Garrett 2860 -Or- 2871 ?

[jijohans]

That is where we ride and race JJohans.. I am at sea level and go no higher than 2200 feet above.

the 2876 makes boost at sealevel around 2700 rpm on the 800 rev.

Gus

So if have got this right the 2876 is the way to go for better response? Was thinking of a 2871 chra for my m8, but if the 2876 is soo much better I have to re think my choices...
How many are using IC at 13psi? I think the IC made my sled less responsive.. Maybe I will go back to the pumpgas intake with aux injectors...

 

[realbass]

why do you want leave the intercooler?

 

[jijohans]

why do you want leave the intercooler?

Because I think I did loose response on my sled, going on/off on the throttle... Maybe the 2876 will cure my problems... Also going down to 13psi and run pumpgas...

 

[gus bohne]

Most i/c's are old poor flowing designs that are cheeeeepppp to put into a KIT.

The Shaman air to water units are very high flowing, islandoo has one on his xp turbo, you see many on the cats these past few yrs too.

I just got some extruded core HI flow Bell cores in to flow test for the triples..
I love the flow and volume,, I hate the sheer weight of the damn thing..

Will stick with the SHAMAN coolers,, even at 42 psi airbox we only had 44.6 psi at turbo outlet..pressure drop was moot as far as I am concerned...

the bigger compressor makes less heat than the smaller ones,, look at the frozenboost site and see what you like...

I use the BARREL types, 3 inch inlet and outlet...they have a 2 1/2 unit as well same core and size, just smaller end fttings


Gus

 

[mynewuseddoo]

Just so I am clear on all this, the .64 a/r hot side will give better off the line and boondocking response than the .86 a/r hot side, correct?

Also I have a 2860 right now, if a guy ordered the 2876 compressor wheel and housing to use with my existing CHRA and turbine housing, is it simply just a matter of swapping my 2860 compressor wheel off of the shaft for the 2876? No balancing required or anything along those lines?

 

[Wheel House Motorsports]

the .64 housing isnt going to flow enough exhaust with a 28 hotside and you will not like how long your motor lasts with it setup.

and you should be able to just swap the compressor and housing, not sure if all garrett stuff is component balanced or what. i know my mitsu turbo parts are, but thats just guessing, someone with more garrett knowledge could let you know.

 

[backcountryislife]

why do you want leave the intercooler?

Because they cost you response & only really help on bigger pulls.

For most people they're not needed.

We run 11-14 without them here.

Look at the last setup Burandt was running on a cat, it also was in that realm of boost without an IC.

 

[mynewuseddoo]

Never mind. I called a few Garrett dealers and the 2860's center section isn't compatible with the 2871 or 2876 housings or compressor wheels. No turbo mods here

 

[Vertical-Extreme]

http://www.atpturbo.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=tp&Category_Code=GCH


http://www.atpturbo.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=tp&Category_Code=GCH

http://www.atpturbo.com/mm5/merchan...uct_Code=GRT-CWH-001&Category_Code=COMPWHEELS

--Just convert your existing 2871 to this housing and compressor wheel and now you have the Hybrid that flows better than the 2876 but spools like the 2871. You will need a 2.5 inch Diam. charge tube from Twisted or whoever and it has a 4 inch Inlet.. Total cost under $500 bucks.




--Disclaimer--Verify these components are what you want. This setup is just an opinion formed by reading through these threads.

Anyone look into this further ? I'm curious now....

 

[Tonysnoo]

Because I think I did loose response on my sled, going on/off on the throttle... Maybe the 2876 will cure my problems... Also going down to 13psi and run pumpgas...

I found the opposite on my setup. I am running a large turbo on an 09 M8. I did some informal testing on a sunny spring no-hood day. There was absolutely no doubt that the mid rpm acceleration and on-off-on throttle was better with my IC(fan cooled) in place than bypassed.......with little difference off engagement rpm. The same piping and hose bends were used for both setups, just a different config.

I know it goes against reason and what others have "felt". It may have been because of the warm day or the big turbo or ??????. These findings were at 11-12 psi on race gas. I have no real idea why, but can only guess that the pressure drop was minimal for the flow and the cooler charge temps were a key factor to the all around response.