to read the above comments about the -5's as they are getting installed in mine as we speak

11th July 2008, 11:26 AM	#10 (permalink)
Niklas GTR Register Member Join Date: Feb 2006 Location: Sweden Posts: 199	I made 400@0,9bar on the wheels with mine. (got cams and other things to)

11th July 2008, 01:29 PM	#11 (permalink)
plkettle New Users Join Date: Feb 2004 Location: york Posts: 1,197	1.5 bar is a good limit for these (they can run 2.0 as per kismet - but will wear much faster) 400whp at 0.9 bar is a good figure, if you have the supporting mods get the boost up to 1.5 as it is a massive difference in power delivery

11th July 2008, 03:31 PM	#12 (permalink)
Niklas GTR Register Member Join Date: Feb 2006 Location: Sweden Posts: 199	its on 1,3-1,4 now and will take them to 1,5 soon.

11th July 2008, 03:41 PM	#13 (permalink)
Adam Kindness GTR Register Member Join Date: Jun 2002 Location: Aberdeen Posts: 2,210	We have a pair of -5's on our TimeAttack car. We will aim for 550 or so with 1.5/1.6bar

11th July 2008, 04:02 PM	#14 (permalink)
kismetcapitan GTR Register Member Join Date: Nov 2005 Location: Seoul Korea Posts: 6,316	550 is easy at 1.5 bar - I made 500 at the wheels with a crap conservative map at that boost. With 1.6 and a good track map you'll be closer to 600 at the crank. I need to start shopping for spare turbos. I estimate about 5000km life left in mine. 20,000km between rebuilds on turbos may seem ridiculous, but then you haven't felt what 2 bars on these are like!!