precision 6266 vs borg warner s366

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RosadoRacing
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precision 6266 vs borg warner s366

Post by RosadoRacing »

which turbo for 750-850whp? would like to know everyone's opinions on difference in spool, reliability and power.
NateDogg
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Re: precision 6266 vs borg warner s366

Post by NateDogg »

I like BW turbos. Reliable, serviceable, good value.

:twocents-02cents:
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RosadoRacing
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Re: precision 6266 vs borg warner s366

Post by RosadoRacing »

thanks I appreciate the feedback idk if it's the new changes to this site but this site is dead anyways bw 1 precision 0
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Re: precision 6266 vs borg warner s366

Post by harkey »

6266 spools like a bat out of hell on my buddys evo
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Re: precision 6266 vs borg warner s366

Post by RosadoRacing »

although my bw isn't a billet wheel so it spools 600rpm slower but around the same boost level I picked up 11mph and .5 sec in the 1/4 mile going from a 6265 to the s366. it's s great turbo and hopefully when I get the billet wheel installed spool will be much better. I think my motor or ka's in general enjoy the larger turbos cuz it really woke it up and this was on a.pretty rich tune 11.2 afr compared to 11.8 with the precision
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Re: precision 6266 vs borg warner s366

Post by R33E8 »

You might want to looking into the 6466 or 6766 if your goals are between 750-800.. I think the 6266 will run out of steam before then, but I haven't paid attention to many dyno sheets with 6266's maxed out so I may be wrong.. If I recall correctly, Precision only rates the 6266 to 735hp which from what I've seen will be about the most you'll be able to put down to the wheels.
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Re: precision 6266 vs borg warner s366

Post by NateDogg »

RosadoRacing wrote:although my bw isn't a billet wheel so it spools 600rpm slower but around the same boost level I picked up 11mph and .5 sec in the 1/4 mile going from a 6265 to the s366. it's s great turbo and hopefully when I get the billet wheel installed spool will be much better. I think my motor or ka's in general enjoy the larger turbos cuz it really woke it up and this was on a.pretty rich tune 11.2 afr compared to 11.8 with the precision
Are you getting a billet wheel from

That's pretty good trade-off if you can rev it high enough. I wouldn't worry about the tune so much 11.0 AFR is safe and not gonna rob more than 5hp.
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Re: precision 6266 vs borg warner s366

Post by O&Jperformance »

If you are looking for a turbo that spool quick and fast response there are different options out there my best recommendations will be like R33E8 said the 6466 will be great and the 6765 or 6766 from Precision they all do the job. We also have being working with the entry level from Comp Turbo and had great results with them so far on daily driver and race cars. Here is some info on them. If you need any info on the precision let me know.


CT3-6265 or CT4-6265 Billet X-HF Compressor

62mm Billet Compressor Wheel
CT3 Cover 3" Inlet 2" Outlet or CT4 Cover 4" Inlet 2.5" Outlet
65mm Turbine wheel
Turbine housing options:
- T3 .36 .48 .63 or .82 A/R with 4 bolt discharge
- T3 .63 or .82 A/R with 3" V-Band discharge
- T3 .63 A/R with 5 bolt discharge (with or without wastegate hole)
- T4 Tangential .58 .68 .81 & .96 A/R with 3" V-Band discharge
- T4 On-Center .58 A/R
Standard Bearing System


CT3-6262 or CT4-6262 Billet X-HF Compressor

62mm Billet Compressor Wheel
CT3 Cover 3" Inlet 2" Outlet or CT4 Cover 4" Inlet 2.5" Outlet
62mm Turbine wheel
Turbine housing options:
- T3 .36 .48 .63 or .82 A/R with 4 bolt discharge
- T3 .63 or .82 A/R with 3" V-Band discharge
- T3 .48 or .63 A/R with 5 bolt discharge (with or without wastegate hole)
- T4 Tangential .58 A/R with 3" V-Band discharge
- T4 On-Center .58 A/R
Standard Bearing System


CT3-6765 or CT4-6765 Billet X-HF Compressor

67mm Billet Compressor Wheel
CT3 Cover 3" Inlet 2" Outlet or CT4 Cover 4" Inlet 2.5" Outlet
65mm Turbine wheel
Turbine housing options:
- T3 .63 or .82 A/R with 4 bolt discharge
- T3 .63 or .82 A/R with 3" V-Band discharge
- T3 .63 A/R with 5 bolt discharge (with or without wastegate hole)
- T4 Tangential .58 .68 .81 & .96 A/R with 3" V-Band discharge
Standard Bearing System
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