Precision 6266 Vs. 6466 (Goal - 700whp)

SLOWESTN54

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Size, they are very large. But yes that would be a very nice turbo to use. or a water cooled new garret. Their new line looks sweet!
Is going a new garret worth it when you couldn't benefit from the spool anyways. Unless your built motor. But i agree I'd love a new Gen 3 garret.
 

RuskiRacer

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Jul 17, 2019
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Is going a new garret worth it when you couldn't benefit from the spool anyways. Unless your built motor. But i agree I'd love a new Gen 3 garret.
I don't see how its worth it when precision gen 2s still make more power and you don't have to run coolant lines. The one nice thing garret has is the turbine housings don't rust
 
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doublespaces

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I don't see how its worth it when precision gen 2s still make more power and you don't have to run coolant lines. The one nice thing garret has is the turbine housings don't rust
The coolant lines are actually one of the main reasons I'd want a new GTX. We have the unique opportunity with the electric coolant pump which will cool those turbos after shut down.
 

RuskiRacer

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The coolant lines are actually one of the main reasons I'd want a new GTX. We have the unique opportunity with the electric coolant pump which will cool those turbos after shut down.
Would be a decent feature for guys that track their cars. For a street car I think its over kill. Have seen gen 2 6266s going for 30k miles strong on n54s
 

SlowE93

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The spool is basically the same.

Google 6266 vs. 6466 and you can see how they spool almost identical but the 6466 has more top end headroom.

Again both can max out a stock block on full E85. But I don't see they reason to go with the 6266 when they spool basically the same. You will not notice it on the street, only on a dynochart. 100-200rpms slower max iirc.

View attachment 61056
What about lag though ?
I have never ran either so can't comment but dynos don't show lag.
Comments anyone who has ran both ?
Some have already said the 6466 has noticeable lag.
 

Msoden82

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Sep 2, 2021
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Size, they are very large. But yes that would be a very nice turbo to use. or a water cooled new garret. Their new line looks sweet!
The new Garrett line looks fantastic. Good to see them moving the game forward as time progresses. Hope some people take the plunge and install one to provide the community feedback and data.
 

Torgus

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The coolant lines are actually one of the main reasons I'd want a new GTX. We have the unique opportunity with the electric coolant pump which will cool those turbos after shut down.

Kind of like a turbo timer. Especially nice to have if you happened to have beat on your car and then have to turn it off without giving it much time to cool down, which can happen from time to time.
 
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doublespaces

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Kind of like a turbo timer. Especially nice to have if you happened to have beat on your car and then have to turn it off without giving it much time to cool down, which can happen from time to time.
Coupled with a vented hood and I wouldn't think twice about parking it and walking inside. Even after a normal drive I still pop my hood before leaving the garage. The less baking all the plastic, wires, rubber experience the better.
 

Nick380

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I'm curious if you can code it in to run the water pump while the cars off until oil temps drop below a certain temp. The M turbo cars do this.
CCF3BD86-B395-4EDB-99F5-29EC07FA435C.png
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The water pump actually does come on with a heat management mode called component protection which is triggered over a certain oil or coolant temperature. There’s gotta be a table associated with that logic within DME.
 
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SLOWESTN54

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@Nick380 that’s interesting, it would be nice to allow the fan and water pump to run after the car is shut off. Almost like a max cool mode for when the cars off. My X6M after being shut off on a hot day will run the fan and auxiliary water pump, to a certain percent depending on how hot it is. I believe on those it’s intended to cool the turbos and keep the paint from bubbling on the hood.
 

Nick380

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@Nick380 that’s interesting, it would be nice to allow the fan and water pump to run after the car is shut off. Almost like a max cool mode for when the cars off. My X6M after being shut off on a hot day will run the fan and auxiliary water pump, to a certain percent depending on how hot it is. I believe on those it’s intended to cool the turbos and keep the paint from bubbling on the hood.
There’s gotta be something. Like a Oil temp and coolant temp vs DC on the water pump table the DME references for this component protection mode. I’ll see about digging into the function frame a little without ending up in the woods lol. Max cool just turns the water pump to 100% right?
 

wheela

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OM
View attachment 62065View attachment 62066The water pump actually does come on with a heat management mode called component protection which is triggered over a certain oil or coolant temperature. There’s gotta be a table associated with that logic within DME.

OMG, I just read this exact thing about running the water pump after shut down earlier this morning from an n55 publication, and then I see you post this! Haha!😂🤣
 

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