Gt 2560 R vs GT2860 RS in 800 ft

[Blue shadow]

As anyone ran the two turbos side by side with out nos in 750 ft ?Last weekend I ran against a 450 hp rear mount and got him by 1 1/2 sled lenghts in 750 ft with a gt 2554 R on 16 psi.We do not run studs.I need more power when some big sleds come my way.I need to get there fast ,so which turbo to get?Ted Jannetty is doing good with the GT2560R at 22 psi. Ted if you had the GT 2860RS on do you think you would do better on 750 ft? Just trying to understand how it all works,thanks.Need all the info I can get from you turbo guys.

 

[rx1 fern]

i think it would boost faster with the 2560 for drags but would make more power with the 2860. 2560r must be better other wise ted wouldnt be using it.i think the bigger turbo would be good for the mountains.just my two cents.rx1 fern.

 

[Blue shadow]

ttt

 

[Blue shadow]

ttt

 

[Ted Jannetty]

As anyone ran the two turbos side by side with out nos in 750 ft ?Last weekend I ran against a 450 hp rear mount and got him by 1 1/2 sled lenghts in 750 ft with a gt 2554 R on 16 psi.We do not run studs.I need more power when some big sleds come my way.I need to get there fast ,so which turbo to get?Ted Jannetty is doing good with the GT2560R at 22 psi. Ted if you had the GT 2860RS on do you think you would do better on 750 ft? Just trying to understand how it all works,thanks.Need all the info I can get from you turbo guys.

The 2560 is much better match to the rpm and cubic inch displacement of our sleds.
It spools instantly and does a good job of filling the cylinders.
The 2554 is rated at 27 lbs of air per minute.
The 2560 is rated at 33 lbs of air per minute.
Both with same exhaust side so in reality the same shaft speed produces more air flow.
Go with the 2560 it will outrun what you have by bus lengths.

The 2860 uses a different exhaust wheel and housing for more exhaust flow and spools a lot slower so NO my sled would not be faster with it in 660 ft. 750 might make up for the turbo lag on the big end because it is about 36 lbs. a minute.

To put this all in to perspective, 1 lb. of air per minute produces 9.5-10.5 HP.

Sorry I didn't see this sooner.

Tech questions can be emailed to me directly at tedj@jannettyracing.com

Ted.

 

[Blue shadow]

Thanks Ted for all the info.

 

[TurboJamie]

I have a hybrid 2854RS which works very nicely. 25 Housing on the exhaust side bored out to take the 28 wheel.

 

[snowy1]

I have a hybrid 2854RS which works very nicely. 25 Housing on the exhaust side bored out to take the 28 wheel.

which compressor wheel are you running, are you running the 2554 mid section as well.

 

[TurboJamie]

I beleive its a 2554 mid section but has the exhaust bored out to take the 28 wheel.

 

[4strokes are better than2]

is 22psi max boost for the 2560.

 

[Blue shadow]

yes

 

[fullthrottle800]

So whats best seems like different tubos set up with different combinations can all acheive same or similar results.

 

[Ted Jannetty]

So whats best seems like different tubos set up with different combinations can all acheive same or similar results.

Not true, every turbo has a specific HP range where it is most efficient.